[PATCH v2 0/4] x86/sev: Rework SNP Guest Request

[Alexey Kardashevskiy]

Started as a part of the fix for
ae596615d93d ("virt: sev-guest: Reduce the scope of SNP command mutex")

these are the remainder of followup fixes/improvements as
the SNP Guest Request code evolved enough to make it a bit hard to
follow.

Changes:
v2:
* added RBs
* adjusted grammar
* rebased on top of v6.16-rc1


The previous conversation is here:
https://lore.kernel.org/r/20250505141238.4179623-1-aik@xxxxxxx 

This is based on sha1
19272b37aa4f Linus Torvalds "Linux 6.16-rc1".

Please comment. Thanks.



Alexey Kardashevskiy (4):
  virt: sev-guest: Contain snp_guest_request_ioctl in sev-guest
  x86/sev: Allocate request in TSC_INFO_REQ on stack
  x86/sev: Document requirement for linear mapping of Guest Request
    buffers
  x86/sev: Drop unnecessary parameter in snp_issue_guest_request

 arch/x86/include/asm/sev.h              | 10 ++-
 arch/x86/coco/sev/core.c                | 72 +++++++++-----------
 drivers/virt/coco/sev-guest/sev-guest.c |  9 ++-
 3 files changed, 43 insertions(+), 48 deletions(-)

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2.49.0