Shrink shadow page cache via MMU shrinker based on kvm_total_unused_cached_pages. Tested by running dirty_log_perf_test while dropping cache via "echo 2 > /proc/sys/vm/drop_caches" at 1 second interval. Global always return to 0. Shrinker also gets invoked to remove pages in cache. Above test were run with three configurations: - EPT=N - EPT=Y, TDP_MMU=N - EPT=Y, TDP_MMU=Y Signed-off-by: Vipin Sharma <vipinsh@xxxxxxxxxx> --- arch/x86/kvm/mmu/mmu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index b7ca31b5699c..a4bf2e433030 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -6725,6 +6725,8 @@ static unsigned long mmu_shrink_scan(struct shrinker *shrink, kvm_for_each_vcpu(i, vcpu, kvm) { freed += mmu_memory_cache_try_empty(&vcpu->arch.mmu_shadow_page_cache, &vcpu->arch.mmu_shadow_page_cache_lock); + freed += mmu_memory_cache_try_empty(&vcpu->arch.mmu_shadowed_info_cache, + &vcpu->arch.mmu_shadow_page_cache_lock); if (freed >= sc->nr_to_scan) goto out; } -- 2.40.0.rc0.216.gc4246ad0f0-goog