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We do our best to keep copyright headers up to date, yet
git history provides better information on this subject
and is more accurate than copyright headers.
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* tests/ioctl_kvm_run_common.c: Rename from ioctl_kvm_run.c.
(run_kvm): Parametrize printing of KVM_RUN ioctl with print_KVM_RUN
invocation.
(main): Invoke optional KVM_NO_CPUID_CALLBACK macro when the old kernel
behavior is detected.
* tests/Makefile.am (EXTRA_DIST): Add ioctl_kvm_run_common.c.
* tests/ioctl_kvm_run.c: New file, a wrapper around
ioctl_kvm_run_common.c.
* ioctl_kvm_run_auxstr_vcpu.c: Likewise.
* tests/gen_tests.in (ioctl_kvm_run_auxstr_vcpu): New test.
* tests/pure_executables.list: Add ioctl_kvm_run_auxstr_vcpu.
* tests/.gitignore: Likewise.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
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* tests/ioctl_kvm_run-v.c: New file.
* tests/ioctl_kvm_run.c: Include xlat.h and xlat/kvm_cpuid_flags.h.
(print_kvm_segment, print_kvm_sregs, print_kvm_regs): New functions.
(run_kvm): Use them.
(print_cpuid_ioctl) [VERBOSE]: Print verbose ioctl decoding.
* tests/gen_tests.in (ioctl_kvm_run-v): New entry.
* tests/pure_executables.list: Add ioctl_kvm_run-v.
* tests/.gitignore: Likewise.
Signed-off-by: Pierre Marsais <pierre.marsais@lse.epita.fr>
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* tests/ioctl_kvm_run.c [!HAVE_STRUCT_KVM_CPUID2]: Skip the test.
(KVM_MAX_CPUID_ENTRIES): New macro.
(print_cpuid_ioctl): New function.
(main): Add tests for cpuid related ioctl.
Signed-off-by: Pierre Marsais <pierre.marsais@lse.epita.fr>
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Since Linux 4.16, kernel appends the cpuid as suffix to the entry
for a kvm vcpu in /proc/$pid/fd like:
anon_inode:kvm-vcpu:0
That was
anon_inode:kvm-vcpu
This kernel change causes the test case failure on newer kernels.
Update the test to deal with the new name as well as the old one.
* tests/ioctl_kvm_run.c: Include unistd.h for using readlink(2).
(vcpu_dev_should_have_cpuid): New function for detecting whether
a proc entry for given fd has the cpuid suffix or not.
(main): Trim vcpu_dev to remove the cpuid suffix if needed.
(vcpu_dev): Remove const modifier.
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Headers updated automatically using maint/update_copyright_years.sh
script.
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When built with -O0, gcc (rightfully) generates function prologue, which
results in writing %rbp to the stack, causing premature KVM_EXIT_MMIO.
It could be possible to avoid such problems by "naked" attribute but,
unfortunately, the latter is not available on x86 with older GCC.
A trick suggested in [1] is used instead: assembly is moved
to the global scope.
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50242#c3
* tests/ioctl_kvm_run.c (code): Remove function.
Add globally scoped __asm__ with the function code and its size.
(code, code_size): New extern symbols declarations.
(run_kvm): Remove code_size definition and initialization.
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
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As it has proven itself useful.
* tests/ioctl_kvm_run.c (run_kvm) <case KVM_EXIT_MMIO:>: Fail
on unexpected KVM_EXIT_MMIO, providing relevant diagnostics.
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* tests/ioctl_kvm_run.c: New file.
* tests/ioctl_kvm_run.test: New test.
* tests/Makefile.am (DECODER_TESTS): Add ioctl_kvm_run.test.
* tests/pure_executables.list: Add ioctl_kvm_run.
* tests/.gitignore: Likewise.
Co-authored-by: Dmitry V. Levin <ldv@altlinux.org>
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