Re: [PATCHv3 2/2] x86/mm: Make memremap(MEMREMAP_WB) map memory as encrypted by default

On Mon, Jan 13, 2025 at 02:47:56PM -0600, Tom Lendacky wrote:

This patch causes my bare-metal system to crash during boot when using mem_encrypt=on:

[ 2.392934] efi: memattr: Entry type should be RuntimeServiceCode/Data [ 2.393731] efi: memattr: ! 0x214c42f01f1162a-0xee70ac7bd1a9c629 [type=2028324321|attr=0x6590648fa4209879] [ 2.394733] BUG: unable to handle page fault for address: ffffc900b4669017

A wild guess: looks like it tries to map EFI memory encrypted now...

Anyway, lemme zap. Those will have to go through the full motions of testing.