linux-kernel - [GIT PULL] x86/urgent for 6.1-rc7

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Date:   Sun, 27 Nov 2022 12:13:58 +0100
From:   Borislav Petkov <bp@...e.de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     x86-ml <x86@...nel.org>, lkml <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] x86/urgent for 6.1-rc7

Hi Linus,

please pull a couple of urgent x86 fixes which accumulated recently, for
6.1.

Thx.

---

The following changes since commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8:

  Linux 6.1-rc6 (2022-11-20 16:02:16 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/x86_urgent_for_v6.1_rc7

for you to fetch changes up to 4dbd6a3e90e03130973688fd79e19425f720d999:

  x86/ioremap: Fix page aligned size calculation in __ioremap_caller() (2022-11-22 12:21:16 +0100)

----------------------------------------------------------------
- ioremap: mask out the bits which are not part of the physical address
*after* the size computation is done to prevent and hypothetical ioremap
failures

- Change the MSR save/restore functionality during suspend to rely on
flags denoting that the related MSRs are actually supported vs reading
them and assuming they are (an Atom one allows reading but not writing,
thus breaking this scheme at resume time.)

- prevent IV reuse in the AES-GCM communication scheme between SNP
guests and the AMD secure processor

----------------------------------------------------------------
Michael Kelley (1):
      x86/ioremap: Fix page aligned size calculation in __ioremap_caller()

Pawan Gupta (2):
      x86/tsx: Add a feature bit for TSX control MSR support
      x86/pm: Add enumeration check before spec MSRs save/restore setup

Peter Gonda (1):
      virt/sev-guest: Prevent IV reuse in the SNP guest driver

 arch/x86/include/asm/cpufeatures.h      |  3 ++
 arch/x86/kernel/cpu/tsx.c               | 38 +++++++--------
 arch/x86/mm/ioremap.c                   |  8 +++-
 arch/x86/power/cpu.c                    | 23 +++++----
 drivers/virt/coco/sev-guest/sev-guest.c | 84 +++++++++++++++++++++++++++------
 5 files changed, 112 insertions(+), 44 deletions(-)

-- 
Regards/Gruss,
    Boris.

SUSE Software Solutions Germany GmbH
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Martje Boudien Moerman
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