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From: Ben Gardon <bgardon@google.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>, Peter Xu <peterx@redhat.com>,
	Sean Christopherson <seanjc@google.com>,
	David Matlack <dmatlack@google.com>,
	Jim Mattson <jmattson@google.com>,
	David Dunn <daviddunn@google.com>,
	Jing Zhang <jingzhangos@google.com>,
	Junaid Shahid <junaids@google.com>,
	Ben Gardon <bgardon@google.com>
Subject: [PATCH v2 2/9] KVM: x86/mmu: Factor mt_mask out of __make_spte
Date: Mon, 21 Mar 2022 15:43:51 -0700	[thread overview]
Message-ID: <20220321224358.1305530-3-bgardon@google.com> (raw)
In-Reply-To: <20220321224358.1305530-1-bgardon@google.com>

In service of removing the vCPU pointer from __make_spte, factor the memory
type mask calculation out of __make_spte.

Signed-off-by: Ben Gardon <bgardon@google.com>
---
 arch/x86/kvm/mmu/spte.c | 12 ++++++++----
 arch/x86/kvm/mmu/spte.h |  3 ++-
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kvm/mmu/spte.c b/arch/x86/kvm/mmu/spte.c
index d3da0d3d41cb..931cf93c3b7e 100644
--- a/arch/x86/kvm/mmu/spte.c
+++ b/arch/x86/kvm/mmu/spte.c
@@ -93,7 +93,8 @@ static bool kvm_is_mmio_pfn(kvm_pfn_t pfn)
 bool __make_spte(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
 		 const struct kvm_memory_slot *slot, unsigned int pte_access,
 		 gfn_t gfn, kvm_pfn_t pfn, u64 old_spte, bool prefetch,
-		 bool can_unsync, bool host_writable, u64 *new_spte)
+		 bool can_unsync, bool host_writable, u64 mt_mask,
+		 u64 *new_spte)
 {
 	int level = sp->role.level;
 	u64 spte = SPTE_MMU_PRESENT_MASK;
@@ -130,8 +131,7 @@ bool __make_spte(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
 	if (level > PG_LEVEL_4K)
 		spte |= PT_PAGE_SIZE_MASK;
 	if (tdp_enabled)
-		spte |= static_call(kvm_x86_get_mt_mask)(vcpu, gfn,
-			kvm_is_mmio_pfn(pfn));
+		spte |= mt_mask;
 
 	if (host_writable)
 		spte |= shadow_host_writable_mask;
@@ -197,8 +197,12 @@ bool make_spte(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
 	       u64 old_spte, bool prefetch, bool can_unsync,
 	       bool host_writable, u64 *new_spte)
 {
+	u64 mt_mask = static_call(kvm_x86_get_mt_mask)(vcpu, gfn,
+						       kvm_is_mmio_pfn(pfn));
+
 	return __make_spte(vcpu, sp, slot, pte_access, gfn, pfn, old_spte,
-			   prefetch, can_unsync, host_writable, new_spte);
+			   prefetch, can_unsync, host_writable, mt_mask,
+			   new_spte);
 
 }
 
diff --git a/arch/x86/kvm/mmu/spte.h b/arch/x86/kvm/mmu/spte.h
index 3fae3c3124f7..d051f955699e 100644
--- a/arch/x86/kvm/mmu/spte.h
+++ b/arch/x86/kvm/mmu/spte.h
@@ -413,7 +413,8 @@ static inline u64 get_mmio_spte_generation(u64 spte)
 bool __make_spte(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
 		 const struct kvm_memory_slot *slot, unsigned int pte_access,
 		 gfn_t gfn, kvm_pfn_t pfn, u64 old_spte, bool prefetch,
-		 bool can_unsync, bool host_writable, u64 *new_spte);
+		 bool can_unsync, bool host_writable, u64 mt_mask,
+		 u64 *new_spte);
 bool make_spte(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
 	       const struct kvm_memory_slot *slot,
 	       unsigned int pte_access, gfn_t gfn, kvm_pfn_t pfn,
-- 
2.35.1.894.gb6a874cedc-goog


  parent reply	other threads:[~2022-03-21 22:48 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-21 22:43 [PATCH v2 0/9] KVM: x86/MMU: Optimize disabling dirty logging Ben Gardon
2022-03-21 22:43 ` [PATCH v2 1/9] KVM: x86/mmu: Move implementation of make_spte to a helper Ben Gardon
2022-03-21 22:43 ` Ben Gardon [this message]
2022-03-21 22:43 ` [PATCH v2 3/9] KVM: x86/mmu: Factor shadow_zero_check out of __make_spte Ben Gardon
2022-04-12 15:52   ` Sean Christopherson
2022-03-21 22:43 ` [PATCH v2 4/9] KVM: x86/mmu: Replace vcpu argument with kvm pointer in make_spte Ben Gardon
2022-03-21 22:43 ` [PATCH v2 5/9] KVM: x86/mmu: Factor out the meat of reset_tdp_shadow_zero_bits_mask Ben Gardon
2022-04-12 15:46   ` Sean Christopherson
2022-04-21 18:50     ` Ben Gardon
2022-04-21 19:09       ` Ben Gardon
2022-03-21 22:43 ` [PATCH v2 6/9] KVM: x86/mmu: Factor out part of vmx_get_mt_mask which does not depend on vcpu Ben Gardon
2022-03-28 18:04   ` David Matlack
2022-03-21 22:43 ` [PATCH v2 7/9] KVM: x86/mmu: Add try_get_mt_mask to x86_ops Ben Gardon
2022-04-11 23:00   ` Sean Christopherson
2022-04-11 23:24     ` Ben Gardon
2022-04-11 23:33     ` Sean Christopherson
2022-04-12 19:30     ` Sean Christopherson
2022-03-21 22:43 ` [PATCH v2 8/9] KVM: x86/mmu: Make kvm_is_mmio_pfn usable outside of spte.c Ben Gardon
2022-04-12 19:39   ` Sean Christopherson
2022-03-21 22:43 ` [PATCH v2 9/9] KVM: x86/mmu: Promote pages in-place when disabling dirty logging Ben Gardon
2022-03-28 17:45   ` David Matlack
2022-03-28 18:07     ` Ben Gardon
2022-03-28 18:20       ` David Matlack
2022-07-12 23:21       ` Sean Christopherson
2022-07-13 16:20         ` Sean Christopherson
2022-03-28 18:21   ` David Matlack
2022-04-12 16:43   ` Sean Christopherson
2022-04-25 18:09     ` Ben Gardon
2022-03-25 12:00 ` [PATCH v2 0/9] KVM: x86/MMU: Optimize " Paolo Bonzini
2022-07-12  1:37   ` Sean Christopherson
2022-07-14  7:55     ` Paolo Bonzini
2022-07-14 15:27       ` Sean Christopherson
2022-03-28 17:49 ` David Matlack

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