Commit graph

15673 commits

Author SHA1 Message Date
Xiaoyao Li 2a1019f209 i386/pc: Drop pc_machine_kvm_type()
pc_machine_kvm_type() was introduced by commit e21be724ea ("i386/xen:
add pc_machine_kvm_type to initialize XEN_EMULATE mode") to do Xen
specific initialization by utilizing kvm_type method.

commit eeedfe6c63 ("hw/xen: Simplify emulated Xen platform init")
moves the Xen specific initialization to pc_basic_device_init().

There is no need to keep the PC specific kvm_type() implementation
anymore. So we'll fallback to kvm_arch_get_default_type(), which
simply returns 0.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Isaku Yamahata <isaku.yamahata@intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: David Woodhouse <dwmw@amazon.co.uk>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20231007065819.27498-1-xiaoyao.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-02-16 13:56:08 +01:00
Peter Maydell 2a5ee4e18d hw/misc/mps2-scc: Make changes needed for AN536 FPGA image
The MPS2 SCC device is broadly the same for all FPGA images, but has
minor differences in the behaviour of the CFG registers depending on
the image. In many cases we don't really care about the functionality
controlled by these registers and a reads-as-written or similar
behaviour is sufficient for the moment.

For the AN536 the required behaviour is:

 * A_CFG0 has CPU reset and halt bits
    - implement as reads-as-written for the moment
 * A_CFG1 has flash or ATCM address 0 remap handling
    - QEMU doesn't model this; implement as reads-as-written
 * A_CFG2 has QSPI select (like AN524)
    - implemented (no behaviour, as with AN524)
 * A_CFG3 is MCC_MSB_ADDR "additional MCC addressing bits"
    - QEMU doesn't care about these, so use the existing
      RAZ behaviour for convenience
 * A_CFG4 is board rev (like all other images)
    - no change needed
 * A_CFG5 is ACLK frq in hz (like AN524)
    - implemented as reads-as-written, as for other boards
 * A_CFG6 is core 0 vector table base address
    - implemented as reads-as-written for the moment
 * A_CFG7 is core 1 vector table base address
    - implemented as reads-as-written for the moment

Make the changes necessary for this; leave TODO comments where
appropriate to indicate where we might want to come back and
implement things like CPU reset.

The other aspects of the device specific to this FPGA image (like the
values of the board ID and similar registers) will be set via the
device's qdev properties.

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: 20240206132931.38376-8-peter.maydell@linaro.org
2024-02-15 14:32:38 +00:00
Luc Michel 15f6c16e6e hw/arm/smmuv3: add support for stage 1 access fault
An access fault is raised when the Access Flag is not set in the
looked-up PTE and the AFFD field is not set in the corresponding context
descriptor. This was already implemented for stage 2. Implement it for
stage 1 as well.

Signed-off-by: Luc Michel <luc.michel@amd.com>
Reviewed-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Mostafa Saleh <smostafa@google.com>
Message-id: 20240213082211.3330400-1-luc.michel@amd.com
[PMM: tweaked comment text]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-02-15 13:38:11 +00:00
Peter Maydell 1ec896fe7c hw/arm/virt: Wire up non-secure EL2 virtual timer IRQ
Armv8.1+ CPUs have the Virtual Host Extension (VHE) which adds a
non-secure EL2 virtual timer.  We implemented the timer itself in the
CPU model, but never wired up its IRQ line to the GIC.

Wire up the IRQ line (this is always safe whether the CPU has the
interrupt or not, since it always creates the outbound IRQ line).
Report it to the guest via dtb and ACPI if the CPU has the feature.

The DTB binding is documented in the kernel's
Documentation/devicetree/bindings/timer/arm\,arch_timer.yaml
and the ACPI table entries are documented in the ACPI specification
version 6.3 or later.

Because the IRQ line ACPI binding is new in 6.3, we need to bump the
FADT table rev to show that we might be using 6.3 features.

Note that exposing this IRQ in the DTB will trigger a bug in EDK2
versions prior to edk2-stable202311, for users who use the virt board
with 'virtualization=on' to enable EL2 emulation and are booting an
EDK2 guest BIOS, if that EDK2 has assertions enabled.  The effect is
that EDK2 will assert on bootup:

 ASSERT [ArmTimerDxe] /home/kraxel/projects/qemu/roms/edk2/ArmVirtPkg/Library/ArmVirtTimerFdtClientLib/ArmVirtTimerFdtClientLib.c(72): PropSize == 36 || PropSize == 48

If you see that assertion you should do one of:
 * update your EDK2 binaries to edk2-stable202311 or newer
 * use the 'virt-8.2' versioned machine type
 * not use 'virtualization=on'

(The versions shipped with QEMU itself have the fix.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Message-id: 20240122143537.233498-3-peter.maydell@linaro.org
2024-02-15 11:31:52 +00:00
Peter Maydell 5767815218 virtio,pc,pci: features, cleanups, fixes
vhost-user-snd support
 x2APIC mode with TCG support
 CXL update to r3.1
 
 fixes, cleanups all over the place.
 
 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: features, cleanups, fixes

vhost-user-snd support
x2APIC mode with TCG support
CXL update to r3.1

fixes, cleanups all over the place.

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

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# gpg: Signature made Wed 14 Feb 2024 11:18:13 GMT
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
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# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
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* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (60 commits)
  MAINTAINERS: Switch to my Enfabrica email
  virtio-gpu-rutabaga.c: override resource_destroy method
  virtio-gpu.c: add resource_destroy class method
  hw/display/virtio-gpu.c: use reset_bh class method
  hw/smbios: Fix port connector option validation
  hw/smbios: Fix OEM strings table option validation
  virtio-gpu: Correct virgl_renderer_resource_get_info() error check
  hw/cxl: Standardize all references on CXL r3.1 and minor updates
  hw/cxl: Update mailbox status registers.
  hw/cxl: Update RAS Capability Definitions for version 3.
  hw/cxl: Update link register definitions.
  hw/cxl: Update HDM Decoder capability to version 3
  tests/acpi: Update DSDT.cxl to reflect change _STA return value.
  hw/i386: Fix _STA return value for ACPI0017
  tests/acpi: Allow update of DSDT.cxl
  hw/mem/cxl_type3: Fix potential divide by zero reported by coverity
  hw/cxl: Pass NULL for a NULL MemoryRegionOps
  hw/cxl: Pass CXLComponentState to cache_mem_ops
  hw/cxl/device: read from register values in mdev_reg_read()
  hw/cxl/mbox: Remove dead code
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-02-14 15:45:52 +00:00
Peter Maydell 708322660e Character device backend patches for 2024-02-12
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Merge tag 'pull-char-2024-02-12-v2' of https://repo.or.cz/qemu/armbru into staging

Character device backend patches for 2024-02-12

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# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
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* tag 'pull-char-2024-02-12-v2' of https://repo.or.cz/qemu/armbru:
  qapi/char: Deprecate backend type "memory"
  qapi/char: Make backend types properly conditional
  tests/unit/test-char: Fix qemu_socket(), make_udp_socket() check
  chardev/parallel: Don't close stdin on inappropriate device

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-02-14 13:00:19 +00:00
Peter Maydell 2766e3668c tcg: Increase width of temp_subindex
tcg/arm: Fix goto_tb for large translation blocks
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Merge tag 'pull-tcg-20240213' of https://gitlab.com/rth7680/qemu into staging

tcg: Increase width of temp_subindex
tcg/arm: Fix goto_tb for large translation blocks

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# gpg: Signature made Wed 14 Feb 2024 01:22:29 GMT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
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* tag 'pull-tcg-20240213' of https://gitlab.com/rth7680/qemu:
  tcg/arm: Fix goto_tb for large translation blocks
  tcg: Increase width of temp_subindex

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-02-14 13:00:11 +00:00
Manos Pitsidianakis 330399bd89 virtio-gpu.c: add resource_destroy class method
When destroying/unrefing resources, devices such as virtio-gpu-rutabaga
need to do their own bookkeeping (free rutabaga resources that are
associated with the virtio_gpu_simple_resource).

This commit adds a class method so that virtio-gpu-rutabaga can override
it in the next commit.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Message-Id: <b0a86630c4d601f3a269fd7e08cfefc13bd4e219.1706626470.git.manos.pitsidianakis@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:33 -05:00
Jonathan Cameron 8700ee15de hw/cxl: Standardize all references on CXL r3.1 and minor updates
Previously not all references mentioned any spec version at all.
Given r3.1 is the current specification available for evaluation at
www.computeexpresslink.org update references to refer to that.
Hopefully this won't become a never ending job.

A few structure definitions have been updated to add new fields.
Defaults of 0 and read only are valid choices for these new DVSEC
registers so go with that for now.

There are additional error codes and some of the 'questions' in
the comments are resolved now.

Update documentation reference to point to the CXL r3.1 specification
with naming closer to what is on the cover.

For cases where there are structure version numbers, add defines
so they can be found next to the register definitions.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20240126121636.24611-6-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:33 -05:00
Jonathan Cameron 202f651469 hw/cxl: Update mailbox status registers.
Whilst the reported version was 1 so there should be no changes,
a couple of fields (where the value 0 was valid) were not
defined. Make those explicit and update references to be based
on CXL r3.1.

Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20240126121636.24611-5-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Jonathan Cameron a185ff05fe hw/cxl: Update RAS Capability Definitions for version 3.
Part of bringing all of CXL emulation inline with CXL r3.1.
No functional changes.

Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20240126121636.24611-4-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Jonathan Cameron 40ecac10c0 hw/cxl: Update link register definitions.
Not actually implemented, but we need to reserve more space for
the larger version of the structure in CXL r3.1.

Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20240126121636.24611-3-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Jonathan Cameron ae243dbfc4 hw/cxl: Update HDM Decoder capability to version 3
Part of standardizing the QEMU code on CXL r3.1.
No fuctional changes as everything added is optional and
it is set as not implemented.

Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20240126121636.24611-2-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Hyeonggon Yoo f7509f462c hw/cxl/device: read from register values in mdev_reg_read()
In the current mdev_reg_read() implementation, it consistently returns
that the Media Status is Ready (01b). This was fine until commit
25a52959f9 ("hw/cxl: Add support for device sanitation") because the
media was presumed to be ready.

However, as per the CXL 3.0 spec "8.2.9.8.5.1 Sanitize (Opcode 4400h)",
during sanitation, the Media State should be set to Disabled (11b). The
mentioned commit correctly sets it to Disabled, but mdev_reg_read()
still returns Media Status as Ready.

To address this, update mdev_reg_read() to read register values instead
of returning dummy values.

Note that __toggle_media() managed to not only write something
that no one read, it did it to the wrong register storage and
so changed the reported mailbox size which was definitely not
the intent. That gets fixed as a side effect of allocating
separate state storage for this register.

Fixes: commit 25a52959f9 ("hw/cxl: Add support for device sanitation")
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20240126120132.24248-7-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Bernhard Beschow 1d1afd9ff7 hw/char/parallel-isa: Implement relocation and enabling/disabling for TYPE_ISA_PARALLEL
The real SuperI/O chips emulated by QEMU allow for relocating and enabling or
disabling their SuperI/O functions via software. So far this is not implemented.
Prepare for that by adding isa_parallel_set_{enabled,iobase}.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-10-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Bernhard Beschow 7812dbc54c hw/char/serial-isa: Implement relocation and enabling/disabling for TYPE_ISA_SERIAL
The real SuperI/O chips emulated by QEMU allow for relocating and enabling or
disabling their SuperI/O functions via software. So far this is not implemented.
Prepare for that by adding isa_serial_set_{enabled,iobase}.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-9-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Bernhard Beschow 8c4d239139 hw/block/fdc-isa: Implement relocation and enabling/disabling for TYPE_ISA_FDC
The real SuperI/O chips emulated by QEMU allow for relocating and enabling or
disabling their SuperI/O functions via software. So far this is not implemented.
Prepare for that by adding isa_fdc_set_{enabled,iobase}.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-8-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Bernhard Beschow f165cdf102 exec/ioport: Add portio_list_set_enabled()
Some SuperI/O devices such as the VIA south bridges or the PC87312 controller
allow to enable or disable their SuperI/O functions. Add a convenience function
for implementing this in the VIA south bridges.

The naming of the functions is inspired by its memory_region_set_enabled()
pendant.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-7-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Bernhard Beschow ad2b652341 exec/ioport: Add portio_list_set_address()
Some SuperI/O devices such as the VIA south bridges or the PC87312 controller
are able to relocate their SuperI/O functions. Add a convenience function for
implementing this in the VIA south bridges.

This convenience function relies on previous simplifications in exec/ioport
which avoids some duplicate synchronization of I/O port base addresses. The
naming of the function is inspired by its memory_region_set_address() pendant.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-6-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Bernhard Beschow 4edee342f8 exec/ioport: Resolve redundant .base attribute in struct MemoryRegionPortio
portio_list_add_1() creates a MemoryRegionPortioList instance which holds a
MemoryRegion `mr` and an array of MemoryRegionPortio elements named `ports`.
Each element in the array gets assigned the same value for its .base attribute.
The same value also ends up as the .addr attribute of `mr` due to the
memory_region_add_subregion() call. This means that all .base attributes are
the same as `mr.addr`.

The only usages of MemoryRegionPortio::base were in portio_read() and
portio_write(). Both functions get above MemoryRegionPortioList as their
opaque parameter. In both cases find_portio() can only return one of the
MemoryRegionPortio elements of the `ports` array. Due to above observation any
element will have the same .base value equal to `mr.addr` which is also
accessible.

Hence, `mrpio->mr.addr` is equivalent to `mrp->base` and
MemoryRegionPortio::base is redundant and can be removed.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-5-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Bernhard Beschow ee3d1f1b46 hw/char/parallel: Move portio_list from ParallelState to ISAParallelState
ParallelState::portio_list isn't used inside ParallelState context but only
inside ISAParallelState context, so move it there.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <20240114123911.4877-4-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Bernhard Beschow c2e6d7d8e7 hw/i386/x86: Fix PIC interrupt handling if APIC is globally disabled
QEMU populates the apic_state attribute of x86 CPUs if supported by real
hardware or if SMP is active. When handling interrupts, it just checks whether
apic_state is populated to route the interrupt to the PIC or to the APIC.
However, chapter 10.4.3 of [1] requires that:

  When IA32_APIC_BASE[11] is 0, the processor is functionally equivalent to an
  IA-32 processor without an on-chip APIC.

This means that when apic_state is populated, QEMU needs to check for the
MSR_IA32_APICBASE_ENABLE flag in addition. Implement this which fixes some
real-world BIOSes.

[1] Intel 64 and IA-32 Architectures Software Developer's Manual, Vol. 3A:
    System Programming Guide, Part 1

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240106132546.21248-3-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Bui Quang Minh 774204cf98 apic, i386/tcg: add x2apic transitions
This commit adds support for x2APIC transitions when writing to
MSR_IA32_APICBASE register and finally adds CPUID_EXT_X2APIC to
TCG_EXT_FEATURES.

The set_base in APICCommonClass now returns an integer to indicate error in
execution. apic_set_base return -1 on invalid APIC state transition,
accelerator can use this to raise appropriate exception.

Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Message-Id: <20240111154404.5333-4-minhquangbui99@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Bui Quang Minh b5ee0468e9 apic: add support for x2APIC mode
This commit extends the APIC ID to 32-bit long and remove the 255 max APIC
ID limit in userspace APIC. The array that manages local APICs is now
dynamically allocated based on the max APIC ID of created x86 machine.
Also, new x2APIC IPI destination determination scheme, self IPI and x2APIC
mode register access are supported.

Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Message-Id: <20240111154404.5333-3-minhquangbui99@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Bui Quang Minh b2101358e5 i386/tcg: implement x2APIC registers MSR access
This commit creates apic_register_read/write which are used by both
apic_mem_read/write for MMIO access and apic_msr_read/write for MSR access.

The apic_msr_read/write returns -1 on error, accelerator can use this to
raise the appropriate exception.

Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Message-Id: <20240111154404.5333-2-minhquangbui99@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Leo Yan bad38726e9 hw/virtio: derive vhost-user-input from vhost-user-base
This patch derives vhost-user-input from vhost-user-base class, so make
the input stub as a simpler boilerplate wrapper.

With the refactoring, vhost-user-input adds the property 'chardev', this
leads to conflict with the vhost-user-input-pci adds the same property.
To resolve the error, remove the duplicate property from
vhost-user-input-pci.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Message-Id: <20231120043721.50555-5-leo.yan@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-12-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
Manos Pitsidianakis 4ae0fc18a1 hw/virtio: add vhost-user-snd and vhost-user-snd-pci devices
Tested with rust-vmm vhost-user-sound daemon:

    RUST_LOG=trace cargo run --bin vhost-user-sound -- --socket /tmp/snd.sock --backend null

Invocation:

    qemu-system-x86_64  \
            -qmp unix:./qmp-sock,server,wait=off  \
            -m 4096 \
            -numa node,memdev=mem \
            -object memory-backend-file,id=mem,size=4G,mem-path=/dev/shm,share=on \
            -D qemu.log \
            -d guest_errors,trace:\*snd\*,trace:\*sound\*,trace:\*vhost\* \
            -chardev socket,id=vsnd,path=/tmp/snd.sock \
            -device vhost-user-snd-pci,chardev=vsnd,id=snd \
            /path/to/disk

[AJB: imported from 54ae1cdd15.patch]

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Message-Id: <20240104210945.1223134-7-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:03 -05:00
Alex Bennée a50616b50d hw/virtio: derive vhost-user-i2c from vhost-user-base
Now we can take advantage of the new base class and make
vhost-user-i2c a much simpler boilerplate wrapper. Also as this
doesn't require any target specific hacks we only need to build the
stubs once.

Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-6-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:01:49 -05:00
Alex Bennée 5ba587580d hw/virtio: derive vhost-user-gpio from vhost-user-base
Now the new base class supports config handling we can take advantage
and make vhost-user-gpio a much simpler boilerplate wrapper. Also as
this doesn't require any target specific hacks we only need to build
the stubs once.

Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-5-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:01:44 -05:00
Alex Bennée 233412bf7a hw/virtio: derive vhost-user-rng from vhost-user-base
Now we can take advantage of our new base class and make
vhost-user-rng a much simpler boilerplate wrapper. Also as this
doesn't require any target specific hacks we only need to build the
stubs once.

Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-4-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:01:42 -05:00
Alex Bennée 6275989647 virtio: split into vhost-user-base and vhost-user-device
Lets keep a cleaner split between the base class and the derived
vhost-user-device which we can use for generic vhost-user stubs. This
includes an update to introduce the vq_size property so the number of
entries in a virtq can be defined.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-2-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:01:39 -05:00
Markus Armbruster a58c439a2d chardev/parallel: Don't close stdin on inappropriate device
The __linux__ version of qemu_chr_open_pp_fd() tries to claim the
parport device with a PPCLAIM ioctl().  On success, it stores the file
descriptor in the chardev object, and returns success.  On failure, it
closes the file descriptor, and returns failure.

chardev_new() then passes the Chardev to object_unref().  This duly
calls char_parallel_finalize(), which closes the file descriptor
stored in the chardev object.  Since qemu_chr_open_pp_fd() didn't
store it, it's still zero, so this closes standard input.  Ooopsie.

To demonstate, add a unit test.  With the bug above unfixed, running
this test closes standard input.  char_hotswap_test() happens to run
next.  It opens a socket, duly gets file descriptor 0, and since it
tests for success with > 0 instead of >= 0, it fails.

The new unit test needs to be conditional exactly like the chardev it
tests.  Since the condition is rather complicated, steal the solution
from the serial chardev: define HAVE_CHARDEV_PARALLEL in qemu/osdep.h.
This also permits simplifying chardev/meson.build a bit.

The bug fix is easy enough: store the file descriptor, and leave
closing it to char_parallel_finalize().

The next commit will fix char_hotswap_test()'s test for success.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240203080228.2766159-2-armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Test fixed up for BSDs, indentation fixed up, commit message improved]
2024-02-14 07:44:38 +01:00
Mark Cave-Ayland 442de89a93 esp.c: keep track of the DRQ state during DMA
Currently the DRQ IRQ is updated every time DMA data is sent/received which
is both inefficient and causes excessive logging of the DRQ state. Add a
new drq_state bool that only updates the DRQ IRQ if its state changes.

This commit adds the new drq_state bool to the migration state: since the
version number has already been increased earlier in the series, there is
no need to repeat it again here. The DRQ IRQ is (currently) only used for
PDMA transfers which already have a migration break in this series so
there are no problems setting its value post-load.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-87-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-02-13 19:37:28 +00:00
Mark Cave-Ayland 6dec7c0d9f esp.c: rename irq_data IRQ to drq_irq
The IRQ represented by irq_data is actually the DRQ (DMA request) line so rename
it accordingly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-86-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-02-13 19:37:28 +00:00
Mark Cave-Ayland 8200345066 esp.c: remove unneeded ti_cmd field
According to the datasheet the previous ESP command remains in the ESP_CMD
register, which caused a problem when consecutive TI commands were issued as
it becomes impossible for the state machine to know when the first TI
command finishes.

This was the original reason for introducing the ti_cmd field which kept
track of the last written command for this purpose. However closer reading
of the datasheet shows that a TI command that terminates due to a change of
SCSI target phase resets the ESP_CMD register to zero which solves this
problem.

Now that this has been fixed in the previous commit, remove the unneeded
ti_cmd field and access the ESP_CMD register directly instead. Bump the
vmstate_esp version to indicate that the ti_cmd field is no longer included.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-64-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-02-13 19:37:28 +00:00
Mark Cave-Ayland 8dded6de15 esp.c: rename data_in_ready to to data_ready
This field is currently used to handle deferred interrupts for the DATA IN phase
but the code will soon be updated to do the same for the DATA OUT phase.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-58-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-02-13 19:37:28 +00:00
Mark Cave-Ayland b46a43a224 esp.c: remove unused PDMA callback implementation
Note that this is a migration break for the q800 machine because the extra PDMA
information is no longer included.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-57-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-02-13 19:37:28 +00:00
Mark Cave-Ayland 8baa14728b esp.c: move CMD_ICCS command logic to esp_do_dma()
The special logic in write_response_pdma_cb() is now no longer required since
esp_do_dma() can be used as a direct replacement.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-55-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-02-13 19:37:28 +00:00
Mark Cave-Ayland db4d4150ba esp.c: move CMD_SELATNS end of command logic to esp_do_dma() and do_dma_pdma_cb()
The special logic in satn_stop_pdma_cb() is now no longer required since
esp_do_dma() can be used as a direct replacement.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-53-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-02-13 19:37:28 +00:00
Mark Cave-Ayland 3ee9a475a5 esp.c: move CMD_SELATN end of message phase detection to esp_do_dma() and do_dma_pdma_cb()
The special logic in satn_pdma_cb() is now no longer required since esp_do_dma()
can be used as a direct replacement.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-50-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-02-13 19:37:28 +00:00
Mark Cave-Ayland 66fd565733 esp.c: remove s_without_satn_pdma_cb() PDMA callback
This can now be handled by the existing do_dma_pdma_cb() function.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-37-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2024-02-13 19:37:28 +00:00
Richard Henderson c0e688153f tcg: Increase width of temp_subindex
We need values 0-3 for TCG_TYPE_I128 on 32-bit hosts.

Cc: qemu-stable@nongnu.org
Fixes: 43eef72f41 ("tcg: Add temp allocation for TCGv_i128")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2159
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Tested-by: Michael Tokarev <mjt@tls.msk.ru>
2024-02-13 07:42:45 -10:00
Peter Maydell bc2e8b18fb target/hppa: Enhancements and fixes
Some enhancements and fixes for the hppa target.
 
 The major change is, that this patchset adds a new SeaBIOS-hppa firmware
 which is built as 32- and 64-bit firmware.
 The new 64-bit firmware is necessary to fully support 64-bit operating systems
 (HP-UX, Linux, NetBSD,...).
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQS86RI+GtKfB8BJu973ErUQojoPXwUCZcquAQAKCRD3ErUQojoP
 X9pjAQCVsWyuYlGCW2paIGVWKV0vsOpwetUrbhRtFUZGqZxb4AD9FbMsXRcCN/oq
 CotBPY/a8MEzIQcwYl5QbcI5nNW4ygs=
 =RA0B
 -----END PGP SIGNATURE-----

Merge tag 'hppa64-pull-request' of https://github.com/hdeller/qemu-hppa into staging

target/hppa: Enhancements and fixes

Some enhancements and fixes for the hppa target.

The major change is, that this patchset adds a new SeaBIOS-hppa firmware
which is built as 32- and 64-bit firmware.
The new 64-bit firmware is necessary to fully support 64-bit operating systems
(HP-UX, Linux, NetBSD,...).

# -----BEGIN PGP SIGNATURE-----
#
# iHUEABYKAB0WIQS86RI+GtKfB8BJu973ErUQojoPXwUCZcquAQAKCRD3ErUQojoP
# X9pjAQCVsWyuYlGCW2paIGVWKV0vsOpwetUrbhRtFUZGqZxb4AD9FbMsXRcCN/oq
# CotBPY/a8MEzIQcwYl5QbcI5nNW4ygs=
# =RA0B
# -----END PGP SIGNATURE-----
# gpg: Signature made Mon 12 Feb 2024 23:47:13 GMT
# gpg:                using EDDSA key BCE9123E1AD29F07C049BBDEF712B510A23A0F5F
# gpg: Good signature from "Helge Deller <deller@gmx.de>" [unknown]
# gpg:                 aka "Helge Deller <deller@kernel.org>" [unknown]
# 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: 4544 8228 2CD9 10DB EF3D  25F8 3E5F 3D04 A7A2 4603
#      Subkey fingerprint: BCE9 123E 1AD2 9F07 C049  BBDE F712 B510 A23A 0F5F

* tag 'hppa64-pull-request' of https://github.com/hdeller/qemu-hppa:
  hw/hppa/machine: Load 64-bit firmware on 64-bit machines
  target/hppa: Update SeaBIOS-hppa to version 16
  hw/net/tulip: add chip status register values
  target/hppa: PDC_BTLB_INFO uses 32-bit ints
  target/hppa: Allow read-access to PSW with rsm 0,reg instruction
  lasi: Add reset I/O ports for LASI audio and FDC
  target/hppa: Implement do_transaction_failed handler for I/O errors
  lasi: allow access to LAN MAC address registers
  hw/pci-host/astro: Implement Hard Fail and Soft Fail mode
  hw/pci-host/astro: Avoid aborting on access failure
  target/hppa: Add "diag 0x101" for console output support
  disas/hppa: Add disassembly for qemu specific instructions

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-02-13 13:56:46 +00:00
Peter Maydell 61e7a0d27c QAPI patches patches for 2024-02-12
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Merge tag 'pull-qapi-2024-02-12' of https://repo.or.cz/qemu/armbru into staging

QAPI patches patches for 2024-02-12

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# gpg: Signature made Mon 12 Feb 2024 09:12:27 GMT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* tag 'pull-qapi-2024-02-12' of https://repo.or.cz/qemu/armbru:
  MAINTAINERS: Cover qapi/stats.json
  MAINTAINERS: Cover qapi/cxl.json
  qapi/migration: Add missing tls-authz documentation
  qapi: Add missing union tag documentation
  qapi: Move @String out of common.json to discourage reuse
  qapi: Improve documentation of file descriptor socket addresses
  qapi: Plug trivial documentation holes around former simple unions
  qapi/dump: Clean up documentation of DumpGuestMemoryCapability
  qapi/yank: Clean up documentaion of yank
  qga/qapi-schema: Plug trivial documentation holes
  qga/qapi-schema: Clean up documentation of guest-set-vcpus
  qga/qapi-schema: Clean up documentation of guest-set-memory-blocks
  qapi: Require member documentation (with loophole)
  sphinx/qapidoc: Drop code to generate doc for simple union tag
  qapi: Indent tagged doc comment sections properly
  qapi/block-core: Fix BlockLatencyHistogramInfo doc markup
  docs/devel/qapi-code-gen: Tweak doc comment whitespace
  docs/devel/qapi-code-gen: Normalize version refs x.y.0 to just x.y

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-02-13 10:54:59 +00:00
Peter Maydell 5005aed8a7 testing, doc and gdbstub updates:
- add sqlite3 to openSUSE image
   - mark CRIS as deprecated
   - re-enable the TCG plugin tests
   - use select for semihosting
   - implement syscall catching in gdbstub
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Merge tag 'pull-maintainer-updates-090224-1' of https://gitlab.com/stsquad/qemu into staging

testing, doc and gdbstub updates:

  - add sqlite3 to openSUSE image
  - mark CRIS as deprecated
  - re-enable the TCG plugin tests
  - use select for semihosting
  - implement syscall catching in gdbstub

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# gpg: Signature made Fri 09 Feb 2024 17:54:28 GMT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* tag 'pull-maintainer-updates-090224-1' of https://gitlab.com/stsquad/qemu:
  tests/tcg: Add the syscall catchpoint gdbstub test
  gdbstub: Implement catching syscalls
  gdbstub: Add syscall entry/return hooks
  gdbstub: Allow specifying a reason in stop packets
  gdbstub: Expose TARGET_SIGTRAP in a target-agnostic way
  kconfig: use "select" to enable semihosting
  Revert "hw/elf_ops: Ignore loadable segments with zero size"
  configure: run plugin TCG tests again
  docs: mark CRIS support as deprecated
  tests/docker: Add sqlite3 module to openSUSE Leap container

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-02-12 14:14:10 +00:00
Peter Maydell 15dbbeaff3 - LUKS support for detached headers
- Update x86 CPU model docs and script
  - Add missing close of chardev QIOChannel
  - More trace events o nTKS handshake
  - Drop unsafe VNC constants
  - Increase NOFILE limit during startup
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Merge tag 'misc-fixes-pull-request' of https://gitlab.com/berrange/qemu into staging

 - LUKS support for detached headers
 - Update x86 CPU model docs and script
 - Add missing close of chardev QIOChannel
 - More trace events o nTKS handshake
 - Drop unsafe VNC constants
 - Increase NOFILE limit during startup

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# gpg: Signature made Fri 09 Feb 2024 14:04:05 GMT
# gpg:                using RSA key DAF3A6FDB26B62912D0E8E3FBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" [full]
# gpg:                 aka "Daniel P. Berrange <berrange@redhat.com>" [full]
# Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E  8E3F BE86 EBB4 1510 4FDF

* tag 'misc-fixes-pull-request' of https://gitlab.com/berrange/qemu:
  tests: Add case for LUKS volume with detached header
  crypto: Introduce 'detached-header' field in QCryptoBlockInfoLUKS
  block: Support detached LUKS header creation using qemu-img
  block: Support detached LUKS header creation using blockdev-create
  crypto: Modify the qcrypto_block_create to support creation flags
  qapi: Make parameter 'file' optional for BlockdevCreateOptionsLUKS
  crypto: Support LUKS volume with detached header
  io: add trace event when cancelling TLS handshake
  chardev: close QIOChannel before unref'ing
  docs: re-generate x86_64 ABI compatibility CSV
  docs: fix highlighting of CPU ABI header rows
  scripts: drop comment about autogenerated CPU API file
  softmmu: remove obsolete comment about libvirt timeouts
  ui: drop VNC feature _MASK constants
  qemu_init: increase NOFILE soft limit on POSIX
  crypto: Introduce SM4 symmetric cipher algorithm
  meson: sort C warning flags alphabetically

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-02-12 14:13:58 +00:00
Markus Armbruster 8bf69544b5 qapi: Move @String out of common.json to discourage reuse
Use of String is problematic, because it results in awkward interface
documentation.  The previous commit cleaned up one instance.

Move String out of common.json next to its remaining users in net.json
to discourage reuse elsewhere.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240205074709.3613229-15-armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2024-02-12 10:04:32 +01:00
Markus Armbruster 4edb196e20 qapi: Improve documentation of file descriptor socket addresses
SocketAddress branch @fd is documented in enum SocketAddressType,
unlike the other branches.  That's because the branch's type is String
from common.json.

Use a local copy of String, so we can put the documentation in the
usual place.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240205074709.3613229-14-armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2024-02-12 10:04:32 +01:00
Helge Deller 32d26ea407 lasi: Add reset I/O ports for LASI audio and FDC
Linux writes zeroes at bootup into the default ports for LASI audio and
LASI floppy controller to reset those devices.  Allow writing to those
registers to avoid HPMCs.

Signed-off-by: Helge Deller <deller@gmx.de>
2024-02-11 13:20:23 +01:00
Helge Deller f410b688af hw/pci-host/astro: Implement Hard Fail and Soft Fail mode
The Astro/Elroy chip can work in either Hard-Fail or Soft-Fail mode.

Hard fail means the system bus will send an HPMC (=crash) to the
processor, soft fail means the system bus will ignore timeouts of
MMIO-reads or MMIO-writes and return -1ULL.

The HF mode is controlled by a bit in the status register and is usually
programmed by the OS. Return the corresponing values based on the current
value of that bit.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2024-02-11 13:20:23 +01:00