On Fri, Sep 23, 2022 at 09:08:01PM +0530, K Prateek Nayak wrote:
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index ef4775c6db01..fcd3617ed315 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -460,5 +460,6 @@ #define X86_BUG_MMIO_UNKNOWN X86_BUG(26) /* CPU is too old and its MMIO Stale Data status is unknown */ #define X86_BUG_RETBLEED X86_BUG(27) /* CPU is affected by RETBleed */ #define X86_BUG_EIBRS_PBRSB X86_BUG(28) /* EIBRS is vulnerable to Post Barrier RSB Predictions */ +#define X86_BUG_STPCLK X86_BUG(29) /* STPCLK# signal does not get asserted in time during IOPORT based C-state entry */
What for?
Did you not see this thread?
https://lore.kernel.org/r/78d13a19-2806-c8af-573e-7f2625edfab8@intel.com