Messages in this thread | | | Date | Fri, 01 Aug 2008 08:26:19 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [patch 0/4] x86: AMD microcode patch loading v2 fixes |
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Dmitry Adamushko wrote: > Tigran, Peter, > > may a firmware package contain a few 'microcode' updates for a specific cpu? > > And if so, does each of them provide independent 'errata' fixes? [*] > > (or they are just different versions of the same self-consistent/full > 'microcode' update and we may need to apply each of them just e.g. > because we can't jump from stepping X.1 to X.3 without applying X.2 in > between? > > if it's [1], then I wonder why only a single 'microcode' update (which > has been previously cached in 'uci->mc') is being applied for the case > of system-wide resume (apply_microcode_check_cpu()). Don't we need to > go through the full cpu_request_microcode() cycle to consider all > updates? >
No, there is only ever one microcode; you only run the latest one.
-hpa
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