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Groups > linux.kernel > #1612819

[PATCH 6/6] KVM: nVMX: support RDRAND and RDSEED exiting

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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 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

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[PATCH v2 0/6] KVM: nVMX: nested EPT improvements and A/D bits, RDRAND and RDSEED exits Paolo Bonzini <pbonzini@redhat.com> - 2017-03-30 12:00 +0200
  [PATCH 2/6] KVM: VMX: remove bogus check for invalid EPT violation Paolo Bonzini <pbonzini@redhat.com> - 2017-03-30 12:00 +0200
    Re: [PATCH 2/6] KVM: VMX: remove bogus check for invalid EPT violation Jim Mattson <jmattson@google.com> - 2017-03-30 18:40 +0200
    Re: [PATCH 2/6] KVM: VMX: remove bogus check for invalid EPT  violation David Hildenbrand <david@redhat.com> - 2017-04-03 13:20 +0200
  [PATCH 4/6] kvm: nVMX: support EPT accessed/dirty bits Paolo Bonzini <pbonzini@redhat.com> - 2017-03-30 12:00 +0200
    Re: [PATCH 4/6] kvm: nVMX: support EPT accessed/dirty bits Paolo Bonzini <pbonzini@redhat.com> - 2017-03-31 18:30 +0200
    Re: [PATCH 4/6] kvm: nVMX: support EPT accessed/dirty bits Radim Krčmář <rkrcmar@redhat.com> - 2017-03-31 18:30 +0200
  [PATCH 5/6] KVM: VMX: add missing exit reasons Paolo Bonzini <pbonzini@redhat.com> - 2017-03-30 12:00 +0200
  [PATCH 6/6] KVM: nVMX: support RDRAND and RDSEED exiting Paolo Bonzini <pbonzini@redhat.com> - 2017-03-30 12:00 +0200
    Re: [PATCH 6/6] KVM: nVMX: support RDRAND and RDSEED exiting Jim Mattson <jmattson@google.com> - 2017-03-30 19:00 +0200
  [PATCH 3/6] kvm: x86: MMU support for EPT accessed/dirty bits Paolo Bonzini <pbonzini@redhat.com> - 2017-03-30 12:00 +0200
    Re: [PATCH 3/6] kvm: x86: MMU support for EPT accessed/dirty bits Radim Krčmář <rkrcmar@redhat.com> - 2017-03-31 16:00 +0200
  Re: [PATCH v2 0/6] KVM: nVMX: nested EPT improvements and A/D bits,  RDRAND and RDSEED exits Paolo Bonzini <pbonzini@redhat.com> - 2017-03-31 13:20 +0200

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