On Fri, Apr 24, 2026 at 11:27:03AM +0100, David Woodhouse wrote: > > Fred is already removing all the usage of kvm_vcpu_map() in nested VMX¹ > and nested SVM probably wants the same treatment. And the PowerPC one > looks like it could just as easily operate on the userspace address? > > Could we just kill kvm_vcpu_map() completely?
Thanks David! I think I'd need at least input from the maintainers on this but just by code inspection, the kvm_vcpu_map() usage in sev.c seems a bit tricky. Unmapping doesn't happen until right before switching to the guest, so this might fall into the "keep the mapping around for a longer time" category [1]. [1] https://lore.kernel.org/kvm/[email protected]/ > > > > ¹ https://lore.kernel.org/kvm/[email protected]/
