Before enabling, execution of "rdtscp" in guest would result in #UD. Signed-off-by: Sheng Yang <sheng@xxxxxxxxxxxxxxx> --- arch/x86/include/asm/vmx.h | 1 + arch/x86/kvm/vmx.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletions(-) diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h index 2b49454..8c39320 100644 --- a/arch/x86/include/asm/vmx.h +++ b/arch/x86/include/asm/vmx.h @@ -53,6 +53,7 @@ */ #define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001 #define SECONDARY_EXEC_ENABLE_EPT 0x00000002 +#define SECONDARY_EXEC_RDTSCP 0x00000008 #define SECONDARY_EXEC_ENABLE_VPID 0x00000020 #define SECONDARY_EXEC_WBINVD_EXITING 0x00000040 #define SECONDARY_EXEC_UNRESTRICTED_GUEST 0x00000080 diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 9a0a2cf..e1a2ed2 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1243,7 +1243,8 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf) SECONDARY_EXEC_ENABLE_VPID | SECONDARY_EXEC_ENABLE_EPT | SECONDARY_EXEC_UNRESTRICTED_GUEST | - SECONDARY_EXEC_PAUSE_LOOP_EXITING; + SECONDARY_EXEC_PAUSE_LOOP_EXITING | + SECONDARY_EXEC_RDTSCP; if (adjust_vmx_controls(min2, opt2, MSR_IA32_VMX_PROCBASED_CTLS2, &_cpu_based_2nd_exec_control) < 0) -- 1.5.4.5 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
