diff mbox

[3/5] i386: Add CPUID bit for PCONFIG

Message ID 1529897961-134132-4-git-send-email-robert.hu@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Robert Hoo June 25, 2018, 3:39 a.m. UTC 
PCONFIG: Platform configuration, enumerated by CPUID.(EAX=07H, ECX=0):
EDX[bit18].

Reference:
https://software.intel.com/sites/default/files/managed/c5/15/architecture-instruction-set-extensions-programming-reference.pdf

Signed-off-by: Robert Hoo <robert.hu@linux.intel.com>
---
 target/i386/cpu.c | 2 +-
 target/i386/cpu.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 3134af4..9e038c3 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -893,7 +893,7 @@  static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,
-            NULL, NULL, NULL, NULL,
+            NULL, NULL, "pconfig", NULL,
             NULL, NULL, NULL, NULL,
             NULL, NULL, "spec-ctrl", NULL,
             NULL, "arch-capabilities", NULL, "ssbd",
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 1ef2040..61d23e5 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -687,6 +687,7 @@  typedef uint32_t FeatureWordArray[FEATURE_WORDS];
 
 #define CPUID_7_0_EDX_AVX512_4VNNIW (1U << 2) /* AVX512 Neural Network Instructions */
 #define CPUID_7_0_EDX_AVX512_4FMAPS (1U << 3) /* AVX512 Multiply Accumulation Single Precision */
+#define CPUID_7_0_EDX_PCONFIG (1U << 18)       /* Platform Configuration */
 #define CPUID_7_0_EDX_SPEC_CTRL     (1U << 26) /* Speculation Control */
 #define CPUID_7_0_EDX_ARCH_CAPABILITIES (1U << 29)  /*Arch Capabilities of RDCL_NO and IBRS_ALL*/
 #define CPUID_7_0_EDX_SPEC_CTRL_SSBD  (1U << 31) /* Speculative Store Bypass Disable */