linux-kernel - [PATCH v2 0/3] TDX attestation support and GHCI fixup

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Message-ID: <20250619180159.187358-1-pbonzini@redhat.com>
Date: Thu, 19 Jun 2025 14:01:56 -0400
From: Paolo Bonzini <pbonzini@...hat.com>
To: linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org,
	pbonzini@...hat.com,
	seanjc@...gle.com
Cc: rick.p.edgecombe@...el.com,
	kai.huang@...el.com,
	adrian.hunter@...el.com,
	reinette.chatre@...el.com,
	xiaoyao.li@...el.com,
	tony.lindgren@...el.com,
	isaku.yamahata@...el.com,
	yan.y.zhao@...el.com,
	mikko.ylinen@...ux.intel.com,
	kirill.shutemov@...el.com,
	jiewen.yao@...el.com,
	binbin.wu@...ux.intel.com
Subject: [PATCH v2 0/3] TDX attestation support and GHCI fixup

This is a refresh of Binbin's patches with a change to the userspace
API.  I am consolidating everything into a single KVM_EXIT_TDX and
adding to the contract that userspace is free to ignore it *except*
for having to reenter the guest with KVM_RUN.

If in the future this does not work, it should be possible to introduce
an opt-in interface.  Hopefully that will not be necessary.

Paolo

Binbin Wu (3):
  KVM: TDX: Add new TDVMCALL status code for unsupported subfuncs
  KVM: TDX: Handle TDG.VP.VMCALL<GetQuote>
  KVM: TDX: Exit to userspace for GetTdVmCallInfo

 Documentation/virt/kvm/api.rst    | 62 ++++++++++++++++++++++++-
 arch/x86/include/asm/shared/tdx.h |  1 +
 arch/x86/kvm/vmx/tdx.c            | 77 ++++++++++++++++++++++++++++---
 include/uapi/linux/kvm.h          | 22 +++++++++
 4 files changed, 154 insertions(+), 8 deletions(-)

-- 
2.43.5