Commit graph

77143 commits

Author SHA1 Message Date
Philippe Mathieu-Daudé 1521735c2a hw/nvram/mac_nvram: Convert debug printf()s to trace events
Convert NVR_DPRINTF() to trace events and remove ifdef'ry.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200524165126.13920-1-f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:29:36 +10:00
Philippe Mathieu-Daudé a1cf0c7ce5 hw/pci-bridge/dec: Remove dead debug code
Remove debug code never used since added in commit e1c6bbabee.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200525033910.26166-1-f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:29:36 +10:00
Greg Kurz e606a55801 target/ppc: Don't update radix PTE R/C bits with gdbstub
gdbstub shouldn't silently change guest visible state when doing address
translation. Since the R/C bits can only be updated when handling a MMU
fault, let's reuse the cause_excp flag and rename it to guest_visible.
While here drop a not very useful comment.

This was found while reading the code. I could verify that this affects
both powernv and pseries, but I failed to observe any actual bug.

Fixes: d04ea940c5 "target/ppc: Add support for Radix partition-scoped translation"
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <158941063899.240484.2778628492106387793.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:29:36 +10:00
Greg Kurz 31efae9958 target/ppc: Fix arguments to ppc_radix64_partition_scoped_xlate()
The last two arguments have the bool type. Also, we shouldn't raise an
exception when using gdbstub.

This was found while reading the code. Since it only affects the powernv
machine, I didn't dig further to find an actual bug.

Fixes: d04ea940c5 "target/ppc: Add support for Radix partition-scoped translation"
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <158941063281.240484.9114539141307005992.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:29:36 +10:00
Greg Kurz b577031cf2 target/ppc: Add missing braces in ppc_radix64_partition_scoped_xlate()
As per CODING_STYLE.

Fixes: d04ea940c5 "target/ppc: Add support for Radix partition-scoped translation"
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <158941062665.240484.2663106458734800894.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:29:36 +10:00
Greg Kurz 7caee782e9 target/ppc: Don't initialize some local variables in ppc_radix64_xlate()
It is the job of the ppc_radix64_get_fully_qualified_addr() function
which is called at the beginning of ppc_radix64_xlate() to set both
lpid *and* pid. It doesn't buy us anything to initialize them first.

Worse, a bug in ppc_radix64_get_fully_qualified_addr(), eg. failing to
set either lpid or pid, would be undetectable by static analysis tools
like coverity.

Some recent versions of gcc (eg. gcc-9.3.1-2.fc30) may still think
that lpid or pid is used uninitialized though, so this also adds
default cases in the switch statements to make it clear this cannot
happen.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <158941062048.240484.9693581559252337111.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:29:36 +10:00
Greg Kurz 1830422611 target/ppc: Pass const pointer to ppc_radix64_get_fully_qualified_addr()
This doesn't require write access to the CPU registers.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <158941061434.240484.10700096396035994133.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:29:36 +10:00
Greg Kurz 6fc009603c target/ppc: Pass const pointer to ppc_radix64_get_prot_amr()
This doesn't require write access to the CPU structure.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <158941060817.240484.14621015211317485106.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:29:36 +10:00
Leonardo Bras 0911a60c76 ppc/spapr: Add hotremovable flag on DIMM LMBs on drmem_v2
On reboot, all memory that was previously added using object_add and
device_add is placed in this DIMM area.

The new SPAPR_LMB_FLAGS_HOTREMOVABLE flag helps Linux to put this memory in
the correct memory zone, so no unmovable allocations are made there,
allowing the object to be easily hot-removed by device_del and
object_del.

This new flag was accepted in Power Architecture documentation.

Signed-off-by: Leonardo Bras <leobras.c@gmail.com>
Reviewed-by: Bharata B Rao <bharata@linux.ibm.com>
Message-Id: <20200511200201.58537-1-leobras.c@gmail.com>
[dwg: Fixed syntax error spotted by Cédric Le Goater]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:29:36 +10:00
Nicholas Piggin 3c89b8d6ac target/ppc: Add support for scv and rfscv instructions
POWER9 adds scv and rfscv instructions and the system call vectored
interrupt. Linux does not support this instruction yet but it has
been tested with a modified kernel that runs on real hardware.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20200507115328.789175-1-npiggin@gmail.com>
[dwg: Corrected an overlong line]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:29:24 +10:00
Greg Kurz ececb880d6 target/ppc: Untabify excp_helper.c
Some tabs crept in with a recent change.

Fixes: 6dc6b55791 "target/ppc: Improve syscall exception logging"
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <158886788307.1560068.14096740175576278978.stgit@bahia.lan>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:27:29 +10:00
Cédric Le Goater 0bbf14a095 ppc/spapr: add a POWER10 CPU model
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200507073855.2485680-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:27:29 +10:00
Nicholas Piggin fe837714f3 ppc/pnv: Fix NMI system reset SRR1 value
Commit a77fed5bd926 ("ppc/pnv: Add support for NMI interface") got the
SRR1 setting wrong for sresets that hit outside of power-save states.

Fix this, better documenting the source for the bit definitions.

Fixes: 01b552b05b ("ppc/pnv: Add support for NMI interface")
Cc: Cédric Le Goater <clg@kaod.org>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20200507114824.788942-1-npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[dwg: Fixed up some tab indentation]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-05-27 15:27:25 +10:00
Peter Maydell ddc760832f - fix build with musl libc
- fix potential deadlock of QEMU main event loop (cannot be hit with linux
   client)
 - revert 9pfs reply truncation (LP 1877688)
 - xen backend waits for client to free space on the reply ring instead of
   truncating or disconnecting
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Merge remote-tracking branch 'remotes/gkurz/tags/9p-next-2020-05-26' into staging

- fix build with musl libc
- fix potential deadlock of QEMU main event loop (cannot be hit with linux
  client)
- revert 9pfs reply truncation (LP 1877688)
- xen backend waits for client to free space on the reply ring instead of
  truncating or disconnecting

# gpg: Signature made Tue 26 May 2020 10:36:23 BST
# gpg:                using RSA key B4828BAF943140CEF2A3491071D4D5E5822F73D6
# gpg: Good signature from "Greg Kurz <groug@kaod.org>" [full]
# gpg:                 aka "Gregory Kurz <gregory.kurz@free.fr>" [full]
# gpg:                 aka "[jpeg image of size 3330]" [full]
# Primary key fingerprint: B482 8BAF 9431 40CE F2A3  4910 71D4 D5E5 822F 73D6

* remotes/gkurz/tags/9p-next-2020-05-26:
  xen/9pfs: increase max ring order to 9
  xen/9pfs: yield when there isn't enough room on the ring
  Revert "9p: init_in_iov_from_pdu can truncate the size"
  9p: Lock directory streams with a CoMutex
  9pfs: include linux/limits.h for XATTR_SIZE_MAX

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-26 14:05:53 +01:00
Peter Maydell 8f72c75cfc audio: add JACK client audiodev.
audio: bugfixes and cleanups.
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Merge remote-tracking branch 'remotes/kraxel/tags/audio-20200526-pull-request' into staging

audio: add JACK client audiodev.
audio: bugfixes and cleanups.

# gpg: Signature made Tue 26 May 2020 08:56:21 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/audio-20200526-pull-request:
  hw/mips/mips_fulong2e: Remove unused 'audio/audio.h' include
  audio: Let capture_callback handler use const buffer argument
  audio: Let audio_sample_to_uint64() use const samples argument
  audio: fix wavcapture segfault
  audio/mixeng: fix clang 10+ warning
  audio/jack: add JACK client audiodev
  hw/audio/gus: Use AUDIO_HOST_ENDIANNESS definition from 'audio/audio.h'
  es1370: check total frame count against current frame

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-26 10:59:01 +01:00
Philippe Mathieu-Daudé b3b8a1fea6 hw/mips/mips_fulong2e: Remove unused 'audio/audio.h' include
The Fuloong machine never had to use "audio/audio.h", remove it.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Huacai Chen <chenhc@lemote.com>
Message-id: 20200515084209.9419-1-f4bug@amsat.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-26 08:46:14 +02:00
Philippe Mathieu-Daudé 57a878ed4f audio: Let capture_callback handler use const buffer argument
The buffer is the captured input to pass to backends.
As we should not modify it, mark the argument const.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200505132603.8575-3-f4bug@amsat.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-26 08:29:39 +02:00
Philippe Mathieu-Daudé e709d2ac47 audio: Let audio_sample_to_uint64() use const samples argument
The samples are the input to convert to u64. As we should
not modify them, mark the argument const.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200505132603.8575-2-f4bug@amsat.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-26 08:29:30 +02:00
Bruce Rogers cbaf25d1f5 audio: fix wavcapture segfault
Commit 571a8c522e caused the HMP wavcapture command to segfault when
processing audio data in audio_pcm_sw_write(), where a NULL
sw->hw->pcm_ops is dereferenced. This fix checks that the pointer is
valid before dereferincing it. A similar fix is also made in the
parallel function audio_pcm_sw_read().

Fixes: 571a8c522e (audio: split ctl_* functions into enable_* and
volume_*)
Signed-off-by: Bruce Rogers <brogers@suse.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200521172931.121903-1-brogers@suse.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-26 07:55:23 +02:00
Volker Rümelin 9c61fcc89a audio/mixeng: fix clang 10+ warning
The code in CONV_NATURAL_FLOAT() and CLIP_NATURAL_FLOAT()
seems to use the constant 2^31-0.5 to convert float to integer
and back. But the float type lacks the required precision and
the constant used for the conversion is 2^31. This is equiva-
lent to a [-1.f, 1.f] <-> [INT32_MIN, INT32_MAX + 1] mapping.

This patch explicitly writes down the used constant. The
compiler generated code doesn't change.

The constant 2^31 has an exact float representation and the
clang 10 compiler stops complaining about an implicit int to
float conversion with a changed value.

A few notes:
- The conversion of 1.f to INT32_MAX + 1 doesn't overflow. The
  type of the destination variable is int64_t.
- At a later stage one of the clip_* functions in
  audio/mixeng_template.h limits INT32_MAX + 1 to the integer
  range.
- The clip_natural_float_* functions in audio/mixeng.c convert
  INT32_MAX and INT32_MAX + 1 to 1.f.

Buglink: https://bugs.launchpad.net/bugs/1878627
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-id: 20200523201712.23908-1-vr_qemu@t-online.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-26 07:46:51 +02:00
Stefano Stabellini 84af75577c xen/9pfs: increase max ring order to 9
The max order allowed by the protocol is 9. Increase the max order
supported by QEMU to 9 to increase performance.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20200521192627.15259-3-sstabellini@kernel.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
2020-05-25 11:45:40 +02:00
Stefano Stabellini a4c4d46272 xen/9pfs: yield when there isn't enough room on the ring
Instead of truncating replies, which is problematic, wait until the
client reads more data and frees bytes on the reply ring.

Do that by calling qemu_coroutine_yield(). The corresponding
qemu_coroutine_enter_if_inactive() is called from xen_9pfs_bh upon
receiving the next notification from the client.

We need to be careful to avoid races in case xen_9pfs_bh and the
coroutine are both active at the same time. In xen_9pfs_bh, wait until
either the critical section is over (ring->co == NULL) or until the
coroutine becomes inactive (qemu_coroutine_yield() was called) before
continuing. Then, simply wake up the coroutine if it is inactive.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20200521192627.15259-2-sstabellini@kernel.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
2020-05-25 11:45:39 +02:00
Stefano Stabellini cf45183b71 Revert "9p: init_in_iov_from_pdu can truncate the size"
This reverts commit 16724a1730.
It causes https://bugs.launchpad.net/bugs/1877688.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20200521192627.15259-1-sstabellini@kernel.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
2020-05-25 11:45:38 +02:00
Geoffrey McRae 2e44570321 audio/jack: add JACK client audiodev
This commit adds a new audiodev backend to allow QEMU to use JACK as
both an audio sink and source.

Signed-off-by: Geoffrey McRae <geoff@hostfission.com>
Message-Id: <20200512101603.E3DB73A038E@moya.office.hostfission.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-25 11:30:03 +02:00
Philippe Mathieu-Daudé 2f097e1964 hw/audio/gus: Use AUDIO_HOST_ENDIANNESS definition from 'audio/audio.h'
Use the generic AUDIO_HOST_ENDIANNESS definition instead
of a custom one.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200505100750.27332-1-f4bug@amsat.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-25 11:30:03 +02:00
Prasad J Pandit 369ff955a8 es1370: check total frame count against current frame
A guest user may set channel frame count via es1370_write()
such that, in es1370_transfer_audio(), total frame count
'size' is lesser than the number of frames that are processed
'cnt'.

    int cnt = d->frame_cnt >> 16;
    int size = d->frame_cnt & 0xffff;

if (size < cnt), it results in incorrect calculations leading
to OOB access issue(s). Add check to avoid it.

Reported-by: Ren Ding <rding@gatech.edu>
Reported-by: Hanqing Zhao <hanqing@gatech.edu>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-id: 20200514200608.1744203-1-ppandit@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-05-25 11:30:03 +02:00
Greg Kurz ed463454ef 9p: Lock directory streams with a CoMutex
Locking was introduced in QEMU 2.7 to address the deprecation of
readdir_r(3) in glibc 2.24. It turns out that the frontend code is
the worst place to handle a critical section with a pthread mutex:
the code runs in a coroutine on behalf of the QEMU mainloop and then
yields control, waiting for the fsdev backend to process the request
in a worker thread. If the client resends another readdir request for
the same fid before the previous one finally unlocked the mutex, we're
deadlocked.

This never bit us because the linux client serializes readdir requests
for the same fid, but it is quite easy to demonstrate with a custom
client.

A good solution could be to narrow the critical section in the worker
thread code and to return a copy of the dirent to the frontend, but
this causes quite some changes in both 9p.c and codir.c. So, instead
of that, in order for people to easily backport the fix to older QEMU
versions, let's simply use a CoMutex since all the users for this
sit in coroutines.

Fixes: 7cde47d4a8 ("9p: add locking to V9fsDir")
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <158981894794.109297.3530035833368944254.stgit@bahia.lan>
Signed-off-by: Greg Kurz <groug@kaod.org>
2020-05-25 10:38:03 +02:00
Dan Robertson 03556ea920 9pfs: include linux/limits.h for XATTR_SIZE_MAX
linux/limits.h should be included for the XATTR_SIZE_MAX definition used
by v9fs_xattrcreate.

Fixes: 3b79ef2cf4 ("9pfs: limit xattr size in xattrcreate")
Signed-off-by: Dan Robertson <dan@dlrobertson.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20200515203015.7090-2-dan@dlrobertson.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
2020-05-25 10:38:03 +02:00
Peter Maydell fea8f3ed73 - Remove unused timer in CFI01 flash,
- Clean up code documentation,
 - Silent a long-standing Coverity warning (2016-07-15).
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/philmd-gitlab/tags/pflash-next-20200522' into staging

- Remove unused timer in CFI01 flash,
- Clean up code documentation,
- Silent a long-standing Coverity warning (2016-07-15).

# gpg: Signature made Fri 22 May 2020 18:43:03 BST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd-gitlab/tags/pflash-next-20200522:
  hw/block/pflash: Check return value of blk_pwrite()
  hw/block/pflash_cfi01: Rename 'reset_flash' label as 'mode_read_array'
  hw/block/pflash_cfi01: Document use of non-CFI compliant command '0x00'
  hw/block/pflash_cfi01: Removed an unused timer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-22 18:54:47 +01:00
Mansour Ahmadi 1857b9db49 hw/block/pflash: Check return value of blk_pwrite()
When updating the PFLASH file contents, we should check for a
possible failure of blk_pwrite(). Similar to commit 3a688294e.

Reported-by: Coverity (CID 1357678 CHECKED_RETURN)
Signed-off-by: Mansour Ahmadi <mansourweb@gmail.com>
Message-Id: <20200408003552.58095-1-mansourweb@gmail.com>
[PMD: Add missing "qemu/error-report.h" include and TODO comment]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-05-22 19:38:14 +02:00
Philippe Mathieu-Daudé 3072182dc1 hw/block/pflash_cfi01: Rename 'reset_flash' label as 'mode_read_array'
Rename the 'reset_flash' as 'mode_read_array' to make explicit we
do not reset the device, we simply set its internal state machine
in the READ_ARRAY mode. We do not reset the status register error
bits, as a device reset would do.

Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190716221555.11145-5-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-05-22 18:44:36 +02:00
Philippe Mathieu-Daudé aba53a12bd hw/block/pflash_cfi01: Document use of non-CFI compliant command '0x00'
The command 0x00 is used by this model since its origin (commit
05ee37ebf6). In this commit the command is described with a
amusing '/* ??? */' comment, probably meaning 'FIXME'.

        switch (cmd) {
        case 0x00: /* ??? */
            ...

This comment survived 12 years because the 0x00 value is indeed
not specified by the CFI open standard (as of this commit).

The 'cmd' field is transfered during migration. To keep the
migration feature working with older QEMU version, we have to
take a lot of care with migrated field. We figured out it is
too late to remove a non-specified value from this model
(this would make migration review very complex). It is however
not too late to improve the documentation.

Add few comments to remember this is a special value related
to QEMU, and we won't find information about it on the CFI
spec.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190716221555.11145-3-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-05-22 18:44:36 +02:00
Philippe Mathieu-Daudé d23048c05c hw/block/pflash_cfi01: Removed an unused timer
The 'CFI02' NOR flash was introduced in commit 29133e9a0f, with
timing modelled. One year later, the CFI01 model was introduced
(commit 05ee37ebf6) based on the CFI02 model. As noted in the
header, "It does not support timings". 12 years later, we never
had to model the device timings. Time to remove the unused timer,
we can still add it back if required.

Suggested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Wei Yang <richardw.yang@linux.intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
[Laszlo Ersek: Regression tested EDK2 OVMF IA32X64, ArmVirtQemu Aarch64
https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg04373.html]
Message-Id: <20190716221555.11145-2-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-05-22 18:44:36 +02:00
Peter Maydell 1cc9c62e42 qemu-openbios queue
-----BEGIN PGP SIGNATURE-----
 
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 ZS1heWxhbmRAaWxhbmRlLmNvLnVrAAoJEFvCxW+uDzIfSfAH/2J41A1R2VV2nbrg
 5IUle4NLpgTPvRRTIivLVo2glNgCGtU23ZH2DWgLKZ6QpFLF6kdq8IyzppJRezem
 +kHhnJ2/07/eiGAZTd1mIUOf7Id8ffqLmy6pHGzTmSog54ZZk1e/KajAUzQYBltI
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 9Lgfv+4=
 =R17e
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mcayland/tags/qemu-openbios-20200521' into staging

qemu-openbios queue

# gpg: Signature made Thu 21 May 2020 21:02:44 BST
# 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>" [full]
# Primary key fingerprint: CC62 1AB9 8E82 200D 915C  C9C4 5BC2 C56F AE0F 321F

* remotes/mcayland/tags/qemu-openbios-20200521:
  Update OpenBIOS images to 4704d9eb built from submodule.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-22 12:11:48 +01:00
Peter Maydell d19f1ab0de target-arm queue:
* tests/acceptance: Add a test for the canon-a1100 machine
  * docs/system: Document some of the Arm development boards
  * linux-user: make BKPT insn cause SIGTRAP, not be a syscall
  * target/arm: Remove unused GEN_NEON_INTEGER_OP macro
  * fsl-imx25, fsl-imx31, fsl-imx6, fsl-imx6ul, fsl-imx7: implement watchdog
  * hw/arm: Use qemu_log_mask() instead of hw_error() in various places
  * ARM: PL061: Introduce N_GPIOS
  * target/arm: Improve clear_vec_high() usage
  * target/arm: Allow user-mode code to write CPSR.E via MSR
  * linux-user/arm: Reset CPSR_E when entering a signal handler
  * linux-user/arm/signal.c: Drop TARGET_CONFIG_CPU_32
 -----BEGIN PGP SIGNATURE-----
 
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 =bh3x
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200521-1' into staging

target-arm queue:
 * tests/acceptance: Add a test for the canon-a1100 machine
 * docs/system: Document some of the Arm development boards
 * linux-user: make BKPT insn cause SIGTRAP, not be a syscall
 * target/arm: Remove unused GEN_NEON_INTEGER_OP macro
 * fsl-imx25, fsl-imx31, fsl-imx6, fsl-imx6ul, fsl-imx7: implement watchdog
 * hw/arm: Use qemu_log_mask() instead of hw_error() in various places
 * ARM: PL061: Introduce N_GPIOS
 * target/arm: Improve clear_vec_high() usage
 * target/arm: Allow user-mode code to write CPSR.E via MSR
 * linux-user/arm: Reset CPSR_E when entering a signal handler
 * linux-user/arm/signal.c: Drop TARGET_CONFIG_CPU_32

# gpg: Signature made Thu 21 May 2020 22:05:48 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20200521-1: (29 commits)
  linux-user/arm/signal.c: Drop TARGET_CONFIG_CPU_32
  linux-user/arm: Reset CPSR_E when entering a signal handler
  target/arm: Allow user-mode code to write CPSR.E via MSR
  target/arm: Use clear_vec_high more effectively
  target/arm: Use tcg_gen_gvec_mov for clear_vec_high
  ARM: PL061: Introduce N_GPIOS
  hw/timer/exynos4210_mct: Replace hw_error() by qemu_log_mask()
  hw/char/xilinx_uartlite: Replace hw_error() by qemu_log_mask()
  hw/arm/pxa2xx: Replace hw_error() by qemu_log_mask()
  hw/arm/integratorcp: Replace hw_error() by qemu_log_mask()
  hw/arm/fsl-imx7: Connect watchdog interrupts
  hw/arm/fsl-imx7: Instantiate various unimplemented devices
  hw/arm/fsl-imx6ul: Connect watchdog interrupts
  hw/arm/fsl-imx6: Connect watchdog interrupts
  hw/arm/fsl-imx31: Wire up watchdog
  hw/arm/fsl-imx25: Wire up watchdog
  hw/watchdog: Implement full i.MX watchdog support
  hw: Move i.MX watchdog driver to hw/watchdog
  target/arm: Remove unused GEN_NEON_INTEGER_OP macro
  linux-user/arm: Fix identification of syscall numbers
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:06:56 +01:00
Peter Maydell fafe722927 linux-user/arm/signal.c: Drop TARGET_CONFIG_CPU_32
The Arm signal-handling code has some parts ifdeffed with a
TARGET_CONFIG_CPU_32, which is always defined. This is a leftover
from when this code's structure was based on the Linux kernel
signal handling code, where it was intended to support 26-bit
Arm CPUs. The kernel dropped its CONFIG_CPU_32 in kernel commit
4da8b8208eded0ba21e3 in 2009.

QEMU has never had 26-bit CPU support and is unlikely to ever
add it; we certainly aren't going to support 26-bit Linux
binaries via linux-user mode. The ifdef is just unhelpful
noise, so remove it entirely.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200518143014.20689-1-peter.maydell@linaro.org
2020-05-21 22:05:27 +01:00
Amanieu d'Antras 45e2813964 linux-user/arm: Reset CPSR_E when entering a signal handler
This fixes signal handlers running with the wrong endianness if the
interrupted code used SETEND to dynamically switch endianness.

Signed-off-by: Amanieu d'Antras <amanieu@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200511131117.2486486-1-amanieu@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00
Peter Maydell 268b1b3dfb target/arm: Allow user-mode code to write CPSR.E via MSR
Using the MSR instruction to write to CPSR.E is deprecated, but it is
required to work from any mode including unprivileged code.  We were
incorrectly forbidding usermode code from writing it because
CPSR_USER did not include the CPSR_E bit.

We use CPSR_USER in only three places:
 * as the mask of what to allow userspace MSR to write to CPSR
 * when deciding what bits a linux-user signal-return should be
   able to write from the sigcontext structure
 * in target_user_copy_regs() when we set up the initial
   registers for the linux-user process

In the first two cases not being able to update CPSR.E is a bug, and
in the third case it doesn't matter because CPSR.E is always 0 there.
So we can fix both bugs by adding CPSR_E to CPSR_USER.

Because the cpsr_write() in restore_sigcontext() is now changing
a CPSR bit which is cached in hflags, we need to add an
arm_rebuild_hflags() call there; the callsite in
target_user_copy_regs() was already rebuilding hflags for other
reasons.

(The recommended way to change CPSR.E is to use the 'SETEND'
instruction, which we do correctly allow from usermode code.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200518142801.20503-1-peter.maydell@linaro.org
2020-05-21 22:05:27 +01:00
Richard Henderson e1f778596e target/arm: Use clear_vec_high more effectively
Do not explicitly store zero to the NEON high part
when we can pass !is_q to clear_vec_high.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200519212453.28494-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00
Richard Henderson 5c27392dd0 target/arm: Use tcg_gen_gvec_mov for clear_vec_high
The 8-byte store for the end a !is_q operation can be
merged with the other stores.  Use a no-op vector move
to trigger the expand_clr portion of tcg_gen_gvec_mov.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200519212453.28494-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00
Geert Uytterhoeven faf58e5369 ARM: PL061: Introduce N_GPIOS
Add a definition for the number of GPIO lines controlled by a PL061
instance, and use it instead of the hardcoded magic value 8.

Suggested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200519085143.1376-1-geert+renesas@glider.be
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00
Philippe Mathieu-Daudé a50fe66846 hw/timer/exynos4210_mct: Replace hw_error() by qemu_log_mask()
hw_error() calls exit(). This a bit overkill when we can log
the accesses as unimplemented or guest error.

When fuzzing the devices, we don't want the whole process to
exit. Replace some hw_error() calls by qemu_log_mask().

Per the datasheet "Exynos 4412 RISC Microprocessor Rev 1.00"
Chapter 25 "Multi Core Timer (MCT)" figure 1 and table 4,
the default value on the APB bus is 0.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20200518140309.5220-5-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00
Philippe Mathieu-Daudé 492edf3e30 hw/char/xilinx_uartlite: Replace hw_error() by qemu_log_mask()
hw_error() calls exit(). This a bit overkill when we can log
the accesses as unimplemented or guest error.

When fuzzing the devices, we don't want the whole process to
exit. Replace some hw_error() calls by qemu_log_mask().

Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20200518140309.5220-4-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00
Philippe Mathieu-Daudé 5a0001ec7e hw/arm/pxa2xx: Replace hw_error() by qemu_log_mask()
hw_error() calls exit(). This a bit overkill when we can log
the accesses as unimplemented or guest error.

When fuzzing the devices, we don't want the whole process to
exit. Replace some hw_error() calls by qemu_log_mask().

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20200518140309.5220-3-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00
Philippe Mathieu-Daudé 9904625f1b hw/arm/integratorcp: Replace hw_error() by qemu_log_mask()
hw_error() calls exit(). This a bit overkill when we can log
the accesses as unimplemented or guest error.

When fuzzing the devices, we don't want the whole process to
exit. Replace some hw_error() calls by qemu_log_mask().

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20200518140309.5220-2-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00
Guenter Roeck c4947e64ef hw/arm/fsl-imx7: Connect watchdog interrupts
i.MX7 supports watchdog pretimeout interupts. With this commit,
the watchdog in mcimx7d-sabre is fully operational, including
pretimeout support.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20200517162135.110364-9-linux@roeck-us.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00
Guenter Roeck 72465e1eba hw/arm/fsl-imx7: Instantiate various unimplemented devices
Instantiating PWM, CAN, CAAM, and OCOTP devices is necessary to avoid
crashes when booting mainline Linux.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20200517162135.110364-8-linux@roeck-us.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00
Guenter Roeck 5671e960e2 hw/arm/fsl-imx6ul: Connect watchdog interrupts
With this commit, the watchdog on mcimx6ul-evk is fully operational,
including pretimeout support.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20200517162135.110364-7-linux@roeck-us.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00
Guenter Roeck bd8045a704 hw/arm/fsl-imx6: Connect watchdog interrupts
With this patch applied, the watchdog in the sabrelite emulation
is fully operational, including pretimeout support.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20200517162135.110364-6-linux@roeck-us.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00
Guenter Roeck b9e521dda3 hw/arm/fsl-imx31: Wire up watchdog
With this patch, the watchdog on i.MX31 emulations is fully operational.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20200517162135.110364-5-linux@roeck-us.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-05-21 22:05:27 +01:00