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x86/apic: Fix 32-bit APIC initialization for extended Intel Families

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APIC detection is currently limited to a few specific Families and will
not match the upcoming Families >=18.

Extend the check to include all Families 6 or greater. Also convert it
to a VFM check to make it simpler.

Signed-off-by: Sohil Mehta <sohil.mehta@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/r/20250219184133.816753-2-sohil.mehta@intel.com
This commit is contained in:
Sohil Mehta
2025-02-19 18:41:19 +00:00
committed by Ingo Molnar
parent a46f322661
commit 680d9b2a56
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kernel/apic/apic.c
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@@ -2011,8 +2011,8 @@ static bool __init detect_init_APIC(void)
case X86_VENDOR_HYGON:
break;
case X86_VENDOR_INTEL:
if (boot_cpu_data.x86 == 6 || boot_cpu_data.x86 == 15 ||
(boot_cpu_data.x86 == 5 && boot_cpu_has(X86_FEATURE_APIC)))
if ((boot_cpu_data.x86 == 5 && boot_cpu_has(X86_FEATURE_APIC)) ||
boot_cpu_data.x86_vfm >= INTEL_PENTIUM_PRO)
break;
goto no_apic;
default: