linux/arch/x86/platform/uv
Ard Biesheuvel 0779221e71 efi/x86: Disallow efi=old_map in mixed mode
Before:

  1f299fad1e: ("efi/x86: Limit EFI old memory map to SGI UV machines")

enabling the old EFI memory map on mixed mode systems
disabled EFI runtime services altogether.

Given that efi=old_map is a debug feature designed to work around
firmware problems related to EFI runtime services, and disabling
them can be achieved more straightforwardly using 'noefi' or
'efi=noruntime', it makes more sense to ignore efi=old_map on
mixed mode systems.

Currently, we do neither, and try to use the old memory map in
combination with mixed mode routines, which results in crashes,
so let's fix this by making efi=old_map functional on native
systems only.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-01-22 08:01:13 +01:00
..
bios_uv.c efi/x86: Disallow efi=old_map in mixed mode 2020-01-22 08:01:13 +01:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
tlb_uv.c x86/platform/uv: Fix kmalloc() NULL check routine 2019-09-06 07:36:16 +02:00
uv_irq.c x86/platform/uv: Use apic_ack_irq() 2018-06-06 15:18:21 +02:00
uv_nmi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
uv_sysfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
uv_time.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00