KVM: arm64/mmu: count KVM s2 mmu usage in secondary pagetable stats
Count the pages used by KVM in arm64 for stage2 mmu in memory stats
under secondary pagetable stats (e.g. "SecPageTables" in /proc/meminfo)
to give better visibility into the memory consumption of KVM mmu in a
similar way to how normal user page tables are accounted.
Signed-off-by: Yosry Ahmed <yosryahmed@google.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220823004639.2387269-5-yosryahmed@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
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