linux-kernel - [PATCHv4 0/3] An updated version of the load_unaligned

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Date:   Tue, 14 Jun 2022 15:01:32 +0300
From:   "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...el.com, luto@...nel.org, peterz@...radead.org
Cc:     ak@...ux.intel.com, dan.j.williams@...el.com, david@...hat.com,
        hpa@...or.com, linux-kernel@...r.kernel.org,
        sathyanarayanan.kuppuswamy@...ux.intel.com, seanjc@...gle.com,
        thomas.lendacky@....com, x86@...nel.org,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: [PATCHv4 0/3] An updated version of the load_unaligned_zeropad() fix

An updated version of the load_unaligned_zeropad() fix.

v4:
 - Allow unaligned MMIO access, but fail split page accesses;
 - Explicit switch() in ve_instr_len() helper;
 - Update comments;
v3:
 - Rework load_unaligned_zeropad() fix: fail misaligned MMIO accesses
   instead of upfront exception fixups;
 - Add ve_instr_len() helper to wrap access to ve->instr_len;
 - Add Reviewed-by from Sathya;
v2:
 - Clarify RIP adjustments during #VE handling;
 - Fix early #VE handling;
 - Fix comment and commit message;

Kirill A. Shutemov (3):
  x86/tdx: Fix early #VE handling
  x86/tdx: Clarify RIP adjustments in #VE handler
  x86/tdx: Handle load_unaligned_zeropad() page-cross to a shared page

 arch/x86/coco/tdx/tdx.c | 187 +++++++++++++++++++++++++++++-----------
 1 file changed, 136 insertions(+), 51 deletions(-)

-- 
2.35.1