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d75b484605
KVM x86 misc changes for 7.3 - Fix VPID virtualization bugs where KVM would fail to flush hardware TLBs. - Harden the SNP and TDX "populate" ioctls against bad input, and to prepare for supporting in-place private<=>shared conversion. - Fix a variety of #DB priority bugs. - Fix a class of races related to enabling Hyper-V emulation on a vCPU after the vCPU is visible to the rest of KVM. - Use static calls for nested virtualization ops. - Move more KVM-internal code out of x86's kvm_host.h. - Enumerate support for a variety of Zhaoxin instructions that don't require explicit virtualization. - Fix missing EFER validation bugs, including in the KVM_SET_SREGS* path. - Harden kvm_vcpu_map() against double-mapping and thus leaking references. - Misc fixes and cleanups, e.g. for largely benign syzkaller splats.