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[PATCH v4 08/33] i386: Add SGX CPUID leaf FEAT_SGX_12_0_EBX
From: |
Yang Zhong |
Subject: |
[PATCH v4 08/33] i386: Add SGX CPUID leaf FEAT_SGX_12_0_EBX |
Date: |
Mon, 19 Jul 2021 19:21:11 +0800 |
From: Sean Christopherson <sean.j.christopherson@intel.com>
CPUID leaf 12_0_EBX is an Intel-defined feature bits leaf enumerating
the platform's SGX extended capabilities. Currently there is a single
capabilitiy:
- EXINFO: record information about #PFs and #GPs in the enclave's SSA
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
---
target/i386/cpu.c | 21 +++++++++++++++++++++
target/i386/cpu.h | 1 +
2 files changed, 22 insertions(+)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 13289e0547..0525a4cf7f 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -654,6 +654,7 @@ void x86_cpu_vendor_words2str(char *dst, uint32_t vendor1,
CPUID_XSAVE_XSAVEC, CPUID_XSAVE_XSAVES */
#define TCG_14_0_ECX_FEATURES 0
#define TCG_SGX_12_0_EAX_FEATURES 0
+#define TCG_SGX_12_0_EBX_FEATURES 0
FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
[FEAT_1_EDX] = {
@@ -1201,6 +1202,26 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
},
.tcg_features = TCG_SGX_12_0_EAX_FEATURES,
},
+
+ [FEAT_SGX_12_0_EBX] = {
+ .type = CPUID_FEATURE_WORD,
+ .feat_names = {
+ "sgx-exinfo" , NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ },
+ .cpuid = {
+ .eax = 0x12,
+ .needs_ecx = true, .ecx = 0,
+ .reg = R_EBX,
+ },
+ .tcg_features = TCG_SGX_12_0_EBX_FEATURES,
+ },
};
typedef struct FeatureMask {
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 21830b2d79..a71d1c8fd0 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -562,6 +562,7 @@ typedef enum FeatureWord {
FEAT_VMX_VMFUNC,
FEAT_14_0_ECX,
FEAT_SGX_12_0_EAX, /* CPUID[EAX=0x12,ECX=0].EAX (SGX) */
+ FEAT_SGX_12_0_EBX, /* CPUID[EAX=0x12,ECX=0].EBX (SGX MISCSELECT[31:0]) */
FEATURE_WORDS,
} FeatureWord;
- [PATCH v4 00/33] Qemu SGX virtualization, Yang Zhong, 2021/07/19
- [PATCH v4 01/33] memory: Add RAM_PROTECTED flag to skip IOMMU mappings, Yang Zhong, 2021/07/19
- [PATCH v4 03/33] qom: Add memory-backend-epc ObjectOptions support, Yang Zhong, 2021/07/19
- [PATCH v4 02/33] hostmem: Add hostmem-epc as a backend for SGX EPC, Yang Zhong, 2021/07/19
- [PATCH v4 04/33] i386: Add 'sgx-epc' device to expose EPC sections to guest, Yang Zhong, 2021/07/19
- [PATCH v4 05/33] vl: Add sgx compound properties to expose SGX EPC sections to guest, Yang Zhong, 2021/07/19
- [PATCH v4 06/33] i386: Add primary SGX CPUID and MSR defines, Yang Zhong, 2021/07/19
- [PATCH v4 07/33] i386: Add SGX CPUID leaf FEAT_SGX_12_0_EAX, Yang Zhong, 2021/07/19
- [PATCH v4 08/33] i386: Add SGX CPUID leaf FEAT_SGX_12_0_EBX,
Yang Zhong <=
- [PATCH v4 09/33] i386: Add SGX CPUID leaf FEAT_SGX_12_1_EAX, Yang Zhong, 2021/07/19
- [PATCH v4 10/33] i386: Add get/set/migrate support for SGX_LEPUBKEYHASH MSRs, Yang Zhong, 2021/07/19
- [PATCH v4 11/33] i386: Add feature control MSR dependency when SGX is enabled, Yang Zhong, 2021/07/19
- [PATCH v4 12/33] i386: Update SGX CPUID info according to hardware/KVM/user input, Yang Zhong, 2021/07/19
- [PATCH v4 13/33] i386: kvm: Add support for exposing PROVISIONKEY to guest, Yang Zhong, 2021/07/19
- [PATCH v4 14/33] i386: Propagate SGX CPUID sub-leafs to KVM, Yang Zhong, 2021/07/19
- [PATCH v4 15/33] Adjust min CPUID level to 0x12 when SGX is enabled, Yang Zhong, 2021/07/19
- [PATCH v4 16/33] hw/i386/fw_cfg: Set SGX bits in feature control fw_cfg accordingly, Yang Zhong, 2021/07/19
- [PATCH v4 17/33] hw/i386/pc: Account for SGX EPC sections when calculating device memory, Yang Zhong, 2021/07/19
- [PATCH v4 18/33] i386/pc: Add e820 entry for SGX EPC section(s), Yang Zhong, 2021/07/19