linux-kernel - [PATCH v2 0/5] TDX host: Provide TDX module metadata reading APIs

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Date: Tue, 26 Mar 2024 23:23:27 +1300
From: Kai Huang <kai.huang@...el.com>
To: linux-kernel@...r.kernel.org
Cc: x86@...nel.org,
	dave.hansen@...el.com,
	kirill.shutemov@...ux.intel.com,
	peterz@...radead.org,
	tglx@...utronix.de,
	bp@...en8.de,
	mingo@...hat.com,
	hpa@...or.com,
	seanjc@...gle.com,
	pbonzini@...hat.com,
	rick.p.edgecombe@...el.com,
	isaku.yamahata@...el.com,
	jgross@...e.com,
	binbin.wu@...ux.intel.com,
	kai.huang@...el.com
Subject: [PATCH v2 0/5] TDX host: Provide TDX module metadata reading APIs

KVM will need to read bunch of TDX module metadata fields to create and
run TDX guests.  In the long term, other in-kernel TDX users, e.g., VT-d
also likely will need to read metadata.  This series provides common APIs
in the TDX host code so that KVM can use.

v1 -> v2:
  - Collect BinBin's tag.
  - Rebase to latest Linus's tree (but can also be cleanly applied to 
    latest tip/master and tip/x86/tdx).

(I dropped KVM list from the To list to stop dumping emails to people's
 mailbox, but keep maintainers Cc'ed.)

v1: https://lore.kernel.org/lkml/cover.1709288433.git.kai.huang@intel.com/T/

Kai Huang (5):
  x86/virt/tdx: Rename _offset to _member for TD_SYSINFO_MAP() macro
  x86/virt/tdx: Move TDMR metadata fields map table to local variable
  x86/virt/tdx: Unbind global metadata read with 'struct
    tdx_tdmr_sysinfo'
  x86/virt/tdx: Support global metadata read for all element sizes
  x86/virt/tdx: Export global metadata read infrastructure

 arch/x86/include/asm/tdx.h  | 22 ++++++++++
 arch/x86/virt/vmx/tdx/tdx.c | 84 +++++++++++++++++++++----------------
 arch/x86/virt/vmx/tdx/tdx.h |  2 -
 3 files changed, 71 insertions(+), 37 deletions(-)


base-commit: 928a87efa42302a23bb9554be081a28058495f22
-- 
2.43.2