linux-kernel - [PATCH v1 3/9] tools/x86/kcpuid: Set max possible subleaves count to 64

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Message-ID: <20240718134755.378115-4-darwi@linutronix.de>
Date: Thu, 18 Jul 2024 15:47:43 +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>,
	"H. Peter Anvin" <hpa@...or.com>,
	x86@...nel.org,
	x86-cpuid@...ts.linux.dev
Cc: Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org,
	"Ahmed S. Darwish" <darwi@...utronix.de>
Subject: [PATCH v1 3/9] tools/x86/kcpuid: Set max possible subleaves count to 64

cpuid.csv will be extended in further commits with all-publicly-known
CPUID leaves and bitfields.  One of the new leaves is 0xd for extended
CPU state enumeration.  Depending on XCR0 dword bits, it can export up to
64 subleaves.

Set kcpuid.c MAX_SUBLEAF_NUM to 64.

Signed-off-by: Ahmed S. Darwish <darwi@...utronix.de>
---
 tools/arch/x86/kcpuid/kcpuid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/arch/x86/kcpuid/kcpuid.c b/tools/arch/x86/kcpuid/kcpuid.c
index 08f64d9ecb40..a87cddc19554 100644
--- a/tools/arch/x86/kcpuid/kcpuid.c
+++ b/tools/arch/x86/kcpuid/kcpuid.c
@@ -203,7 +203,7 @@ static void raw_dump_range(struct cpuid_range *range)
 	}
 }
 
-#define MAX_SUBLEAF_NUM		32
+#define MAX_SUBLEAF_NUM		64
 struct cpuid_range *setup_cpuid_range(u32 input_eax)
 {
 	u32 max_func, idx_func;
-- 
2.45.2