Messages in this thread | | | Date | Mon, 29 Apr 2019 14:50:59 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH v5 1/2] x86/kexec: Build identity mapping for EFI systab and ACPI tables |
| |
On Sun, Apr 28, 2019 at 01:41:14PM +0800, Baoquan He wrote: > About this place, do you think below change is OK to you? > > ~~~ > The current code only builds identity mapping for physical memory during > kexec-type loading. The regions reserved by firmware are not covered. > In the later code change, the boot decompressing code of kexec-ed kernel > will try to access EFI systab and ACPI tables, lacking identity mapping for > them will cause error and reset system to firmware.
Yap, better.
Thx.
-- Regards/Gruss, Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
| |