diff options
| author | Tom Lendacky <thomas.lendacky@amd.com> | 2020-09-07 15:15:42 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-09-09 11:33:19 +0200 |
| commit | 885689e47dfa1499b756a07237eb645234d93cf9 (patch) | |
| tree | ad37684b76cb072a208d392192532eeb5fa736e0 /arch/x86/kernel/traps.c | |
| parent | 1aa9aa8ee517e0443b06e816a4fd2d15f2113615 (diff) | |
| download | linux-885689e47dfa1499b756a07237eb645234d93cf9.tar.bz2 | |
x86/sev-es: Setup per-CPU GHCBs for the runtime handler
The runtime handler needs one GHCB per-CPU. Set them up and map them
unencrypted.
[ bp: Touchups and simplification. ]
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200907131613.12703-42-joro@8bytes.org
Diffstat (limited to 'arch/x86/kernel/traps.c')
| -rw-r--r-- | arch/x86/kernel/traps.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 81a2fb711091..2dc32b0ca38e 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -1074,6 +1074,9 @@ void __init trap_init(void) /* Init cpu_entry_area before IST entries are set up */ setup_cpu_entry_areas(); + /* Init GHCB memory pages when running as an SEV-ES guest */ + sev_es_init_vc_handling(); + idt_setup_traps(); /* |