linux-kernel - [PATCH v1 0/4] Share common features between AMD SEV / TDX guest

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Date:   Mon, 15 Nov 2021 16:45:24 -0800
From:   Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        Tom Lendacky <thomas.lendacky@....com>
Cc:     Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        "H . Peter Anvin" <hpa@...or.com>, Tony Luck <tony.luck@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Kirill Shutemov <kirill.shutemov@...ux.intel.com>,
        Kuppuswamy Sathyanarayanan <knsathya@...nel.org>,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1 0/4] Share common features between AMD SEV / TDX guest

Hi All,

Intel's Trust Domain Extensions (TDX) protect guest VMs from malicious
hosts and some physical attacks. TDX has a lot of similarities to AMD SEV.
Features like encryption/decryption and string I/O unroll support can
be shared between these two technologies.

This patch set adds infrastructure changes required to share the code
between AMD SEV and TDX.

Kirill A. Shutemov (1):
  x86: Move common memory encryption code to mem_encrypt.c

Kuppuswamy Sathyanarayanan (3):
  x86/sev: Remove sev_enable_key usage in outs##bwl()/ins##bwl()
  x86/sev: Use CC_ATTR attribute to generalize string I/O unroll
  x86/sev: Rename mem_encrypt.c to mem_encrypt_amd.c

 arch/x86/Kconfig              |  10 +-
 arch/x86/include/asm/io.h     |  20 +-
 arch/x86/kernel/cc_platform.c |   4 +
 arch/x86/mm/Makefile          |   7 +-
 arch/x86/mm/mem_encrypt.c     | 443 +---------------------------------
 arch/x86/mm/mem_encrypt_amd.c | 438 +++++++++++++++++++++++++++++++++
 include/linux/cc_platform.h   |  11 +
 7 files changed, 474 insertions(+), 459 deletions(-)
 create mode 100644 arch/x86/mm/mem_encrypt_amd.c

-- 
2.25.1