linux-kernel - [PATCH v3 0/6] Support TDX guests on Hyper-V

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Date:   Mon,  6 Feb 2023 11:24:13 -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, Tianyu.Lan@...rosoft.com,
        Dexuan Cui <decui@...rosoft.com>
Subject: [PATCH v3 0/6] Support TDX guests on Hyper-V

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

FYI, v1 and v2 are here:
https://lwn.net/ml/linux-kernel/20221121195151.21812-1-decui@microsoft.com/
https://lwn.net/ml/linux-kernel/20221207003325.21503-7-decui@microsoft.com/

This v3 pathset is based on tip.git's x86/tdx branch:
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/log/?h=x86/tdx
(The x86/tdx branch now has Kirill's patch "x86/tdx: Expand __tdx_hypercall() to handle more arguments")

If you want to view the patches on github, it is in this branch:
https://github.com/dcui/tdx/commits/decui/upstream-tip/x86/tdx/2023-0205

This v3 patchset can also apply cleanly to:
https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git/log/?h=hyperv-next

Thanks,
Dexuan

Dexuan Cui (6):
  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
  x86/hyperv: Fix serial console interrupts for TDX guests

 arch/x86/coco/tdx/tdx.c            | 113 ++++++++++++++++++++++-------
 arch/x86/hyperv/hv_apic.c          |   6 +-
 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/kernel/cpu/mshyperv.c     |  50 ++++++++++++-
 arch/x86/mm/pat/set_memory.c       |   2 +-
 drivers/hv/connection.c            |   4 +-
 drivers/hv/hv.c                    |  62 ++++++++++++++--
 drivers/hv/hv_common.c             |  33 +++++++++
 drivers/hv/ring_buffer.c           |   2 +-
 include/asm-generic/mshyperv.h     |   2 +
 13 files changed, 309 insertions(+), 43 deletions(-)

-- 
2.25.1