The following commit has been merged into the x86/cpu branch of tip:
Commit-ID: 23c905f7ec9d8dc3016fa4e3a9f321a920583b60
Gitweb: https://git.kernel.org/tip/23c905f7ec9d8dc3016fa4e3a9f321a920583b60
Author: Sohil Mehta <sohil.mehta@xxxxxxxxx>
AuthorDate: Wed, 19 Feb 2025 18:41:22
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Tue, 18 Mar 2025 19:33:45 +01:00
x86/mtrr: Modify a x86_model check to an Intel VFM check
Simplify one of the last few Intel x86_model checks in arch/x86 by
substituting it with a VFM one.
Signed-off-by: Sohil Mehta <sohil.mehta@xxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Acked-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20250219184133.816753-5-sohil.mehta@xxxxxxxxx
---
arch/x86/kernel/cpu/mtrr/generic.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 6be3cad..e2c6b47 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -13,6 +13,7 @@
#include <asm/processor-flags.h>
#include <asm/cacheinfo.h>
#include <asm/cpufeature.h>
+#include <asm/cpu_device_id.h>
#include <asm/hypervisor.h>
#include <asm/mshyperv.h>
#include <asm/tlbflush.h>
@@ -1026,8 +1027,7 @@ int generic_validate_add_page(unsigned long base, unsigned long size,
* For Intel PPro stepping <= 7
* must be 4 MiB aligned and not touch 0x70000000 -> 0x7003FFFF
*/
- if (mtrr_if == &generic_mtrr_ops && boot_cpu_data.x86 == 6 &&
- boot_cpu_data.x86_model == 1 &&
+ if (mtrr_if == &generic_mtrr_ops && boot_cpu_data.x86_vfm == INTEL_PENTIUM_PRO &&
boot_cpu_data.x86_stepping <= 7) {
if (base & ((1 << (22 - PAGE_SHIFT)) - 1)) {
pr_warn("mtrr: base(0x%lx000) is not 4 MiB aligned\n", base);
|