Re: question on microcode loading

2023-02-08 Thread Steffen Nurpmeso
Borislav Petkov wrote in : |On Wed, Feb 08, 2023 at 11:21:13AM +0800, RuiRui Yang wrote: |>> There is only one question regarding CPU microcode loading: it |>> seems the microcode is not "updated early" with kexec upon "boot". | |You lost me here: when you load a kernel and you have builtin m

Re: [PATCH v18 5/7] kexec: exclude hot remove cpu from elfcorehdr notes

2023-02-08 Thread Thomas Gleixner
Eric! On Tue, Feb 07 2023 at 11:23, Eric DeVolder wrote: > On 2/1/23 05:33, Thomas Gleixner wrote: > > So my latest solution is introduce two new CPUHP states, > CPUHP_AP_ELFCOREHDR_ONLINE > for onlining and CPUHP_BP_ELFCOREHDR_OFFLINE for offlining. I'm open to > better names. > > The CPUHP_AP_

Re: question on microcode loading

2023-02-08 Thread Borislav Petkov
On Wed, Feb 08, 2023 at 11:21:13AM +0800, RuiRui Yang wrote: > > There is only one question regarding CPU microcode loading: it > > seems the microcode is not "updated early" with kexec upon "boot". You lost me here: when you load a kernel and you have builtin microcode or have supplied it through