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KVM: MIPS: defer flush to generic MMU notifier code

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Return 1 from kvm_unmap_hva_range and kvm_set_spte_hva if a flush is
needed, so that the generic code can coalesce the flushes.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2021-03-31 09:40:39 +02:00
parent 566a0beef5
commit fe9a5b0551
1 changed files with 2 additions and 9 deletions
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11
arch/mips/kvm/mmu.c
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@ -489,9 +489,7 @@ static int kvm_unmap_hva_handler(struct kvm *kvm, gfn_t gfn, gfn_t gfn_end,
int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
unsigned flags)
{
handle_hva_to_gpa(kvm, start, end, &kvm_unmap_hva_handler, NULL);
kvm_flush_remote_tlbs(kvm);
return 0;
return handle_hva_to_gpa(kvm, start, end, &kvm_unmap_hva_handler, NULL);
}
static int kvm_set_spte_handler(struct kvm *kvm, gfn_t gfn, gfn_t gfn_end,
@ -528,12 +526,7 @@ static int kvm_set_spte_handler(struct kvm *kvm, gfn_t gfn, gfn_t gfn_end,
int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
{
unsigned long end = hva + PAGE_SIZE;
int ret;
ret = handle_hva_to_gpa(kvm, hva, end, &kvm_set_spte_handler, &pte);
if (ret)
kvm_flush_remote_tlbs(kvm);
return 0;
return handle_hva_to_gpa(kvm, hva, end, &kvm_set_spte_handler, &pte);
}
static int kvm_age_hva_handler(struct kvm *kvm, gfn_t gfn, gfn_t gfn_end,