[RFC PATCH 06/37] KVM: MMU: Move struct kvm_mmu_page to common code

Paolo Bonzini pbonzini at redhat.com
Mon Dec 12 14:32:34 PST 2022


On 12/8/22 20:38, David Matlack wrote:
> This commit increases the size of struct kvm_mmu_page by 64 bytes on
> x86_64 (184 bytes -> 248 bytes). The size of this struct can be reduced
> in future commits by moving TDP MMU root fields into a separate struct
> and by dynamically allocating fields only used by the Shadow MMU.

I think it's already possible to use a union like

	union {
		struct kvm_mmu_page_arch arch;
		struct {
			struct work_struct work;
			void *data;
		};
	};

Paolo




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