@@ -987,7 +987,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
NULL, NULL, NULL, NULL,
"avx512-vp2intersect", NULL, "md-clear", NULL,
NULL, NULL, "serialize", NULL,
- NULL, NULL, NULL /* pconfig */, NULL,
+ "tsx-ldtrk", NULL, NULL /* pconfig */, NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, "spec-ctrl", "stibp",
NULL, "arch-capabilities", "core-capability", "ssbd",
@@ -779,6 +779,8 @@ typedef uint64_t FeatureWordArray[FEATURE_WORDS];
#define CPUID_7_0_EDX_AVX512_VP2INTERSECT (1U << 8)
/* SERIALIZE instruction */
#define CPUID_7_0_EDX_SERIALIZE (1U << 14)
+/* TSX Suspend Load Address Tracking instruction */
+#define CPUID_7_0_EDX_TSX_LDTRK (1U << 16)
/* Speculation Control */
#define CPUID_7_0_EDX_SPEC_CTRL (1U << 26)
/* Single Thread Indirect Branch Predictors */
This instruction aims to give a way to choose which memory accesses do not need to be tracked in the TSX read set, which is defined as CPUID.(EAX=7,ECX=0):EDX[bit 16]. The release spec link is as follows: https://software.intel.com/content/dam/develop/public/us/en/documents/\ architecture-instruction-set-extensions-programming-reference.pdf The associated kvm patch link is as follows: https://lore.kernel.org/patchwork/patch/1268026/ Signed-off-by: Cathy Zhang <cathy.zhang@intel.com> --- target/i386/cpu.c | 2 +- target/i386/cpu.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-)