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

Paolo Bonzini
2022-12-12T22:33:05Z

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