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| author | Oliver Upton <oupton@google.com> | 2020-10-27 16:10:41 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-11-08 04:41:29 -0500 |
| commit | 1930e5ddcead2c23567131e62c86b15efce054be (patch) | |
| tree | 954daddba1b077e9b5162462926e964019227d23 /arch/x86/kvm/cpuid.c | |
| parent | cc4cb017678aa66d3fb4501b2f7424ed28fc7f4d (diff) | |
| download | lwn-1930e5ddcead2c23567131e62c86b15efce054be.tar.gz lwn-1930e5ddcead2c23567131e62c86b15efce054be.zip | |
kvm: x86: reads of restricted pv msrs should also result in #GP
commit 66570e966dd9 ("kvm: x86: only provide PV features if enabled in
guest's CPUID") only protects against disallowed guest writes to KVM
paravirtual msrs, leaving msr reads unchecked. Fix this by enforcing
KVM_CPUID_FEATURES for msr reads as well.
Fixes: 66570e966dd9 ("kvm: x86: only provide PV features if enabled in guest's CPUID")
Signed-off-by: Oliver Upton <oupton@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Message-Id: <20201027231044.655110-4-oupton@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/cpuid.c')
0 files changed, 0 insertions, 0 deletions