[PATCH v7 096/120] x86/cpuid: Parse CPUID(0x80000022)
From: Ahmed S. Darwish
Date: Thu May 28 2026 - 12:47:36 EST
Parse CPUID(0x80000022).
Add AMD and Hygon vendor tags as it is only supported on these CPUs.
Signed-off-by: Ahmed S. Darwish <darwi@xxxxxxxxxxxxx>
---
arch/x86/include/asm/cpuid/types.h | 1 +
arch/x86/kernel/cpu/cpuid_parser.h | 2 ++
2 files changed, 3 insertions(+)
diff --git a/arch/x86/include/asm/cpuid/types.h b/arch/x86/include/asm/cpuid/types.h
index 08c338909506..a49b3df2bdf8 100644
--- a/arch/x86/include/asm/cpuid/types.h
+++ b/arch/x86/include/asm/cpuid/types.h
@@ -236,6 +236,7 @@ struct cpuid_leaves {
CPUID_LEAF ( 0x80000006, 0 );
CPUID_LEAF ( 0x80000008, 0 );
CPUID_LEAF_N ( 0x8000001d, 8 );
+ CPUID_LEAF ( 0x80000022, 0 );
CPUID_LEAF ( 0x80860000, 0 );
CPUID_LEAF ( 0x80860001, 0 );
CPUID_LEAF ( 0x80860002, 0 );
diff --git a/arch/x86/kernel/cpu/cpuid_parser.h b/arch/x86/kernel/cpu/cpuid_parser.h
index 6767923f86d9..2de27a86861d 100644
--- a/arch/x86/kernel/cpu/cpuid_parser.h
+++ b/arch/x86/kernel/cpu/cpuid_parser.h
@@ -170,6 +170,7 @@ struct cpuid_parse_entry {
CPUID_PARSE_ENTRY ( 0x80000006, 0, generic ), \
CPUID_PARSE_ENTRY ( 0x80000008, 0, generic ), \
CPUID_PARSE_ENTRY_N ( 0x8000001d, deterministic_cache ), \
+ CPUID_PARSE_ENTRY ( 0x80000022, 0, generic ), \
CPUID_PARSE_ENTRY ( 0x80860000, 0, 0x80860000 ), \
CPUID_PARSE_ENTRY ( 0x80860001, 0, generic ), \
CPUID_PARSE_ENTRY ( 0x80860002, 0, generic ), \
@@ -220,6 +221,7 @@ struct cpuid_vendor_entry {
CPUID_VENDOR_ENTRY(0x1c, X86_VENDOR_INTEL), \
CPUID_VENDOR_ENTRY(0x23, X86_VENDOR_INTEL), \
CPUID_VENDOR_ENTRY(0x8000001d, X86_VENDOR_AMD, X86_VENDOR_HYGON), \
+ CPUID_VENDOR_ENTRY(0x80000022, X86_VENDOR_AMD, X86_VENDOR_HYGON), \
CPUID_VENDOR_ENTRY(0x80860000, X86_VENDOR_TRANSMETA), \
CPUID_VENDOR_ENTRY(0x80860001, X86_VENDOR_TRANSMETA), \
CPUID_VENDOR_ENTRY(0x80860002, X86_VENDOR_TRANSMETA), \
--
2.54.0