[PATCH v7 0/2] x86/sev: Fixes for SEV-ES Guest Support

[Joerg Roedel]

From: Joerg Roedel <jroedel@xxxxxxx>

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/20210616184913.13064-1-joro@xxxxxxxxxx/

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