[PATCH 08/17] KVM: arm64: Kill topup_memcache from kvm_s2_fault
Marc Zyngier
maz at kernel.org
Mon Mar 16 10:54:41 PDT 2026
The topup_memcache field can be easily replaced by the equivalent
conditions, and the resulting code is not much worse.
Signed-off-by: Marc Zyngier <maz at kernel.org>
---
arch/arm64/kvm/mmu.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 11820e39ad8e1..abe239752c696 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1712,7 +1712,6 @@ static short kvm_s2_resolve_vma_size(const struct kvm_s2_fault_desc *s2fd,
struct kvm_s2_fault {
bool writable;
- bool topup_memcache;
bool mte_allowed;
bool is_vma_cacheable;
bool s2_force_noncacheable;
@@ -1983,7 +1982,6 @@ static int user_mem_abort(const struct kvm_s2_fault_desc *s2fd)
.logging_active = logging_active,
.force_pte = logging_active,
.prot = KVM_PGTABLE_PROT_R,
- .topup_memcache = !perm_fault || (logging_active && kvm_is_write_fault(s2fd->vcpu)),
};
void *memcache;
int ret;
@@ -1994,9 +1992,11 @@ static int user_mem_abort(const struct kvm_s2_fault_desc *s2fd)
* only exception to this is when dirty logging is enabled at runtime
* and a write fault needs to collapse a block entry into a table.
*/
- ret = prepare_mmu_memcache(s2fd->vcpu, fault.topup_memcache, &memcache);
- if (ret)
- return ret;
+ if (!perm_fault || (logging_active && kvm_is_write_fault(s2fd->vcpu))) {
+ ret = prepare_mmu_memcache(s2fd->vcpu, true, &memcache);
+ if (ret)
+ return ret;
+ }
/*
* Let's check if we will get back a huge fault->page backed by hugetlbfs, or
--
2.47.3
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