[PATCH] KVM: arm64: Count pKVM stage-2 usage in secondary pagetable stats
Vincent Donnefort
vdonnefort at google.com
Fri Feb 28 04:13:55 PST 2025
Count the pages used by pKVM for the guest stage-2 in memory stats under
secondary pagetable stats, similarly to what the VHE mode does.
Signed-off-by: Vincent Donnefort <vdonnefort at google.com>
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 1f55b0c7b11d..c2e022c41313 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1088,12 +1088,18 @@ void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu)
static void hyp_mc_free_fn(void *addr, void *unused)
{
+ kvm_account_pgtable_pages(addr, -1);
free_page((unsigned long)addr);
}
static void *hyp_mc_alloc_fn(void *unused)
{
- return (void *)__get_free_page(GFP_KERNEL_ACCOUNT);
+ void *addr = (void *)__get_free_page(GFP_KERNEL_ACCOUNT);
+
+ if (addr)
+ kvm_account_pgtable_pages(addr, 1);
+
+ return addr;
}
void free_hyp_memcache(struct kvm_hyp_memcache *mc)
base-commit: d082ecbc71e9e0bf49883ee4afd435a77a5101b6
--
2.48.1.711.g2feabab25a-goog
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