Commit cb502f0e5e87 for kernel

commit cb502f0e5e87f769417691c7060a358a8b117c22
Merge: d7489818348e 73029e73ccd0
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Tue Dec 2 13:07:53 2025 -0800

    Merge tag 'x86_sev_for_v6.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

    Pull x86 SEV updates from Borislav Petkov:

     - Largely cleanups along with a change to save XSS to the GHCB
       (Guest-Host Communication Block) in SEV-ES guests so that the
       hypervisor can determine the guest's XSAVES buffer size properly
       and thus support shadow stacks in AMD confidential guests

    * tag 'x86_sev_for_v6.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
      x86/cc: Fix enum spelling to fix kernel-doc warnings
      x86/boot: Drop unused sev_enable() fallback
      x86/coco/sev: Convert has_cpuflag() to use cpu_feature_enabled()
      x86/sev: Include XSS value in GHCB CPUID request
      x86/boot: Move boot_*msr helpers to asm/shared/msr.h