Add a helper to account pages used by KVM for page tables in secondary pagetable stats. This function will be used by subsequent patches in different archs. Signed-off-by: Yosry Ahmed <yosryahmed@xxxxxxxxxx> --- include/linux/kvm_host.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 252ee4a61b58..54cc4634053c 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -2221,6 +2221,15 @@ static inline void kvm_handle_signal_exit(struct kvm_vcpu *vcpu) } #endif /* CONFIG_KVM_XFER_TO_GUEST_WORK */ +/* + * If nr > 1, we assume virt is the address of the first page of a block of + * pages that were allocated together (i.e accounted together). + */ +static inline void kvm_account_pgtable_pages(void *virt, int nr) +{ + mod_lruvec_page_state(virt_to_page(virt), NR_SECONDARY_PAGETABLE, nr); +} + /* * This defines how many reserved entries we want to keep before we * kick the vcpu to the userspace to avoid dirty ring full. This -- 2.36.0.464.gb9c8b46e94-goog