Tom Lendacky 39336f4ffb x86/efi: Add GHCB mappings when SEV-ES is active ... Calling down to EFI runtime services can result in the firmware performing VMGEXIT calls. The firmware is likely to use the GHCB of the OS (e.g., for setting EFI variables), so each GHCB in the system needs to be identity-mapped in the EFI page tables, as unencrypted, to avoid page faults. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> [ jroedel@suse.de: Moved GHCB mapping loop to sev-es.c ] Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lkml.kernel.org/r/20200907131613.12703-72-joro@8bytes.org		2020-09-10 21:48:50 +02:00
..
efi_32.c	efi/x86: Move 32-bit code into efi_32.c	2020-08-20 11:18:36 +02:00
efi_64.c	x86/efi: Add GHCB mappings when SEV-ES is active	2020-09-10 21:48:50 +02:00
efi_stub_32.S	efi/x86: Preserve %ebx correctly in efi_set_virtual_address_map()	2020-03-08 09:58:23 +01:00
efi_stub_64.S	x86: Change {JMP,CALL}_NOSPEC argument	2020-04-30 20:14:34 +02:00
efi_thunk_64.S	efi/x86: Check number of arguments to variadic functions	2020-01-10 18:55:04 +01:00
efi.c	efi/x86: Move 32-bit code into efi_32.c	2020-08-20 11:18:36 +02:00
Makefile	efi/x86: Disable instrumentation in the EFI runtime handling code	2020-01-25 10:14:37 +01:00
quirks.c	x86/efi: Remove references to no-longer-used efi_have_uv1_memmap()	2020-07-17 16:47:47 +02:00