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target/i386: Change unavail from u32 to u64 

The feature word 'r' is a u64, and "unavail" is a u32, the operation
'r &= ~unavail' clears the high 32 bits of 'r'. This causes many vmx cases
in kvm-unit-tests to fail. Changing 'unavail' from u32 to u64 fixes this
issue.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2442
Fixes: 0b2757412c ("target/i386: drop AMD machine check bits from Intel CPUID")
Signed-off-by: Xiong Zhang <xiong.y.zhang@linux.intel.com>
Link: https://lore.kernel.org/r/20240730082927.250180-1-xiong.y.zhang@linux.intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Xiong Zhang 2024-07-30 16:29:27 +08:00 committed by Paolo Bonzini
parent c4afcec90f
commit 39635ccd0b
1 changed files with 1 additions and 1 deletions
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2
target/i386/cpu.c
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@ -6039,7 +6039,7 @@ uint64_t x86_cpu_get_supported_feature_word(X86CPU *cpu, FeatureWord w)
{
FeatureWordInfo *wi = &feature_word_info[w];
uint64_t r = 0;
uint32_t unavail = 0;
uint64_t unavail = 0;
if (kvm_enabled()) {
switch (wi->type) {