diff options
| author | Avi Kivity <avi@redhat.com> | 2011-11-10 14:57:30 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-12-27 11:24:43 +0200 |
| commit | 222d21aa070a4885ce3c7125a1b7ce07429ea4a1 (patch) | |
| tree | dbbfa00ef566c75bf7e412a894745ee050b35b26 /arch/x86/kvm/emulate.c | |
| parent | 80bdec64c05b645708b0dd97919783ad077fcdc8 (diff) | |
KVM: x86 emulator: implement RDPMC (0F 33)
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/emulate.c')
| -rw-r--r-- | arch/x86/kvm/emulate.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index d270f1a817dc..05a562b85025 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -2645,6 +2645,17 @@ static int em_rdtsc(struct x86_emulate_ctxt *ctxt) return X86EMUL_CONTINUE; } +static int em_rdpmc(struct x86_emulate_ctxt *ctxt) +{ + u64 pmc; + + if (ctxt->ops->read_pmc(ctxt, ctxt->regs[VCPU_REGS_RCX], &pmc)) + return emulate_gp(ctxt, 0); + ctxt->regs[VCPU_REGS_RAX] = (u32)pmc; + ctxt->regs[VCPU_REGS_RDX] = pmc >> 32; + return X86EMUL_CONTINUE; +} + static int em_mov(struct x86_emulate_ctxt *ctxt) { ctxt->dst.val = ctxt->src.val; @@ -3411,7 +3422,7 @@ static struct opcode twobyte_table[256] = { II(ImplicitOps | Priv, em_wrmsr, wrmsr), IIP(ImplicitOps, em_rdtsc, rdtsc, check_rdtsc), II(ImplicitOps | Priv, em_rdmsr, rdmsr), - DIP(ImplicitOps, rdpmc, check_rdpmc), + IIP(ImplicitOps, em_rdpmc, rdpmc, check_rdpmc), I(ImplicitOps | VendorSpecific, em_sysenter), I(ImplicitOps | Priv | VendorSpecific, em_sysexit), N, N, |