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[PATCH v2 11/32] i386: Add feature control MSR dependency when SGX is en
From: |
Yang Zhong |
Subject: |
[PATCH v2 11/32] i386: Add feature control MSR dependency when SGX is enabled |
Date: |
Tue, 11 May 2021 14:20:30 +0800 |
From: Sean Christopherson <sean.j.christopherson@intel.com>
SGX adds multiple flags to FEATURE_CONTROL to enable SGX and Flexible
Launch Control.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
---
target/i386/kvm/kvm.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index 4463d638c4..fa495a6f9e 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -1789,6 +1789,11 @@ 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;
}
--
2.29.2.334.gfaefdd61ec
- [PATCH v2 00/32] Qemu SGX virtualization, Yang Zhong, 2021/05/11
- [PATCH v2 01/32] memory: Add RAM_PROTECTED flag to skip IOMMU mappings, Yang Zhong, 2021/05/11
- [PATCH v2 02/32] hostmem: Add hostmem-epc as a backend for SGX EPC, Yang Zhong, 2021/05/11
- [PATCH v2 04/32] i386: Add 'sgx-epc' device to expose EPC sections to guest, Yang Zhong, 2021/05/11
- [PATCH v2 03/32] qom: Add memory-backend-epc ObjectOptions support, Yang Zhong, 2021/05/11
- [PATCH v2 06/32] i386: Add primary SGX CPUID and MSR defines, Yang Zhong, 2021/05/11
- [PATCH v2 05/32] vl: Add "sgx-epc" option to expose SGX EPC sections to guest, Yang Zhong, 2021/05/11
- [PATCH v2 08/32] i386: Add SGX CPUID leaf FEAT_SGX_12_0_EBX, Yang Zhong, 2021/05/11
- [PATCH v2 07/32] i386: Add SGX CPUID leaf FEAT_SGX_12_0_EAX, Yang Zhong, 2021/05/11
- [PATCH v2 11/32] i386: Add feature control MSR dependency when SGX is enabled,
Yang Zhong <=
- [PATCH v2 09/32] i386: Add SGX CPUID leaf FEAT_SGX_12_1_EAX, Yang Zhong, 2021/05/11
- [PATCH v2 10/32] i386: Add get/set/migrate support for SGX_LEPUBKEYHASH MSRs, Yang Zhong, 2021/05/11
- [PATCH v2 12/32] i386: Update SGX CPUID info according to hardware/KVM/user input, Yang Zhong, 2021/05/11
- [PATCH v2 13/32] linux-headers: Add placeholder for KVM_CAP_SGX_ATTRIBUTE, Yang Zhong, 2021/05/11
- [PATCH v2 14/32] i386: kvm: Add support for exposing PROVISIONKEY to guest, Yang Zhong, 2021/05/11
- [PATCH v2 15/32] i386: Propagate SGX CPUID sub-leafs to KVM, Yang Zhong, 2021/05/11
- [PATCH v2 16/32] Adjust min CPUID level to 0x12 when SGX is enabled, Yang Zhong, 2021/05/11
- [PATCH v2 17/32] hw/i386/fw_cfg: Set SGX bits in feature control fw_cfg accordingly, Yang Zhong, 2021/05/11
- [PATCH v2 18/32] hw/i386/pc: Account for SGX EPC sections when calculating device memory, Yang Zhong, 2021/05/11
- [PATCH v2 19/32] i386/pc: Add e820 entry for SGX EPC section(s), Yang Zhong, 2021/05/11