Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1424668 > unrolled thread

[PATCH 02/10] x86 tsc_msr: Identify Intel-specific code

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  [PATCH 02/10] x86 tsc_msr: Identify Intel-specific code Len Brown <lenb@kernel.org> - 2016-06-17 07:30 +0200

#1424668 — [PATCH 02/10] x86 tsc_msr: Identify Intel-specific code

From: Len Brown <len.brown@intel.com>

try_msr_calibrate_tsc() is currently Intel-specific,
and should not execute on any other vendor's parts.

Signed-off-by: Len Brown <len.brown@intel.com>
---
 arch/x86/kernel/tsc_msr.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/kernel/tsc_msr.c b/arch/x86/kernel/tsc_msr.c
index 6aa0f4d..4ec5e56 100644
--- a/arch/x86/kernel/tsc_msr.c
+++ b/arch/x86/kernel/tsc_msr.c
@@ -86,6 +86,9 @@ unsigned long try_msr_calibrate_tsc(void)
 	unsigned long res;
 	int cpu_index;
 
+	if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
+		return 0;
+
 	cpu_index = match_cpu(boot_cpu_data.x86, boot_cpu_data.x86_model);
 	if (cpu_index < 0)
 		return 0;
-- 
2.9.0

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web