linux/arch
Juergen Gross c957f1f3c4 x86/hyperv: Set MTRR state when running as SEV-SNP Hyper-V guest
In order to avoid mappings using the UC- cache attribute, set the
MTRR state to use WB caching as the default.

This is needed in order to cope with the fact that PAT is enabled,
while MTRRs are not supported by the hypervisor.

Fixes: 90b926e68f ("x86/pat: Fix pat_x_mtrr_type() for MTRR disabled case")
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20230502120931.20719-5-jgross@suse.com
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
2023-06-01 15:04:32 +02:00
..
alpha Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
arc Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
arm Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
arm64 Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
csky arch/csky patches for 6.4 2023-05-04 12:25:05 -07:00
hexagon Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
ia64 Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
loongarch Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
m68k Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
microblaze Kconfig: introduce HAS_IOPORT option and select it as necessary 2023-04-05 22:15:19 +02:00
mips Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
nios2 - Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of 2023-04-27 19:42:02 -07:00
openrisc Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
parisc Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
powerpc Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
riscv Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
s390 s390: remove the unneeded select GCC12_NO_ARRAY_BOUNDS 2023-05-05 18:56:23 -07:00
sh Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
sparc Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
um This pull request contains the following changes for UML: 2023-05-03 19:02:03 -07:00
x86 x86/hyperv: Set MTRR state when running as SEV-SNP Hyper-V guest 2023-06-01 15:04:32 +02:00
xtensa Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
.gitignore
Kconfig lazy tlb: shoot lazies, non-refcounting lazy tlb mm reference handling scheme 2023-03-28 16:20:08 -07:00