Merge tag 'x86-urgent-2025-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc x86 fixes from Ingo Molnar:

 - Fix hypercall detection on Xen guests

 - Extend the AMD microcode loader SHA check to Zen5, to block loading
   of any unreleased standalone Zen5 microcode patches

 - Add new Intel CPU model number for Bartlett Lake

 - Fix the workaround for AMD erratum 1054

 - Fix buggy early memory acceptance between SEV-SNP guests and the EFI
   stub

* tag 'x86-urgent-2025-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot/sev: Avoid shared GHCB page for early memory acceptance
  x86/cpu/amd: Fix workaround for erratum 1054
  x86/cpu: Add CPU model number for Bartlett Lake CPUs with Raptor Cove cores
  x86/microcode/AMD: Extend the SHA check to Zen5, block loading of any unreleased standalone Zen5 microcode patches
  x86/xen: Fix __xen_hypercall_setfunc()