KVM: nVMX: support RDRAND and RDSEED exiting

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>

diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index dffe8d6..35cd06f 100644 (file)
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -70,8 +70,10 @@
 #define SECONDARY_EXEC_APIC_REGISTER_VIRT       0x00000100
 #define SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY    0x00000200
 #define SECONDARY_EXEC_PAUSE_LOOP_EXITING      0x00000400
+#define SECONDARY_EXEC_RDRAND                  0x00000800
 #define SECONDARY_EXEC_ENABLE_INVPCID          0x00001000
 #define SECONDARY_EXEC_SHADOW_VMCS              0x00004000
+#define SECONDARY_EXEC_RDSEED                  0x00010000
 #define SECONDARY_EXEC_ENABLE_PML               0x00020000
 #define SECONDARY_EXEC_XSAVES                  0x00100000
 #define SECONDARY_EXEC_TSC_SCALING              0x02000000

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 5556cce..cfdb0d9 100644 (file)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2745,6 +2745,7 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
                vmx->nested.nested_vmx_secondary_ctls_high);
        vmx->nested.nested_vmx_secondary_ctls_low = 0;
        vmx->nested.nested_vmx_secondary_ctls_high &=
+               SECONDARY_EXEC_RDRAND | SECONDARY_EXEC_RDSEED |
                SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
                SECONDARY_EXEC_RDTSCP |
                SECONDARY_EXEC_DESC |
@@ -8082,6 +8083,10 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
                return nested_cpu_has(vmcs12, CPU_BASED_INVLPG_EXITING);
        case EXIT_REASON_RDPMC:
                return nested_cpu_has(vmcs12, CPU_BASED_RDPMC_EXITING);
+       case EXIT_REASON_RDRAND:
+               return nested_cpu_has2(vmcs12, SECONDARY_EXEC_RDRAND);
+       case EXIT_REASON_RDSEED:
+               return nested_cpu_has2(vmcs12, SECONDARY_EXEC_RDSEED);
        case EXIT_REASON_RDTSC: case EXIT_REASON_RDTSCP:
                return nested_cpu_has(vmcs12, CPU_BASED_RDTSC_EXITING);
        case EXIT_REASON_VMCALL: case EXIT_REASON_VMCLEAR: