Merge tag 'kvm-x86-misc-6.4' of https://github.com/kvm-x86/linux into HEAD

Merge tag 'kvm-x86-misc-6.4' of https://github.com/kvm-x86/linux into HEAD

KVM x86 changes for 6.4:

 - Optimize CR0.WP toggling by avoiding an MMU reload when TDP is enabled,
   and by giving the guest control of CR0.WP when EPT is enabled on VMX
   (VMX-only because SVM doesn't support per-bit controls)

 - Add CR0/CR4 helpers to query single bits, and clean up related code
   where KVM was interpreting kvm_read_cr4_bits()'s "unsigned long" return
   as a bool

 - Move AMD_PSFD to cpufeatures.h and purge KVM's definition

 - Misc cleanups