Commit Graph

97775 Commits

Author SHA1 Message Date
Jonathan Cameron
a99fbb003b hw/cxl: Fix memory leak in error paths
Use g_autofree to free the CXLFixedWindow structure if an
error occurs in configuration before we have added to
the list (via g_steal_pointer())

Fix Coverity CID: 1488872

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20220808122051.14822-2-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-08-17 13:08:11 -04:00
Gerd Hoffmann
3824e25db1 x86: disable rng seeding via setup_data
Causes regressions when doing direct kernel boots with OVMF.

At this point in the release cycle the only sensible action
is to just disable this for 7.1 and sort it properly in the
7.2 devel cycle.

Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Eduardo Habkost <eduardo@habkost.net>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>
Cc: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20220817083940.3174933-1-kraxel@redhat.com>
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Eduardo Habkost <eduardo@habkost.net>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>
Cc: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-08-17 07:07:37 -04:00
Alex Bennée
643a943554 hw/virtio: fix vhost_user_read tracepoint
As reads happen in the callback we were never seeing them. We only
really care about the header so move the tracepoint to when the header
is complete.

Fixes: 6ca6d8ee9d (hw/virtio: add vhost_user_[read|write] trace points)
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220728135503.1060062-5-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-08-17 07:07:37 -04:00
Alex Bennée
5a9d5f09b1 hw/virtio: handle un-configured shutdown in virtio-pci
The assert() protecting against leakage is a little aggressive and
causes needless crashes if a device is shutdown without having been
configured. In this case no descriptors are lost because none have
been assigned.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220728135503.1060062-4-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-08-17 07:07:37 -04:00
Alex Bennée
f20400ed0d hw/virtio: gracefully handle unset vhost_dev vdev
I've noticed asserts firing because we query the status of vdev after
a vhost connection is closed down. Rather than faulting on the NULL
indirect just quietly reply false.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220728135503.1060062-3-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-08-17 07:07:37 -04:00
Stefan Hajnoczi
9a4b6a63ae virtio-scsi: fix race in virtio_scsi_dataplane_start()
As soon as virtio_scsi_data_plane_start() attaches host notifiers the
IOThread may start virtqueue processing. There is a race between
IOThread virtqueue processing and virtio_scsi_data_plane_start() because
it only assigns s->dataplane_started after attaching host notifiers.

When a virtqueue handler function in the IOThread calls
virtio_scsi_defer_to_dataplane() it may see !s->dataplane_started and
attempt to start dataplane even though we're already in the IOThread:

  #0  0x00007f67b360857c __pthread_kill_implementation (libc.so.6 + 0xa257c)
  #1  0x00007f67b35bbd56 raise (libc.so.6 + 0x55d56)
  #2  0x00007f67b358e833 abort (libc.so.6 + 0x28833)
  #3  0x00007f67b358e75b __assert_fail_base.cold (libc.so.6 + 0x2875b)
  #4  0x00007f67b35b4cd6 __assert_fail (libc.so.6 + 0x4ecd6)
  #5  0x000055ca87fd411b memory_region_transaction_commit (qemu-kvm + 0x67511b)
  #6  0x000055ca87e17811 virtio_pci_ioeventfd_assign (qemu-kvm + 0x4b8811)
  #7  0x000055ca87e14836 virtio_bus_set_host_notifier (qemu-kvm + 0x4b5836)
  #8  0x000055ca87f8e14e virtio_scsi_set_host_notifier (qemu-kvm + 0x62f14e)
  #9  0x000055ca87f8dd62 virtio_scsi_dataplane_start (qemu-kvm + 0x62ed62)
  #10 0x000055ca87e14610 virtio_bus_start_ioeventfd (qemu-kvm + 0x4b5610)
  #11 0x000055ca87f8c29a virtio_scsi_handle_ctrl (qemu-kvm + 0x62d29a)
  #12 0x000055ca87fa5902 virtio_queue_host_notifier_read (qemu-kvm + 0x646902)
  #13 0x000055ca882c099e aio_dispatch_handler (qemu-kvm + 0x96199e)
  #14 0x000055ca882c1761 aio_poll (qemu-kvm + 0x962761)
  #15 0x000055ca880e1052 iothread_run (qemu-kvm + 0x782052)
  #16 0x000055ca882c562a qemu_thread_start (qemu-kvm + 0x96662a)

This patch assigns s->dataplane_started before attaching host notifiers
so that virtqueue handler functions that run in the IOThread before
virtio_scsi_data_plane_start() returns correctly identify that dataplane
does not need to be started. This fix is taken from the virtio-blk
dataplane code and it's worth adding a comment in virtio-blk as well to
explain why it works.

Note that s->dataplane_started does not need the AioContext lock because
it is set before attaching host notifiers and cleared after detaching
host notifiers. In other words, the IOThread always sees the value true
and the main loop thread does not modify it while the IOThread is
active.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2099541
Reported-by: Qing Wang <qinwang@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220808162134.240405-1-stefanha@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-08-17 07:07:37 -04:00
Richard Henderson
c7208a6e0d Update version for v7.1.0-rc3 release
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-16 20:45:19 -05:00
Richard Henderson
d293d70a8d * Fix a possible endless loop in USB XHCI code
* Minor fixes for the new readconfig test
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Merge tag 'pull-request-2022-08-16' of https://gitlab.com/thuth/qemu into staging

* Fix a possible endless loop in USB XHCI code
* Minor fixes for the new readconfig test

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# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [undefined]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [undefined]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
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* tag 'pull-request-2022-08-16' of https://gitlab.com/thuth/qemu:
  hw/usb/hcd-xhci: Fix unbounded loop in xhci_ring_chain_length() (CVE-2020-14394)
  tests/qtest: misc tweaks to readconfig

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-16 10:58:57 -05:00
Richard Henderson
09a78762a2 A few small fixes:
- properly un-parent OBJECT(cpu) when closing -user thread
   - add missing timeout to aspeed tests
   - reduce raciness of login: prompt handling for aspeed tests
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Merge tag 'pull-for-7.1-fixes-160822-1' of https://github.com/stsquad/qemu into staging

A few small fixes:

  - properly un-parent OBJECT(cpu) when closing -user thread
  - add missing timeout to aspeed tests
  - reduce raciness of login: prompt handling for aspeed tests

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* tag 'pull-for-7.1-fixes-160822-1' of https://github.com/stsquad/qemu:
  tests/avocado: apply a band aid to aspeed-evb login
  tests/avocado: add timeout to the aspeed tests
  linux-user: un-parent OBJECT(cpu) when closing thread

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-16 09:01:50 -05:00
Thomas Huth
effaf5a240 hw/usb/hcd-xhci: Fix unbounded loop in xhci_ring_chain_length() (CVE-2020-14394)
The loop condition in xhci_ring_chain_length() is under control of
the guest, and additionally the code does not check for failed DMA
transfers (e.g. if reaching the end of the RAM), so the loop there
could run for a very long time or even forever. Fix it by checking
the return value of dma_memory_read() and by introducing a maximum
loop length.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/646
Message-Id: <20220804131300.96368-1-thuth@redhat.com>
Reviewed-by: Mauro Matteo Cascella <mcascell@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-16 11:37:19 +02:00
Daniel P. Berrangé
9c23d71934 tests/qtest: misc tweaks to readconfig
The property name parameter is ignored when visiting a top
level type, but the obvious typo should be fixed to avoid
confusion. A few indentation issues were tidied up. We
can break out of the loop when finding the RNG device.
Finally, close the temp FD immediately when no longer
needed.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220809093854.168438-1-berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-16 11:36:21 +02:00
Alex Bennée
65711f9a87 tests/avocado: apply a band aid to aspeed-evb login
This is really a limitation of the underlying console code which
doesn't allow us to detect the login: and following "#" prompts
because it reads input line wise. By adding a small delay we ensure
that the login prompt has appeared so we don't accidentally spaff the
shell commands to a confused getty in the guest.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Acked-by: John Snow <jsnow@redhat.com>
Message-Id: <20220811151413.3350684-8-alex.bennee@linaro.org>
2022-08-16 09:57:12 +01:00
Alex Bennée
b1ceae2f5b tests/avocado: add timeout to the aspeed tests
On some systems the test can hang. At least defining a timeout stops
it from hanging forever.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220811151413.3350684-7-alex.bennee@linaro.org>
2022-08-16 09:57:12 +01:00
Alex Bennée
52f0c16076 linux-user: un-parent OBJECT(cpu) when closing thread
While forcing the CPU to unrealize by hand does trigger the clean-up
code we never fully free resources because refcount never reaches
zero. This is because QOM automatically added objects without an
explicit parent to /unattached/, incrementing the refcount.

Instead of manually triggering unrealization just unparent the object
and let the device machinery deal with that for us.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/866
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220811151413.3350684-2-alex.bennee@linaro.org>
2022-08-16 09:57:07 +01:00
Richard Henderson
d102b8162a Loongarch docs update
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Merge tag 'pull-la-20220814' of https://gitlab.com/rth7680/qemu into staging

Loongarch docs update

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# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* tag 'pull-la-20220814' of https://gitlab.com/rth7680/qemu:
  docs/system/loongarch: Update the LoongArch document

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-14 08:48:11 -05:00
Xiaojuan Yang
1f90ce64fc docs/system/loongarch: Update the LoongArch document
1. Add some information about how to boot the LoongArch virt
machine by uefi bios and linux kernel and how to access the
source code or binary file.
2. Move the explanation of LoongArch system emulation in the
target/loongarch/README to docs/system/loongarch/loongson3.rst

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20220812091957.3338126-1-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-13 04:45:03 -07:00
Richard Henderson
93f3dd6048 target-arm queue:
* Don't report Statistical Profiling Extension in ID registers
  * virt ACPI tables: Present the GICR structure properly for GICv4
  * Fix some typos in documentation
  * tests/unit: fix a -Wformat-truncation warning
  * cutils: Add missing dyld(3) include on macOS
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Merge tag 'pull-target-arm-20220812' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * Don't report Statistical Profiling Extension in ID registers
 * virt ACPI tables: Present the GICR structure properly for GICv4
 * Fix some typos in documentation
 * tests/unit: fix a -Wformat-truncation warning
 * cutils: Add missing dyld(3) include on macOS

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# gpg: Signature made Fri 12 Aug 2022 04:43:58 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]

* tag 'pull-target-arm-20220812' of https://git.linaro.org/people/pmaydell/qemu-arm:
  cutils: Add missing dyld(3) include on macOS
  hw/arm/virt-acpi-build: Present the GICR structure properly for GICv4
  tests/unit: fix a -Wformat-truncation warning
  Fix some typos in documentation (most of them found by codespell)
  target/arm: Don't report Statistical Profiling Extension in ID registers

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-12 10:46:43 -07:00
Richard Henderson
6add03bec0 Pull request linux-user 20220812
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Merge tag 'linux-user-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu into staging

Pull request linux-user 20220812

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# gpg: Signature made Fri 12 Aug 2022 03:33:41 AM PDT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [undefined]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [undefined]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@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: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* tag 'linux-user-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu:
  linux-user/aarch64: Reset target data on MADV_DONTNEED

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-12 08:13:23 -07:00
Philippe Mathieu-Daudé
4311682ea8 cutils: Add missing dyld(3) include on macOS
Commit 06680b15b4 moved qemu_*_exec_dir() to cutils but forgot
to move the macOS dyld(3) include, resulting in the following
error (when building with Homebrew GCC on macOS Monterey 12.4):

  [313/1197] Compiling C object libqemuutil.a.p/util_cutils.c.o
  FAILED: libqemuutil.a.p/util_cutils.c.o
  ../../util/cutils.c:1039:13: error: implicit declaration of function '_NSGetExecutablePath' [-Werror=implicit-function-declaration]
   1039 |         if (_NSGetExecutablePath(fpath, &len) == 0) {
        |             ^~~~~~~~~~~~~~~~~~~~
  ../../util/cutils.c:1039:13: error: nested extern declaration of '_NSGetExecutablePath' [-Werror=nested-externs]

Fix by moving the include line to cutils.

Fixes: 06680b15b4 ("include: move qemu_*_exec_dir() to cutils")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20220809222046.30812-1-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-08-12 11:33:52 +01:00
Zenghui Yu
e1f045780b hw/arm/virt-acpi-build: Present the GICR structure properly for GICv4
With the introduction of the new TCG GICv4, build_madt() is badly broken
as we do not present any GIC Redistributor structure in MADT for GICv4
guests, so that they have no idea about where the Redistributor
register frames are. This fixes a Linux guest crash at boot time with
ACPI enabled and '-machine gic-version=4'.

While at it, let's convert the remaining hard coded gic_version into
enumeration VIRT_GIC_VERSION_2 for consistency.

Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Message-id: 20220812022018.1069-1-yuzenghui@huawei.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-08-12 11:25:18 +01:00
Marc-André Lureau
6a54ac2a97 tests/unit: fix a -Wformat-truncation warning
../tests/test-qobject-input-visitor.c: In function ‘test_visitor_in_list’:
../tests/test-qobject-input-visitor.c:454:49: warning: ‘%d’ directive output may be truncated writing between 1 and 10 bytes into a region of size 6 [-Wformat-truncation=]
  454 |         snprintf(string, sizeof(string), "string%d", i);
      |                                                 ^~
../tests/test-qobject-input-visitor.c:454:42: note: directive argument in the range [0, 2147483606]
  454 |         snprintf(string, sizeof(string), "string%d", i);
      |                                          ^~~~~~~~~~
../tests/test-qobject-input-visitor.c:454:9: note: ‘snprintf’ output between 8 and 17 bytes into a destination of size 12
  454 |         snprintf(string, sizeof(string), "string%d", i);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Rather than trying to be clever, since this is called 3 times during
tests, let's simply use g_strdup_printf().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20220810121513.1356081-1-marcandre.lureau@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: fixed commit message typos]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-08-12 11:22:13 +01:00
Stefan Weil
120f765e03 Fix some typos in documentation (most of them found by codespell)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Hongren (Zenithal) Zheng <i@zenithal.me>
Message-id: 20220812075642.1200578-1-sw@weilnetz.de
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-08-12 11:20:42 +01:00
Peter Maydell
2daf518dd1 target/arm: Don't report Statistical Profiling Extension in ID registers
The newly added neoverse-n1 CPU has ID register values which indicate
the presence of the Statistical Profiling Extension, because the real
hardware has this feature.  QEMU's TCG emulation does not yet
implement SPE, though (not even as a minimal stub implementation), so
guests will crash if they try to use it because the SPE system
registers don't exist.

Force ID_AA64DFR0_EL1.PMSVer to 0 in CPU realize for TCG, so that
we don't advertise to the guest a feature that doesn't exist.

(We could alternatively do this by editing the value that
aarch64_neoverse_n1_initfn() sets for this ID register, but
suppressing the field in realize means we won't re-introduce this bug
when we add other CPUs that have SPE in hardware, such as the
Neoverse-V1.)

An example of a non-booting guest is current mainline Linux (5.19),
when booting in EL2 on the virt board (ie with -machine
virtualization=on).

Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Message-id: 20220811131127.947334-1-peter.maydell@linaro.org
2022-08-12 11:17:35 +01:00
Vitaly Buka
dbbf89751b linux-user/aarch64: Reset target data on MADV_DONTNEED
aarch64 stores MTE tags in target_date, and they should be reset by
MADV_DONTNEED.

Signed-off-by: Vitaly Buka <vitalybuka@google.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220711220028.2467290-1-vitalybuka@google.com>
[lv: fix code style issues]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-08-11 11:34:17 +02:00
Richard Henderson
a6b1c53e79 Pull request linux-user 20220810
fix compat with glibc >= 2.36 sys/mount.h
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Merge tag 'linux-user-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu into staging

Pull request linux-user 20220810

fix compat with glibc >= 2.36 sys/mount.h

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# gpg: Signature made Wed 10 Aug 2022 09:50:18 AM PDT
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# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [undefined]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [undefined]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@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: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* tag 'linux-user-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu:
  linux-user: fix compat with glibc >= 2.36 sys/mount.h

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-10 10:26:57 -07:00
Daniel P. Berrangé
3cd3df2a95 linux-user: fix compat with glibc >= 2.36 sys/mount.h
The latest glibc 2.36 has extended sys/mount.h so that it
defines the FSCONFIG_* enum constants. These are historically
defined in linux/mount.h, and thus if you include both headers
the compiler complains:

In file included from /usr/include/linux/fs.h:19,
                 from ../linux-user/syscall.c:98:
/usr/include/linux/mount.h:95:6: error: redeclaration of 'enum fsconfig_command'
   95 | enum fsconfig_command {
      |      ^~~~~~~~~~~~~~~~
In file included from ../linux-user/syscall.c:31:
/usr/include/sys/mount.h:189:6: note: originally defined here
  189 | enum fsconfig_command
      |      ^~~~~~~~~~~~~~~~
/usr/include/linux/mount.h:96:9: error: redeclaration of enumerator 'FSCONFIG_SET_FLAG'
   96 |         FSCONFIG_SET_FLAG       = 0,    /* Set parameter, supplying no value */
      |         ^~~~~~~~~~~~~~~~~
/usr/include/sys/mount.h:191:3: note: previous definition of 'FSCONFIG_SET_FLAG' with type 'enum fsconfig_command'
  191 |   FSCONFIG_SET_FLAG       = 0,    /* Set parameter, supplying no value */
      |   ^~~~~~~~~~~~~~~~~
...snip...

QEMU doesn't include linux/mount.h, but it does use
linux/fs.h and thus gets linux/mount.h indirectly.

glibc acknowledges this problem but does not appear to
be intending to fix it in the forseeable future, simply
documenting it as a known incompatibility with no
workaround:

  https://sourceware.org/glibc/wiki/Release/2.36#Usage_of_.3Clinux.2Fmount.h.3E_and_.3Csys.2Fmount.h.3E
  https://sourceware.org/glibc/wiki/Synchronizing_Headers

To address this requires either removing use of sys/mount.h
or linux/fs.h, despite QEMU needing declarations from
both.

This patch removes linux/fs.h, meaning we have to define
various FS_IOC constants that are now unavailable.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Message-Id: <20220802164134.1851910-1-berrange@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-08-10 18:37:46 +02:00
Richard Henderson
61b6e67171 Update version for v7.1.0-rc2 release
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-09 19:25:15 -07:00
Richard Henderson
0342cb34a4 Pull request trivial branch 20220809
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Merge tag 'trivial-branch-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu into staging

Pull request trivial branch 20220809

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# gpg: Signature made Tue 09 Aug 2022 09:55:36 AM PDT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [undefined]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [undefined]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@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: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* tag 'trivial-branch-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu:
  xlnx_dp: drop unsupported AUXCommand in xlnx_dp_aux_set_command
  contrib/vhost-user-blk: Clean up deallocation of VuVirtqElement

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-09 12:17:21 -07:00
Richard Henderson
4ffa12e080 target-arm queue:
* icount: Take iothread lock when running QEMU timers
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Merge tag 'pull-target-arm-20220809' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * icount: Take iothread lock when running QEMU timers

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# gpg: Signature made Tue 09 Aug 2022 05:12:29 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]

* tag 'pull-target-arm-20220809' of https://git.linaro.org/people/pmaydell/qemu-arm:
  icount: Take iothread lock when running QEMU timers

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-09 09:43:42 -07:00
Richard Henderson
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Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging

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# gpg: Signature made Tue 09 Aug 2022 02:02:56 AM PDT
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# gpg: WARNING: This key is not certified with a trusted signature!
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# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* tag 'net-pull-request' of https://github.com/jasowang/qemu:
  hw/net/rocker: Avoid undefined shifts with more than 31 ports

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-09 07:44:29 -07:00
Peter Maydell
c7f26ded6d icount: Take iothread lock when running QEMU timers
The function icount_prepare_for_run() is called with the iothread
unlocked, but it can call icount_notify_aio_contexts() which will
run qemu timer handlers. Those are supposed to be run only with
the iothread lock held, so take the lock while we do that.

Since icount mode runs everything on a single thread anyway,
not holding the lock is likely mostly not going to introduce
races, but it can cause us to trip over assertions that we
do hold the lock, such as the one reported in issue 1130.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1130
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Message-id: 20220801164527.3134765-1-peter.maydell@linaro.org
2022-08-09 10:55:14 +01:00
Peter Maydell
7cf745dd9c hw/net/rocker: Avoid undefined shifts with more than 31 ports
In rocker_port_phys_link_status() and rocker_port_phys_enable_read()
we construct a 64-bit value with one bit per front-panel port.
However we accidentally do the shift as 32-bit arithmetic, which
means that if there are more than 31 front-panel ports this is
undefined behaviour.

Fix the problem by ensuring we use 64-bit arithmetic for the whole
calculation. (We won't ever shift off the 64-bit value because
ROCKER_FP_PORTS_MAX is 62.)

Resolves: Coverity CID 1487121, 1487160
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2022-08-09 17:02:18 +08:00
Richard Henderson
ca5f3d4df1 loongarch: fix emulation of fcsr register
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Merge tag 'pull-la-20220808' of https://gitlab.com/rth7680/qemu into staging

loongarch: fix emulation of fcsr register

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# gpg: Signature made Mon 08 Aug 2022 07:49:41 PM PDT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* tag 'pull-la-20220808' of https://gitlab.com/rth7680/qemu:
  target/loongarch: Remove cpu_fcsr0

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-08 19:51:12 -07:00
Richard Henderson
10dcb08b03 target/loongarch: Remove cpu_fcsr0
All of the fpu operations are defined with TCG_CALL_NO_WG, but they
all modify FCSR0.  The most efficient way to fix this is to remove
cpu_fcsr0, and instead use explicit load and store operations for the
two instructions that manipulate that value.

Acked-by: Qi Hu <huqi@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Reported-by: Feiyang Chen <chenfeiyang@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-08 19:42:53 -07:00
Richard Henderson
7b06148df8 MIPS/SPARC patches queue
- target/mips: Handle lock_user failure in UHI_plog semihosting (Peter Maydell)
 - hw/mips/malta: Turn off x86 specific features of PIIX4 PM (Igor Mammedov)
 - hw/misc/grlib_ahb_apb_pnp: Support 8 and 16 bit accesses (Peter Maydell)
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Merge tag 'mips-20220809' of https://github.com/philmd/qemu into staging

MIPS/SPARC patches queue

- target/mips: Handle lock_user failure in UHI_plog semihosting (Peter Maydell)
- hw/mips/malta: Turn off x86 specific features of PIIX4 PM (Igor Mammedov)
- hw/misc/grlib_ahb_apb_pnp: Support 8 and 16 bit accesses (Peter Maydell)

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# gpg: Signature made Mon 08 Aug 2022 03:29:23 PM PDT
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]

* tag 'mips-20220809' of https://github.com/philmd/qemu:
  hw/misc/grlib_ahb_apb_pnp: Support 8 and 16 bit accesses
  hw/mips/malta: turn off x86 specific features of PIIX4_PM
  target/mips: Handle lock_user() failure in UHI_plog semihosting call

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-08 17:59:27 -07:00
Peter Maydell
09d12c81ec hw/misc/grlib_ahb_apb_pnp: Support 8 and 16 bit accesses
In real hardware, the APB and AHB PNP data tables can be accessed
with byte and halfword reads as well as word reads.  Our
implementation currently only handles word reads.  Add support for
the 8 and 16 bit accesses.  Note that we only need to handle aligned
accesses -- unaligned accesses should continue to trap, as happens on
hardware.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1132
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Frederic Konrad <fkonrad@amd.com>
Message-Id: <20220802131925.3380923-1-peter.maydell@linaro.org>
Tested-by: Tomasz Martyniak <gitlab.com/tom4r>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-08-08 23:43:11 +02:00
Igor Mammedov
bd64c210ce hw/mips/malta: turn off x86 specific features of PIIX4_PM
QEMU crashes trying to save VMSTATE when only MIPS target are compiled in
  $ qemu-system-mips -monitor stdio
  (qemu) migrate "exec:gzip -c > STATEFILE.gz"
  Segmentation fault (core dumped)

It happens due to PIIX4_PM trying to parse hotplug vmstate structures
which are valid only for x86 and not for MIPS (as it requires ACPI
tables support which is not existent for ithe later)

Issue was probably exposed by trying to cleanup/compile out unused
ACPI bits from MIPS target (but forgetting about migration bits).

Disable compiled out features using compat properties as the least
risky way to deal with issue.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/995
Reviewed-by: Ani Sinha <ani@anisinha.ca>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20220728115034.1327988-1-imammedo@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-08-08 23:23:11 +02:00
Peter Maydell
8809baf4e4 target/mips: Handle lock_user() failure in UHI_plog semihosting call
Coverity notes that we forgot to check the error return from
lock_user() in one place in the handling of the UHI_plog semihosting
call.  Add the missing error handling.

report_fault() is rather brutal in that it will call abort(), but
this is the same error-handling used in the rest of this file.

Resolves: Coverity CID 1490684
Fixes: ea4210600d ("target/mips: Avoid qemu_semihosting_log_out for UHI_plog")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220719191737.384744-1-peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-08-08 23:22:36 +02:00
Richard Henderson
8a1337e604 * Fix and tests for -readconfig
* Fixes for changeable block size
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* Fix and tests for -readconfig
* Fixes for changeable block size

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# 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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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  tests/qtest: add scenario for -readconfig handling
  vl: remove dead code in parse_memory_options()
  vl: fix [memory] section with -readconfig
  scsi-disk: ensure block size is non-zero and changes limited to bits 8-15
  scsi-disk: fix overflow when block size is not a multiple of BDRV_SECTOR_SIZE

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-08 09:57:37 -07:00
Richard Henderson
0b86b4e0da * Fix booting in the s390-ccw bios when physical and logical block sizes differ
* Fix the replay-linux avocado test
 * Relax a time constraint in iotest 264
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Merge tag 'pull-request-2022-08-08' of https://gitlab.com/thuth/qemu into staging

* Fix booting in the s390-ccw bios when physical and logical block sizes differ
* Fix the replay-linux avocado test
* Relax a time constraint in iotest 264

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# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [undefined]
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# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2022-08-08' of https://gitlab.com/thuth/qemu:
  tests/qemu-iotests/264: Allow up to 5s for the BLOCK_JOB_CANCEL event to arrive
  tests/avocado: fix replay-linux test
  pc-bios/s390-ccw: Update the s390-ccw.img with the block size fix
  pc-bios/s390-ccw: Fix booting with logical block size < physical block size

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-08 08:20:29 -07:00
Daniel P. Berrangé
f6a5f38062 tests/qtest: add scenario for -readconfig handling
This test of -readconfig validates the last three regressions we
have fixed with -readconfig:

 * Interpretation of memory size units as MiB not bytes
 * Allow use of [spice]
 * Allow use of [object]

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220805115529.124544-2-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-08 14:54:56 +02:00
Paolo Bonzini
69c05a2378 vl: remove dead code in parse_memory_options()
mem_str will never be an empty string, because qemu_opt_get_size() fails
if it encounters one:

   $ ./qemu-system-x86_64 -m size=
   qemu-system-x86_64: -m size=: Parameter size expects a non-negative number below 2^64
   Optional suffix k, M, G, T, P or E means kilo-, mega-, giga-, tera-, peta-
   and exabytes, respectively.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-08 12:58:12 +02:00
Paolo Bonzini
e12f0685e8 vl: fix [memory] section with -readconfig
The -M memory.* options do not have magic applied to them like the -m
option, namely no "M" (for mebibytes) is tacked at the end of a suffixless
value for "-M memory.size".

This magic is performed by parse_memory_options, and we have to do it for
both "-m" and the [memory] section of a config file.  Storing [memory]
sections directly to machine_opts_dict changed the meaning of

    [memory]
      size = "1024"

in a -readconfig file from 1024MiB to 8KiB (1024 Bytes rounded up to
8KiB silently).  To avoid this, the [memory] section has to be changed
back to QemuOpts (combining [memory] and "-m" will work fine thanks to
.merge_lists being true).

Change parse_memory_options() so that, similar to the older function
set_memory_options(), it operates after command line parsing is done;
and also call it where set_memory_options() used to be.

Note, the parsing code uses exit(1) instead of exit(EXIT_FAILURE) to
match neighboring code.

Reported-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Fixes: ce9d03fb3f ("machine: add mem compound property", 2022-05-12)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-08 12:57:31 +02:00
Qiang Liu
9390da5ef2 xlnx_dp: drop unsupported AUXCommand in xlnx_dp_aux_set_command
In xlnx_dp_aux_set_command, when the command leads to the default
branch, xlxn-dp will abort and then crash.

This patch removes this abort and drops this operation.

Fixes: 58ac482 ("introduce xlnx-dp")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/411
Reported-by: Qiang Liu <cyruscyliu@gmail.com>
Tested-by: Qiang Liu <cyruscyliu@gmail.com>
Suggested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Qiang Liu <cyruscyliu@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Frederic Konrad <fkonrad@amd.com>
Message-Id: <20220808080116.2184881-1-cyruscyliu@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-08-08 11:40:06 +02:00
Markus Armbruster
a32086de49 contrib/vhost-user-blk: Clean up deallocation of VuVirtqElement
We allocate VuVirtqElement with g_malloc() in
virtqueue_alloc_element(), but free it with free() in
vhost-user-blk.c.  Harmless, but use g_free() anyway.

One of the calls is guarded by a "not null" condition.  Useless,
because it cannot be null (it's dereferenced right before), and even
it it could be, free() and g_free() do the right thing.  Drop the
conditional.

Fixes: Coverity CID 1490290
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20220630085219.1305519-1-armbru@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-08-08 07:19:26 +02:00
Thomas Huth
407634970d tests/qemu-iotests/264: Allow up to 5s for the BLOCK_JOB_CANCEL event to arrive
It is possible to hit the assertTrue(delta_t < 2.0) on very loaded
systems. Increase the value to 5.0 to ease the situation a little bit.

Message-Id: <20220802123101.430757-1-thuth@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-07 18:51:35 +02:00
Pavel Dovgalyuk
c05a88c6b2 tests/avocado: fix replay-linux test
Last line of the test is missing by accident.
This patch fixes the script.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Message-Id: <165943656662.362178.2086588841425038338.stgit@pasha-ThinkPad-X280>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-07 18:51:35 +02:00
Thomas Huth
c3dd58ba6e pc-bios/s390-ccw: Update the s390-ccw.img with the block size fix
The new binary now gets the block size of virtio-blk devices right.

Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-07 18:22:35 +02:00
Thomas Huth
393296de19 pc-bios/s390-ccw: Fix booting with logical block size < physical block size
For accessing single blocks during boot, it's the logical block size that
matters. (Physical block sizes are rather interesting e.g. for creating
file systems with the correct alignment for speed reasons etc.).
So the s390-ccw bios has to use the logical block size for calculating
sector numbers during the boot phase, the "physical_block_exp" shift
value must not be taken into account. This change fixes the boot process
when the guest hast been installed on a disk where the logical block size
differs from the physical one, e.g. if the guest has been installed
like this:

 qemu-system-s390x -nographic -accel kvm -m 2G \
  -drive if=none,id=d1,file=fedora.iso,format=raw,media=cdrom \
  -device virtio-scsi -device scsi-cd,drive=d1 \
  -drive if=none,id=d2,file=test.qcow2,format=qcow2
  -device virtio-blk,drive=d2,physical_block_size=4096,logical_block_size=512

Linux correctly uses the logical block size of 512 for the installation,
but the s390-ccw bios tries to boot from a disk with 4096 block size so
far, as long as this patch has not been applied yet (well, it used to work
by accident in the past due to the virtio_assume_scsi() hack that used to
enforce 512 byte sectors on all virtio-block disks, but that hack has been
well removed in commit 5447de2619 to fix other scenarios).

Fixes: 5447de2619 ("pc-bios/s390-ccw/virtio-blkdev: Remove virtio_assume_scsi()")
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2112303
Message-Id: <20220805094214.285223-1-thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-07 12:54:12 +02:00
Richard Henderson
c669f22f1a LoongArch updates:
Store value in SET_FPU_* macros.
   Fix unused variable Werrors in acpi-build.c
   Update xml to match upstream gdb.
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Merge tag 'pull-la-20220805' of https://gitlab.com/rth7680/qemu into staging

LoongArch updates:
  Store value in SET_FPU_* macros.
  Fix unused variable Werrors in acpi-build.c
  Update xml to match upstream gdb.

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# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
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# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* tag 'pull-la-20220805' of https://gitlab.com/rth7680/qemu:
  target/loongarch: Update gdb_set_fpu() and gdb_get_fpu()
  target/loongarch: Update loongarch-fpu.xml
  target/loongarch: update loongarch-base64.xml
  target/loongarch: add gdb_arch_name()
  target/loongarch: Fix GDB get the wrong pc
  hw/loongarch: remove acpi-build.c unused variable 'aml_len'
  target/loongarch: Fix macros SET_FPU_* in cpu.h

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-05 12:55:53 -07:00