linux-kernel - [GIT PULL] x86/sev for v6.13

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Message-ID: <20241118160351.GAZztlZxg0V5LMzeUq@fat_crate.local>
Date: Mon, 18 Nov 2024 17:03:51 +0100
From: Borislav Petkov <bp@...en8.de>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: x86-ml <x86@...nel.org>, lkml <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] x86/sev for v6.13

Hi Linus,

please pull the SEV lineup for v6.13.

Thx.

---

The following changes since commit 8e929cb546ee42c9a61d24fae60605e9e3192354:

  Linux 6.12-rc3 (2024-10-13 14:33:32 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip tags/x86_sev_for_v6.13

for you to fetch changes up to 8bca85cc1eb72e21a3544ab32e546a819d8674ca:

  x86/sev: Cleanup vc_handle_msr() (2024-11-07 12:10:01 +0100)

----------------------------------------------------------------
- Do the proper memory conversion of guest memory in order to be able to kexec
  kernels in SNP guests along with other adjustments and cleanups to that
  effect

- Start converting and moving functionality from the sev-guest driver into
  core code with the purpose of supporting the secure TSC SNP feature where
  the hypervisor cannot influence the TSC exposed to the guest anymore

- Add a "nosnp" cmdline option in order to be able to disable SNP support in
  the hypervisor and thus free-up resources which are not going to be used

- Cleanups

----------------------------------------------------------------
Ashish Kalra (3):
      x86/boot: Skip video memory access in the decompressor for SEV-ES/SNP
      x86/mm: Refactor __set_clr_pte_enc()
      x86/sev: Convert shared memory back to private on kexec

Borislav Petkov (AMD) (1):
      x86/sev: Cleanup vc_handle_msr()

Nikunj A Dadhania (6):
      virt: sev-guest: Use AES GCM crypto library
      x86/sev: Handle failures from snp_init()
      x86/sev: Cache the secrets page address
      virt: sev-guest: Consolidate SNP guest messaging parameters to a struct
      virt: sev-guest: Reduce the scope of SNP command mutex
      virt: sev-guest: Carve out SNP message context structure

Pavan Kumar Paluri (2):
      x86/virt: Move SEV-specific parsing into arch/x86/virt/svm
      x86/virt: Provide "nosnp" boot option for sev kernel command line

 Documentation/arch/x86/x86_64/boot-options.rst |   5 +
 arch/x86/boot/compressed/misc.c                |  15 +
 arch/x86/coco/sev/core.c                       | 269 ++++++++++------
 arch/x86/include/asm/sev-common.h              |  27 ++
 arch/x86/include/asm/sev.h                     |  67 +++-
 arch/x86/mm/mem_encrypt_amd.c                  |  77 +++--
 arch/x86/mm/mem_encrypt_identity.c             |  11 +-
 arch/x86/virt/svm/Makefile                     |   1 +
 arch/x86/virt/svm/cmdline.c                    |  45 +++
 drivers/virt/coco/sev-guest/Kconfig            |   4 +-
 drivers/virt/coco/sev-guest/sev-guest.c        | 416 ++++++++++---------------
 11 files changed, 543 insertions(+), 394 deletions(-)
 create mode 100644 arch/x86/virt/svm/cmdline.c


-- 
Regards/Gruss,
    Boris.

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