From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: isaku.yamahata@intel.com, David Matlack <dmatlack@google.com>,
seanjc@google.com, peterx@redhat.com
Subject: [PATCH 11/16] KVM: MMU: change kvm_tdp_mmu_map() arguments to kvm_page_fault
Date: Sat, 7 Aug 2021 09:49:31 -0400 [thread overview]
Message-ID: <20210807134936.3083984-12-pbonzini@redhat.com> (raw)
In-Reply-To: <20210807134936.3083984-1-pbonzini@redhat.com>
Pass struct kvm_page_fault to kvm_tdp_mmu_map() instead of
extracting the arguments from the struct.
Suggested-by: Isaku Yamahata <isaku.yamahata@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/kvm/mmu/mmu.c | 3 +--
arch/x86/kvm/mmu/tdp_mmu.c | 23 +++++++++--------------
arch/x86/kvm/mmu/tdp_mmu.h | 4 +---
3 files changed, 11 insertions(+), 19 deletions(-)
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 624277da4586..75635fc0720d 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -3916,8 +3916,7 @@ static int direct_page_fault(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault
goto out_unlock;
if (is_tdp_mmu_fault)
- r = kvm_tdp_mmu_map(vcpu, gpa, error_code, fault->map_writable, fault->max_level,
- fault->pfn, fault->prefault);
+ r = kvm_tdp_mmu_map(vcpu, fault);
else
r = __direct_map(vcpu, fault);
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index dab6cb46cdb2..340ae8a34fe3 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -994,35 +994,30 @@ static int tdp_mmu_map_handle_target_level(struct kvm_vcpu *vcpu, int write,
* Handle a TDP page fault (NPT/EPT violation/misconfiguration) by installing
* page tables and SPTEs to translate the faulting guest physical address.
*/
-int kvm_tdp_mmu_map(struct kvm_vcpu *vcpu, gpa_t gpa, u32 error_code,
- int map_writable, int max_level, kvm_pfn_t pfn,
- bool prefault)
+int kvm_tdp_mmu_map(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault)
{
bool nx_huge_page_workaround_enabled = is_nx_huge_page_enabled();
- bool write = error_code & PFERR_WRITE_MASK;
- bool exec = error_code & PFERR_FETCH_MASK;
- bool huge_page_disallowed = exec && nx_huge_page_workaround_enabled;
+ bool huge_page_disallowed = fault->exec && nx_huge_page_workaround_enabled;
struct kvm_mmu *mmu = vcpu->arch.mmu;
struct tdp_iter iter;
struct kvm_mmu_page *sp;
u64 *child_pt;
u64 new_spte;
int ret;
- gfn_t gfn = gpa >> PAGE_SHIFT;
int level;
int req_level;
- level = kvm_mmu_hugepage_adjust(vcpu, gfn, max_level, &pfn,
+ level = kvm_mmu_hugepage_adjust(vcpu, fault->gfn, fault->max_level, &fault->pfn,
huge_page_disallowed, &req_level);
- trace_kvm_mmu_spte_requested(gpa, level, pfn);
+ trace_kvm_mmu_spte_requested(fault->addr, level, fault->pfn);
rcu_read_lock();
- tdp_mmu_for_each_pte(iter, mmu, gfn, gfn + 1) {
+ tdp_mmu_for_each_pte(iter, mmu, fault->gfn, fault->gfn + 1) {
if (nx_huge_page_workaround_enabled)
- disallowed_hugepage_adjust(iter.old_spte, gfn,
- iter.level, &pfn, &level);
+ disallowed_hugepage_adjust(iter.old_spte, fault->gfn,
+ iter.level, &fault->pfn, &level);
if (iter.level == level)
break;
@@ -1078,8 +1073,8 @@ int kvm_tdp_mmu_map(struct kvm_vcpu *vcpu, gpa_t gpa, u32 error_code,
return RET_PF_RETRY;
}
- ret = tdp_mmu_map_handle_target_level(vcpu, write, map_writable, &iter,
- pfn, prefault);
+ ret = tdp_mmu_map_handle_target_level(vcpu, fault->write, fault->map_writable, &iter,
+ fault->pfn, fault->prefault);
rcu_read_unlock();
return ret;
diff --git a/arch/x86/kvm/mmu/tdp_mmu.h b/arch/x86/kvm/mmu/tdp_mmu.h
index b224d126adf9..330d43d09e97 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.h
+++ b/arch/x86/kvm/mmu/tdp_mmu.h
@@ -51,9 +51,7 @@ void kvm_tdp_mmu_zap_all(struct kvm *kvm);
void kvm_tdp_mmu_invalidate_all_roots(struct kvm *kvm);
void kvm_tdp_mmu_zap_invalidated_roots(struct kvm *kvm);
-int kvm_tdp_mmu_map(struct kvm_vcpu *vcpu, gpa_t gpa, u32 error_code,
- int map_writable, int max_level, kvm_pfn_t pfn,
- bool prefault);
+int kvm_tdp_mmu_map(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault);
bool kvm_tdp_mmu_unmap_gfn_range(struct kvm *kvm, struct kvm_gfn_range *range,
bool flush);
--
2.27.0
next prev parent reply other threads:[~2021-08-07 13:50 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-07 13:49 [PATCH 00/16] KVM: x86: pass arguments on the page fault path via struct kvm_page_fault Paolo Bonzini
2021-08-07 13:49 ` [PATCH 01/16] KVM: MMU: pass unadulterated gpa to direct_page_fault Paolo Bonzini
2021-09-01 22:54 ` Sean Christopherson
2021-08-07 13:49 ` [PATCH 02/16] KVM: x86: clamp host mapping level to max_level in kvm_mmu_max_mapping_level Paolo Bonzini
2021-08-13 16:28 ` Sean Christopherson
2021-08-07 13:49 ` [PATCH 03/16] KVM: MMU: Introduce struct kvm_page_fault Paolo Bonzini
2021-08-07 13:49 ` [PATCH 04/16] KVM: MMU: change mmu->page_fault() arguments to kvm_page_fault Paolo Bonzini
2021-08-07 13:49 ` [PATCH 05/16] KVM: MMU: change direct_page_fault() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 06/16] KVM: MMU: change page_fault_handle_page_track() " Paolo Bonzini
2021-09-01 23:04 ` Sean Christopherson
2021-08-07 13:49 ` [PATCH 07/16] KVM: MMU: change try_async_pf() " Paolo Bonzini
2021-09-01 23:05 ` Sean Christopherson
2021-08-07 13:49 ` [PATCH 08/16] KVM: MMU: change handle_abnormal_pfn() " Paolo Bonzini
2021-09-01 23:15 ` Sean Christopherson
2021-08-07 13:49 ` [PATCH 09/16] KVM: MMU: change __direct_map() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 10/16] KVM: MMU: change FNAME(fetch)() " Paolo Bonzini
2021-08-07 13:49 ` Paolo Bonzini [this message]
2021-08-07 13:49 ` [PATCH 12/16] KVM: MMU: change tdp_mmu_map_handle_target_level() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 13/16] KVM: MMU: change fast_page_fault() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 14/16] KVM: MMU: change kvm_mmu_hugepage_adjust() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 15/16] KVM: MMU: change disallowed_hugepage_adjust() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 16/16] KVM: MMU: change tracepoints " Paolo Bonzini
2021-09-01 23:28 ` Sean Christopherson
2021-08-12 17:44 ` [PATCH 00/16] KVM: x86: pass arguments on the page fault path via struct kvm_page_fault David Matlack
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