[PATCH v4 0/6] Support TDX guests on Hyper-V

[Dexuan Cui <decui@microsoft.com>]

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

This v4 patchset is based on Michael Kelley's v7 DDA patchset:
https://github.com/kelleymh/linux/commits/v7
Michael's patches are being merged into the upstream (some of the
patches are already in tip.git and the others are going upstream via
the Hyper-V tree).

This v4 patchset addressed the comments from Kirill, Sathyanarayanan
and Michael. Please see each patch's log message for the changes.

If you want to view the patches on github, it is also in this branch:
https://github.com/dcui/tdx/commits/decui/michaelv7dda/tdx/v4

FYI, v1-v3 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/
https://lwn.net/ml/linux-kernel/20230206192419.24525-1-decui@microsoft.com/

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            | 122 ++++++++++++++++++++++-------
 arch/x86/hyperv/hv_apic.c          |   6 +-
 arch/x86/hyperv/hv_init.c          |  27 ++++++-
 arch/x86/hyperv/ivm.c              |  20 +++++
 arch/x86/include/asm/hyperv-tlfs.h |   3 +-
 arch/x86/include/asm/mshyperv.h    |  20 +++++
 arch/x86/kernel/cpu/mshyperv.c     |  43 ++++++++++
 drivers/hv/hv.c                    |  62 +++++++++++++--
 drivers/hv/hv_common.c             |  30 +++++++
 include/asm-generic/mshyperv.h     |   1 +
 10 files changed, 295 insertions(+), 39 deletions(-)

-- 
2.25.1