[PATCH 6/6] KVM: nVMX: support RDRAND and RDSEED exiting
From: Paolo Bonzini
Date: Thu Mar 30 2017 - 05:56:05 EST
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
---
arch/x86/include/asm/vmx.h | 2 ++
arch/x86/kvm/vmx.c | 5 +++++
2 files changed, 7 insertions(+)
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index dffe8d68fb27..35cd06f636ab 100644
--- 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 6aaecc78dd71..efc3a73c2109 100644
--- 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 |
@@ -8083,6 +8084,10 @@ 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:
--
1.8.3.1