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| author | Kai Huang <kai.huang@intel.com> | 2022-11-09 15:48:34 +1300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2023-01-06 00:51:02 +0100 |
| commit | d45f24fe7525d8a8aaa4ca6d9d214dc41819caa5 (patch) | |
| tree | 767b3ab1bc738eb277fc064d29955eaa8ead23f7 /target/i386 | |
| parent | 6f9f630836df355b9ca3f4641e6b7be71f6af076 (diff) | |
| download | qemu-d45f24fe7525d8a8aaa4ca6d9d214dc41819caa5.zip qemu-d45f24fe7525d8a8aaa4ca6d9d214dc41819caa5.tar.gz qemu-d45f24fe7525d8a8aaa4ca6d9d214dc41819caa5.tar.bz2 | |
target/i386: Add SGX aex-notify and EDECCSSA support
The new SGX Asynchronous Exit (AEX) notification mechanism (AEX-notify)
allows one enclave to receive a notification in the ERESUME after the
enclave exit due to an AEX. EDECCSSA is a new SGX user leaf function
(ENCLU[EDECCSSA]) to facilitate the AEX notification handling.
Whether the hardware supports to create enclave with AEX-notify support
is enumerated via CPUID.(EAX=0x12,ECX=0x1):EAX[10]. The new EDECCSSA
user leaf function is enumerated via CPUID.(EAX=0x12,ECX=0x0):EAX[11].
Add support to allow to expose the new SGX AEX-notify feature and the
new EDECCSSA user leaf function to KVM guest.
Link: https://lore.kernel.org/lkml/166760360549.4906.809756297092548496.tip-bot2@tip-bot2/
Link: https://lore.kernel.org/lkml/166760360934.4906.2427175408052308969.tip-bot2@tip-bot2/
Reviewed-by: Yang Zhong <yang.zhong@linux.intel.com>
Signed-off-by: Kai Huang <kai.huang@intel.com>
Message-Id: <20221109024834.172705-1-kai.huang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386')
| -rw-r--r-- | target/i386/cpu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 3410e5e..4d2b8d0 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1233,7 +1233,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .feat_names = { "sgx1", "sgx2", NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, + NULL, NULL, NULL, "sgx-edeccssa", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, @@ -1273,7 +1273,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .feat_names = { NULL, "sgx-debug", "sgx-mode64", NULL, "sgx-provisionkey", "sgx-tokenkey", NULL, "sgx-kss", - NULL, NULL, NULL, NULL, + NULL, NULL, "sgx-aex-notify", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |