[PATCH v7 014/120] x86/cpuid: Parse CPUID(0x80000002) to CPUID(0x80000004)

"Ahmed S. Darwish" <[email protected]> Thu, 28 May 2026 17:37:36 +0200
Newsgroups dev.linux.lists.x86-cpuid,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
Add CPUID(0x80000002) => CPUID(0x80000004) support to the CPUID parser.

This allows converting their call sites to the CPUID API next.

Signed-off-by: Ahmed S. Darwish <[email protected]>
---
 arch/x86/include/asm/cpuid/types.h | 3 +++
 arch/x86/kernel/cpu/cpuid_parser.h | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/arch/x86/include/asm/cpuid/types.h b/arch/x86/include/asm/cpuid/types.h
index c020fb8fed59..8be2c2ba874a 100644
--- a/arch/x86/include/asm/cpuid/types.h
+++ b/arch/x86/include/asm/cpuid/types.h
@@ -207,6 +207,9 @@ struct cpuid_leaves {
 	CPUID_LEAF   (	0x0,		0  );
 	CPUID_LEAF   (	0x1,		0  );
 	CPUID_LEAF   (  0x80000000,	0  );
+	CPUID_LEAF   (  0x80000002,	0  );
+	CPUID_LEAF   (  0x80000003,	0  );
+	CPUID_LEAF   (  0x80000004,	0  );
 };
 
 /*
diff --git a/arch/x86/kernel/cpu/cpuid_parser.h b/arch/x86/kernel/cpu/cpuid_parser.h
index 7d41bde0c0ec..3e11e13fa76c 100644
--- a/arch/x86/kernel/cpu/cpuid_parser.h
+++ b/arch/x86/kernel/cpu/cpuid_parser.h
@@ -117,5 +117,8 @@ struct cpuid_parse_entry {
 	CPUID_PARSE_ENTRY   (	0x0,		0,		generic			),	\
 	CPUID_PARSE_ENTRY   (	0x1,		0,		generic			),	\
 	CPUID_PARSE_ENTRY   (	0x80000000,	0,		0x80000000		),	\
+	CPUID_PARSE_ENTRY   (	0x80000002,	0,		generic			),	\
+	CPUID_PARSE_ENTRY   (	0x80000003,	0,		generic			),	\
+	CPUID_PARSE_ENTRY   (	0x80000004,	0,		generic			),	\
 
 #endif /* _ARCH_X86_CPUID_PARSER_H */
-- 
2.54.0