Messages in this thread | | | Date | Wed, 28 Dec 2022 10:36:22 -0800 | From | Ashok Raj <> | Subject | Re: [PATCH v3 2/2] x86/microcode/core: Take a snapshot before and after applying microcode |
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On Tue, Dec 27, 2022 at 01:01:44PM -0800, Ashok Raj wrote: > The kernel caches features about each CPU's features at boot in an > x86_capability[] structure. The microcode update takes one snapshot and > compares it with the saved copy at boot. > > However, the capabilities in the boot copy can be turned off as a result of > certain command line parameters or configuration restrictions. This can > cause a mismatch when comparing the values before and after the microcode > update. > > microcode_check() is called after an update to report any previously > cached CPUID bits might have changed due to the update. >
I'll send you a clean version. Somehow this picked up an interim change and the change to microcode_check() is not there. I remember testing but it happened to be a different system I updated.
I'll send something after the new years.. working during holidays isn't efficient :-(.
Cheers, Ashok
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