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[PULL v4 16/43] i386: Add SGX CPUID leaf FEAT_SGX_12_0_EBX
From: |
Paolo Bonzini |
Subject: |
[PULL v4 16/43] i386: Add SGX CPUID leaf FEAT_SGX_12_0_EBX |
Date: |
Wed, 8 Sep 2021 12:03:59 +0200 |
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>
Message-Id: <20210719112136.57018-9-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.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 2cd1487bae..c0d5c3c621 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -655,6 +655,7 @@ 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] = {
@@ -1202,6 +1203,26 @@ 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 959f679077..cf52f70575 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -579,6 +579,7 @@ 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;
--
2.31.1
- [PULL v4 29/43] q35: Add support for SGX EPC, (continued)
- [PULL v4 29/43] q35: Add support for SGX EPC, Paolo Bonzini, 2021/09/08
- [PULL v4 31/43] hostmem-epc: Add the reset interface for EPC backend reset, Paolo Bonzini, 2021/09/08
- [PULL v4 33/43] sgx-epc: Avoid bios reset during sgx epc initialization, Paolo Bonzini, 2021/09/08
- [PULL v4 37/43] docs: standardize book titles to === with overline, Paolo Bonzini, 2021/09/08
- [PULL v4 34/43] hostmem-epc: Make prealloc consistent with qemu cmdline during reset, Paolo Bonzini, 2021/09/08
- [PULL v4 35/43] Kconfig: Add CONFIG_SGX support, Paolo Bonzini, 2021/09/08
- [PULL v4 38/43] docs: standardize directory index to --- with overline, Paolo Bonzini, 2021/09/08
- [PULL v4 41/43] docs/system: Add SGX documentation to the system manual, Paolo Bonzini, 2021/09/08
- [PULL v4 16/43] i386: Add SGX CPUID leaf FEAT_SGX_12_0_EBX,
Paolo Bonzini <=
- [PULL v4 30/43] i440fx: Add support for SGX EPC, Paolo Bonzini, 2021/09/08
- [PULL v4 20/43] i386: Add feature control MSR dependency when SGX is enabled, Paolo Bonzini, 2021/09/08
- [PULL v4 42/43] meson.build: Do not look for VNC-related libraries if have_system is not set, Paolo Bonzini, 2021/09/08
- [PULL v4 43/43] ebpf: only include in system emulators, Paolo Bonzini, 2021/09/08
- Re: [PULL v4 00/43] (Mostly) x86 changes for 2021-09-06, Peter Maydell, 2021/09/09
- Re: [PULL v4 00/43] (Mostly) x86 changes for 2021-09-06, Peter Maydell, 2021/09/11