Re: [PATCH v2] x86/kexec: Add EFI config table identity mapping for kexec kernel

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 07/07/23 at 10:22am, Joerg Roedel wrote:
> On Fri, Jul 07, 2023 at 12:23:59PM +0800, Baoquan He wrote:
> > I am wondering why we don't detect the cpu type and return early inside
> > sev_enable() if it's Intel cpu.
> > 
> > We can't rely on CONFIG_AMD_MEM_ENCRYPT to decide if the code need be
> > executed or not because we usually enable them all in distros.
> 
> Looking at the code in head_64.S, by the time sev_enable() runs the SEV
> bit should already be set in sev_status. Maybe use that to detect
> whether SEV is enabled and bail out early?

Makes sense to me. Thanks.


_______________________________________________
kexec mailing list
kexec@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/kexec



[Index of Archives]     [LM Sensors]     [Linux Sound]     [ALSA Users]     [ALSA Devel]     [Linux Audio Users]     [Linux Media]     [Kernel]     [Gimp]     [Yosemite News]     [Linux Media]

  Powered by Linux