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KVM: selftests: Drop manual CR4.OSXSAVE enabling from CR4/CPUID sync test

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Now that CR4.OSXSAVE is enabled by default, drop the manual enabling from
CR4/CPUID sync test and instead assert that CR4.OSXSAVE is enabled.

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20241003234337.273364-8-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Sean Christopherson 2024-10-03 16:43:33 -07:00
parent 8ae01bf64c
commit 3678c7f611
1 changed files with 2 additions and 5 deletions
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7
tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c
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@ -27,12 +27,9 @@ static void guest_code(void)
[KVM_CPUID_EAX] = X86_FEATURE_OSXSAVE.function,
[KVM_CPUID_ECX] = X86_FEATURE_OSXSAVE.index,
};
uint64_t cr4;
/* turn on CR4.OSXSAVE */
cr4 = get_cr4();
cr4 |= X86_CR4_OSXSAVE;
set_cr4(cr4);
/* CR4.OSXSAVE should be enabled by default (for selftests vCPUs). */
GUEST_ASSERT(get_cr4() & X86_CR4_OSXSAVE);
/* verify CR4.OSXSAVE == CPUID.OSXSAVE */
GUEST_ASSERT(this_cpu_has(X86_FEATURE_OSXSAVE));