[v6,6/8] i386: Add RDT feature flags.

Commit Message

Hendrik Wuethrich Feb. 28, 2025, 8:04 p.m. UTC

Add RDT features to feature word / TCG.

Signed-off-by: Hendrik Wuethrich <[e-mail]>
---
 target/i386/cpu.c | 33 +++++++++++++++++++++++++++++++--
 target/i386/cpu.h |  2 ++
 2 files changed, 33 insertions(+), 2 deletions(-)

Patch

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index cd06744451..6262665294 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -868,7 +868,8 @@  void x86_cpu_vendor_words2str(char *dst, uint32_t vendor1,
           CPUID_7_0_EBX_CLFLUSHOPT |            \
           CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_FSGSBASE | \
           CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_AVX2 | CPUID_7_0_EBX_RDSEED | \
-          CPUID_7_0_EBX_SHA_NI | CPUID_7_0_EBX_KERNEL_FEATURES)
+          CPUID_7_0_EBX_SHA_NI | CPUID_7_0_EBX_KERNEL_FEATURES | \
+          CPUID_7_0_EBX_PQM | CPUID_7_0_EBX_PQE)
           /* missing:
           CPUID_7_0_EBX_HLE
           CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM */
@@ -905,6 +906,9 @@  void x86_cpu_vendor_words2str(char *dst, uint32_t vendor1,
 #define TCG_SGX_12_0_EBX_FEATURES 0
 #define TCG_SGX_12_1_EAX_FEATURES 0
 #define TCG_24_0_EBX_FEATURES 0
+#define TCG_RDT_F_0_EDX_FEATURES CPUID_F_0_EDX_L3
+#define TCG_RDT_10_0_EDX_FEATURES (CPUID_10_0_EBX_L3_CAT | \
+          CPUID_10_0_EBX_L2_CAT | CPUID_10_0_EBX_MBA)
 
 #if defined CONFIG_USER_ONLY
 #define CPUID_8000_0008_EBX_KERNEL_FEATURES (CPUID_8000_0008_EBX_IBPB | \
@@ -1062,7 +1066,7 @@  FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
             "fsgsbase", "tsc-adjust", "sgx", "bmi1",
             "hle", "avx2", "fdp-excptn-only", "smep",
             "bmi2", "erms", "invpcid", "rtm",
-            NULL, "zero-fcs-fds", "mpx", NULL,
+            "rdt-m", "zero-fcs-fds", "mpx", "rdt-a",
             "avx512f", "avx512dq", "rdseed", "adx",
             "smap", "avx512ifma", "pcommit", "clflushopt",
             "clwb", "intel-pt", "avx512pf", "avx512er",
@@ -1650,6 +1654,31 @@  FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
         },
         .tcg_features = TCG_SGX_12_1_EAX_FEATURES,
     },
+
+    [FEAT_RDT_10_0_EBX] = {
+        .type = CPUID_FEATURE_WORD,
+        .feat_names = {
+            NULL, "l3-cat", "l2-cat", "mba"
+        },
+        .cpuid = {
+            .eax = 0x10,
+            .needs_ecx = true, .ecx = 0,
+            .reg = R_EBX,
+        },
+        .tcg_features = TCG_RDT_10_0_EDX_FEATURES,
+    },
+    [FEAT_RDT_F_0_EDX] = {
+        .type = CPUID_FEATURE_WORD,
+        .feat_names = {
+            [1] = "l3-cmt"
+        },
+        .cpuid = {
+            .eax = 0xf,
+            .needs_ecx = true, .ecx = 0,
+            .reg = R_EDX,
+        },
+        .tcg_features = TCG_RDT_F_0_EDX_FEATURES,
+    },
 };
 
 typedef struct FeatureMask {
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 6f5a3ecbd4..488126378d 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -679,7 +679,9 @@  typedef enum FeatureWord {
     FEAT_7_1_EDX,       /* CPUID[EAX=7,ECX=1].EDX */
     FEAT_7_2_EDX,       /* CPUID[EAX=7,ECX=2].EDX */
     FEAT_24_0_EBX,      /* CPUID[EAX=0x24,ECX=0].EBX */
+    FEAT_RDT_F_0_EBX,  /* CPUID[EAX=0xf,ECX=0].EBX (RDT CMT/MBM) */
     FEAT_RDT_F_0_EDX,  /* CPUID[EAX=0xf,ECX=0].EDX (RDT CMT/MBM) */
+    FEAT_RDT_10_0_EBX,  /* CPUID[EAX=0x10,ECX=0].EBX (RDT CAT/MBA) */
     FEATURE_WORDS,
 } FeatureWord;