Messages in this thread | | | Date | Fri, 7 Jul 2023 16:41:12 +0800 | From | Baoquan He <> | Subject | Re: [PATCH v2] x86/kexec: Add EFI config table identity mapping for kexec kernel |
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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.
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