linux_dsm_epyc7002/arch
Joerg Roedel ca0e22d4f0 x86/boot/compressed/64: Always switch to own page table
When booted through startup_64(), the kernel keeps running on the EFI
page table until the KASLR code sets up its own page table. Without
KASLR, the pre-decompression boot code never switches off the EFI page
table. Change that by unconditionally switching to a kernel-controlled
page table after relocation.

This makes sure the kernel can make changes to the mapping when
necessary, for example map pages unencrypted in SEV and SEV-ES guests.

Also, remove the debug_putstr() calls in initialize_identity_maps()
because the function now runs before console_init() is called.

 [ bp: Massage commit message. ]

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lkml.kernel.org/r/20200907131613.12703-17-joro@8bytes.org
2020-09-07 19:45:25 +02:00
..
alpha treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
arc ARC fixes for 5.9-rc4 2020-09-05 13:46:14 -07:00
arm A set of fixes for lockdep, tracing and RCU: 2020-08-30 11:43:50 -07:00
arm64 - Fix the loading of modules built with binutils-2.35. This version 2020-09-04 13:40:59 -07:00
c6x treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
csky treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
h8300 treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
hexagon treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
ia64 ia64: fix min_low_pfn/max_low_pfn build errors 2020-09-01 19:34:11 +03:00
m68k treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
microblaze microblaze: fix min_low_pfn/max_low_pfn build errors 2020-08-31 19:52:50 +03:00
mips A few MIPS fixes: 2020-09-04 13:37:19 -07:00
nds32 A set of fixes for lockdep, tracing and RCU: 2020-08-30 11:43:50 -07:00
nios2 mm/nios2: use general page fault accounting 2020-08-12 10:58:03 -07:00
openrisc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
parisc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
powerpc A set of fixes for lockdep, tracing and RCU: 2020-08-30 11:43:50 -07:00
riscv treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
s390 s390: update defconfigs 2020-09-02 13:17:05 +02:00
sh treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
sparc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
um treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
x86 x86/boot/compressed/64: Always switch to own page table 2020-09-07 19:45:25 +02:00
xtensa treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
.gitignore
Kconfig A set oftimekeeping/VDSO updates: 2020-08-14 14:26:08 -07:00