linux-kernel - [PATCH v5 14/35] x86/cpuid: Parse CPUID(0x80000002) to CPUID(0x80000004)

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Message-ID: <20250905121515.192792-15-darwi@linutronix.de>
Date: Fri,  5 Sep 2025 14:14:54 +0200
From: "Ahmed S. Darwish" <darwi@...utronix.de>
To: Borislav Petkov <bp@...en8.de>,
	Ingo Molnar <mingo@...hat.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>
Cc: Thomas Gleixner <tglx@...utronix.de>,
	Andrew Cooper <andrew.cooper3@...rix.com>,
	Sean Christopherson <seanjc@...gle.com>,
	David Woodhouse <dwmw2@...radead.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Sohil Mehta <sohil.mehta@...el.com>,
	John Ogness <john.ogness@...utronix.de>,
	x86@...nel.org,
	x86-cpuid@...ts.linux.dev,
	LKML <linux-kernel@...r.kernel.org>,
	"Ahmed S. Darwish" <darwi@...utronix.de>
Subject: [PATCH v5 14/35] x86/cpuid: Parse CPUID(0x80000002) to CPUID(0x80000004)

Add CPUID(0x80000002)->CPUID(0x80000004) support to the CPUID parser.
This allows converting their call site to the new CPUID parser API next.

Signed-off-by: Ahmed S. Darwish <darwi@...utronix.de>
---
 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 e57245ca6419..6f4da51126b3 100644
--- a/arch/x86/include/asm/cpuid/types.h
+++ b/arch/x86/include/asm/cpuid/types.h
@@ -237,6 +237,9 @@ 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 39a361eed7ce..c56c3dbe39e1 100644
--- a/arch/x86/kernel/cpu/cpuid_parser.h
+++ b/arch/x86/kernel/cpu/cpuid_parser.h
@@ -112,5 +112,8 @@ 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 */
-- 
2.50.1