From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 24 Jan 2025 13:58:31 +0000 (-0800)
Subject: Merge tag 'x86_tdx_for_6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git... 
X-Git-Tag: v6.14-rc1~118
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=113691ce9f321c6d3d4da0cae2bfc233403251dc;p=thirdparty%2Flinux.git

Merge tag 'x86_tdx_for_6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 TDX updates from Dave Hansen:
 "Intel Trust Domain updates.

  The existing TDX code needs a _bit_ of metadata from the TDX module.
  But KVM is going to need a bunch more very shortly. Rework the
  interface with the TDX module to be more consistent and handle the new
  higher volume.

  The TDX module has added a few new features. The first is a promise
  not to clobber RBP under any circumstances. Basically the kernel now
  will refuse to use any modules that don't have this promise. Second,
  enable the new "REDUCE_VE" feature. This ensures that the TDX module
  will not send some silly virtualization exceptions that the guest had
  no good way to handle anyway.

   - Centralize global metadata infrastructure

   - Use new TDX module features for exception suppression and RBP
     clobbering"

* tag 'x86_tdx_for_6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/virt/tdx: Require the module to assert it has the NO_RBP_MOD mitigation
  x86/virt/tdx: Switch to use auto-generated global metadata reading code
  x86/virt/tdx: Use dedicated struct members for PAMT entry sizes
  x86/virt/tdx: Use auto-generated code to read global metadata
  x86/virt/tdx: Start to track all global metadata in one structure
  x86/virt/tdx: Rename 'struct tdx_tdmr_sysinfo' to reflect the spec better
  x86/tdx: Dump attributes and TD_CTLS on boot
  x86/tdx: Disable unnecessary virtualization exceptions
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113691ce9f321c6d3d4da0cae2bfc233403251dc