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OpenCloudOS-Kernel
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KVM: VMX: Intercept RDPMC 

Intercept RDPMC and forward it to the PMU emulation code.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2011-11-10 14:57:25 +02:00
parent 332b56e484
commit fee84b079d
1 changed files with 14 additions and 1 deletions
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15
arch/x86/kvm/vmx.c
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@ -1956,6 +1956,7 @@ static __init void nested_vmx_setup_ctls_msrs(void)
#endif
CPU_BASED_MOV_DR_EXITING | CPU_BASED_UNCOND_IO_EXITING |
CPU_BASED_USE_IO_BITMAPS | CPU_BASED_MONITOR_EXITING |
CPU_BASED_RDPMC_EXITING |
CPU_BASED_ACTIVATE_SECONDARY_CONTROLS;
/*
* We can allow some features even when not supported by the
@ -2410,7 +2411,8 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
CPU_BASED_USE_TSC_OFFSETING |
CPU_BASED_MWAIT_EXITING |
CPU_BASED_MONITOR_EXITING |
CPU_BASED_INVLPG_EXITING;
CPU_BASED_INVLPG_EXITING |
CPU_BASED_RDPMC_EXITING;
if (yield_on_hlt)
min |= CPU_BASED_HLT_EXITING;
@ -4613,6 +4615,16 @@ static int handle_invlpg(struct kvm_vcpu *vcpu)
return 1;
}
static int handle_rdpmc(struct kvm_vcpu *vcpu)
{
int err;
err = kvm_rdpmc(vcpu);
kvm_complete_insn_gp(vcpu, err);
return 1;
}
static int handle_wbinvd(struct kvm_vcpu *vcpu)
{
skip_emulated_instruction(vcpu);
@ -5563,6 +5575,7 @@ static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = {
[EXIT_REASON_HLT] = handle_halt,
[EXIT_REASON_INVD] = handle_invd,
[EXIT_REASON_INVLPG] = handle_invlpg,
[EXIT_REASON_RDPMC] = handle_rdpmc,
[EXIT_REASON_VMCALL] = handle_vmcall,
[EXIT_REASON_VMCLEAR] = handle_vmclear,
[EXIT_REASON_VMLAUNCH] = handle_vmlaunch,