From: Joerg Roedel <[email protected]>
Hi,
please find here the next iteration of my pending fixes for SEV-ES
guest support in Linux. This version addresses the comments I received
from Peter on the previous version, in particular:
- Removed IRQ disable/enable calls in the ap-hlt loop code
- Made __sev_get/put_ghcb() noinstr instead of __always_inline
and put instrumentation_begin()/end() calls around panic()
to fix an objtool warning.
- Split up #DB handling in the #VC handler into a from-user
and from-kernel part as well.
The patches are again tested with a kernel with various debugging
options enabled, running as an SEV-ES guest.
The previous version of these patches can be found here:
https://lore.kernel.org/lkml/[email protected]/
Please review.
Thanks,
Joerg
Joerg Roedel (2):
x86/sev: Make sure IRQs are disabled while GHCB is active
x86/sev: Split up runtime #VC handler for correct state tracking
arch/x86/entry/entry_64.S | 4 +-
arch/x86/include/asm/idtentry.h | 29 ++---
arch/x86/kernel/sev.c | 182 ++++++++++++++++++--------------
3 files changed, 113 insertions(+), 102 deletions(-)
base-commit: 07570cef5e5c3fcec40f82a9075abb4c1da63319
--
2.31.1
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