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2 years agoMerge remote-tracking branch 'remotes/kraxel/tags/usb-20210729-pull-request' into...
Peter Maydell [Thu, 29 Jul 2021 17:49:39 +0000 (18:49 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/usb-20210729-pull-request' into staging

usb: fixes for 6.1: usbredir, usb-host for windows, docs.

# gpg: Signature made Thu 29 Jul 2021 13:50:32 BST
# gpg:                using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138
# 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/usb-20210729-pull-request:
  docs: Fold usb2.txt passthrough information into usb.rst
  docs: Fold usb2.txt physical port addressing info into usb.rst
  docs: Fold usb2.txt USB controller information into usb.rst
  docs: Incorporate information in usb-storage.txt into rST manual
  usbredir: fix free call
  ci: add libusb for windows builds
  usb-host: wire up timer for windows

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging
Peter Maydell [Thu, 29 Jul 2021 15:07:02 +0000 (16:07 +0100)]
Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging

Bugfixes.

# gpg: Signature made Thu 29 Jul 2021 09:15:54 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini-gitlab/tags/for-upstream:
  libvhost-user: fix -Werror=format= warnings with __u64 fields
  meson: fix meson 0.58 warning with libvhost-user subproject
  target/i386: fix typo in ctl_has_irq
  target/i386: Added consistency checks for event injection
  configure: Add -Werror to avx2, avx512 tests
  Makefile: ignore long options
  i386: assert 'cs->kvm_state' is not null

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/thuth-gitlab/tags/pull-request-2021-07-29'...
Peter Maydell [Thu, 29 Jul 2021 12:17:20 +0000 (13:17 +0100)]
Merge remote-tracking branch 'remotes/thuth-gitlab/tags/pull-request-2021-07-29' into staging

* Document GitLab custom CI/CD variables
* Fix 'when:' condition in gitlab-CI jobs
* Disable tests in the gitlab-CI that fail due to out-of-memory conditions
* Allow pushing to "staging" again for maintainers without s390x access
* Fix migration-test build failure on SPARC
* Compile without "pie" on Haiku

# gpg: Signature made Thu 29 Jul 2021 07:17:17 BST
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/thuth-gitlab/tags/pull-request-2021-07-29:
  configure script fix for Haiku
  tests: Fix migration-test build failure for sparc
  gitlab-ci.d/custom-runners: Improve rules for the staging branch
  gitlab-ci.d/buildtest: Mark the aarch64 and ppc64-s390x CFI jobs as manual
  gitlab-ci.d/buildtest: Disable iotests 197 and 215
  gitlab-ci: Fix 'when:' condition in OpenSBI jobs
  gitlab-ci: Fix 'when:' condition in EDK2 jobs
  gitlab-ci: Fix 'when:' condition in acceptance_test_job_template
  docs: Document GitLab custom CI/CD variables

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/dg-gitlab/tags/ppc-for-6.1-20210729' into staging
Peter Maydell [Thu, 29 Jul 2021 09:48:11 +0000 (10:48 +0100)]
Merge remote-tracking branch 'remotes/dg-gitlab/tags/ppc-for-6.1-20210729' into staging

ppc patch queue 2021-07-29

Here's a small batch of bufixes for the ppc target to go into qemu-6.1.

# gpg: Signature made Thu 29 Jul 2021 08:01:00 BST
# gpg:                using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dg-gitlab/tags/ppc-for-6.1-20210729:
  kvm: ppc: Print meaningful message on KVM_CREATE_VM failure
  ppc/vof: Fix Coverity issues
  target/ppc: Ease L=0 requirement on cmp/cmpi/cmpl/cmpli for ppc32
  i2c/smbus_eeprom: Add feature bit to SPD data
  ppc/pegasos2: Fix spurious warning with -bios

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agodocs: Fold usb2.txt passthrough information into usb.rst
Peter Maydell [Wed, 28 Jul 2021 14:14:57 +0000 (15:14 +0100)]
docs: Fold usb2.txt passthrough information into usb.rst

Fold the usb2.txt information on device passthrough into usb.rst;
since this is the last part of the .txt file we can delete it now.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210728141457.14825-5-peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agodocs: Fold usb2.txt physical port addressing info into usb.rst
Peter Maydell [Wed, 28 Jul 2021 14:14:56 +0000 (15:14 +0100)]
docs: Fold usb2.txt physical port addressing info into usb.rst

Fold the usb2.txt documentation about specifying which physical
port a USB device should use into usb.rst.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210728141457.14825-4-peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agodocs: Fold usb2.txt USB controller information into usb.rst
Peter Maydell [Wed, 28 Jul 2021 14:14:55 +0000 (15:14 +0100)]
docs: Fold usb2.txt USB controller information into usb.rst

Fold the information in docs/usb2.txt about the different
kinds of supported USB controller into the main rST manual.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210728141457.14825-3-peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agodocs: Incorporate information in usb-storage.txt into rST manual
Peter Maydell [Wed, 28 Jul 2021 14:14:54 +0000 (15:14 +0100)]
docs: Incorporate information in usb-storage.txt into rST manual

We already have a section on USB in the rST manual; fold
the information in docs/usb-storage.txt into it.

We add 'format=raw' to the various -drive options in the code
examples, because QEMU will print warnings these days if you
omit it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210728141457.14825-2-peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agousbredir: fix free call
Gerd Hoffmann [Thu, 22 Jul 2021 07:27:56 +0000 (09:27 +0200)]
usbredir: fix free call

data might point into the middle of a larger buffer, there is a separate
free_on_destroy pointer passed into bufp_alloc() to handle that.  It is
only used in the normal workflow though, not when dropping packets due
to the queue being full.  Fix that.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/491
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210722072756.647673-1-kraxel@redhat.com>

2 years agoci: add libusb for windows builds
Gerd Hoffmann [Wed, 23 Jun 2021 08:52:49 +0000 (10:52 +0200)]
ci: add libusb for windows builds

Add CI coverage for usb passthrough on windows.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Message-Id: <20210623085249.1151901-3-kraxel@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agousb-host: wire up timer for windows
Gerd Hoffmann [Wed, 23 Jun 2021 08:52:48 +0000 (10:52 +0200)]
usb-host: wire up timer for windows

On windows we can't wait on file descriptors.
Poll libusb using a timer instead.

Fixes long-standing FIXME.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/431
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20210623085249.1151901-2-kraxel@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agolibvhost-user: fix -Werror=format= warnings with __u64 fields
Marc-André Lureau [Wed, 5 May 2021 15:13:13 +0000 (19:13 +0400)]
libvhost-user: fix -Werror=format= warnings with __u64 fields

../subprojects/libvhost-user/libvhost-user.c:1070:12: error: format ‘%lx’ expects argument of type ‘long unsigned int’, but argument 3 has type ‘__u64’ {aka ‘long long unsigned int’} [-Werror=format=]
 1070 |     DPRINT("    desc_user_addr:   0x%016" PRIx64 "\n", vra->desc_user_addr);
      |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~              ~~~~~~~~~~~~~~~~~~~
      |                                                           |
      |                                                           __u64 {aka long long unsigned int}

Rather than using %llx, which may fail if __u64 is declared differently
elsewhere, let's just cast the values. Feel free to propose a better solution!

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210505151313.203258-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 years agomeson: fix meson 0.58 warning with libvhost-user subproject
Marc-André Lureau [Wed, 5 May 2021 15:13:12 +0000 (19:13 +0400)]
meson: fix meson 0.58 warning with libvhost-user subproject

Meson now checks that subprojects do not access files from parent
project. While we all agree this is best practice, libvhost-user also
want to share a few headers with QEMU, and libvhost-user isn't really a
standalone project at this point (although this is making the dependency
a bit more explicit).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210505151313.203258-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 years agotarget/i386: fix typo in ctl_has_irq
Paolo Bonzini [Thu, 29 Jul 2021 07:56:38 +0000 (09:56 +0200)]
target/i386: fix typo in ctl_has_irq

The shift constant was incorrect, causing int_prio to always be zero.

Signed-off-by: Lara Lazier <laramglazier@gmail.com>
[Rewritten commit message since v1 had already been included. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 years agotarget/i386: Added consistency checks for event injection
Lara Lazier [Sun, 25 Jul 2021 09:08:55 +0000 (11:08 +0200)]
target/i386: Added consistency checks for event injection

VMRUN exits with SVM_EXIT_ERR if either:
 * The event injected has a reserved type.
 * When the event injected is of type 3 (exception), and the vector that
 has been specified does not correspond to an exception.

This does not fix the entire exc_inj test in kvm-unit-tests.

Signed-off-by: Lara Lazier <laramglazier@gmail.com>
Message-Id: <20210725090855.19713-1-laramglazier@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 years agoconfigure: Add -Werror to avx2, avx512 tests
Richard Henderson [Mon, 19 Jul 2021 20:01:12 +0000 (10:01 -1000)]
configure: Add -Werror to avx2, avx512 tests

When using clang, we get

ERROR: configure test passed without -Werror but failed with -Werror.
       This is probably a bug in the configure script. The failing command
       will be at the bottom of config.log.
       You can run configure with --disable-werror to bypass this check.

What we really want from these two tests is whether the
entire code sequence is supported, including pragmas.
Adding -Werror makes the test properly fail for clang.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210719200112.295316-1-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 years agoMakefile: ignore long options
Alexey Neyman [Thu, 22 Jul 2021 02:08:46 +0000 (19:08 -0700)]
Makefile: ignore long options

When searching for options like -n in MAKEFLAGS, current code may result
in a false positive match when make is invoked with long options like
--no-print-directory. This has been observed with certain versions of
host make (e.g. 3.82) while building the Qemu package in buildroot.

Filter out such long options before searching for one-character options.

Signed-off-by: Alexey Neyman <stilor@att.net>
Message-Id: <20210722020846.3678817-1-stilor@att.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 years agoi386: assert 'cs->kvm_state' is not null
Vitaly Kuznetsov [Fri, 16 Jul 2021 11:58:51 +0000 (13:58 +0200)]
i386: assert 'cs->kvm_state' is not null

Coverity reports potential NULL pointer dereference in
get_supported_hv_cpuid_legacy() when 'cs->kvm_state' is NULL. While
'cs->kvm_state' can indeed be NULL in hv_cpuid_get_host(),
kvm_hyperv_expand_features() makes sure that it only happens when
KVM_CAP_SYS_HYPERV_CPUID is supported and KVM_CAP_SYS_HYPERV_CPUID
implies KVM_CAP_HYPERV_CPUID so get_supported_hv_cpuid_legacy() is
never really called. Add asserts to strengthen the protection against
broken KVM behavior.

Coverity: CID 1458243
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20210716115852.418293-1-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 years agoconfigure script fix for Haiku
Richard Zak [Wed, 21 Jul 2021 01:40:04 +0000 (21:40 -0400)]
configure script fix for Haiku

Haiku does not support compiling with -fpie. See the discussion here
for details:

 https://discuss.haiku-os.org/t/qemu-on-haiku-sdl-issue/10961/6?u=rjzak

Signed-off-by: Richard Zak <richard.j.zak@gmail.com>
Message-Id: <CAOakUfM8zMpYiAEn-_f9s1DHdVB-Bq9fGMM=Hfr8hJW9ra6aWw@mail.gmail.com>
[thuth: Tweaked title and patch description]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agotests: Fix migration-test build failure for sparc
Peter Xu [Wed, 28 Jul 2021 21:41:28 +0000 (17:41 -0400)]
tests: Fix migration-test build failure for sparc

Even if <linux/kvm.h> seems to exist for all archs on linux, however including
it with __linux__ defined seems to be not working yet as it'll try to include
asm/kvm.h and that can be missing for archs that do not support kvm.

To fix this (instead of any attempt to fix linux headers..), we can mark the
header to be x86_64 only, because it's so far only service for adding the kvm
dirty ring test.

Fixes: 1f546b709d6 ("tests: migration-test: Add dirty ring test")
Reported-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210728214128.206198-1-peterx@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agogitlab-ci.d/custom-runners: Improve rules for the staging branch
Thomas Huth [Wed, 28 Jul 2021 17:38:57 +0000 (19:38 +0200)]
gitlab-ci.d/custom-runners: Improve rules for the staging branch

If maintainers are currently pushing to a branch called "staging"
in their repository, they are ending up with some stuck jobs - unless
they have a s390x CI runner machine available. That's ugly, we should
make sure that the related jobs are really only started if such a
runner is available. So let's only run these jobs if it's the
"staging" branch of the main repository of the QEMU project (where
we can be sure that the s390x runner is available), or if the user
explicitly set a S390X_RUNNER_AVAILABLE variable in their CI configs
to declare that they have such a runner available, too.

Fixes: 4799c21023 ("Jobs based on custom runners: add job definitions ...")
Message-Id: <20210728173857.497523-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agogitlab-ci.d/buildtest: Mark the aarch64 and ppc64-s390x CFI jobs as manual
Thomas Huth [Wed, 28 Jul 2021 07:09:14 +0000 (09:09 +0200)]
gitlab-ci.d/buildtest: Mark the aarch64 and ppc64-s390x CFI jobs as manual

These two jobs are currently failing very often - the linker seems to
get killed due to out-of-memory problems. Since apparently nobody has
currently an idea how to fix that nicely, let's mark the jobs as manual
for the time being until someone comes up with a proper fix.

Message-Id: <20210728075141.400816-1-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agogitlab-ci.d/buildtest: Disable iotests 197 and 215
Thomas Huth [Tue, 27 Jul 2021 16:25:42 +0000 (18:25 +0200)]
gitlab-ci.d/buildtest: Disable iotests 197 and 215

The iotests 197 and 215 are occasionally failing in the gitlab-CI now.
According to the log, the failure is "./common.rc: Killed" which might
be an indication that the process has been killed due to out-of-memory
reasons. Both tests are doing a big read with 2G that likely causes
this issue. It used to work fine in the gitlab-CI in the past, but
either the program is now requiring more free memory, or the the CI
containers have changed, so that the OOM condition now sometimes occurs.

Anyway, these two tests are not really suitable for CI containers if
they are doing things like huge reads (which is likely also the reason
why they haven't been added to the "auto" group in the past), so let's
simply disable them in the gitlab-CI now, too.

Message-Id: <20210727162542.318882-1-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agogitlab-ci: Fix 'when:' condition in OpenSBI jobs
Philippe Mathieu-Daudé [Tue, 27 Jul 2021 14:24:31 +0000 (16:24 +0200)]
gitlab-ci: Fix 'when:' condition in OpenSBI jobs

Jobs depending on another should not use the 'when: always'
condition, because if a dependency failed we should not keep
running jobs depending on it. The correct condition is
'when: on_success'.

Fixes: c6fc0fc1a71 ("gitlab-ci.yml: Add jobs to build OpenSBI firmware binaries")
Reported-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Message-Id: <20210727142431.1672530-5-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agogitlab-ci: Fix 'when:' condition in EDK2 jobs
Philippe Mathieu-Daudé [Tue, 27 Jul 2021 14:24:30 +0000 (16:24 +0200)]
gitlab-ci: Fix 'when:' condition in EDK2 jobs

Jobs depending on another should not use the 'when: always'
condition, because if a dependency failed we should not keep
running jobs depending on it. The correct condition is
'when: on_success'.

Fixes: 71920809cea ("gitlab-ci.yml: Add jobs to build EDK2 firmware binaries")
Reported-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210727142431.1672530-4-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agogitlab-ci: Fix 'when:' condition in acceptance_test_job_template
Philippe Mathieu-Daudé [Tue, 27 Jul 2021 14:24:29 +0000 (16:24 +0200)]
gitlab-ci: Fix 'when:' condition in acceptance_test_job_template

Jobs depending on another should not use the 'when: always'
condition, because if a dependency failed we should not keep
running jobs depending on it. The correct condition is
'when: on_success'.

Fixes: f56bf4caf71 ("gitlab: Run Avocado tests manually (except mainstream CI)")
Reported-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210727142431.1672530-3-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agodocs: Document GitLab custom CI/CD variables
Philippe Mathieu-Daudé [Tue, 27 Jul 2021 14:24:28 +0000 (16:24 +0200)]
docs: Document GitLab custom CI/CD variables

We introduced the QEMU_CI_AVOCADO_TESTING variable in commit f56bf4caf
("gitlab: Run Avocado tests manually (except mainstream CI)"), but
forgot to document it properly. Do it now.

Suggested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210727142431.1672530-2-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 years agokvm: ppc: Print meaningful message on KVM_CREATE_VM failure
Fabiano Rosas [Thu, 22 Jul 2021 14:13:40 +0000 (11:13 -0300)]
kvm: ppc: Print meaningful message on KVM_CREATE_VM failure

PowerPC has two KVM types (HV, PR) that translate into three kernel
modules:

kvm.ko - common kvm code
kvm_hv.ko - kvm running with MSR_HV=1 or MSR_HV|PR=0 in a nested guest.
kvm_pr.ko - kvm running in usermode MSR_PR=1.

Since the two KVM types can both be running at the same time, this
creates a situation in which it is possible for one or both of the
modules to fail to initialize, leaving the generic one behind. This
leads QEMU to think it can create a guest, but KVM will fail when
calling the type-specific code:

 ioctl(KVM_CREATE_VM) failed: 22 Invalid argument
 qemu-kvm: failed to initialize KVM: Invalid argument

Ideally this would be solved kernel-side, but it might be a while
until we can get rid of one of the modules. So in the meantime this
patch tries to make this less confusing for the end user by adding a
more elucidative message:

 ioctl(KVM_CREATE_VM) failed: 22 Invalid argument
 PPC KVM module is not loaded. Try 'modprobe kvm_hv'.

[dwg: Fixed error in #elif which failed compile on !ppc hosts]
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20210722141340.2367905-1-farosas@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2 years agoppc/vof: Fix Coverity issues
Alexey Kardashevskiy [Tue, 20 Jul 2021 05:07:26 +0000 (15:07 +1000)]
ppc/vof: Fix Coverity issues

Coverity reported issues which are caused by mixing of signed return codes
from DTC and unsigned return codes of the client interface.

This introduces PROM_ERROR and makes distinction between the error types.

This fixes NEGATIVE_RETURNS, OVERRUN issues reported by Coverity.

This adds a comment about the return parameters number in the VOF hcall.
The reason for such counting is to keep the numbers look the same in
vof_client_handle() and the Linux (an OF client).

vmc->client_architecture_support() returns target_ulong and we want to
propagate this to the client (for example H_MULTI_THREADS_ACTIVE).
The VOF path to do_client_architecture_support() needs chopping off
the top 32bit but SLOF's H_CAS does not; and either way the return values
are either 0 or 32bit negative error code. For now this chops
the top 32bits.

This makes "claim" fail if the allocated address is above 4GB as
the client interface is 32bit. This still allows claiming memory above
4GB as potentially initrd can be put there and the client can read
the address from the FDT's "available" property.

Fixes: CID 14581391458138145813714581331458132
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20210720050726.2737405-1-aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2 years agotarget/ppc: Ease L=0 requirement on cmp/cmpi/cmpl/cmpli for ppc32
Matheus Ferst [Tue, 20 Jul 2021 13:55:07 +0000 (10:55 -0300)]
target/ppc: Ease L=0 requirement on cmp/cmpi/cmpl/cmpli for ppc32

In commit 8f0a4b6a9b, we started to require L=0 for ppc32 to match what
The Programming Environments Manual say:

"For 32-bit implementations, the L field must be cleared, otherwise
the instruction form is invalid."

The stricter behavior, however, broke AROS boot on sam460ex, which is a
regression from 6.0. This patch partially reverts the change, raising
the exception only for CPUs known to require L=0 (e500 and e500mc) and
logging a guest error for other cases.

Both behaviors are acceptable by the PowerISA, which allows "the system
illegal instruction error handler to be invoked or yield boundedly
undefined results."

Reported-by: BALATON Zoltan <balaton@eik.bme.hu>
Fixes: 8f0a4b6a9b ("target/ppc: Move cmp/cmpi/cmpl/cmpli to decodetree")
Tested-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20210720135507.2444635-1-matheus.ferst@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2 years agoi2c/smbus_eeprom: Add feature bit to SPD data
BALATON Zoltan [Thu, 15 Jul 2021 16:50:44 +0000 (18:50 +0200)]
i2c/smbus_eeprom: Add feature bit to SPD data

Add the differential clock input feature bit to the generated SPD
data. Most guests don't seem to care but pegasos2 firmware version 1.2
checks for this bit and stops with unsupported module type error if
it's not present. Since this feature is likely present on real memory
modules add it in the general code rather than patching the generated
SPD data in pegasos2 board only.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <19d42ade295d5297aa624a9eb757b8df18cf64d6.1626367844.git.balaton@eik.bme.hu>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2 years agoppc/pegasos2: Fix spurious warning with -bios
BALATON Zoltan [Thu, 15 Jul 2021 16:50:44 +0000 (18:50 +0200)]
ppc/pegasos2: Fix spurious warning with -bios

The -append option is currently not compatible with -bios (as we don't
yet emulate nvram so we can only put it in the environment with VOF).
Therefore a warning is printed if -append is used with -bios but
because the default value of kernel_cmdline seems to be an empty
string instead of NULL this warning was printed even without -append
when -bios is used. Only print warning if -append is given.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <483ac599a1407b766179aaea2794aed60cc09f53.1626367844.git.balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2 years agoMerge remote-tracking branch 'remotes/armbru/tags/pull-misc-2021-07-27' into staging
Peter Maydell [Wed, 28 Jul 2021 12:32:12 +0000 (13:32 +0100)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-misc-2021-07-27' into staging

Miscellaneous patches for 2021-07-27

# gpg: Signature made Tue 27 Jul 2021 16:19:35 BST
# 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

* remotes/armbru/tags/pull-misc-2021-07-27:
  vl: Don't continue after -smp help.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoUpdate version for v6.1.0-rc1 release
Peter Maydell [Tue, 27 Jul 2021 17:07:52 +0000 (18:07 +0100)]
Update version for v6.1.0-rc1 release

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agovl: Don't continue after -smp help.
Markus Armbruster [Tue, 20 Jul 2021 12:54:08 +0000 (14:54 +0200)]
vl: Don't continue after -smp help.

We continue after -smp help:

    $ qemu-system-x86_64 -smp help -display none -monitor stdio
    smp-opts options:
      cores=<num>
      cpus=<num>
      dies=<num>
      maxcpus=<num>
      sockets=<num>
      threads=<num>
    QEMU 6.0.50 monitor - type 'help' for more information
    (qemu)

Other options, such as -object help and -device help, don't.

Adjust -smp not to continue either.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210720125408.387910-17-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@ionos.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
2 years agoMerge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210727' into...
Peter Maydell [Tue, 27 Jul 2021 14:32:00 +0000 (15:32 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210727' into staging

target-arm queue:
 * hw/arm/smmuv3: Check 31st bit to see if CD is valid
 * qemu-options.hx: Fix formatting of -machine memory-backend option
 * hw: aspeed_gpio: Fix memory size
 * hw/arm/nseries: Display hexadecimal value with '0x' prefix
 * Add sve-default-vector-length cpu property
 * docs: Update path that mentions deprecated.rst
 * hw/intc/armv7m_nvic: for v8.1M VECTPENDING hides S exceptions from NS
 * hw/intc/armv7m_nvic: Correct size of ICSR.VECTPENDING
 * hw/intc/armv7m_nvic: ISCR.ISRPENDING is set for non-enabled pending interrupts
 * target/arm: Report M-profile alignment faults correctly to the guest
 * target/arm: Add missing 'return's after calling v7m_exception_taken()
 * target/arm: Enforce that M-profile SP low 2 bits are always zero

# gpg: Signature made Tue 27 Jul 2021 11:46:17 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-20210727:
  hw: aspeed_gpio: Fix memory size
  hw/arm/nseries: Display hexadecimal value with '0x' prefix
  target/arm: Add sve-default-vector-length cpu property
  target/arm: Export aarch64_sve_zcr_get_valid_len
  target/arm: Correctly bound length in sve_zcr_get_valid_len
  docs: Update path that mentions deprecated.rst
  hw/intc/armv7m_nvic: for v8.1M VECTPENDING hides S exceptions from NS
  hw/intc/armv7m_nvic: Correct size of ICSR.VECTPENDING
  hw/intc/armv7m_nvic: ISCR.ISRPENDING is set for non-enabled pending interrupts
  target/arm: Report M-profile alignment faults correctly to the guest
  target/arm: Add missing 'return's after calling v7m_exception_taken()
  target/arm: Enforce that M-profile SP low 2 bits are always zero
  qemu-options.hx: Fix formatting of -machine memory-backend option
  hw/arm/smmuv3: Check 31st bit to see if CD is valid

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/nvme/tags/nvme-next-pull-request' into staging
Peter Maydell [Tue, 27 Jul 2021 12:24:56 +0000 (13:24 +0100)]
Merge remote-tracking branch 'remotes/nvme/tags/nvme-next-pull-request' into staging

hw/nvme fixes

* new PMR test (Gollu Appalanaidu)
* pmr/sgl mapping fix (Padmakar Kalghatgi)
* hotplug fixes (me)
* mmio out-of-bound read fix (me)
* big-endian host fixes (me)

# gpg: Signature made Mon 26 Jul 2021 20:18:12 BST
# gpg:                using RSA key 522833AA75E2DCE6A24766C04DE1AF316D4F0DE9
# gpg: Good signature from "Klaus Jensen <its@irrelevant.dk>" [unknown]
# gpg:                 aka "Klaus Jensen <k.jensen@samsung.com>" [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: DDCA 4D9C 9EF9 31CC 3468  4272 63D5 6FC5 E55D A838
#      Subkey fingerprint: 5228 33AA 75E2 DCE6 A247  66C0 4DE1 AF31 6D4F 0DE9

* remotes/nvme/tags/nvme-next-pull-request:
  tests/qtest/nvme-test: add mmio read test
  hw/nvme: fix mmio read
  hw/nvme: fix out-of-bounds reads
  hw/nvme: use symbolic names for registers
  hw/nvme: split pmrmsc register into upper and lower
  hw/nvme: fix controller hot unplugging
  tests/qtest/nvme-test: add persistent memory region test
  hw/nvme: error handling for too many mappings
  hw/nvme: unregister controller with subsystem at exit
  hw/nvme: mark nvme-subsys non-hotpluggable
  hw/nvme: remove NvmeCtrl parameter from ns setup/check functions

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agohw: aspeed_gpio: Fix memory size
Joel Stanley [Tue, 13 Jul 2021 06:58:52 +0000 (16:28 +0930)]
hw: aspeed_gpio: Fix memory size

The macro used to calculate the maximum memory size of the MMIO region
had a mistake, causing all GPIO models to create a mapping of 0x9D8.
The intent was to have it be 0x9D8 - 0x800.

This extra size doesn't matter on ast2400 and ast2500, which have a 4KB
region set aside for the GPIO controller.

On the ast2600 the 3.3V and 1.8V GPIO controllers are 2KB apart, so the
regions would overlap. Worse was the 1.8V controller would map over the
top of the following peripheral, which happens to be the RTC.

The mmio region used by each device is a maximum of 2KB, so avoid the
calculations and hard code this as the maximum.

Fixes: 36d737ee82b2 ("hw/gpio: Add in AST2600 specific implementation")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Rashmica Gupta <rashmica.g@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20210713065854.134634-2-joel@jms.id.au
[PMM: fix autocorrect error in commit message]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agohw/arm/nseries: Display hexadecimal value with '0x' prefix
Philippe Mathieu-Daudé [Mon, 26 Jul 2021 15:09:53 +0000 (17:09 +0200)]
hw/arm/nseries: Display hexadecimal value with '0x' prefix

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210726150953.1218690-1-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agotarget/arm: Add sve-default-vector-length cpu property
Richard Henderson [Fri, 23 Jul 2021 20:33:44 +0000 (10:33 -1000)]
target/arm: Add sve-default-vector-length cpu property

Mirror the behavour of /proc/sys/abi/sve_default_vector_length
under the real linux kernel.  We have no way of passing along
a real default across exec like the kernel can, but this is a
decent way of adjusting the startup vector length of a process.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/482
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210723203344.968563-4-richard.henderson@linaro.org
[PMM: tweaked docs formatting, document -1 special-case,
 added fixup patch from RTH mentioning QEMU's maximum veclen.]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agotarget/arm: Export aarch64_sve_zcr_get_valid_len
Richard Henderson [Fri, 23 Jul 2021 20:33:43 +0000 (10:33 -1000)]
target/arm: Export aarch64_sve_zcr_get_valid_len

Rename from sve_zcr_get_valid_len and make accessible
from outside of helper.c.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210723203344.968563-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agotarget/arm: Correctly bound length in sve_zcr_get_valid_len
Richard Henderson [Fri, 23 Jul 2021 20:33:42 +0000 (10:33 -1000)]
target/arm: Correctly bound length in sve_zcr_get_valid_len

Currently, our only caller is sve_zcr_len_for_el, which has
already masked the length extracted from ZCR_ELx, so the
masking done here is a nop.  But we will shortly have uses
from other locations, where the length will be unmasked.

Saturate the length to ARM_MAX_VQ instead of truncating to
the low 4 bits.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210723203344.968563-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agodocs: Update path that mentions deprecated.rst
Mao Zhongyi [Fri, 23 Jul 2021 06:58:28 +0000 (14:58 +0800)]
docs: Update path that mentions deprecated.rst

Missed in commit f3478392 "docs: Move deprecation, build
and license info out of system/"

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210723065828.1336760-1-maozhongyi@cmss.chinamobile.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agohw/intc/armv7m_nvic: for v8.1M VECTPENDING hides S exceptions from NS
Peter Maydell [Fri, 23 Jul 2021 16:21:46 +0000 (17:21 +0100)]
hw/intc/armv7m_nvic: for v8.1M VECTPENDING hides S exceptions from NS

In Arm v8.1M the VECTPENDING field in the ICSR has new behaviour: if
the register is accessed NonSecure and the highest priority pending
enabled exception (that would be returned in the VECTPENDING field)
targets Secure, then the VECTPENDING field must read 1 rather than
the exception number of the pending exception. Implement this.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210723162146.5167-7-peter.maydell@linaro.org

2 years agohw/intc/armv7m_nvic: Correct size of ICSR.VECTPENDING
Peter Maydell [Fri, 23 Jul 2021 16:21:45 +0000 (17:21 +0100)]
hw/intc/armv7m_nvic: Correct size of ICSR.VECTPENDING

The VECTPENDING field in the ICSR is 9 bits wide, in bits [20:12] of
the register.  We were incorrectly masking it to 8 bits, so it would
report the wrong value if the pending exception was greater than 256.
Fix the bug.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210723162146.5167-6-peter.maydell@linaro.org

2 years agohw/intc/armv7m_nvic: ISCR.ISRPENDING is set for non-enabled pending interrupts
Peter Maydell [Fri, 23 Jul 2021 16:21:44 +0000 (17:21 +0100)]
hw/intc/armv7m_nvic: ISCR.ISRPENDING is set for non-enabled pending interrupts

The ISCR.ISRPENDING bit is set when an external interrupt is pending.
This is true whether that external interrupt is enabled or not.
This means that we can't use 's->vectpending == 0' as a shortcut to
"ISRPENDING is zero", because s->vectpending indicates only the
highest priority pending enabled interrupt.

Remove the incorrect optimization so that if there is no pending
enabled interrupt we fall through to scanning through the whole
interrupt array.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210723162146.5167-5-peter.maydell@linaro.org

2 years agotarget/arm: Report M-profile alignment faults correctly to the guest
Peter Maydell [Fri, 23 Jul 2021 16:21:43 +0000 (17:21 +0100)]
target/arm: Report M-profile alignment faults correctly to the guest

For M-profile, we weren't reporting alignment faults triggered by the
generic TCG code correctly to the guest.  These get passed into
arm_v7m_cpu_do_interrupt() as an EXCP_DATA_ABORT with an A-profile
style exception.fsr value of 1.  We didn't check for this, and so
they fell through into the default of "assume this is an MPU fault"
and were reported to the guest as a data access violation MPU fault.

Report these alignment faults as UsageFaults which set the UNALIGNED
bit in the UFSR.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210723162146.5167-4-peter.maydell@linaro.org

2 years agotarget/arm: Add missing 'return's after calling v7m_exception_taken()
Peter Maydell [Fri, 23 Jul 2021 16:21:42 +0000 (17:21 +0100)]
target/arm: Add missing 'return's after calling v7m_exception_taken()

In do_v7m_exception_exit(), we perform various checks as part of
performing the exception return.  If one of these checks fails, the
architecture requires that we take an appropriate exception on the
existing stackframe.  We implement this by calling
v7m_exception_taken() to set up to take the new exception, and then
immediately returning from do_v7m_exception_exit() without proceeding
any further with the unstack-and-exception-return process.

In a couple of checks that are new in v8.1M, we forgot the "return"
statement, with the effect that if bad code in the guest tripped over
these checks we would set up to take a UsageFault exception but then
blunder on trying to also unstack and return from the original
exception, with the probable result that the guest would crash.

Add the missing return statements.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210723162146.5167-3-peter.maydell@linaro.org

2 years agotarget/arm: Enforce that M-profile SP low 2 bits are always zero
Peter Maydell [Fri, 23 Jul 2021 16:21:41 +0000 (17:21 +0100)]
target/arm: Enforce that M-profile SP low 2 bits are always zero

For M-profile, unlike A-profile, the low 2 bits of SP are defined to be
RES0H, which is to say that they must be hardwired to zero so that
guest attempts to write non-zero values to them are ignored.

Implement this behaviour by masking out the low bits:
 * for writes to r13 by the gdbstub
 * for writes to any of the various flavours of SP via MSR
 * for writes to r13 via store_reg() in generated code

Note that all the direct uses of cpu_R[] in translate.c are in places
where the register is definitely not r13 (usually because that has
been checked for as an UNDEFINED or UNPREDICTABLE case and handled as
UNDEF).

All the other writes to regs[13] in C code are either:
 * A-profile only code
 * writes of values we can guarantee to be aligned, such as
   - writes of previous-SP-value plus or minus a 4-aligned constant
   - writes of the value in an SP limit register (which we already
     enforce to be aligned)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210723162146.5167-2-peter.maydell@linaro.org

2 years agoqemu-options.hx: Fix formatting of -machine memory-backend option
Peter Maydell [Mon, 19 Jul 2021 10:52:57 +0000 (11:52 +0100)]
qemu-options.hx: Fix formatting of -machine memory-backend option

The documentation of the -machine memory-backend has some minor
formatting errors:
 * Misindentation of the initial line meant that the whole option
   section is incorrectly indented in the HTML output compared to
   the other -machine options
 * The examples weren't indented, which meant that they were formatted
   as plain run-on text including outputting the "::" as text.
 * The a) b) list has no rst-format markup so it is rendered as
   a single run-on paragraph

Fix the formatting.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20210719105257.3599-1-peter.maydell@linaro.org

2 years agohw/arm/smmuv3: Check 31st bit to see if CD is valid
Joe Komlodi [Mon, 26 Jul 2021 10:07:18 +0000 (11:07 +0100)]
hw/arm/smmuv3: Check 31st bit to see if CD is valid

The bit to see if a CD is valid is the last bit of the first word of the CD.

Signed-off-by: Joe Komlodi <joe.komlodi@xilinx.com>
Message-id: 1626728232-134665-2-git-send-email-joe.komlodi@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/dgilbert-gitlab/tags/pull-migration-20210726a...
Peter Maydell [Tue, 27 Jul 2021 09:55:50 +0000 (10:55 +0100)]
Merge remote-tracking branch 'remotes/dgilbert-gitlab/tags/pull-migration-20210726a' into staging

Migration fixes 2021-07-26

Peter's fix for a bunch of races
 -> Seem to fix the occasional crash seen by Peter

Wei's fix for migration with free page hinting
 -> Bug has been around for a while, but makes a huge difference

My fix for OpenBSD test corner case

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
# gpg: Signature made Mon 26 Jul 2021 13:42:16 BST
# gpg:                using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert-gitlab/tags/pull-migration-20210726a:
  migration: clear the memory region dirty bitmap when skipping free pages
  migration: Move the yank unregister of channel_close out
  migration: Teach QEMUFile to be QIOChannel-aware
  migration: Introduce migration_ioc_[un]register_yank()
  migration: Make from_dst_file accesses thread-safe
  migration: Fix missing join() of rp_thread
  tests/qtest/migration-test.c: use 127.0.0.1 instead of 0

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/rth-gitlab/tags/pull-tcg-20210726' into staging
Peter Maydell [Tue, 27 Jul 2021 07:35:01 +0000 (08:35 +0100)]
Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-tcg-20210726' into staging

Fix icount accounting.
Replace bitrev8 with revbit8.
Fixes for set but not used warnings.

# gpg: Signature made Mon 26 Jul 2021 22:45:37 BST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth-gitlab/tags/pull-tcg-20210726:
  tests/unit: Remove unused variable from test_io
  linux-user/syscall: Remove unused variable from execve
  hw/pci-hist/pnv_phb4: Fix typo in pnv_phb4_ioda_write
  hw/ppc/spapr_events: Remove unused variable from check_exception
  hw/audio/adlib: Remove unused variable in adlib_callback
  net/checksum: Remove unused variable in net_checksum_add_iov
  util/selfmap: Discard mapping on error
  accel/tcg: Remove unused variable in cpu_exec
  nbd/server: Mark variable unused in nbd_negotiate_meta_queries
  bitops.h: revert db1ffc32dd ("qemu/bitops.h: add bitrev8 implementation")
  accel/tcg: Remove unnecessary check on icount_extra in cpu_loop_exec_tb()
  accel/tcg: Don't use CF_COUNT_MASK as the max value of icount_decr.u16.low

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/kraxel/tags/fixes-20210726-pull-request' into...
Peter Maydell [Mon, 26 Jul 2021 19:50:19 +0000 (20:50 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/fixes-20210726-pull-request' into staging

ui: fixes for 6.1

# gpg: Signature made Mon 26 Jul 2021 12:05:33 BST
# gpg:                using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138
# 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/fixes-20210726-pull-request:
  ui/gtk: add a keyboard fifo to the VTE consoles
  ui: update keycodemapdb submodule commit
  ui/cocoa: Fix the type of main's argv
  ui/egl-headless: Remove a check for CONFIG_OPENGL
  ui/spice: Use HAVE_SPICE_GL for OpenGL checks
  ui/gtk: Fix relative mouse with multiple monitors

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agotests/qtest/nvme-test: add mmio read test
Klaus Jensen [Tue, 13 Jul 2021 17:33:14 +0000 (19:33 +0200)]
tests/qtest/nvme-test: add mmio read test

Add a regression test for mmio read on big-endian hosts.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
2 years agohw/nvme: fix mmio read
Klaus Jensen [Tue, 13 Jul 2021 17:31:27 +0000 (19:31 +0200)]
hw/nvme: fix mmio read

The new PMR test unearthed a long-standing issue with MMIO reads on
big-endian hosts.

Fix this by unconditionally storing all controller registers in little
endian.

Cc: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2 years agohw/nvme: fix out-of-bounds reads
Klaus Jensen [Tue, 13 Jul 2021 17:24:04 +0000 (19:24 +0200)]
hw/nvme: fix out-of-bounds reads

Peter noticed that mmio access may read into the NvmeParams member in
the NvmeCtrl struct.

Fix the bounds check.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2 years agohw/nvme: use symbolic names for registers
Klaus Jensen [Tue, 13 Jul 2021 14:29:59 +0000 (16:29 +0200)]
hw/nvme: use symbolic names for registers

Add the NvmeBarRegs enum and use these instead of explicit register
offsets.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
2 years agohw/nvme: split pmrmsc register into upper and lower
Klaus Jensen [Tue, 13 Jul 2021 12:34:52 +0000 (14:34 +0200)]
hw/nvme: split pmrmsc register into upper and lower

The specification uses a set of 32 bit PMRMSCL and PMRMSCU registers to
make up the 64 bit logical PMRMSC register.

Make it so.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
2 years agohw/nvme: fix controller hot unplugging
Klaus Jensen [Fri, 23 Apr 2021 16:55:11 +0000 (18:55 +0200)]
hw/nvme: fix controller hot unplugging

Prior to this patch the nvme-ns devices are always children of the
NvmeBus owned by the NvmeCtrl. This causes the namespaces to be
unrealized when the parent device is removed. However, when subsystems
are involved, this is not what we want since the namespaces may be
attached to other controllers as well.

This patch adds an additional NvmeBus on the subsystem device. When
nvme-ns devices are realized, if the parent controller device is linked
to a subsystem, the parent bus is set to the subsystem one instead. This
makes sure that namespaces are kept alive and not unrealized.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2 years agotests/qtest/nvme-test: add persistent memory region test
Gollu Appalanaidu [Fri, 18 Jun 2021 10:34:31 +0000 (16:04 +0530)]
tests/qtest/nvme-test: add persistent memory region test

This will test the PMR functionality.

Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
[k.jensen: replaced memory-backend-file with memory-backend-ram]
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2 years agohw/nvme: error handling for too many mappings
Padmakar Kalghatgi [Fri, 9 Jul 2021 05:58:40 +0000 (07:58 +0200)]
hw/nvme: error handling for too many mappings

If the number of PRP/SGL mappings exceed 1024, reads and writes will
fail because of an internal QEMU limitation of max 1024 vectors.

Signed-off-by: Padmakar Kalghatgi <p.kalghatgi@samsung.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
[k.jensen: changed the error message to be more generic]
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2 years agohw/nvme: unregister controller with subsystem at exit
Klaus Jensen [Tue, 6 Jul 2021 08:51:36 +0000 (10:51 +0200)]
hw/nvme: unregister controller with subsystem at exit

Make sure the controller is unregistered from the subsystem when device
is removed.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2 years agohw/nvme: mark nvme-subsys non-hotpluggable
Klaus Jensen [Tue, 6 Jul 2021 08:48:40 +0000 (10:48 +0200)]
hw/nvme: mark nvme-subsys non-hotpluggable

We currently lack the infrastructure to handle subsystem hotplugging, so
disable it.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2 years agohw/nvme: remove NvmeCtrl parameter from ns setup/check functions
Klaus Jensen [Tue, 6 Jul 2021 07:10:56 +0000 (09:10 +0200)]
hw/nvme: remove NvmeCtrl parameter from ns setup/check functions

The nvme_ns_setup and nvme_ns_check_constraints should not depend on the
controller state. Refactor and remove it.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2 years agoMerge remote-tracking branch 'remotes/stefanha-gitlab/tags/block-pull-request' into...
Peter Maydell [Mon, 26 Jul 2021 18:19:36 +0000 (19:19 +0100)]
Merge remote-tracking branch 'remotes/stefanha-gitlab/tags/block-pull-request' into staging

Pull request

Phil's block/nvme.c ENOSPC fix for newer Linux kernels that return this errno.

# gpg: Signature made Mon 26 Jul 2021 09:53:01 BST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha-gitlab/tags/block-pull-request:
  block/nvme: Fix VFIO_MAP_DMA failed: No space left on device

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agotests/unit: Remove unused variable from test_io
Richard Henderson [Mon, 12 Jul 2021 20:26:21 +0000 (20:26 +0000)]
tests/unit: Remove unused variable from test_io

From clang-13:
tests/unit/test-iov.c:161:26: error: variable 't' set but not used \
    [-Werror,-Wunused-but-set-variable]

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 years agolinux-user/syscall: Remove unused variable from execve
Richard Henderson [Mon, 12 Jul 2021 20:18:46 +0000 (20:18 +0000)]
linux-user/syscall: Remove unused variable from execve

From clang-13:
linux-user/syscall.c:8503:17: error: variable 'total_size' set but not used \
    [-Werror,-Wunused-but-set-variable]

Acked-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 years agohw/pci-hist/pnv_phb4: Fix typo in pnv_phb4_ioda_write
Richard Henderson [Mon, 12 Jul 2021 20:04:37 +0000 (20:04 +0000)]
hw/pci-hist/pnv_phb4: Fix typo in pnv_phb4_ioda_write

From clang-13:
hw/pci-host/pnv_phb4.c:375:18: error: variable 'v' set but not used \
    [-Werror,-Wunused-but-set-variable]

It's pretty clear that we meant to write back 'v' after
all that computation and not 'val'.

Acked-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 years agohw/ppc/spapr_events: Remove unused variable from check_exception
Richard Henderson [Mon, 12 Jul 2021 20:00:18 +0000 (20:00 +0000)]
hw/ppc/spapr_events: Remove unused variable from check_exception

From clang-13:
hw/ppc/spapr_events.c:937:14: error: variable 'xinfo' set but not used \
    [-Werror,-Wunused-but-set-variable]

Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 years agohw/audio/adlib: Remove unused variable in adlib_callback
Richard Henderson [Mon, 12 Jul 2021 19:57:41 +0000 (19:57 +0000)]
hw/audio/adlib: Remove unused variable in adlib_callback

From clang-13:
hw/audio/adlib.c:189:18: error: variable 'net' set but not used \
    [-Werror,-Wunused-but-set-variable]

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 years agonet/checksum: Remove unused variable in net_checksum_add_iov
Richard Henderson [Mon, 12 Jul 2021 18:43:58 +0000 (18:43 +0000)]
net/checksum: Remove unused variable in net_checksum_add_iov

From clang-13:
../qemu/net/checksum.c:189:23: error: variable 'buf_off' set but not used \
    [-Werror,-Wunused-but-set-variable]

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 years agoutil/selfmap: Discard mapping on error
Richard Henderson [Mon, 12 Jul 2021 18:39:06 +0000 (18:39 +0000)]
util/selfmap: Discard mapping on error

From clang-13:
util/selfmap.c:26:21: error: variable 'errors' set but not used \
    [-Werror,-Wunused-but-set-variable]

Quite right of course, but there's no reason not to check errors.

First, incrementing errors is incorrect, because qemu_strtoul
returns an errno not a count -- just or them together so that
we have a non-zero value at the end.

Second, if we have an error, do not add the struct to the list,
but free it instead.

Cc: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 years agoaccel/tcg: Remove unused variable in cpu_exec
Richard Henderson [Mon, 12 Jul 2021 18:29:34 +0000 (18:29 +0000)]
accel/tcg: Remove unused variable in cpu_exec

From clang-13:
accel/tcg/cpu-exec.c:783:15: error: variable 'cc' set but not used \
    [-Werror,-Wunused-but-set-variable]

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 years agonbd/server: Mark variable unused in nbd_negotiate_meta_queries
Richard Henderson [Tue, 13 Jul 2021 13:58:41 +0000 (13:58 +0000)]
nbd/server: Mark variable unused in nbd_negotiate_meta_queries

From clang-13:
nbd/server.c:976:22: error: variable 'bitmaps' set but not used \
    [-Werror,-Wunused-but-set-variable]

which is incorrect; see //bugs.llvm.org/show_bug.cgi?id=3888.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 years agobitops.h: revert db1ffc32dd ("qemu/bitops.h: add bitrev8 implementation")
Mark Cave-Ayland [Sun, 25 Jul 2021 11:05:57 +0000 (12:05 +0100)]
bitops.h: revert db1ffc32dd ("qemu/bitops.h: add bitrev8 implementation")

Commit db1ffc32dd ("qemu/bitops.h: add bitrev8 implementation") introduced
a bitrev8() function to reverse the bit ordering required for storing the
MAC address in the q800 PROM.

This function is not required since QEMU implements its own revbit8()
function which does exactly the same thing. Remove the extraneous
bitrev8() function and switch its only caller in hw/m68k/q800.c to
use revbit8() instead.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210725110557.3007-1-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 years agoaccel/tcg: Remove unnecessary check on icount_extra in cpu_loop_exec_tb()
Peter Maydell [Sun, 25 Jul 2021 17:44:05 +0000 (18:44 +0100)]
accel/tcg: Remove unnecessary check on icount_extra in cpu_loop_exec_tb()

In cpu_loop_exec_tb(), we decide whether to look for a TB with
exactly insns_left instructions in it using the condition
 (!cpu->icount_extra && insns_left > 0 && insns_left < tb->icount)

The check for icount_extra == 0 is unnecessary, because we just set
  insns_left = MIN(0xffff, cpu->icount_budget);
  icount_extra = icount_budget - insns_left;
and so icount_extra can only be non-zero if icount_budget > 0xffff
and insns_left == 0xffff. But in that case insns_left >= tb->icount
because 0xffff is much larger than TCG_MAX_INSNS, so the condition
will be false anyway.

Remove the unnecessary check, and instead assert:
 * that we are only going to execute a partial TB here if the
   icount budget has run out (ie icount_extra == 0)
 * that the number of insns we're going to execute does fit into
   the CF_COUNT_MASK

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210725174405.24568-3-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 years agoaccel/tcg: Don't use CF_COUNT_MASK as the max value of icount_decr.u16.low
Peter Maydell [Sun, 25 Jul 2021 17:44:04 +0000 (18:44 +0100)]
accel/tcg: Don't use CF_COUNT_MASK as the max value of icount_decr.u16.low

In cpu_loop_exec_tb() we were bounding the number of insns we might
try to execute in a TB using CF_COUNT_MASK.  This is incorrect,
because we can validly put up to 0xffff into icount_decr.u16.low.  In
particular, since commit 78ff82bb1b67c0d7 reduced CF_COUNT_MASK to
511 this meant that we would incorrectly only try to execute 511
instructions in a 512-instruction TB, which could result in QEMU
hanging when in icount mode.

Use the actual maximum value, which is 0xffff. (This brings this code
in to line with the similar logic in icount_prepare_for_run() in
tcg-accel-ops-icount.c.)

Fixes: 78ff82bb1b67c0d7
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>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/499
Message-Id: <20210725174405.24568-2-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/quic/tags/pull-hex-20210725' into staging
Peter Maydell [Mon, 26 Jul 2021 12:36:51 +0000 (13:36 +0100)]
Merge remote-tracking branch 'remotes/quic/tags/pull-hex-20210725' into staging

The Hexagon target was silently failing the SIGSEGV test because
the signal handler was not called.

Patch 1/2 fixes the Hexagon target
Patch 2/2 drops include qemu.h from target/hexagon/op_helper.c

**** Changes in v2 ****
Drop changes to linux-test.c due to intermittent failures on riscv

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* remotes/quic/tags/pull-hex-20210725:
  target/hexagon: Drop include of qemu.h
  Hexagon (target/hexagon) remove put_user_*/get_user_*

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agomigration: clear the memory region dirty bitmap when skipping free pages
Wei Wang [Thu, 22 Jul 2021 08:30:55 +0000 (04:30 -0400)]
migration: clear the memory region dirty bitmap when skipping free pages

When skipping free pages to send, their corresponding dirty bits in the
memory region dirty bitmap need to be cleared. Otherwise the skipped
pages will be sent in the next round after the migration thread syncs
dirty bits from the memory region dirty bitmap.

Cc: David Hildenbrand <david@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Reported-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Message-Id: <20210722083055.23352-1-wei.w.wang@intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2 years agomigration: Move the yank unregister of channel_close out
Peter Xu [Thu, 22 Jul 2021 17:58:41 +0000 (13:58 -0400)]
migration: Move the yank unregister of channel_close out

It's efficient, but hackish to call yank unregister calls in channel_close(),
especially it'll be hard to debug when qemu crashed with some yank function
leaked.

Remove that hack, but instead explicitly unregister yank functions at the
places where needed, they are:

  (on src)
  - migrate_fd_cleanup
  - postcopy_pause

  (on dst)
  - migration_incoming_state_destroy
  - postcopy_pause_incoming

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210722175841.938739-6-peterx@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2 years agomigration: Teach QEMUFile to be QIOChannel-aware
Peter Xu [Thu, 22 Jul 2021 17:58:40 +0000 (13:58 -0400)]
migration: Teach QEMUFile to be QIOChannel-aware

migration uses QIOChannel typed qemufiles.  In follow up patches, we'll need
the capability to identify this fact, so that we can get the backing QIOChannel
from a QEMUFile.

We can also define types for QEMUFile but so far since we only need to be able
to identify QIOChannel, introduce a boolean which is simpler.

Introduce another helper qemu_file_get_ioc() to return the ioc backend of a
qemufile if has_ioc is set.

No functional change.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210722175841.938739-5-peterx@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2 years agomigration: Introduce migration_ioc_[un]register_yank()
Peter Xu [Thu, 22 Jul 2021 17:58:39 +0000 (13:58 -0400)]
migration: Introduce migration_ioc_[un]register_yank()

There're plenty of places in migration/* that checks against either socket or
tls typed ioc for yank operations.  Provide two helpers to hide all these
information.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210722175841.938739-4-peterx@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2 years agomigration: Make from_dst_file accesses thread-safe
Peter Xu [Thu, 22 Jul 2021 17:58:38 +0000 (13:58 -0400)]
migration: Make from_dst_file accesses thread-safe

Accessing from_dst_file is potentially racy in current code base like below:

  if (s->from_dst_file)
    do_something(s->from_dst_file);

Because from_dst_file can be reset right after the check in another
thread (rp_thread).  One example is migrate_fd_cancel().

Use the same qemu_file_lock to protect it too, just like to_dst_file.

When it's safe to access without lock, comment it.

There's one special reference in migration_thread() that can be replaced by
the newly introduced rp_thread_created flag.

Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Message-Id: <20210722175841.938739-3-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  with Peter's fixup

2 years agomigration: Fix missing join() of rp_thread
Peter Xu [Thu, 22 Jul 2021 17:58:37 +0000 (13:58 -0400)]
migration: Fix missing join() of rp_thread

It's possible that the migration thread skip the join() of the rp_thread in
below race and crash on src right at finishing migration:

       migration_thread                     rp_thread
       ----------------                     ---------
    migration_completion()
                                        (before rp_thread quits)
                                        from_dst_file=NULL
                                        [thread got scheduled out]
      s->rp_state.from_dst_file==NULL
        (skip join() of rp_thread)
    migrate_fd_cleanup()
      qemu_fclose(s->to_dst_file)
      yank_unregister_instance()
        assert(yank_find_entry())  <------- crash

It could mostly happen with postcopy, but that shouldn't be required, e.g., I
think it could also trigger with MIGRATION_CAPABILITY_RETURN_PATH set.

It's suspected that above race could be the root cause of a recent (but rare)
migration-test break reported by either Dave or PMM:

https://lore.kernel.org/qemu-devel/YPamXAHwan%2FPPXLf@work-vm/

The issue is: from_dst_file is reset in the rp_thread, so if the thread reset
it to NULL fast enough then the migration thread will assume there's no
rp_thread at all.

This could potentially cause more severe issue (e.g. crash) after the yank code.

Fix it by using a boolean to keep "whether we've created rp_thread".

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210722175841.938739-2-peterx@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2 years agotests/qtest/migration-test.c: use 127.0.0.1 instead of 0
Dr. David Alan Gilbert [Mon, 19 Jul 2021 18:52:17 +0000 (19:52 +0100)]
tests/qtest/migration-test.c: use 127.0.0.1 instead of 0

OpenBSD doesn't like :0 as an address, switch to using 127.0.0.1
in baddest; it's really testing the :0 port number that isn't allowed
on anything.

(The test doesn't currently run anyway because of the userfault
problem that Peter noticed, but this gets us closer to being able to
reenable it)

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20210719185217.122105-1-dgilbert@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2 years agoMerge remote-tracking branch 'remotes/stsquad/tags/pull-for-6.1-rc1-230721-1' into...
Peter Maydell [Mon, 26 Jul 2021 10:00:14 +0000 (11:00 +0100)]
Merge remote-tracking branch 'remotes/stsquad/tags/pull-for-6.1-rc1-230721-1' into staging

Doc, metadata, plugin and testing updates for 6.1-rc1:

  - git ignore some file editor detritus
  - add overview on device emulation terminology
  - remove needless if leg in configure custom devices logic
  - numerous gitdm/mailmap updates
  - fix plugin_exit race for linux-user
  - fix a few bugs in cache modelling plugin
  - fix plugin calculation of physical address
  - handle pure assembler/linker tcg tests outside of docker
  - add tricore build to gitlab
  - remove superfluous MacOSX task
  - generalise the OpenBSI gitlab rules

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* remotes/stsquad/tags/pull-for-6.1-rc1-230721-1: (28 commits)
  gitlab-ci: Extract OpenSBI job rules to reusable section
  gitlab-ci: Remove the second superfluous macos task
  gitlab: enable a very minimal build with the tricore container
  tests/tcg/configure.sh: add handling for assembler only builds
  plugins: Fix physical address calculation for IO regions
  plugins/cache: Fixed "function decl. is not a prototype" warnings
  plugins/cache: limited the scope of a mutex lock
  plugins/cache: Fixed a bug with destroying FIFO metadata
  tcg/plugins: implement a qemu_plugin_user_exit helper
  contrib/gitdm: add more individual contributor entries.
  contrib/gitdm: add a new interns group-map for GSoC/Outreachy work
  contrib/gitdm: add an explicit academic entry for BU
  contrib/gitdm: add group-map for Netflix
  contrib/gitdm: add domain-map for NVIDIA
  contrib/gitdm: add domain-map for Crudebyte
  contrib/gitdm: un-ironically add a mapping for LWN
  contrib/gitdm: add domain-map/group-map for Wind River
  contrib/gitdm: add domain-map for Eldorado
  contrib/gitdm: add domain-map/group-map mappings for Samsung
  gitdm.config: sort the corporate GroupMap entries
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoblock/nvme: Fix VFIO_MAP_DMA failed: No space left on device
Philippe Mathieu-Daudé [Fri, 23 Jul 2021 19:58:43 +0000 (21:58 +0200)]
block/nvme: Fix VFIO_MAP_DMA failed: No space left on device

When the NVMe block driver was introduced (see commit bdd6a90a9e5,
January 2018), Linux VFIO_IOMMU_MAP_DMA ioctl was only returning
-ENOMEM in case of error. The driver was correctly handling the
error path to recycle its volatile IOVA mappings.

To fix CVE-2019-3882, Linux commit 492855939bdb ("vfio/type1: Limit
DMA mappings per container", April 2019) added the -ENOSPC error to
signal the user exhausted the DMA mappings available for a container.

The block driver started to mis-behave:

  qemu-system-x86_64: VFIO_MAP_DMA failed: No space left on device
  (qemu)
  (qemu) info status
  VM status: paused (io-error)
  (qemu) c
  VFIO_MAP_DMA failed: No space left on device
  (qemu) c
  VFIO_MAP_DMA failed: No space left on device

(The VM is not resumable from here, hence stuck.)

Fix by handling the new -ENOSPC error (when DMA mappings are
exhausted) without any distinction to the current -ENOMEM error,
so we don't change the behavior on old kernels where the CVE-2019-3882
fix is not present.

An easy way to reproduce this bug is to restrict the DMA mapping
limit (65535 by default) when loading the VFIO IOMMU module:

  # modprobe vfio_iommu_type1 dma_entry_limit=666

Cc: qemu-stable@nongnu.org
Cc: Fam Zheng <fam@euphon.net>
Cc: Maxim Levitsky <mlevitsk@redhat.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Reported-by: Michal Prívozník <mprivozn@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20210723195843.1032825-1-philmd@redhat.com
Fixes: bdd6a90a9e5 ("block: Add VFIO based NVMe driver")
Buglink: https://bugs.launchpad.net/qemu/+bug/1863333
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/65
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2 years agoui/gtk: add a keyboard fifo to the VTE consoles
Volker Rümelin [Sun, 25 Jul 2021 16:50:39 +0000 (18:50 +0200)]
ui/gtk: add a keyboard fifo to the VTE consoles

Since commit 8eb13bbbac ("ui/gtk: vte: fix sending multiple
characeters") it's very easy to lock up QEMU with the GTK ui.
If you configure a guest with a serial device and the guest
doesn't listen on this device, QEMU will lock up after
entering two characters in the serial console. That's because
current code uses a busy loop for the chardev write retries
and the busy loop doesn't terminate in this case.

To fix this problem add a fifo to the VTE consoles and use the
chr_accept_input() callback function to write the remaining
characters in the queue to the chardev.

The fifo has a size of 4096 bytes, so one can copy and paste
a fairly large URL or file path.

Fixes: 8eb13bbbac ("ui/gtk: vte: fix sending multiple characeters")
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <20210725165039.5242-1-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agoui: update keycodemapdb submodule commit
Akihiko Odaki [Mon, 5 Jul 2021 07:59:12 +0000 (16:59 +0900)]
ui: update keycodemapdb submodule commit

The change of ui/keycodemapdb effective on QEMU is only commit
d21009b1c9f94b740ea66be8e48a1d8ad8124023, which adds mappings for key
codes added in commit d7696ff884e35c6dacf83a7cbe3355e3b0a90125.

d21009b1c9f94b740ea66be8e48a1d8ad8124023 Add QEMU QKeyCode "lang1" and "lang2"
320f92c36a80bfafc5d57834592a7be5fd79f104 rust: fix cargo clippy
e62d42f0fd76f7bb8bf78385a83c060e66ff52b0 tests: add rust test
3e25e1ca1772fc3f2039f739f8f920450dc68e50 gen: add --lang rust
9133a0b8022d1fb063a81cc2ba3b627c14ccdfd1 tests: fix argument order

Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210705075912.2280-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agoui/cocoa: Fix the type of main's argv
Akihiko Odaki [Thu, 8 Jul 2021 16:56:19 +0000 (01:56 +0900)]
ui/cocoa: Fix the type of main's argv

Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210708165619.29299-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agoui/egl-headless: Remove a check for CONFIG_OPENGL
Akihiko Odaki [Wed, 14 Jul 2021 05:56:46 +0000 (14:56 +0900)]
ui/egl-headless: Remove a check for CONFIG_OPENGL

ui/egl-headless is only built when CONFIG_OPENGL is defined because it
depends on CONFIG_OPENGL without condition. Remove a redundant
conditonal in ui/egl-headless.c

Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210714055646.85952-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agoui/spice: Use HAVE_SPICE_GL for OpenGL checks
Akihiko Odaki [Wed, 14 Jul 2021 05:57:35 +0000 (14:57 +0900)]
ui/spice: Use HAVE_SPICE_GL for OpenGL checks

Some code in ui/spice used CONFIG_OPENGL for OpenGL conditionals, but
SPICE also depends on CONFIG_GBM and SPICE server whose version is
0.13.1 or later for OpenGL. Always use HAVE_SPICE_GL, which defines the
precise condition.

Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210714055735.86050-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agoui/gtk: Fix relative mouse with multiple monitors
Dennis Wölfing [Tue, 20 Jul 2021 14:39:41 +0000 (16:39 +0200)]
ui/gtk: Fix relative mouse with multiple monitors

To handle relative mouse input the event handler needs to move the mouse
away from the screen edges. Failing to do so results in the mouse
getting stuck at invisible walls. However the current implementation for
this is broken on hosts with multiple monitors.

With multiple monitors the mouse can be located outside of the current
monitor which is not handled by the current code. Also the monitor
itself might be located at coordinates different from (0, 0).

Signed-off-by: Dennis Wölfing <denniswoelfing@gmx.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210720143940.291413-1-denniswoelfing@gmx.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2 years agoMerge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging
Peter Maydell [Sat, 24 Jul 2021 10:04:57 +0000 (11:04 +0100)]
Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging

Bugfixes.

# gpg: Signature made Sat 24 Jul 2021 07:11:18 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini-gitlab/tags/for-upstream:
  qom: use correct field name when getting/setting alias properties
  qapi: introduce forwarding visitor
  gitlab: only let pages be published from default branch
  MAINTAINERS: Add memory_mapping.h and memory_mapping.c to "Memory API"
  MAINTAINERS: Add Peter Xu and myself as co-maintainer of "Memory API"
  MAINTAINERS: Replace Eduardo as "Host Memory Backends" maintainer
  i386: do not call cpudef-only models functions for max, host, base
  target/i386: Added consistency checks for CR3
  meson: fix dependencies for modinfo #2

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agogitlab-ci: Extract OpenSBI job rules to reusable section
Philippe Mathieu-Daudé [Tue, 20 Jul 2021 23:27:03 +0000 (00:27 +0100)]
gitlab-ci: Extract OpenSBI job rules to reusable section

All jobs depending on 'docker-opensbi' job must use at most all
the rules that triggers it. The simplest way to ensure that
is to always use the same rules. Extract all the rules to a
reusable section, and include this section (with the 'extends'
keyword) in both 'docker-opensbi' and 'build-opensbi' jobs.

The problem was introduced in commit c6fc0fc1a71 ("gitlab-ci.yml:
Add jobs to build OpenSBI firmware binaries"), but was revealed in
commit 91e9c47e50a ("docker: OpenSBI build job depends on OpenSBI
container").

This fix is similar to the one used with the EDK2 firmware job in
commit ac0595cf6b3 ("gitlab-ci: Extract EDK2 job rules to reusable
section").

Reported-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Message-Id: <20210720164829.3949558-1-philmd@redhat.com>
Message-Id: <20210720232703.10650-30-alex.bennee@linaro.org>

2 years agogitlab-ci: Remove the second superfluous macos task
Thomas Huth [Tue, 20 Jul 2021 23:27:02 +0000 (00:27 +0100)]
gitlab-ci: Remove the second superfluous macos task

While there might have been bigger differnces between the -base and
the -xcode images in the beginning, they almost vanished in the
current builds, e.g. when comparing the output of the "configure"
step after cleaning up the differences due to temporary path names,
I only get:

  $ diff -u /tmp/base.txt /tmp/xcode.txt
  --- /tmp/base.txt 2021-07-16 09:16:24.211427940 +0200
  +++ /tmp/xcode.txt 2021-07-16 09:16:43.029684274 +0200
  @@ -19,14 +19,14 @@
   Build type: native build
   Project name: qemu
   Project version: 6.0.50
  -C compiler for the host machine: cc (clang 12.0.0 "Apple clang version 12.0.0 (clang-1200.0.32.29)")
  +C compiler for the host machine: cc (clang 12.0.0 "Apple clang version 12.0.0 (clang-1200.0.32.28)")
   C linker for the host machine: cc ld64 609.8
   Host machine cpu family: x86_64
   Host machine cpu: x86_64
   Program sh found: YES (/bin/sh)
   Program python3 found: YES (/usr/local/opt/python@3.9/bin/python3.9)
   Program bzip2 found: YES (/usr/bin/bzip2)
  -C++ compiler for the host machine: c++ (clang 12.0.0 "Apple clang version 12.0.0 (clang-1200.0.32.29)")
  +C++ compiler for the host machine: c++ (clang 12.0.0 "Apple clang version 12.0.0 (clang-1200.0.32.28)")
   C++ linker for the host machine: c++ ld64 609.8
   Objective-C compiler for the host machine: clang (clang 12.0.0)
   Objective-C linker for the host machine: clang ld64 609.8

Since we're not using Xcode itself at all, it seems like it does not
make much sense anymore to waste compute cycles with two images here.
Thus let's delete the -xcode job now.

[AJB: fix up commit formatting which trips up b4]

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210719073051.1559348-1-thuth@redhat.com>
Message-Id: <20210720232703.10650-29-alex.bennee@linaro.org>

2 years agogitlab: enable a very minimal build with the tricore container
Alex Bennée [Tue, 20 Jul 2021 23:27:01 +0000 (00:27 +0100)]
gitlab: enable a very minimal build with the tricore container

Rather than base of the shared Debian 10 container which would require
us to bring in even more dependencies just bring in what is needed for
building tricore-softmmu in GitLab. We don't even remove the container
from the DOCKER_PARTIAL_IMAGES lest we cause more confusion.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Message-Id: <20210720232703.10650-28-alex.bennee@linaro.org>

2 years agotests/tcg/configure.sh: add handling for assembler only builds
Alex Bennée [Tue, 20 Jul 2021 23:27:00 +0000 (00:27 +0100)]
tests/tcg/configure.sh: add handling for assembler only builds

Up until this point we only handled local compilers or assumed we had
everything in the container. This falls down when we are building QEMU
inside the container.

This special handling only affects tricore for now but I put it in a
case just in case we add any other "special" targets. Setting
CROSS_CC_GUEST is a bit of a hack just to ensure the test runs as we
gate on a detected compiler even though the Makefile won't actually
use it. It also means we display something sane in the configure
output.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210720232703.10650-27-alex.bennee@linaro.org>

2 years agoplugins: Fix physical address calculation for IO regions
Aaron Lindsay [Tue, 20 Jul 2021 23:26:58 +0000 (00:26 +0100)]
plugins: Fix physical address calculation for IO regions

The address calculation for IO regions introduced by

commit 787148bf928a54b5cc86f5b434f9399e9737679c
Author: Aaron Lindsay <aaron@os.amperecomputing.com>
    plugins: Expose physical addresses instead of device offsets

is not always accurate. Use the more correct
MemoryRegionSection.offset_within_address_space.

Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210720195735.3934473-1-aaron@os.amperecomputing.com>
Message-Id: <20210720232703.10650-25-alex.bennee@linaro.org>