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[Qemu-devel] [RFC PATCH 09/20] i386: Add feature control MSR dependency
From: |
Sean Christopherson |
Subject: |
[Qemu-devel] [RFC PATCH 09/20] i386: Add feature control MSR dependency when SGX is enabled |
Date: |
Tue, 6 Aug 2019 11:56:38 -0700 |
SGX adds multiple flags to FEATURE_CONTROL to enable SGX and Flexible
Launch Control.
Signed-off-by: Sean Christopherson <address@hidden>
---
target/i386/kvm.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 07565820bd..e40c4fd673 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -1657,6 +1657,11 @@ int kvm_arch_init_vcpu(CPUState *cs)
!!(c->ecx & CPUID_EXT_SMX);
}
+ c = cpuid_find_entry(&cpuid_data.cpuid, 7, 0);
+ if (c && (c->ebx & CPUID_7_0_EBX_SGX)) {
+ has_msr_feature_control = true;
+ }
+
if (env->mcg_cap & MCG_LMCE_P) {
has_msr_mcg_ext_ctl = has_msr_feature_control = true;
}
--
2.22.0
- [Qemu-devel] [RFC PATCH 00/20] i386: Add support for Intel SGX, Sean Christopherson, 2019/08/06
- [Qemu-devel] [RFC PATCH 08/20] i386: Add get/set/migrate support for SGX LE public key hash MSRs, Sean Christopherson, 2019/08/06
- [Qemu-devel] [RFC PATCH 01/20] hostmem: Add hostmem-epc as a backend for SGX EPC, Sean Christopherson, 2019/08/06
- [Qemu-devel] [RFC PATCH 09/20] i386: Add feature control MSR dependency when SGX is enabled,
Sean Christopherson <=
- [Qemu-devel] [RFC PATCH 05/20] i386: Add SGX CPUID leaf FEAT_SGX_12_0_EAX, Sean Christopherson, 2019/08/06
- [Qemu-devel] [RFC PATCH 04/20] i386: Add primary SGX CPUID and MSR defines, Sean Christopherson, 2019/08/06
- [Qemu-devel] [RFC PATCH 15/20] hw/i386/pc: Set SGX bits in feature control fw_cfg accordingly, Sean Christopherson, 2019/08/06
- [Qemu-devel] [RFC PATCH 17/20] i386/pc: Add e820 entry for SGX EPC section(s), Sean Christopherson, 2019/08/06
- [Qemu-devel] [RFC PATCH 10/20] i386: Update SGX CPUID info according to hardware/KVM/user input, Sean Christopherson, 2019/08/06
- [Qemu-devel] [RFC PATCH 14/20] i386: Adjust min CPUID level to 0x12 when SGX is enabled, Sean Christopherson, 2019/08/06
- [Qemu-devel] [RFC PATCH 06/20] i386: Add SGX CPUID leaf FEAT_SGX_12_1_EAX, Sean Christopherson, 2019/08/06
- [Qemu-devel] [RFC PATCH 12/20] i386: kvm: Add support for exposing PROVISIONKEY to guest, Sean Christopherson, 2019/08/06
- [Qemu-devel] [RFC PATCH 07/20] i386: Add SGX CPUID leaf FEAT_SGX_12_1_EBX, Sean Christopherson, 2019/08/06
- [Qemu-devel] [RFC PATCH 11/20] linux-headers: Add temporary placeholder for KVM_CAP_SGX_ATTRIBUTE, Sean Christopherson, 2019/08/06