linux-kernel - [PATCH RESEND v9 0/2] Support TDX guests on Hyper-V (the x86/tdx part)

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Message-Id: <20230811021246.821-1-decui@microsoft.com>
Date:   Thu, 10 Aug 2023 19:12:44 -0700
From:   Dexuan Cui <decui@...rosoft.com>
To:     x86@...nel.org, ak@...ux.intel.com, arnd@...db.de, bp@...en8.de,
        brijesh.singh@....com, dan.j.williams@...el.com,
        dave.hansen@...el.com, dave.hansen@...ux.intel.com,
        haiyangz@...rosoft.com, hpa@...or.com, jane.chu@...cle.com,
        kirill.shutemov@...ux.intel.com, kys@...rosoft.com,
        luto@...nel.org, mingo@...hat.com, peterz@...radead.org,
        rostedt@...dmis.org, sathyanarayanan.kuppuswamy@...ux.intel.com,
        seanjc@...gle.com, tglx@...utronix.de, tony.luck@...el.com,
        wei.liu@...nel.org, Jason@...c4.com, nik.borisov@...e.com,
        mikelley@...rosoft.com
Cc:     linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tianyu.Lan@...rosoft.com, rick.p.edgecombe@...el.com,
        andavis@...hat.com, mheslin@...hat.com, vkuznets@...hat.com,
        xiaoyao.li@...el.com, Dexuan Cui <decui@...rosoft.com>
Subject: [PATCH RESEND v9 0/2] Support TDX guests on Hyper-V (the x86/tdx part)

(Resending the pachset as the v9 sent on 6/23/2023 didn't draw much attention)

The two patches are based on today's tip.git's master branch.

Note: the two patches don't apply to the current x86/tdx branch, which
doesn't have commit 75d090fd167a ("x86/tdx: Add unaccepted memory support").

As Dave suggested, I moved some local variables of tdx_map_gpa() to
inside the loop. I added Sathyanarayanan's Reviewed-by.

Please review.

FWIW, the old versons are here:
v9: https://lwn.net/ml/linux-kernel/20230621191317.4129-1-decui@microsoft.com/
v8: https://lwn.net/ml/linux-kernel/20230620154830.25442-1-decui@microsoft.com/
v7: https://lwn.net/ml/linux-kernel/20230616044701.15888-1-decui%40microsoft.com/
v6: https://lwn.net/ml/linux-kernel/20230504225351.10765-1-decui@microsoft.com/

Dexuan Cui (2):
  x86/tdx: Retry TDVMCALL_MAP_GPA() when needed
  x86/tdx: Support vmalloc() for tdx_enc_status_changed()

 arch/x86/coco/tdx/tdx.c           | 87 ++++++++++++++++++++++++++-----
 arch/x86/include/asm/shared/tdx.h |  2 +
 2 files changed, 77 insertions(+), 12 deletions(-)

-- 
2.25.1