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. Bugzilla: https://gitlab.com/qemu-project/qemu/-/issues/2442 Fixes: 0b2757412cb1 ("target/i386: drop AMD machine check bits from Intel CPUID") Signed-off-by: Xiong Zhang <xiong.y.zhang@xxxxxxxxxxxxxxx> --- target/i386/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 4688d140c2..ef06da54c6 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -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) { -- 2.40.1
