Commit graph

2540 commits

Author SHA1 Message Date
Erico Nunes
50cbd5b4b3 docs: vhost-user-gpu: add protocol changes for EDID
VHOST_USER_GPU_GET_EDID is defined as a message from the backend to the
frontend to retrieve the EDID data for a given scanout.

The VHOST_USER_GPU_PROTOCOL_F_EDID protocol feature is defined as a way
to check whether this new message is supported or not.

Signed-off-by: Erico Nunes <ernunes@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230626164708.1163239-3-ernunes@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-07-10 16:17:07 -04:00
Thomas Huth
7233bd1223 docs/devel: Fix coding style in style.rst
As defined earlier in this file, the opening curly brace of
functions should be placed on a separate line. So we should
do it in the examples here, too.

Fixes: 821f296756 ("docs: document use of automatic cleanup functions in glib")
Reported-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Message-Id: <20230710092638.161625-1-thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-10 15:34:57 +02:00
Thomas Huth
9ffcbe2a60 os-posix: Allow 'chroot' via '-run-with' and deprecate the old '-chroot' option
We recently introduced "-run-with" for options that influence the
runtime behavior of QEMU. This option has the big advantage that it
can group related options (so that it is easier for the users to spot
them) and that the options become introspectable via QMP this way.
So let's start moving more switches into this option group, starting
with "-chroot" now.

Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Message-Id: <20230703074447.17044-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-10 15:34:57 +02:00
Konstantin Kostiuk
133789e1bf qga: Add new option --allow-rpcs
The allow-rpcs option accepts a comma-separated list of RPCs to
enable. This option is opposite to --block-rpcs. Using --block-rpcs
and --allow-rpcs at the same time is not allowed.

resolves: https://gitlab.com/qemu-project/qemu/-/issues/1505

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2023-07-10 15:54:40 +03:00
Philippe Mathieu-Daudé
c0716c81b2 hw/riscv/virt: Restrict ACLINT to TCG
The Advanced Core Local Interruptor (ACLINT) device can
only be used with TCG. Check for TCG enabled instead of
KVM being not. Only add the property when TCG is used.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230629121103.87733-3-philmd@linaro.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-07-10 22:29:15 +10:00
Nicholas Piggin
934676c7b7 ppc/pnv: SMT support for powernv
Set the TIR default value with the SMT thread index, and place some
standard limits on SMT configurations. Now powernv is able to boot
skiboot and Linux with a SMT topology, including booting a KVM guest.

There are several SPRs and other features (e.g., broadcast msgsnd)
that are not implemented, but not used by OPAL or Linux and can be
added incrementally.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-ID: <20230705120631.27670-4-npiggin@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-07-07 04:47:49 -03:00
Richard Henderson
97c81ef4b8 Administrative changes only:
* Deprecate 9p 'proxy' backend.
 
 * Raise status of 9p to 'Maintained'.
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Merge tag 'pull-9p-20230706' of https://github.com/cschoenebeck/qemu into staging

Administrative changes only:

* Deprecate 9p 'proxy' backend.

* Raise status of 9p to 'Maintained'.

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# gpg:                issuer "qemu_oss@crudebyte.com"
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# Primary key fingerprint: ECAB 1A45 4014 1413 BA38  4926 30DB 47C3 A012 D5F4
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* tag 'pull-9p-20230706' of https://github.com/cschoenebeck/qemu:
  MAINTAINERS: raise status of 9p to 'Maintained'
  9pfs: deprecate 'proxy' backend

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-06 18:19:42 +01:00
Peter Maydell
c74138c6c0 target/arm: Define neoverse-v1
Now that we have implemented support for FEAT_LSE2, we can define
a CPU model for the Neoverse-V1, and enable it for the virt and
sbsa-ref boards.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230704130647.2842917-3-peter.maydell@linaro.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-06 13:30:10 +01:00
Christian Schoenebeck
71d72ececa 9pfs: deprecate 'proxy' backend
As recent CVE-2023-2861 (fixed by f6b0de53fb) once again showed, the 9p
'proxy' fs driver is in bad shape. Using the 'proxy' backend was already
discouraged for safety reasons before and we recommended to use the
'local' backend (preferably in conjunction with its 'mapped' security
model) instead, but now it is time to officially deprecate the 'proxy'
backend.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <E1qDkmw-0007M1-8f@lizzy.crudebyte.com>
2023-07-06 11:42:08 +02:00
Yuquan Wang
62c2b8760b hw/arm/sbsa-ref: use XHCI to replace EHCI
The current sbsa-ref cannot use EHCI controller which is only
able to do 32-bit DMA, since sbsa-ref doesn't have RAM below 4GB.
Hence, this uses XHCI to provide a usb controller with 64-bit
DMA capablity instead of EHCI.

We bump the platform version to 0.3 with this change.  Although the
hardware at the USB controller address changes, the firmware and
Linux can both cope with this -- on an older non-XHCI-aware
firmware/kernel setup the probe routine simply fails and the guest
proceeds without any USB.  (This isn't a loss of functionality,
because the old USB controller never worked in the first place.) So
we can call this a backwards-compatible change and only bump the
minor version.

Signed-off-by: Yuquan Wang <wangyuquan1236@phytium.com.cn>
Message-id: 20230621103847.447508-2-wangyuquan1236@phytium.com.cn
[PMM: tweaked commit message; add line to docs about what
 changes in platform version 0.3]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-07-04 14:08:47 +01:00
Ilya Leoshkevich
abf7ba310b docs: Document security implications of debugging
Now that the GDB stub explicitly implements reading host files (note
that it was already possible by changing the emulated code to open and
read those files), concerns may arise that it undermines security.

Document the status quo, which is that the users are already
responsible for securing the GDB connection themselves.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230621203627.1808446-8-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230630180423.558337-38-alex.bennee@linaro.org>
2023-07-03 12:52:34 +01:00
Alex Bennée
43398409ce docs/devel: introduce some key concepts for QOM development
Using QOM correctly is increasingly important to maintaining a modern
code base. However the current documentation skips some important
concepts before launching into a simple example. Lets:

  - at least mention properties
  - mention TYPE_OBJECT and TYPE_DEVICE
  - talk about why we have realize/unrealize
  - mention the QOM tree
  - lightly re-arrange the order we mention things

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230630180423.558337-28-alex.bennee@linaro.org>
2023-07-03 12:52:26 +01:00
Alex Bennée
da966a8a7c docs/devel: split qom-api reference into new file
Lets try and keep the overview of the sub-system digestible by
splitting the core API stuff into a separate file. As QOM and QDEV
work together we should also try and enumerate the qdev_ functions.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230630180423.558337-27-alex.bennee@linaro.org>
2023-07-03 12:52:22 +01:00
Philippe Mathieu-Daudé
307c0a4ac9 docs/devel/qom.rst: Correct code style
Per commit 067109a11c ("docs/devel: mention the spacing requirement
for QOM"):

  For a storage structure the first declaration should always be
  called “parent_obj” and for a class structure the first member
  should always be called “parent_class”

Adapt the QOM rST document accordingly.

Reported-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230622101717.70468-1-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230630180423.558337-26-alex.bennee@linaro.org>
2023-07-03 12:52:20 +01:00
Alex Bennée
8b4528c829 docs/devel: add some front matter to the devel index
Give an overview of the most useful bits of the devel documentation to
read depending on what the developer wants to do.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230630180423.558337-23-alex.bennee@linaro.org>
2023-07-03 12:52:08 +01:00
Ani Sinha
d2ab529ec5 docs/devel: remind developers to run CI container pipeline when updating images
When new dependencies and packages are added to containers, its important to
run CI container generation pipelines on gitlab to make sure that there are no
obvious conflicts between packages that are being added and those that are
already present. Running CI container pipelines will make sure that there are
no such breakages before we commit the change updating the containers. Add a
line in the documentation reminding developers to run the pipeline before
submitting the change. It will also ease the life of the maintainers.

Signed-off-by: Ani Sinha <anisinha@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230506072012.10350-1-anisinha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230630180423.558337-5-alex.bennee@linaro.org>
2023-07-03 12:51:18 +01:00
Avihai Horon
745c42912a vfio/migration: Add support for switchover ack capability
Loading of a VFIO device's data can take a substantial amount of time as
the device may need to allocate resources, prepare internal data
structures, etc. This can increase migration downtime, especially for
VFIO devices with a lot of resources.

To solve this, VFIO migration uAPI defines "initial bytes" as part of
its precopy data stream. Initial bytes can be used in various ways to
improve VFIO migration performance. For example, it can be used to
transfer device metadata to pre-allocate resources in the destination.
However, for this to work we need to make sure that all initial bytes
are sent and loaded in the destination before the source VM is stopped.

Use migration switchover ack capability to make sure a VFIO device's
initial bytes are sent and loaded in the destination before the source
stops the VM and attempts to complete the migration.
This can significantly reduce migration downtime for some devices.

Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Tested-by: YangHang Liu <yanghliu@redhat.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2023-06-30 06:02:51 +02:00
Avihai Horon
eda7362af9 vfio/migration: Add VFIO migration pre-copy support
Pre-copy support allows the VFIO device data to be transferred while the
VM is running. This helps to accommodate VFIO devices that have a large
amount of data that needs to be transferred, and it can reduce migration
downtime.

Pre-copy support is optional in VFIO migration protocol v2.
Implement pre-copy of VFIO migration protocol v2 and use it for devices
that support it. Full description of it can be found in the following
Linux commit: 4db52602a607 ("vfio: Extend the device migration protocol
with PRE_COPY").

Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Tested-by: YangHang Liu <yanghliu@redhat.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2023-06-30 06:02:51 +02:00
Richard Henderson
017b2e7363 Accelerators patches
- MAINTAINERS: Update Roman Bolshakov email address
 - HAX: Fix a memory leak
 - HAX/NVMM/WHPX/HVF: Rename per-accel state as AccelCPUState
 - KVM: Restrict specific fields from ArchCPU
 - WHPX: Re-enable cross-build gitlab-ci job on case sensitive filesystems
 - WHPX: Fix error message when setting ProcessorCount fails
 - exec/memory: Add definitions for memory listener priorities
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Merge tag 'accel-20230628' of https://github.com/philmd/qemu into staging

Accelerators patches

- MAINTAINERS: Update Roman Bolshakov email address
- HAX: Fix a memory leak
- HAX/NVMM/WHPX/HVF: Rename per-accel state as AccelCPUState
- KVM: Restrict specific fields from ArchCPU
- WHPX: Re-enable cross-build gitlab-ci job on case sensitive filesystems
- WHPX: Fix error message when setting ProcessorCount fails
- exec/memory: Add definitions for memory listener priorities

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# gpg: Signature made Wed 28 Jun 2023 05:50:49 PM CEST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]

* tag 'accel-20230628' of https://github.com/philmd/qemu: (30 commits)
  exec/memory: Add symbol for the min value of memory listener priority
  exec/memory: Add symbol for memory listener priority for device backend
  exec/memory: Add symbolic value for memory listener priority for accel
  target/i386/WHPX: Fix error message when fail to set ProcessorCount
  target/riscv: Restrict KVM-specific fields from ArchCPU
  target/ppc: Restrict KVM-specific fields from ArchCPU
  target/arm: Restrict KVM-specific fields from ArchCPU
  hw/arm/sbsa-ref: Include missing 'sysemu/kvm.h' header
  hw/intc/arm_gic: Rename 'first_cpu' argument
  hw/intc/arm_gic: Un-inline GIC*/ITS class_name() helpers
  accel/kvm: Declare kvm_direct_msi_allowed in stubs
  accel/kvm: Re-include "exec/memattrs.h" header
  accel: Rename HVF 'struct hvf_vcpu_state' -> AccelCPUState
  accel: Rename 'cpu_state' -> 'cs'
  accel: Inline WHPX get_whpx_vcpu()
  accel: Rename WHPX 'struct whpx_vcpu' -> AccelCPUState
  accel: Remove WHPX unreachable error path
  accel: Inline NVMM get_qemu_vcpu()
  accel: Rename NVMM 'struct qemu_vcpu' -> AccelCPUState
  accel: Remove NVMM unreachable error path
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-29 08:12:48 +02:00
Richard Henderson
47d183b7a8 qemu-sparc queue
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Merge tag 'qemu-sparc-20230628' of https://github.com/mcayland/qemu into staging

qemu-sparc queue

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# gpg: Signature made Wed 28 Jun 2023 01:40:09 PM CEST
# gpg:                using RSA key CC621AB98E82200D915CC9C45BC2C56FAE0F321F
# gpg:                issuer "mark.cave-ayland@ilande.co.uk"
# gpg: Good signature from "Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: CC62 1AB9 8E82 200D 915C  C9C4 5BC2 C56F AE0F 321F

* tag 'qemu-sparc-20230628' of https://github.com/mcayland/qemu:
  escc: emulate dip switch language layout settings on SUN keyboard
  target/sparc: Use tcg_gen_lookup_and_goto_ptr for v9 WRASI
  target/sparc: Use DYNAMIC_PC_LOOKUP for v9 RETURN
  target/sparc: Use DYNAMIC_PC_LOOKUP for JMPL
  target/sparc: Use DYNAMIC_PC_LOOKUP for conditional branches
  target/sparc: Introduce DYNAMIC_PC_LOOKUP
  target/sparc: Drop inline markers from translate.c
  target/sparc: Fix npc comparison in sparc_tr_insn_start
  target/sparc: Use tcg_gen_lookup_and_goto_ptr in gen_goto_tb
  Revert "hw/sparc64/niagara: Use blk_name() instead of open-coding it"

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-28 15:55:54 +02:00
Philippe Mathieu-Daudé
098bfc01df docs/devel/testing: Update the 'Docker Debugging' section
Since commit 93cc0506f6 ("tests/docker: Use Fedora containers
for MinGW cross-builds in the gitlab-CI") the MinGW toolchain
is packaged inside the fedora-win[32/64]-cross images.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230624142211.8888-2-philmd@linaro.org>
2023-06-28 13:55:35 +02:00
Henrik Carlqvist
6b90a4cdc0 escc: emulate dip switch language layout settings on SUN keyboard
SUN Type 4, 5 and 5c keyboards have dip switches to choose the language layout
of the keyboard. Solaris makes an ioctl to query the value of the dipswitches
and uses that value to select keyboard layout.  Also the SUN bios like the one
in the file ss5.bin uses this value to support at least some keyboard layouts.
However, the OpenBIOS provided with qemu is hardcoded to always use an US
keyboard layout.

Before this patch, qemu allways gave dip switch value 0x21 (US keyboard),
this patch uses a command line switch like
"-global escc.chnA-sunkbd-layout=de" to select dip switch value. A table is
used to lookup values from arguments like:

-global escc.chnA-sunkbd-layout=fr
-global escc.chnA-sunkbd-layout=es

But the patch also accepts numeric dip switch values directly:

-global escc.chnA-sunkbd-layout=0x2b
-global escc.chnA-sunkbd-layout=43

Both values above are the same and select swedish keyboard as explained in
table 3-15 at
https://docs.oracle.com/cd/E19683-01/806-6642/new-43/index.html

Unless you want to do a full Solaris installation but happen to have
access to a Sun bios file, the easiest way to test that the patch works
is to:

qemu-system-sparc -global escc.chnA-sunkbd-layout=sv -bios /path/to/ss5.bin

If you already happen to have a Solaris installation in a qemu disk image
file you can easily try different keyboard layouts after this patch is
applied.

Signed-off-by: Henrik Carlqvist <hc1245@poolhem.se>
Message-Id: <20230623203007.56d3d182.hc981@poolhem.se>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
[MCA edit: update unsigned char to uint8_t, fix spacing issues]
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2023-06-28 10:54:25 +01:00
Klaus Jensen
e409c9057b docs: update hw/nvme documentation for TP4146
Update documentation for TP4146 ("Flexible Data Placement") emulation.

Reviewed-by: Jesper Wendel Devantier <j.devantier@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2023-06-28 11:22:49 +02:00
Richard Henderson
390e8fc6b0 virtio,pc,pci: fixes, features, cleanups
asymmetric crypto support for cryptodev-vhost-user
 rom migration when rom size changes
 poison get, inject, clear; mock cxl events and irq support for cxl
 shadow virtqueue offload support for vhost-vdpa
 vdpa now maps shadow vrings with MAP_SHARED
 max_cpus went up to 1024 and we default to smbios 3.0 for pc
 
 Fixes, cleanups all over the place. In particular
     hw/acpi: Fix PM control register access
 works around a very long standing bug in memory core.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

virtio,pc,pci: fixes, features, cleanups

asymmetric crypto support for cryptodev-vhost-user
rom migration when rom size changes
poison get, inject, clear; mock cxl events and irq support for cxl
shadow virtqueue offload support for vhost-vdpa
vdpa now maps shadow vrings with MAP_SHARED
max_cpus went up to 1024 and we default to smbios 3.0 for pc

Fixes, cleanups all over the place. In particular
    hw/acpi: Fix PM control register access
works around a very long standing bug in memory core.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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# gpg: Signature made Mon 26 Jun 2023 03:50:09 PM CEST
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [undefined]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (53 commits)
  vhost-vdpa: do not cleanup the vdpa/vhost-net structures if peer nic is present
  vhost_net: add an assertion for TAP client backends
  intel_iommu: Fix address space unmap
  intel_iommu: Fix flag check in replay
  intel_iommu: Fix a potential issue in VFIO dirty page sync
  vhost-user: fully use new backend/frontend naming
  virtio-scsi: avoid dangling host notifier in ->ioeventfd_stop()
  hw/i386/pc: Clean up pc_machine_initfn
  vdpa: fix not using CVQ buffer in case of error
  vdpa: mask _F_CTRL_GUEST_OFFLOADS for vhost vdpa devices
  vhost: fix vhost_dev_enable_notifiers() error case
  vdpa: Allow VIRTIO_NET_F_CTRL_GUEST_OFFLOADS in SVQ
  vdpa: Add vhost_vdpa_net_load_offloads()
  virtio-net: expose virtio_net_supported_guest_offloads()
  hw/net/virtio-net: make some VirtIONet const
  vdpa: reuse virtio_vdev_has_feature()
  include/hw/virtio: make some VirtIODevice const
  vdpa: map shadow vrings with MAP_SHARED
  vdpa: reorder vhost_vdpa_net_cvq_cmd_page_len function
  vdpa: do not block migration if device has cvq and x-svq=on
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-26 16:05:45 +02:00
Daniel P. Berrangé
1ddd2ff9cd gitlab: allow overriding name of the upstream repository
The CI rules have special logic for what happens in upstream. To enable
contributors who modify CI rules to test this logic, however, they need
to be able to override which repo is considered upstream. This
introduces the 'QEMU_CI_UPSTREAM' variable

  git push gitlab <branch> -o ci.variable=QEMU_CI_UPSTREAM=berrange

to make it look as if my namespace is the actual upstream. Namespace in
this context refers to the path fragment in gitlab URLs that is above
the repository. Typically this will be the contributor's gitlab login
name.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230608164018.2520330-3-berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-26 08:58:02 +02:00
Daniel P. Berrangé
d4c7a56539 gitlab: centralize the container tag name
We use a fixed container tag of 'latest' so that contributors' forks
don't end up with an ever growing number of containers as they work
on throwaway feature branches.

This fixed tag causes problems running CI upstream in stable staging
branches, however, because the stable staging branch will publish old
container content that clashes with that needed by primary staging
branch. This makes it impossible to reliably run CI pipelines in
parallel in upstream for different staging branches.

This introduces $QEMU_CI_CONTAINER_TAG global variable as a way to
change which tag container publishing uses. Initially it can be set
by contributors as a git push option if they want to override the
default use of 'latest' eg

  git push gitlab <branch> -o ci.variable=QEMU_CONTAINER_TAG=fish

this is useful if contributors need to run pipelines for different
branches concurrently in their forks.

Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230608164018.2520330-2-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-26 08:58:02 +02:00
Shashi Mallela
9fe2b4a289 hw/arm/sbsa-ref: add ITS support in SBSA GIC
Create ITS as part of SBSA platform GIC initialization.

GIC ITS information is in DeviceTree so TF-A can pass it to EDK2.

Bumping platform version to 0.2 as this is important hardware change.

Signed-off-by: Shashi Mallela <shashi.mallela@linaro.org>
Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Message-id: 20230619170913.517373-2-marcin.juszkiewicz@linaro.org
Co-authored-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-06-23 11:29:38 +01:00
Richard Henderson
57223a4c24 docs/system/arm: Document FEAT_RME
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20230622143046.1578160-1-richard.henderson@linaro.org
[PMM: fixed typo; note experimental status in emulation.rst too]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-06-23 11:21:43 +01:00
Ira Weiny
14180d6221 bswap: Add the ability to store to an unaligned 24 bit field
CXL has 24 bit unaligned fields which need to be stored to.  CXL is
specified as little endian.

Define st24_le_p() and the supporting functions to store such a field
from a 32 bit host native value.

The use of b, w, l, q as the size specifier is limiting.  So "24" was
used for the size part of the function name.

Reviewed-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20230526170010.574-2-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-06-22 18:55:14 -04:00
Philippe Mathieu-Daudé
de6cd7599b meson: Replace softmmu_ss -> system_ss
We use the user_ss[] array to hold the user emulation sources,
and the softmmu_ss[] array to hold the system emulation ones.
Hold the latter in the 'system_ss[]' array for parity with user
emulation.

Mechanical change doing:

  $ sed -i -e s/softmmu_ss/system_ss/g $(git grep -l softmmu_ss)

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230613133347.82210-10-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-20 10:01:30 +02:00
Marcin Juszkiewicz
ff49fb950d docs: sbsa: document board to firmware interface
We plan to add more hardware information into DeviceTree to limit amount
of hardcoded values in firmware.

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Message-id: 20230531171834.236569-1-marcin.juszkiewicz@linaro.org
[PMM: fix format nits, add text about platform version fields from
 a comment in the C source file]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-06-19 14:41:57 +01:00
Richard Henderson
0d7c8da0cc xenpvh5
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Merge tag 'xenpvh5-tag' of https://gitlab.com/sstabellini/qemu into staging

xenpvh5

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# gpg: Signature made Fri 16 Jun 2023 01:48:20 AM CEST
# gpg:                using RSA key D04E33ABA51F67BA07D30AEA894F8F4870E1AE90
# gpg: Good signature from "Stefano Stabellini <sstabellini@kernel.org>" [unknown]
# gpg:                 aka "Stefano Stabellini <stefano.stabellini@eu.citrix.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: D04E 33AB A51F 67BA 07D3  0AEA 894F 8F48 70E1 AE90

* tag 'xenpvh5-tag' of https://gitlab.com/sstabellini/qemu:
  test/qtest: add xepvh to skip list for qtest
  meson.build: enable xenpv machine build for ARM
  hw/arm: introduce xenpvh machine
  meson.build: do not set have_xen_pci_passthrough for aarch64 targets
  hw/xen/xen-hvm-common: Use g_new and error_report
  hw/xen/xen-hvm-common: skip ioreq creation on ioreq registration failure
  include/hw/xen/xen_common: return error from xen_create_ioreq_server
  xen-hvm: reorganize xen-hvm and move common function to xen-hvm-common
  hw/i386/xen/xen-hvm: move x86-specific fields out of XenIOState
  hw/i386/xen: rearrange xen_hvm_init_pc
  hw/i386/xen/: move xen-mapcache.c to hw/xen/

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-16 12:29:48 +02:00
Vikram Garhwal
733766cd37 hw/arm: introduce xenpvh machine
Add a new machine xenpvh which creates a IOREQ server to register/connect with
Xen Hypervisor.

Optional: When CONFIG_TPM is enabled, it also creates a tpm-tis-device, adds a
TPM emulator and connects to swtpm running on host machine via chardev socket
and support TPM functionalities for a guest domain.

Extra command line for aarch64 xenpvh QEMU to connect to swtpm:
    -chardev socket,id=chrtpm,path=/tmp/myvtpm2/swtpm-sock \
    -tpmdev emulator,id=tpm0,chardev=chrtpm \
    -machine tpm-base-addr=0x0c000000 \

swtpm implements a TPM software emulator(TPM 1.2 & TPM 2) built on libtpms and
provides access to TPM functionality over socket, chardev and CUSE interface.
Github repo: https://github.com/stefanberger/swtpm
Example for starting swtpm on host machine:
    mkdir /tmp/vtpm2
    swtpm socket --tpmstate dir=/tmp/vtpm2 \
    --ctrl type=unixio,path=/tmp/vtpm2/swtpm-sock &

Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2023-06-15 16:46:47 -07:00
Cédric Le Goater
f65f6ad5a7 aspeed: Introduce a "bmc-console" machine option
Most of the Aspeed machines use the UART5 device for the boot console,
and QEMU connects the first serial Chardev to this SoC device for this
purpose. See routine connect_serial_hds_to_uarts().

Nevertheless, some machines use another boot console, such as the fuji,
and commit 5d63d0c76c ("hw/arm/aspeed: Allow machine to set UART
default") introduced a SoC class attribute 'uart_default' and property
to be able to change the boot console device. It was later changed by
commit d2b3eaefb4 ("aspeed: Refactor UART init for multi-SoC machines").

The "bmc-console" machine option goes a step further and lets the user define
the UART device from the QEMU command line without introducing a new
machine definition. For instance, to use device UART3 (mapped on
/dev/ttyS2 under Linux) instead of the default UART5, one would use :

  -M ast2500-evb,bmc-console=uart3

Cc: Abhishek Singh Dagur <abhishek@drut.io>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-15 18:35:58 +02:00
Sunil V L
e158a6520a docs/system: riscv: Add pflash usage details
pflash devices can be used in virt machine for different
purposes like for ROM code or S-mode FW payload. Add a
section in the documentation on how to use pflash devices
for different purposes.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230601045910.18646-4-sunilvl@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:41:01 +10:00
Milan Zamazal
9c36407a44 docs: Fix trivial typos in vhost-user.rst
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2023-06-09 23:38:16 +03:00
Jagannathan Raman
7771e8b863
docs: fix multi-process QEMU documentation
Fix a typo in the system documentation for multi-process QEMU.

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-06-07 10:21:53 -04:00
Richard Henderson
f5e6786de4 target-arm queue:
* Support gdbstub (guest debug) in HVF
  * xnlx-versal: Support CANFD controller
  * bpim2u: New board model: Banana Pi BPI-M2 Ultra
  * Emulate FEAT_LSE2
  * allow DC CVA[D]P in user mode emulation
  * trap DCC access in user mode emulation
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Merge tag 'pull-target-arm-20230606' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * Support gdbstub (guest debug) in HVF
 * xnlx-versal: Support CANFD controller
 * bpim2u: New board model: Banana Pi BPI-M2 Ultra
 * Emulate FEAT_LSE2
 * allow DC CVA[D]P in user mode emulation
 * trap DCC access in user mode emulation

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# gpg: Signature made Tue 06 Jun 2023 02:47:17 AM PDT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [unknown]

* tag 'pull-target-arm-20230606' of https://git.linaro.org/people/pmaydell/qemu-arm: (42 commits)
  target/arm: trap DCC access in user mode emulation
  tests/tcg/aarch64: add DC CVA[D]P tests
  target/arm: allow DC CVA[D]P in user mode emulation
  target/arm: Enable FEAT_LSE2 for -cpu max
  tests/tcg/multiarch: Adjust sigbus.c
  tests/tcg/aarch64: Use stz2g in mte-7.c
  target/arm: Move mte check for store-exclusive
  target/arm: Relax ordered/atomic alignment checks for LSE2
  target/arm: Add SCTLR.nAA to TBFLAG_A64
  target/arm: Check alignment in helper_mte_check
  target/arm: Pass single_memop to gen_mte_checkN
  target/arm: Pass memop to gen_mte_check1*
  target/arm: Hoist finalize_memop out of do_fp_{ld, st}
  target/arm: Hoist finalize_memop out of do_gpr_{ld, st}
  target/arm: Load/store integer pair with one tcg operation
  target/arm: Sink gen_mte_check1 into load/store_exclusive
  target/arm: Use tcg_gen_qemu_{ld, st}_i128 in gen_sve_{ld, st}r
  target/arm: Use tcg_gen_qemu_st_i128 for STZG, STZ2G
  target/arm: Use tcg_gen_qemu_{st, ld}_i128 for do_fp_{st, ld}
  target/arm: Use tcg_gen_qemu_ld_i128 for LDXP
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-06 12:11:34 -07:00
Paolo Bonzini
e8e4298fea tests: Use separate virtual environment for avocado
This reverts commits eea2d14117 ("Makefile: remove $(TESTS_PYTHON)",
2023-05-26) and 9c6692db55 ("tests: Use configure-provided pyvenv for
tests", 2023-05-18).

Right now, there is a conflict between wanting a ">=" constraint when
using a distro-provided package and wanting a "==" constraint when
installing Avocado from PyPI; this would provide the best of both worlds
in terms of resiliency for both distros that have required packages and
distros that don't.

The conflict is visible also for meson, where we would like to install
the latest 0.63.x version but also accept a distro 1.1.x version.
But it is worse for avocado, for two reasons:

1) we cannot use an "==" constraint to install avocado if the venv
includes a system avocado.  The distro will package plugins that have
"==" constraints on the version that is included in the distro, and, using
"pip install avocado==88.1" on a venv that includes system packages will
result in this error:

   ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
   avocado-framework-plugin-varianter-yaml-to-mux 98.0 requires avocado-framework==98.0, but you have avocado-framework 88.1 which is incompatible.
   avocado-framework-plugin-result-html 98.0 requires avocado-framework==98.0, but you have avocado-framework 88.1 which is incompatible.
   make[1]: Leaving directory '/home/berrange/src/virt/qemu/build'

2) we cannot use ">=" either if the venv does _not_ include a system
avocado, because that would result in the installation of v101.0 which
is the one we've just reverted.

So the idea is to encode the dependencies as an (acceptable, locked)
tuple, like this hypothetical TOML that would be committed inside
python/ and used by mkvenv.py:

  [meson]
  meson = { minimum = "0.63.0", install = "0.63.3", canary = "meson" }

  [docs]
  # 6.0 drops support for Python 3.7
  sphinx = { minimum = "1.6", install = "<6.0", canary = "sphinx-build" }
  sphinx_rtd_theme = { minimum = "0.5" }

  [avocado]
  avocado-framework = { minimum = "88.1", install = "88.1", canary = "avocado" }

Once this is implemented, it would also be possible to install avocado in
pyvenv/ using "mkvenv.py ensure", thus using the distro package on Fedora
and CentOS Stream (the only distros where it's available).  But until
this is implemented, keep avocado in a separate venv.  There is still the
benefit of using a single python for meson custom_targets and for sphinx.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-06-06 16:29:53 +02:00
Richard Henderson
59b6b42cd3 target/arm: Enable FEAT_LSE2 for -cpu max
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230530191438.411344-21-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-06-06 10:19:39 +01:00
qianfan Zhao
8d7f954a7f docs: system: arm: Introduce bananapi_m2u
Add documents for Banana Pi M2U

Signed-off-by: qianfan Zhao <qianfanguijin@163.com>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
[PMM: Minor format fixes to correct sphinx errors]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-06-06 10:19:34 +01:00
Vikram Garhwal
042d6b0255 xlnx-versal: Connect Xilinx VERSAL CANFD controllers
Connect CANFD0 and CANFD1 on the Versal-virt machine and update xlnx-versal-virt
document with CANFD command line examples.

Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-06-06 10:19:30 +01:00
Paolo Bonzini
06831001ac atomics: eliminate mb_read/mb_set
qatomic_mb_read and qatomic_mb_set were the very first atomic primitives
introduced for QEMU; their semantics are unclear and they provide a false
sense of safety.

The last use of qatomic_mb_read() has been removed, so delete it.
qatomic_mb_set() instead can survive as an optimized
qatomic_set()+smp_mb(), similar to Linux's smp_store_mb(), but
rename it to qatomic_set_mb() to match the order of the two
operations.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-06-06 09:42:14 +02:00
Eric Blake
5cf899e215 qcow2: Explicit mention of padding bytes
Although we already covered the need for padding bytes with our
changes in commit 3ae3fcfa, commit 66fcbca5 (both v5.0.0) added one
byte and relied on the rest of the text for implicitly covering 7
padding bytes.  For consistency with other parts of the header (such
as the header extension format listing padding from n - m, or the
snapshot table entry listing variable padding), we might as well call
out the remaining 7 bytes as padding until such time (as any) as they
gain another meaning.

Signed-off-by: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20230522184631.47211-1-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
2023-06-02 11:24:18 -05:00
Alex Bennée
5485e52a33 qapi: make the vcpu parameters deprecated for 8.1
I don't think I can remove the parameters directly but certainly mark
them as deprecated.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20230526165401.574474-7-alex.bennee@linaro.org
Message-Id: <20230524133952.3971948-6-alex.bennee@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-06-01 11:05:05 -04:00
Alex Bennée
1a8fc85019 docs/deprecated: move QMP events bellow QMP command section
Also rename the section to make the fact this is part of the
management protocol even clearer.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20230526165401.574474-6-alex.bennee@linaro.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-06-01 11:05:05 -04:00
Peter Maydell
7e62609353 docs: Document decodetree named field syntax
Document the named field syntax that we want to implement for the
decodetree script.  This allows a field to be defined in terms of
some other field that the instruction pattern has already set, for
example:

   %sz_imm 10:3 sz:3 !function=expand_sz_imm

to allow a function to be passed both an immediate field from the
instruction and also a sz value which might have been specified by
the instruction pattern directly (sz=1, etc) rather than being a
simple field within the instruction.

Note that the restriction on not having the format referring to the
pattern and the pattern referring to the format simultaneously is a
restriction of the decoder generator rather than inherently being a
silly thing to do.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230523120447.728365-3-peter.maydell@linaro.org>
2023-05-30 10:55:39 -07:00
Marcin Juszkiewicz
ec683110de docs: sbsa: correct graphics card name
We moved from VGA to Bochs to have PCIe card.

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-05-30 15:50:17 +01:00
Enze Li
5d6c687c9d Update copyright dates to 2023
I noticed that in the latest version, the copyright string is still
2022, even though 2023 is halfway through.  This patch fixes that and
fixes the documentation along with it.

Signed-off-by: Enze Li <lienze@kylinos.cn>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230525064345.1152801-1-lienze@kylinos.cn
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-05-30 15:50:17 +01:00
Akihiko Odaki
c37d98f3a9 docs/system/devices/igb: Note igb is tested for DPDK
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23 15:20:15 +08:00
Akihiko Odaki
8e6c718a6a Fix references to igb Avocado test
Fixes: 9f95111474 ("tests/avocado: re-factor igb test to avoid timeouts")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23 15:20:15 +08:00
Richard Henderson
886c0453cb QAPI patches patches for 2023-05-17
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Merge tag 'pull-qapi-2023-05-17-v2' of https://repo.or.cz/qemu/armbru into staging

QAPI patches patches for 2023-05-17

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# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [undefined]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* tag 'pull-qapi-2023-05-17-v2' of https://repo.or.cz/qemu/armbru:
  docs/interop: Delete qmp-intro.txt
  docs/interop/qmp-spec: Update error description for parsing errors
  docs/interop: Convert qmp-spec.txt to rST
  qapi: Improve error message for description following section

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-05-22 15:54:21 -07:00
Richard Henderson
ad3387396a Block layer patches
- qcow2 spec: Rename "zlib" compression to "deflate"
 - Honour graph read lock even in the main thread + prerequisite fixes
 - aio-posix: do not nest poll handlers (fixes infinite recursion)
 - Refactor QMP blockdev transactions
 - graph-lock: Disable locking for now
 - iotests/245: Check if 'compress' driver is available
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Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging

Block layer patches

- qcow2 spec: Rename "zlib" compression to "deflate"
- Honour graph read lock even in the main thread + prerequisite fixes
- aio-posix: do not nest poll handlers (fixes infinite recursion)
- Refactor QMP blockdev transactions
- graph-lock: Disable locking for now
- iotests/245: Check if 'compress' driver is available

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# gpg:                using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
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# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]

* tag 'for-upstream' of https://repo.or.cz/qemu/kevin: (21 commits)
  iotests: Test commit with iothreads and ongoing I/O
  nbd/server: Fix drained_poll to wake coroutine in right AioContext
  graph-lock: Disable locking for now
  tested: add test for nested aio_poll() in poll handlers
  aio-posix: do not nest poll handlers
  iotests/245: Check if 'compress' driver is available
  graph-lock: Honour read locks even in the main thread
  blockjob: Adhere to rate limit even when reentered early
  test-bdrv-drain: Call bdrv_co_unref() in coroutine context
  test-bdrv-drain: Take graph lock more selectively
  qemu-img: Take graph lock more selectively
  qcow2: Unlock the graph in qcow2_do_open() where necessary
  block/export: Fix null pointer dereference in error path
  block: Call .bdrv_co_create(_opts) unlocked
  docs/interop/qcow2.txt: fix description about "zlib" clusters
  blockdev: qmp_transaction: drop extra generic layer
  blockdev: use state.bitmap in block-dirty-bitmap-add action
  blockdev: transaction: refactor handling transaction properties
  blockdev: qmp_transaction: refactor loop to classic for
  blockdev: transactions: rename some things
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-05-22 07:04:50 -07:00
Peter Maydell
0ec4468f23 docs/interop: Delete qmp-intro.txt
qmp-intro.txt is quite small and provides very little information
that isn't already in the documentation elsewhere.  Fold the example
command lines into qemu-options.hx, and delete the now-unneeded plain
text document.

While we're touching the qemu-options.hx documentation text,
wordsmith it a little bit and improve the rST formatting.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20230515162245.3964307-4-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2023-05-22 10:22:29 +02:00
Peter Maydell
8a85b8ec3d docs/interop/qmp-spec: Update error description for parsing errors
The description text for a parsing error has changed since the
spec doc was first written; update the example in the docs.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20230515162245.3964307-3-peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2023-05-22 10:22:29 +02:00
Peter Maydell
d56572584d docs/interop: Convert qmp-spec.txt to rST
Convert the qmp-spec.txt document to restructuredText.
Notable points about the conversion:
 * numbers at the start of section headings are removed, to match
   the style of the rest of the manual
 * cross-references to other sections or documents are hyperlinked
 * various formatting tweaks (notably the examples, which need the
   -> and <- prefixed so the QMP code-block lexer will accept them)
 * English prose fixed in a few places

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20230515162245.3964307-2-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
[.. code-block:: dumbed down to :: to work around CI failure]
2023-05-22 10:21:01 +02:00
Akihiro Suda
41f8b63339 docs/interop/qcow2.txt: fix description about "zlib" clusters
"zlib" clusters are actually raw deflate (RFC1951) clusters without
zlib headers.

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Message-Id: <168424874322.11954.1340942046351859521-0@git.sr.ht>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-05-19 19:12:12 +02:00
Gregory Price
adacc814f5 hw/cxl: Multi-Region CXL Type-3 Devices (Volatile and Persistent)
This commit enables each CXL Type-3 device to contain one volatile
memory region and one persistent region.

Two new properties have been added to cxl-type3 device initialization:
    [volatile-memdev] and [persistent-memdev]

The existing [memdev] property has been deprecated and will default the
memory region to a persistent memory region (although a user may assign
the region to a ram or file backed region). It cannot be used in
combination with the new [persistent-memdev] property.

Partitioning volatile memory from persistent memory is not yet supported.

Volatile memory is mapped at DPA(0x0), while Persistent memory is mapped
at DPA(vmem->size), per CXL Spec 8.2.9.8.2.0 - Get Partition Info.

Signed-off-by: Gregory Price <gregory.price@memverge.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Tested-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Message-Id: <20230421160827.2227-4-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-05-19 01:36:09 -04:00
Raghu H
0795b98f09 docs/cxl: Replace unsupported AARCH64 with x86_64
Currently Qemu CXL emulation support is not availabe on AARCH64 but its
available with qemu x86_64 architecture, updating the document to reflect
the supported platform.

Signed-off-by: Raghu H <raghuhack78@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20230421134507.26842-4-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-05-19 01:36:09 -04:00
Raghu H
9830ea6126 docs/cxl: Remove incorrect CXL type 3 size parameter
cxl-type3 memory size is read directly from the provided memory backed end
device. Remove non existent size option

Signed-off-by: Raghu H <raghuhack78@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20230421134507.26842-3-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-05-19 01:36:09 -04:00
Brice Goglin
ca4750583a docs/cxl: fix some typos
Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20230421134507.26842-2-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-05-19 01:36:09 -04:00
Richard Henderson
f0b95ab6b8 * kvm: enable dirty ring for arm64
* target/i386: new features
 * target/i386: AVX fixes
 * configure: create a python venv unconditionally
 * meson: bump to 0.63.0 and move tests from configure
 * meson: Pass -j option to sphinx
 * drop support for Python 3.6
 * fix check-python-tox
 * fix "make clean" in the source directory
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* kvm: enable dirty ring for arm64
* target/i386: new features
* target/i386: AVX fixes
* configure: create a python venv unconditionally
* meson: bump to 0.63.0 and move tests from configure
* meson: Pass -j option to sphinx
* drop support for Python 3.6
* fix check-python-tox
* fix "make clean" in the source directory

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# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [undefined]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
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#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (68 commits)
  docs/devel: update build system docs
  configure: remove unnecessary check
  configure: reorder option parsing code
  configure: remove unnecessary mkdir
  configure: do not rerun the tests with -Werror
  configure: remove compiler sanity check
  build: move --disable-debug-info to meson
  build: move compiler version check to meson
  build: move remaining compiler flag tests to meson
  build: move warning flag selection to meson
  build: move stack protector flag selection to meson
  build: move coroutine backend selection to meson
  build: move SafeStack tests to meson
  build: move sanitizer tests to meson
  meson: prepare move of QEMU_CFLAGS to meson
  configure, meson: move --enable-modules to Meson
  configure: remove pkg-config functions
  build: move glib detection and workarounds to meson
  meson: drop unnecessary declare_dependency()
  meson: add more version numbers to the summary
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-05-18 07:52:12 -07:00
Paolo Bonzini
fe3ab4eb2d docs/devel: update build system docs
configure is only doing compiler and host setup now, so adjust the
relevant documentation.  It is also possible to build emulators with
ninja directly if one is so inclined, so mention that as well.

The Python virtual environment set up is a new major task of configure
as well.  Mention it in the list of produced files, while leaving it
for a future patch to document how it works and how ``mkvenv ensure``
is used.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-05-18 13:35:28 +02:00
Peter Maydell
91608e2a44 docs: Convert u2f.txt to rST
Convert the u2f.txt file to rST, and place it in the right place
in our manual layout. The old text didn't fit very well into our
manual style, so the new version ends up looking like a rewrite,
although some of the original text is preserved:

 * the 'building' section of the old file is removed, since we
   generally assume that users have already built QEMU
 * some rather verbose text has been cut back
 * document the passthrough device first, on the assumption
   that's most likely to be of interest to users
 * cut back on the duplication of text between sections
 * format example command lines etc with rST

As it's a short document it seemed simplest to do this all
in one go rather than try to do a minimal syntactic conversion
and then clean up the wording and layout.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20230421163734.1152076-1-peter.maydell@linaro.org
2023-05-18 11:40:32 +01:00
Paolo Bonzini
34f983d86f build: move sanitizer tests to meson
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-05-18 08:53:52 +02:00
Paolo Bonzini
877c556705 configure: remove pkg-config functions
All uses of pkg-config have been moved to Meson.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-05-18 08:53:52 +02:00
Paolo Bonzini
a0cbd2e849 meson: use prefer_static option
The option is new in Meson 0.63 and removes the need to pass "static:
true" to all dependency and find_library invocation.  Actually cleaning
up the invocations is left for a separate patch.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-05-18 08:53:51 +02:00
Paolo Bonzini
5591b74511 Python: Drop support for Python 3.6
Python 3.6 was EOL 2021-12-31. Newer versions of upstream libraries have
begun dropping support for this version and it is becoming more
cumbersome to support. Avocado-framework and qemu.qmp each have their
own reasons for wanting to drop Python 3.6, but won't until QEMU does.

Versions of Python available in our supported build platforms as of today,
with optional versions available in parentheses:

openSUSE Leap 15.4: 3.6.15 (3.9.10, 3.10.2)
CentOS Stream 8:    3.6.8  (3.8.13, 3.9.16)
CentOS Stream 9:    3.9.13
Fedora 36:          3.10
Fedora 37:          3.11
Debian 11:          3.9.2
Alpine 3.14, 3.15:  3.9.16
Alpine 3.16, 3.17:  3.10.10
Ubuntu 20.04 LTS:   3.8.10
Ubuntu 22.04 LTS:   3.10.4
NetBSD 9.3:         3.9.13*
FreeBSD 12.4:       3.9.16
FreeBSD 13.1:       3.9.16
OpenBSD 7.2:        3.9.16

Note: Our VM tests install 3.9 explicitly for FreeBSD and 3.10 for
NetBSD; the default for "python" or "python3" in FreeBSD is
3.9.16. NetBSD does not appear to have a default meta-package, but
offers several options, the lowest of which is 3.7.15. "python39"
appears to be a pre-requisite to one of the other packages we request in
tests/vm/netbsd. pip, ensurepip and other Python essentials are
currently only available for Python 3.10 for NetBSD.

CentOS and OpenSUSE support parallel installation of multiple Python
interpreters, and binaries in /usr/bin will always use Python 3.6.  However,
the newly introduced support for virtual environments ensures that all build
steps that execute QEMU Python code use a single interpreter.

Since it is safe to under our supported platform policy, bump our
minimum supported version of Python to 3.7.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20230511035435.734312-24-jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-05-18 08:53:51 +02:00
John Snow
6f6652ebc2 configure: bootstrap sphinx with mkvenv
When docs are explicitly requested, require Sphinx>=1.6.0. When docs are
explicitly disabled, don't bother to check for Sphinx at all. If docs
are set to "auto", attempt to locate Sphinx, but continue onward if it
wasn't located.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20230511035435.734312-22-jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-05-18 08:53:51 +02:00
John Snow
9c6692db55 tests: Use configure-provided pyvenv for tests
This patch changes how the avocado tests are provided, ever so
slightly. Instead of creating a new testing venv, use the
configure-provided 'pyvenv' instead, and install optional packages into
that.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20230511035435.734312-20-jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-05-18 08:53:51 +02:00
Fabiano Rosas
ed8d95182b meson: Pass -j option to sphinx
Save a bit of build time by passing the number of jobs option to
sphinx.

We cannot use  the -j option from make because  meson does not support
setting build time parameters for custom targets. Use nproc instead or
the equivalent sphinx option "-j  auto", if that is available (version
>=1.7.0).

Also make sure our plugins support parallelism and report it properly
to sphinx. Particularly, implement the merge_domaindata method in
DBusDomain that is used to merge in data from other subprocesses.

Tested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Message-Id: <20230503203947.3417-2-farosas@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-05-18 08:53:50 +02:00
Richard Henderson
12fde9bcdb tcg: Add INDEX_op_qemu_{ld,st}_i128
Add opcodes for backend support for 128-bit memory operations.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-05-16 16:30:25 -07:00
Richard Henderson
0cadc1eda1 tcg: Unify helper_{be,le}_{ld,st}*
With the current structure of cputlb.c, there is no difference
between the little-endian and big-endian entry points, aside
from the assert.  Unify the pairs of functions.

Hoist the qemu_{ld,st}_helpers arrays to tcg.c.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-05-16 15:21:39 -07:00
Lizhi Yang
c70bb9a771 docs/about/emulation: fix typo
Duplicated word "are".

Signed-off-by: Lizhi Yang <sledgeh4w@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230511080119.99018-1-sledgeh4w@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-05-16 09:14:18 +02:00
Ani Sinha
2a851fca9f docs/devel: remind developers to run CI container pipeline when updating images
When new dependencies and packages are added to containers, its important to
run CI container generation pipelines on gitlab to make sure that there are no
obvious conflicts between packages that are being added and those that are
already present. Running CI container pipelines will make sure that there are
no such breakages before we commit the change updating the containers. Add a
line in the documentation reminding developers to run the pipeline before
submitting the change. It will also ease the life of the maintainers.

Signed-off-by: Ani Sinha <anisinha@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230506072012.10350-1-anisinha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-05-16 09:14:18 +02:00
Claudio Imbrenda
80bd81cadd util/async-teardown: wire up query-command-line-options
Add new -run-with option with an async-teardown=on|off parameter. It is
visible in the output of query-command-line-options QMP command, so it
can be discovered and used by libvirt.

The option -async-teardown is now redundant, deprecate it.

Reported-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Fixes: c891c24b1a ("os-posix: asynchronous teardown for shutdown on Linux")
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-Id: <20230505120051.36605-2-imbrenda@linux.ibm.com>
[thuth: Add curly braces to fix error with GCC 8.5, fix bug in deprecated.rst]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-05-16 09:14:18 +02:00
Sam Li
01562fee5f docs/zoned-storage:add zoned emulation use case
Add the documentation about the example of using virtio-blk driver
to pass the zoned block devices through to the guest.

Signed-off-by: Sam Li <faithilikerun@gmail.com>
Message-id: 20230508051916.178322-5-faithilikerun@gmail.com
[Fix pre-formatted code syntax
--Stefan]
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-05-15 08:19:04 -04:00
Sam Li
90fd974668 docs/zoned-storage: add zoned device documentation
Add the documentation about the zoned device support to virtio-blk
emulation.

Signed-off-by: Sam Li <faithilikerun@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Dmitry Fomichev <dmitry.fomichev@wdc.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20230508045533.175575-9-faithilikerun@gmail.com
Message-id: 20230324090605.28361-9-faithilikerun@gmail.com
[Add index-api.rst to fix "zoned-storage.rst:document isn't included in
any toctree" error and fix pre-formatted code syntax.
--Stefan]
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-05-15 08:17:34 -04:00
Peter Maydell
d6359e150d docs: Remove unused weirdly-named cross-reference targets
In the doc sources, we have a few cross-reference targets with odd
names "pcsys_005fxyz".  These are the legacy of the semi-automated
conversion of the old info docs to rST (the '005f' is because ASCII
0x5f is '_' and the old info link names had underscores in them).

Remove the targets which nothing links to, and rename the two targets
which are used to something a bit more descriptive.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230421163642.1151904-1-peter.maydell@linaro.org
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2023-05-12 15:43:38 +01:00
Richard Henderson
fff86d48a2 Migration Pull request (20230509 vintage) take 2
Hi
 
 In this take 2:
 - Change uint -> uint32_t to fix mingw32 compilation.
 
 Please apply.
 [take 1]
 In this PULL request:
 - 1st part of colo support for multifd (lukas)
 - 1st part of disabling colo option (vladimir)
 
 Please, apply.
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Merge tag 'migration-20230509-pull-request' of https://gitlab.com/juan.quintela/qemu into staging

Migration Pull request (20230509 vintage) take 2

Hi

In this take 2:
- Change uint -> uint32_t to fix mingw32 compilation.

Please apply.
[take 1]
In this PULL request:
- 1st part of colo support for multifd (lukas)
- 1st part of disabling colo option (vladimir)

Please, apply.

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* tag 'migration-20230509-pull-request' of https://gitlab.com/juan.quintela/qemu:
  migration: block incoming colo when capability is disabled
  migration: disallow change capabilities in COLO state
  migration: process_incoming_migration_co: simplify code flow around ret
  migration: drop colo_incoming_thread from MigrationIncomingState
  build: move COLO under CONFIG_REPLICATION
  colo: make colo_checkpoint_notify static and provide simpler API
  block/meson.build: prefer positive condition for replication
  multifd: Add the ramblock to MultiFDRecvParams
  ram: Let colo_flush_ram_cache take the bitmap_mutex
  ram: Add public helper to set colo bitmap

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-05-11 05:55:12 +01:00
Vladimir Sementsov-Ogievskiy
121ccedc2b migration: block incoming colo when capability is disabled
We generally require same set of capabilities on source and target.
Let's require x-colo capability to use COLO on target.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Message-Id: <20230428194928.1426370-11-vsementsov@yandex-team.ru>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-05-10 18:48:12 +02:00
Alex Bennée
ab9d29b0a4 docs: document breakpoint and watchpoint support
This varies by accelerator. Also mention the modern bear trap that is
ASLR.

Message-Id: <20230503091244.1450613-4-alex.bennee@linaro.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2023-05-10 15:58:17 +01:00
Richard Henderson
568992e344 QAPI patches patches for 2023-05-09
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Merge tag 'pull-qapi-2023-05-09-v2' of https://repo.or.cz/qemu/armbru into staging

QAPI patches patches for 2023-05-09

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* tag 'pull-qapi-2023-05-09-v2' of https://repo.or.cz/qemu/armbru:
  qapi: Reformat doc comments to conform to current conventions
  qga/qapi-schema: Reformat doc comments to conform to current conventions
  docs/devel/qapi-code-gen: Update doc comment conventions
  qapi: Section parameter @indent is no longer used, drop
  qapi: Relax doc string @name: description indentation rules
  qapi: Rewrite parsing of doc comment section symbols and tags
  qapi: Fix argument description indentation stripping
  tests/qapi-schema/doc-good: Improve argument description tests
  tests/qapi-schema/doc-good: Improve a comment
  qapi/dump: Indent bulleted lists consistently
  qapi: Tidy up a slightly awkward TODO comment
  sphinx/qapidoc: Do not emit TODO sections into user manuals
  Revert "qapi: BlockExportRemoveMode: move comments to TODO"
  meson: Fix to make QAPI generator output depend on main.py
  qapi: Fix crash on stray double quote character
  docs/devel/qapi-code-gen: Turn FIXME admonitions into comments
  docs/devel/qapi-code-gen: Clean up use of quotes a bit

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-05-10 13:11:29 +01:00
Markus Armbruster
9d167491cb docs/devel/qapi-code-gen: Update doc comment conventions
The commit before previous relaxed the indentation rules to let us
improve the doc comment conventions.  This commit changes the written
conventions.  The next commits will update QAPI schemas to conform to
them.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-16-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
2023-05-10 10:01:01 +02:00
Markus Armbruster
08349786c8 qapi: Relax doc string @name: description indentation rules
The QAPI schema doc comment language provides special syntax for
command and event arguments, struct and union members, alternate
branches, enumeration values, and features: descriptions starting with
"@name:".

By convention, we format them like this:

    # @name: Lorem ipsum dolor sit amet, consectetur adipiscing elit,
    #        sed do eiusmod tempor incididunt ut labore et dolore
    #        magna aliqua.

Okay for names as short as "name", but we have much longer ones.  Their
description gets squeezed against the right margin, like this:

    # @dirty-sync-missed-zero-copy: Number of times dirty RAM synchronization could
    #                               not avoid copying dirty pages. This is between
    #                               0 and @dirty-sync-count * @multifd-channels.
    #                               (since 7.1)

The description text is effectively just 50 characters wide.  Easy
enough to read, but can be cumbersome to write.

The awkward squeeze against the right margin makes people go beyond it,
which produces two undesirables: arguments about style, and descriptions
that are unnecessarily hard to read, like this one:

    # @postcopy-vcpu-blocktime: list of the postcopy blocktime per vCPU.  This is
    #                           only present when the postcopy-blocktime migration capability
    #                           is enabled. (Since 3.0)

We could instead format it like

    # @postcopy-vcpu-blocktime:
    # list of the postcopy blocktime per vCPU.  This is only present
    # when the postcopy-blocktime migration capability is
    # enabled. (Since 3.0)

or, since the commit before previous, like

    # @postcopy-vcpu-blocktime:
    # 	  list of the postcopy blocktime per vCPU.  This is only present
    # 	  when the postcopy-blocktime migration capability is
    # 	  enabled. (Since 3.0)

However, I'd rather have

    # @postcopy-vcpu-blocktime: list of the postcopy blocktime per vCPU.
    #     This is only present when the postcopy-blocktime migration
    #     capability is enabled.  (Since 3.0)

because this is how rST field and option lists work.

To get this, we need to let the first non-blank line after the
"@name:" line determine expected indentation.

This fills up the indentation pitfall mentioned in
docs/devel/qapi-code-gen.rst.  A related pitfall still exists.  Update
the text to show it.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-14-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
[Work around lack of walrus operator in Python 3.7 and older]
2023-05-10 10:00:40 +02:00
Markus Armbruster
f57e1d05bf sphinx/qapidoc: Do not emit TODO sections into user manuals
QAPI doc comments are for QMP users: they go into the "QEMU QMP
Reference Manual" and the "QEMU Storage Daemon QMP Reference Manual".

The doc comment TODO sections are for somebody else, namely for the
people who can do: developers.  Do not emit them into the user
manuals.

This elides the following TODOs:

* SchemaInfoCommand

  # TODO: @success-response (currently irrelevant, because it's QGA, not QMP)

  This is a note to developers adding introspection to the guest
  agent.  It makes no sense to users.

* @query-hotpluggable-cpus

  # TODO: Better documentation; currently there is none.

  This is a reminder for developers.  It doesn't help users.

* @device_add

  # TODO: This command effectively bypasses QAPI completely due to its
  #       "additional arguments" business.  It shouldn't have been added to
  #       the schema in this form.  It should be qapified properly, or
  #       replaced by a properly qapified command.

  Likewise.

Eliding them is an improvement.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-7-armbru@redhat.com>
Reviewed-by: Ani Sinha <anisinha@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
2023-05-09 09:10:14 +02:00
Markus Armbruster
a2836b32b0 docs/devel/qapi-code-gen: Turn FIXME admonitions into comments
We have two FIXME notes.  These FIXMEs are for QAPI developers.  They
are not useful for QAPI schema developers.  They are marked up as
admonitions, which makes them look important in generated HTML.

Turn them into comments.  QAPI developers will still see them (they
read and write the .rst).  QAPI schema developers may still see
them (if they read the .rst instead of the generated .html), but "this
is just for QAPI developers" should be more obvious.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-3-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
2023-05-09 08:51:48 +02:00
Markus Armbruster
0c7811aeb9 docs/devel/qapi-code-gen: Clean up use of quotes a bit
Section "Definition documentation" uses both single and double quotes
around doc text snippets.  Stick to double quotes.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-2-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
2023-05-09 08:51:27 +02:00
Paolo Bonzini
23b2a3be99 docs: clarify --without-default-devices
--without-default-devices is a specialized option that should only be used
when configs/devices/ is changed manually.

Explain the model towards which we should tend, with respect to failures
to start guests and to run "make check".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-05-08 19:04:52 +02:00
Peter Maydell
ac64ebbecf docs/about/deprecated.rst: Add "since 7.1" tag to dtb-kaslr-seed deprecation
In commit 5242876f37 we deprecated the dtb-kaslr-seed property of
the virt board, but forgot the "since n.n" tag in the documentation
of this in deprecated.rst.

This deprecation note first appeared in the 7.1 release, so
retrospectively add the correct "since 7.1" annotation to it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20230420122256.1023709-1-peter.maydell@linaro.org
2023-05-02 15:47:40 +01:00
Peter Maydell
34c18203d4 qmp: Deprecate 'singlestep' member of StatusInfo
The 'singlestep' member of StatusInfo has never done what the QMP
documentation claims it does.  What it actually reports is whether
TCG is working in "one guest instruction per translation block" mode.

We no longer need this field for the HMP 'info status' command, as
we've moved that information to 'info jit'.  It seems unlikely that
anybody is monitoring the state of this obscure TCG setting via QMP,
especially since QMP provides no means for changing the setting.  So
simply deprecate the field, without providing any replacement.

Until we do eventually delete the member, correct the misstatements
in the QAPI documentation about it.

If we do find that there are users for this, then the most likely way
we would provide replacement access to the information would be to
put the accelerator QOM object at a well-known path such as
/machine/accel, which could then be used with the existing qom-set
and qom-get commands.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20230417164041.684562-11-peter.maydell@linaro.org
2023-05-02 15:47:40 +01:00
Peter Maydell
e9ccfdd91d hmp: Add 'one-insn-per-tb' command equivalent to 'singlestep'
The 'singlestep' HMP command is confusing, because it doesn't
actually have anything to do with single-stepping the CPU.  What it
does do is force TCG emulation to put one guest instruction in each
TB, which can be useful in some situations.

Create a new HMP command  'one-insn-per-tb', so we can document that
'singlestep' is just a deprecated synonym for it, and eventually
perhaps drop it.

We aren't obliged to do deprecate-and-drop for HMP commands,
but it's easy enough to do so, so we do.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230417164041.684562-9-peter.maydell@linaro.org
2023-05-02 15:47:40 +01:00
Peter Maydell
12fd0f41d0 Document that -singlestep command line option is deprecated
Document that the -singlestep command line option is now
deprecated, as it is replaced by either the TCG accelerator
property 'one-insn-per-tb' for system emulation or the new
'-one-insn-per-tb' option for usermode emulation, and remove
the only use of the deprecated syntax from a README.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230417164041.684562-7-peter.maydell@linaro.org
2023-05-02 15:47:40 +01:00
Peter Maydell
060e0cd751 bsd-user: Add '-one-insn-per-tb' option equivalent to '-singlestep'
The '-singlestep' option is confusing, because it doesn't actually
have anything to do with single-stepping the CPU. What it does do
is force TCG emulation to put one guest instruction in each TB,
which can be useful in some situations.

Create a new command line argument -one-insn-per-tb, so we can
document that -singlestep is just a deprecated synonym for it,
and eventually perhaps drop it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230417164041.684562-6-peter.maydell@linaro.org
2023-05-02 15:47:40 +01:00
Peter Maydell
e99c1f89b2 linux-user: Add '-one-insn-per-tb' option equivalent to '-singlestep'
The '-singlestep' option is confusing, because it doesn't actually
have anything to do with single-stepping the CPU. What it does do
is force TCG emulation to put one guest instruction in each TB,
which can be useful in some situations.

Create a new command line argument -one-insn-per-tb, so we can
document that -singlestep is just a deprecated synonym for it,
and eventually perhaps drop it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230417164041.684562-5-peter.maydell@linaro.org
2023-05-02 15:47:40 +01:00
Richard Henderson
9b112b1b79 QAPI patches patches for 2023-04-28
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Merge tag 'pull-qapi-2023-04-28' of https://repo.or.cz/qemu/armbru into staging

QAPI patches patches for 2023-04-28

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* tag 'pull-qapi-2023-04-28' of https://repo.or.cz/qemu/armbru:
  docs/devel/qapi-code-gen: Describe some doc markup pitfalls
  qapi storage-daemon/qapi: Fix documentation section structure
  qapi: Format since information the conventional way: (since X.Y)
  qapi: Fix misspelled section tags in doc comments
  qapi: Replace ad hoc "since" documentation by member documentation
  qapi: Fix argument documentation markup
  qga/qapi-schema: Fix member documentation markup
  qapi: Fix unintended definition lists in documentation
  qapi: Fix bullet list markup in documentation
  qapi: Delete largely misleading "Stability Considerations"
  qapi: Tidy up examples
  qapi: @foo should be used to reference, not ``foo``
  qapi/block-core: Clean up after removal of dirty bitmap @status
  qapi: Fix up references to long gone error classes
  qapi: Fix misspelled references
  qga/qapi-schema: Fix a misspelled reference
  qga/qapi-schema: Tidy up documentation of guest-fsfreeze-status

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-04-28 23:34:54 +01:00
Markus Armbruster
e2e9e567f0 docs/devel/qapi-code-gen: Describe some doc markup pitfalls
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230427095346.1238913-1-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
2023-04-28 11:48:34 +02:00
Markus Armbruster
c110102898 qapi: Fix bullet list markup in documentation
Peter Maydell's commit 100cc4fe0f explains:

    rST insists on a blank line before and after a bulleted list [...]
    Add some extra blank lines in the doc comments so they're
    acceptable rST input.

It missed one in qapi/trace.json.

Paolo Bonzini later added another instance in qapi/stats.json,
providing further, if unintended, evidence for his quip that rST is
the Perl of ASCII-based markups.

Both are parsed as ordinary paragraph, resulting in garbled output.

John Snow missed the need for a blank line when converting
docs/devel/qapi-code-gen.txt to rST.

Add the blank lines we need to get the bullet lists recognized as
such.

Kevin Wolf and Lukas Straub added two more, but indented.  Sphinx
recognizes them as (indented) bullet lists.  The indentation looks
slightly off.

Insert a blank line and delete the extra indentation.

Fixes: 100cc4fe0f (qapi: Add blank lines before bulleted lists)
Fixes: 467ef823d8 (qmp: add filtering of statistics by target vCPU)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230425064223.820979-10-armbru@redhat.com>
[Fix of docs/devel/qapi-code-gen.rst squashed, commit message adjusted]
2023-04-28 11:48:34 +02:00
Markus Armbruster
f1a787b5f4 qapi: @foo should be used to reference, not `foo`
Documentation suggests @foo is merely shorthand for ``foo``.  It's
not, it carries additional meaning: it's a reference to a QAPI schema
name.

Reword the documentation to spell that out.

Fix up the few ``foo`` that should be @foo.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230425064223.820979-7-armbru@redhat.com>
2023-04-28 11:48:34 +02:00
Alexander Bulekov
9c86c97f12 async: Add an optional reentrancy guard to the BH API
Devices can pass their MemoryReentrancyGuard (from their DeviceState),
when creating new BHes. Then, the async API will toggle the guard
before/after calling the BH call-back. This prevents bh->mmio reentrancy
issues.

Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-Id: <20230427211013.2994127-3-alxndr@bu.edu>
[thuth: Fix "line over 90 characters" checkpatch.pl error]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-04-28 11:31:07 +02:00