diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2023-06-17 01:13:34 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2023-06-29 10:49:43 +0200 |
| commit | 9fb4f5f5a1fd7619e221fd5068003c5b491b2bf0 (patch) | |
| tree | 04c075ed2a6b7b2318b25289bf794288fdde5f54 /target/i386 | |
| parent | 5bef742cc4f0e21c80a31611af7881ba811e507f (diff) | |
target/i386: ignore ARCH_CAPABILITIES features in user mode emulation
ARCH_CAPABILITIES is only accessible through a read-only MSR, so it has
no impact on any user-mode operation (user-mode cannot read the MSR).
So do not bother printing warnings about it in user mode emulation.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386')
| -rw-r--r-- | target/i386/cpu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index b96a609d96..328779874f 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1069,6 +1069,13 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .msr = { .index = MSR_IA32_ARCH_CAPABILITIES, }, + /* + * FEAT_ARCH_CAPABILITIES only affects a read-only MSR, which + * cannot be read from user mode. Therefore, it has no impact + > on any user-mode operation, and warnings about unsupported + * features do not matter. + */ + .tcg_features = ~0U, }, [FEAT_CORE_CAPABILITY] = { .type = MSR_FEATURE_WORD, |