linux-kernel - [PATCH v2 0/6] Support TDX guests on Hyper-V

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Message-Id: <20221207003325.21503-1-decui@microsoft.com>
Date:   Tue,  6 Dec 2022 16:33:19 -0800
From:   Dexuan Cui <decui@...rosoft.com>
To:     ak@...ux.intel.com, arnd@...db.de, bp@...en8.de,
        brijesh.singh@....com, dan.j.williams@...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, linux-arch@...r.kernel.org,
        linux-hyperv@...r.kernel.org, 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,
        x86@...nel.org, mikelley@...rosoft.com
Cc:     linux-kernel@...r.kernel.org, Dexuan Cui <decui@...rosoft.com>
Subject: [PATCH v2 0/6] Support TDX guests on Hyper-V

This patchset adds the Hyper-V specific code so that a TDX guest can run
on Hyper-V. Please review. Thanks!

v1 is here:
https://lwn.net/ml/linux-kernel/20221121195151.21812-1-decui@microsoft.com/

I think I addressed all the comments received against v1. Please let me
know in case I missed anything.

I added a section "changes in v2" in each patch: in patch 0002, the
section contains a few questions. Please refer to the patch.

This v2 pathset is based on the hyperv-next branch:
https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git/log/?h=hyperv-next

Thanks,
Dexuan

Dexuan Cui (5):
  x86/tdx: Retry TDVMCALL_MAP_GPA() when needed
  x86/tdx: Support vmalloc() for tdx_enc_status_changed()
  x86/hyperv: Add hv_isolation_type_tdx() to detect TDX guests
  x86/hyperv: Support hypercalls for TDX guests
  Drivers: hv: vmbus: Support TDX guests

Kirill A. Shutemov (1):
  x86/tdx: Expand __tdx_hypercall() to handle more arguments

 arch/x86/coco/tdx/tdcall.S         |  82 +++++++++++++++------
 arch/x86/coco/tdx/tdx.c            | 113 ++++++++++++++++++++++-------
 arch/x86/hyperv/hv_init.c          |  27 ++++++-
 arch/x86/hyperv/ivm.c              |  28 +++++++
 arch/x86/include/asm/hyperv-tlfs.h |   3 +-
 arch/x86/include/asm/mshyperv.h    |  20 +++++
 arch/x86/include/asm/shared/tdx.h  |   6 ++
 arch/x86/kernel/asm-offsets.c      |   6 ++
 arch/x86/kernel/cpu/mshyperv.c     |  22 +++++-
 arch/x86/mm/pat/set_memory.c       |   2 +-
 drivers/hv/connection.c            |   4 +-
 drivers/hv/hv.c                    |  60 ++++++++++++++-
 drivers/hv/hv_common.c             |  12 +++
 drivers/hv/ring_buffer.c           |   2 +-
 include/asm-generic/mshyperv.h     |   2 +
 15 files changed, 328 insertions(+), 61 deletions(-)

-- 
2.25.1