Messages in this thread Patch in this message | | | From | Gleb Natapov <> | Subject | [PATCH 8/9] KVM: x86 emulator: fix RDPMC privilege check | Date | Thu, 3 Nov 2011 14:31:37 +0200 |
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From: Avi Kivity <avi@redhat.com>
RDPMC is only privileged if CR4.PCE=0. check_rdpmc() already implements this, so all we need to do is drop the Priv flag.
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com> --- arch/x86/kvm/emulate.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 8547958..c0ee85b 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -3254,7 +3254,7 @@ static struct opcode twobyte_table[256] = { DI(ImplicitOps | Priv, wrmsr), IIP(ImplicitOps, em_rdtsc, rdtsc, check_rdtsc), DI(ImplicitOps | Priv, rdmsr), - DIP(ImplicitOps | Priv, rdpmc, check_rdpmc), + DIP(ImplicitOps, rdpmc, check_rdpmc), I(ImplicitOps | VendorSpecific, em_sysenter), I(ImplicitOps | Priv | VendorSpecific, em_sysexit), N, N, -- 1.7.5.3
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