[v7,14/23] KVM: x86/mmu: Pass const memslot to rmap_add()

Message ID	20220622192710.2547152-15-pbonzini@redhat.com
State	Accepted
Headers	show Return-Path: <kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org> From: Paolo Bonzini <pbonzini@redhat.com> To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: maz@kernel.org, anup@brainfault.org, seanjc@google.com, bgardon@google.com, peterx@redhat.com, maciej.szmigiero@oracle.com, kvmarm@lists.cs.columbia.edu, linux-mips@vger.kernel.org, kvm-riscv@lists.infradead.org, pfeiner@google.com, jiangshanlai@gmail.com, dmatlack@google.com Subject: [PATCH v7 14/23] KVM: x86/mmu: Pass const memslot to rmap_add() Date: Wed, 22 Jun 2022 15:27:01 -0400 Message-Id: <20220622192710.2547152-15-pbonzini@redhat.com> In-Reply-To: <20220622192710.2547152-1-pbonzini@redhat.com> References: <20220622192710.2547152-1-pbonzini@redhat.com> MIME-Version: 1.0 preview: From: David Matlack <dmatlack@google.com> Constify rmap_add()'s @slot parameter; it is simply passed on to gfn_to_rmap(), which takes a const memslot. No functional change intended. Content analysis details: (-1.1 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [170.10.133.124 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 SPF_NONE SPF: sender does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.2 DKIMWL_WL_HIGH DKIMwl.org - High trust sender Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kvm-riscv" <kvm-riscv-bounces@lists.infradead.org> Errors-To: kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org
Series	KVM: Extend Eager Page Splitting to the shadow MMU \| expand [v7,00/23] KVM: Extend Eager Page Splitting to the shadow MMU [v7,01/23] KVM: x86/mmu: Optimize MMU page cache lookup for all direct SPs [v7,02/23] KVM: x86/mmu: Use a bool for direct [v7,03/23] KVM: x86/mmu: Stop passing "direct" to mmu_alloc_root() [v7,04/23] KVM: x86/mmu: Derive shadow MMU page role from parent [v7,05/23] KVM: x86/mmu: Always pass 0 for @quadrant when gptes are 8 bytes [v7,06/23] KVM: x86/mmu: Decompose kvm_mmu_get_page() into separate functions [v7,07/23] KVM: x86/mmu: Consolidate shadow page allocation and initialization [v7,08/23] KVM: x86/mmu: Rename shadow MMU functions that deal with shadow pages [v7,09/23] KVM: x86/mmu: Move guest PT write-protection to account_shadowed() [v7,10/23] KVM: x86/mmu: Pass memory caches to allocate SPs separately [v7,11/23] KVM: x86/mmu: Replace vcpu with kvm in kvm_mmu_alloc_shadow_page() [v7,12/23] KVM: x86/mmu: Pass kvm pointer separately from vcpu to kvm_mmu_find_shadow_page() [v7,13/23] KVM: x86/mmu: Allow NULL @vcpu in kvm_mmu_find_shadow_page() [v7,14/23] KVM: x86/mmu: Pass const memslot to rmap_add() [v7,15/23] KVM: x86/mmu: Decouple rmap_add() and link_shadow_page() from kvm_vcpu [v7,16/23] KVM: x86/mmu: Update page stats in __rmap_add() [v7,17/23] KVM: x86/mmu: Cache the access bits of shadowed translations [v7,18/23] KVM: x86/mmu: Extend make_huge_page_split_spte() for the shadow MMU [v7,19/23] KVM: x86/mmu: Zap collapsible SPTEs in shadow MMU at all possible levels [v7,20/23] KVM: x86/mmu: pull call to drop_large_spte() into __link_shadow_page() [v7,21/23] KVM: Allow for different capacities in kvm_mmu_memory_cache structs [v7,22/23] KVM: x86/mmu: Extend Eager Page Splitting to nested MMUs [v7,23/23] KVM: x86/mmu: Avoid unnecessary flush on eager page split

Message ID

20220622192710.2547152-15-pbonzini@redhat.com

State

Accepted

Headers

From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org
Cc: maz@kernel.org,
	anup@brainfault.org,
	seanjc@google.com,
	bgardon@google.com,
	peterx@redhat.com,
	maciej.szmigiero@oracle.com,
	kvmarm@lists.cs.columbia.edu,
	linux-mips@vger.kernel.org,
	kvm-riscv@lists.infradead.org,
	pfeiner@google.com,
	jiangshanlai@gmail.com,
	dmatlack@google.com
Subject: [PATCH v7 14/23] KVM: x86/mmu: Pass const memslot to rmap_add()
Date: Wed, 22 Jun 2022 15:27:01 -0400
Message-Id: <20220622192710.2547152-15-pbonzini@redhat.com>
In-Reply-To: <20220622192710.2547152-1-pbonzini@redhat.com>
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Series

KVM: Extend Eager Page Splitting to the shadow MMU | expand

Commit Message

Paolo Bonzini June 22, 2022, 7:27 p.m. UTC

From: David Matlack <dmatlack@google.com>

Constify rmap_add()'s @slot parameter; it is simply passed on to
gfn_to_rmap(), which takes a const memslot.

No functional change intended.

Reviewed-by: Ben Gardon <bgardon@google.com>
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20220516232138.1783324-15-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/mmu/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index a7748c5a2385..45a4e85c0b2c 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -1556,7 +1556,7 @@  static bool kvm_test_age_rmapp(struct kvm *kvm, struct kvm_rmap_head *rmap_head,
 
 #define RMAP_RECYCLE_THRESHOLD 1000
 
-static void rmap_add(struct kvm_vcpu *vcpu, struct kvm_memory_slot *slot,
+static void rmap_add(struct kvm_vcpu *vcpu, const struct kvm_memory_slot *slot,
 		     u64 *spte, gfn_t gfn)
 {
 	struct kvm_mmu_page *sp;

[v7,14/23] KVM: x86/mmu: Pass const memslot to rmap_add()

Commit Message

Patch