KVM: arm64: Size the stage-2 memcache from the fault MMU

topup_mmu_memcache() sizes the page-table cache from
vcpu->arch.hw_mmu, which is the MMU that faulted.

Pass the target s2fd->mmu instead, so the mmu used can be controlled by the
caller.

For a guest abort this is vcpu->arch.hw_mmu, so this commit introduces no
functional change in practice.

However, it's necessary for a future change which introduces stage 2
pre-faulting which must always target the canonical MMU regardless of the
vCPU's last-run context.

No functional change intended.

Reviewed-by: Oliver Upton <oupton@kernel.org>
Reviewed-by: Fuad Tabba <fuad.tabba@linux.dev>
Signed-off-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Tested-by: Fuad Tabba <fuad.tabba@linux.dev>
Link: https://patch.msgid.link/20260923-kvm-arm-prefault-v4-7-d4b0b4dfa8c3@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>

0 files changed, 0 insertions, 0 deletions