linux.git/tools/testing/selftests/kvm/include, branch v5.17

selftests: kvm: move vm_xsave_req_perm call to amx_test

2022-01-26T17:45:20+00:00

There is no need for tests other than amx_test to enable dynamic xsave
states.  Remove the call to vm_xsave_req_perm from generic code,
and move it inside the test.  While at it, allow customizing the bit
that is requested, so that future tests can use it differently.

Signed-off-by: Paolo Bonzini

kvm: selftests: Do not indent with spaces

2022-01-19T18:34:30+00:00

Some indentation with spaces crept in, likely due to terminal-based
cut and paste.  Clean it up.

Signed-off-by: Paolo Bonzini

selftests: kvm/x86: Introduce x86_model()

2022-01-19T17:12:15+00:00

Extract the x86 model number from CPUID.01H:EAX.

Signed-off-by: Jim Mattson 
Signed-off-by: Paolo Bonzini 
Message-Id: <20220115052431.447232-6-jmattson@google.com>
Signed-off-by: Paolo Bonzini

selftests: kvm/x86: Export x86_family() for use outside of processor.c

2022-01-19T17:12:03+00:00

Move this static inline function to processor.h, so that it can be
used in individual tests, as needed.

Opportunistically replace the bare 'unsigned' with 'unsigned int.'

Signed-off-by: Jim Mattson 
Signed-off-by: Paolo Bonzini 
Message-Id: <20220115052431.447232-5-jmattson@google.com>
Signed-off-by: Paolo Bonzini

selftests: kvm/x86: Introduce is_amd_cpu()

2022-01-19T17:11:43+00:00

Replace the one ad hoc "AuthenticAMD" CPUID vendor string comparison
with a new function, is_amd_cpu().

Signed-off-by: Jim Mattson 
Signed-off-by: Paolo Bonzini 
Message-Id: <20220115052431.447232-4-jmattson@google.com>
Signed-off-by: Paolo Bonzini

KVM: selftests: Test KVM_SET_CPUID2 after KVM_RUN

2022-01-17T17:30:24+00:00

KVM forbids KVM_SET_CPUID2 after KVM_RUN was performed on a vCPU unless
the supplied CPUID data is equal to what was previously set. Test this.

Signed-off-by: Vitaly Kuznetsov 
Message-Id: <20220117150542.2176196-5-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini

selftest: kvm: Move struct kvm_x86_state to header

2022-01-14T18:44:44+00:00

Those changes can avoid dereferencing pointer compile issue
when amx_test.c reference state->xsave.

Move struct kvm_x86_state definition to processor.h.

Signed-off-by: Yang Zhong 
Message-Id: <20211223145322.2914028-3-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini

kvm: selftests: Add support for KVM_CAP_XSAVE2

2022-01-14T18:44:42+00:00

When KVM_CAP_XSAVE2 is supported, userspace is expected to allocate
buffer for KVM_GET_XSAVE2 and KVM_SET_XSAVE using the size returned
by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2).

Signed-off-by: Wei Wang 
Signed-off-by: Guang Zeng 
Signed-off-by: Jing Liu 
Signed-off-by: Yang Zhong 
Message-Id: <20220105123532.12586-20-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini

kvm: selftests: move ucall declarations into ucall_common.h

2022-01-07T18:25:33+00:00

Now that core kvm_util declarations have special home in
kvm_util_base.h, move ucall-related declarations out into a separate
header.

Signed-off-by: Michael Roth 
Message-Id: <20211210164620.11636-3-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini

kvm: selftests: move base kvm_util.h declarations to kvm_util_base.h

2022-01-07T18:25:33+00:00

Between helper macros and interfaces that will be introduced in
subsequent patches, much of kvm_util.h would end up being declarations
specific to ucall. Ideally these could be separated out into a separate
header since they are not strictly required for writing guest tests and
are mostly self-contained interfaces other than a reliance on a few
core declarations like struct kvm_vm. This doesn't make a big
difference as far as how tests will be compiled/written since all these
interfaces will still be packaged up into a single/common libkvm.a used
by all tests, but it is still nice to be able to compartmentalize to
improve readabilty and reduce merge conflicts in the future for common
tasks like adding new interfaces to kvm_util.h.

Furthermore, some of the ucall declarations will be arch-specific,
requiring various #ifdef'ery in kvm_util.h. Ideally these declarations
could live in separate arch-specific headers, e.g.
include//ucall.h, which would handle arch-specific declarations
as well as pulling in common ucall-related declarations shared by all
archs.

One simple way to do this would be to #include ucall.h at the bottom of
kvm_util.h, after declarations it relies upon like struct kvm_vm.
This is brittle however, and doesn't scale easily to other sets of
interfaces that may be added in the future.

Instead, move all declarations currently in kvm_util.h into
kvm_util_base.h, then have kvm_util.h #include it. With this change,
non-base declarations can be selectively moved/introduced into separate
headers, which can then be included in kvm_util.h so that individual
tests don't need to be touched. Subsequent patches will then move
ucall-related declarations into a separate header to meet the above
goals.

Signed-off-by: Michael Roth 
Message-Id: <20211210164620.11636-2-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini