[PATCH 12/16] KVM: MMU: change tdp_mmu_map_handle_target_level() arguments to kvm_page_fault

From: Paolo Bonzini
Date: Sat Aug 07 2021 - 09:50:39 EST


Pass struct kvm_page_fault to tdp_mmu_map_handle_target_level() instead of
extracting the arguments from the struct.

Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
---
arch/x86/kvm/mmu/tdp_mmu.c | 18 ++++++++----------
1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index 340ae8a34fe3..d8b1735739c0 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -937,21 +937,20 @@ void kvm_tdp_mmu_invalidate_all_roots(struct kvm *kvm)
* Installs a last-level SPTE to handle a TDP page fault.
* (NPT/EPT violation/misconfiguration)
*/
-static int tdp_mmu_map_handle_target_level(struct kvm_vcpu *vcpu, int write,
- int map_writable,
- struct tdp_iter *iter,
- kvm_pfn_t pfn, bool prefault)
+static int tdp_mmu_map_handle_target_level(struct kvm_vcpu *vcpu,
+ struct kvm_page_fault *fault,
+ struct tdp_iter *iter)
{
u64 new_spte;
int ret = RET_PF_FIXED;
int make_spte_ret = 0;

- if (unlikely(is_noslot_pfn(pfn)))
+ if (unlikely(is_noslot_pfn(fault->pfn)))
new_spte = make_mmio_spte(vcpu, iter->gfn, ACC_ALL);
else
make_spte_ret = make_spte(vcpu, ACC_ALL, iter->level, iter->gfn,
- pfn, iter->old_spte, prefault, true,
- map_writable, !shadow_accessed_mask,
+ fault->pfn, iter->old_spte, fault->prefault, true,
+ fault->map_writable, !shadow_accessed_mask,
&new_spte);

if (new_spte == iter->old_spte)
@@ -965,7 +964,7 @@ static int tdp_mmu_map_handle_target_level(struct kvm_vcpu *vcpu, int write,
* the vCPU would have the same fault again.
*/
if (make_spte_ret & SET_SPTE_WRITE_PROTECTED_PT) {
- if (write)
+ if (fault->write)
ret = RET_PF_EMULATE;
kvm_make_request(KVM_REQ_TLB_FLUSH_CURRENT, vcpu);
}
@@ -1073,8 +1072,7 @@ int kvm_tdp_mmu_map(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault)
return RET_PF_RETRY;
}

- ret = tdp_mmu_map_handle_target_level(vcpu, fault->write, fault->map_writable, &iter,
- fault->pfn, fault->prefault);
+ ret = tdp_mmu_map_handle_target_level(vcpu, fault, &iter);
rcu_read_unlock();

return ret;
--
2.27.0