Merge tag 'x86_tdx_for_7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tipHEADmaster

Pull x86 TDX updates from Dave Hansen:
 "There are a few cleanups, and some changes that should allow TDX and
  kexec to coexist nicely.

  The biggest change, however, is support for updating the TDX module
  after boot, just like CPU microcode. TDX users really want this
  because it lets them do security updates without tearing things down
  and rebooting.

   - Add TDX module update support

   - Make kexec and TDX finally place nice together

   - Put TDX error codes into a single header"

* tag 'x86_tdx_for_7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (30 commits)
  x86/virt/tdx: Document TDX module update
  x86/virt/tdx: Enable TDX module runtime updates
  x86/virt/tdx: Refresh TDX module version after update
  coco/tdx-host: Lock out module updates when reading version
  x86/virt/seamldr: Add module update locking
  x86/virt/tdx: Restore TDX module state
  x86/virt/seamldr: Initialize the newly-installed TDX module
  x86/virt/seamldr: Install a new TDX module
  x86/virt/tdx: Reset software states during TDX module shutdown
  x86/virt/seamldr: Shut down the current TDX module
  x86/virt/seamldr: Abort updates after a failed step
  x86/virt/seamldr: Introduce skeleton for TDX module updates
  x86/virt/seamldr: Allocate and populate a module update request
  coco/tdx-host: Implement firmware upload sysfs ABI for TDX module updates
  coco/tdx-host: Don't expose P-SEAMLDR information on CPUs with erratum
  coco/tdx-host: Expose P-SEAMLDR information via sysfs
  x86/virt/seamldr: Add a helper to retrieve P-SEAMLDR information
  x86/virt/seamldr: Introduce a wrapper for P-SEAMLDR SEAMCALLs
  coco/tdx-host: Expose TDX module version
  coco/tdx-host: Introduce a "tdx_host" device
  ...

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