diff options
| author | Vitaly Kuznetsov | 2021-02-01 15:28:43 +0100 |
|---|---|---|
| committer | Paolo Bonzini | 2021-02-01 12:43:02 -0500 |
| commit | 4683d758f48e6ae87d3d3493ffa00aceb955ee16 (patch) | |
| tree | d42c76d5bd14b6e012ec21f00d660acc663b7499 /tools | |
| parent | b66f9bab1279c281c83dea077c5e808527e3ef69 (diff) | |
KVM: x86: Supplement __cr4_reserved_bits() with X86_FEATURE_PCID check
Commit 7a873e455567 ("KVM: selftests: Verify supported CR4 bits can be set
before KVM_SET_CPUID2") reveals that KVM allows to set X86_CR4_PCIDE even
when PCID support is missing:
==== Test Assertion Failure ====
x86_64/set_sregs_test.c:41: rc
pid=6956 tid=6956 - Invalid argument
1 0x000000000040177d: test_cr4_feature_bit at set_sregs_test.c:41
2 0x00000000004014fc: main at set_sregs_test.c:119
3 0x00007f2d9346d041: ?? ??:0
4 0x000000000040164d: _start at ??:?
KVM allowed unsupported CR4 bit (0x20000)
Add X86_FEATURE_PCID feature check to __cr4_reserved_bits() to make
kvm_is_valid_cr4() fail.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20210201142843.108190-1-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions