From: David Matlack <dmatlack@google.com> To: Paolo Bonzini <pbonzini@redhat.com> Cc: Marc Zyngier <maz@kernel.org>, Huacai Chen <chenhuacai@kernel.org>, Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>, Anup Patel <anup@brainfault.org>, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Sean Christopherson <seanjc@google.com>, Andrew Jones <drjones@redhat.com>, Ben Gardon <bgardon@google.com>, Peter Xu <peterx@redhat.com>, maciej.szmigiero@oracle.com, "moderated list:KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64)" <kvmarm@lists.cs.columbia.edu>, "open list:KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips)" <linux-mips@vger.kernel.org>, "open list:KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips)" <kvm@vger.kernel.org>, "open list:KERNEL VIRTUAL MACHINE FOR RISC-V (KVM/riscv)" <kvm-riscv@lists.infradead.org>, Peter Feiner <pfeiner@google.com>, Lai Jiangshan <jiangshanlai@gmail.com>, David Matlack <dmatlack@google.com> Subject: [PATCH v6 08/22] KVM: x86/mmu: Rename shadow MMU functions that deal with shadow pages Date: Mon, 16 May 2022 23:21:24 +0000 [thread overview] Message-ID: <20220516232138.1783324-9-dmatlack@google.com> (raw) In-Reply-To: <20220516232138.1783324-1-dmatlack@google.com> Rename 2 functions: kvm_mmu_get_page() -> kvm_mmu_get_shadow_page() kvm_mmu_free_page() -> kvm_mmu_free_shadow_page() This change makes it clear that these functions deal with shadow pages rather than struct pages. It also aligns these functions with the naming scheme for kvm_mmu_find_shadow_page() and kvm_mmu_alloc_shadow_page(). Prefer "shadow_page" over the shorter "sp" since these are core functions and the line lengths aren't terrible. No functional change intended. Reviewed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: David Matlack <dmatlack@google.com> --- arch/x86/kvm/mmu/mmu.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 0b14097f8771..d342fcc5813d 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -1652,7 +1652,7 @@ static inline void kvm_mod_used_mmu_pages(struct kvm *kvm, long nr) percpu_counter_add(&kvm_total_used_mmu_pages, nr); } -static void kvm_mmu_free_page(struct kvm_mmu_page *sp) +static void kvm_mmu_free_shadow_page(struct kvm_mmu_page *sp) { MMU_WARN_ON(!is_empty_shadow_page(sp->spt)); hlist_del(&sp->hash_link); @@ -2107,8 +2107,9 @@ static struct kvm_mmu_page *kvm_mmu_alloc_shadow_page(struct kvm_vcpu *vcpu, return sp; } -static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu, gfn_t gfn, - union kvm_mmu_page_role role) +static struct kvm_mmu_page *kvm_mmu_get_shadow_page(struct kvm_vcpu *vcpu, + gfn_t gfn, + union kvm_mmu_page_role role) { struct hlist_head *sp_list; struct kvm_mmu_page *sp; @@ -2172,7 +2173,7 @@ static struct kvm_mmu_page *kvm_mmu_get_child_sp(struct kvm_vcpu *vcpu, union kvm_mmu_page_role role; role = kvm_mmu_child_role(sptep, direct, access); - return kvm_mmu_get_page(vcpu, gfn, role); + return kvm_mmu_get_shadow_page(vcpu, gfn, role); } static void shadow_walk_init_using_root(struct kvm_shadow_walk_iterator *iterator, @@ -2448,7 +2449,7 @@ static void kvm_mmu_commit_zap_page(struct kvm *kvm, list_for_each_entry_safe(sp, nsp, invalid_list, link) { WARN_ON(!sp->role.invalid || sp->root_count); - kvm_mmu_free_page(sp); + kvm_mmu_free_shadow_page(sp); } } @@ -3432,7 +3433,7 @@ static hpa_t mmu_alloc_root(struct kvm_vcpu *vcpu, gfn_t gfn, int quadrant, WARN_ON_ONCE(quadrant && !role.has_4_byte_gpte); WARN_ON_ONCE(role.direct && role.has_4_byte_gpte); - sp = kvm_mmu_get_page(vcpu, gfn, role); + sp = kvm_mmu_get_shadow_page(vcpu, gfn, role); ++sp->root_count; return __pa(sp->spt); -- 2.36.0.550.gb090851708-goog
WARNING: multiple messages have this Message-ID (diff)
From: David Matlack <dmatlack@google.com> To: Paolo Bonzini <pbonzini@redhat.com> Cc: Albert Ou <aou@eecs.berkeley.edu>, "open list:KERNEL VIRTUAL MACHINE FOR MIPS \(KVM/mips\)" <kvm@vger.kernel.org>, Marc Zyngier <maz@kernel.org>, Huacai Chen <chenhuacai@kernel.org>, Lai Jiangshan <jiangshanlai@gmail.com>, "open list:KERNEL VIRTUAL MACHINE FOR MIPS \(KVM/mips\)" <linux-mips@vger.kernel.org>, David Matlack <dmatlack@google.com>, Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>, Palmer Dabbelt <palmer@dabbelt.com>, "open list:KERNEL VIRTUAL MACHINE FOR RISC-V \(KVM/riscv\)" <kvm-riscv@lists.infradead.org>, Paul Walmsley <paul.walmsley@sifive.com>, Ben Gardon <bgardon@google.com>, maciej.szmigiero@oracle.com, "moderated list:KERNEL VIRTUAL MACHINE FOR ARM64 \(KVM/arm64\)" <kvmarm@lists.cs.columbia.edu>, Peter Feiner <pfeiner@google.com> Subject: [PATCH v6 08/22] KVM: x86/mmu: Rename shadow MMU functions that deal with shadow pages Date: Mon, 16 May 2022 23:21:24 +0000 [thread overview] Message-ID: <20220516232138.1783324-9-dmatlack@google.com> (raw) In-Reply-To: <20220516232138.1783324-1-dmatlack@google.com> Rename 2 functions: kvm_mmu_get_page() -> kvm_mmu_get_shadow_page() kvm_mmu_free_page() -> kvm_mmu_free_shadow_page() This change makes it clear that these functions deal with shadow pages rather than struct pages. It also aligns these functions with the naming scheme for kvm_mmu_find_shadow_page() and kvm_mmu_alloc_shadow_page(). Prefer "shadow_page" over the shorter "sp" since these are core functions and the line lengths aren't terrible. No functional change intended. Reviewed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: David Matlack <dmatlack@google.com> --- arch/x86/kvm/mmu/mmu.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 0b14097f8771..d342fcc5813d 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -1652,7 +1652,7 @@ static inline void kvm_mod_used_mmu_pages(struct kvm *kvm, long nr) percpu_counter_add(&kvm_total_used_mmu_pages, nr); } -static void kvm_mmu_free_page(struct kvm_mmu_page *sp) +static void kvm_mmu_free_shadow_page(struct kvm_mmu_page *sp) { MMU_WARN_ON(!is_empty_shadow_page(sp->spt)); hlist_del(&sp->hash_link); @@ -2107,8 +2107,9 @@ static struct kvm_mmu_page *kvm_mmu_alloc_shadow_page(struct kvm_vcpu *vcpu, return sp; } -static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu, gfn_t gfn, - union kvm_mmu_page_role role) +static struct kvm_mmu_page *kvm_mmu_get_shadow_page(struct kvm_vcpu *vcpu, + gfn_t gfn, + union kvm_mmu_page_role role) { struct hlist_head *sp_list; struct kvm_mmu_page *sp; @@ -2172,7 +2173,7 @@ static struct kvm_mmu_page *kvm_mmu_get_child_sp(struct kvm_vcpu *vcpu, union kvm_mmu_page_role role; role = kvm_mmu_child_role(sptep, direct, access); - return kvm_mmu_get_page(vcpu, gfn, role); + return kvm_mmu_get_shadow_page(vcpu, gfn, role); } static void shadow_walk_init_using_root(struct kvm_shadow_walk_iterator *iterator, @@ -2448,7 +2449,7 @@ static void kvm_mmu_commit_zap_page(struct kvm *kvm, list_for_each_entry_safe(sp, nsp, invalid_list, link) { WARN_ON(!sp->role.invalid || sp->root_count); - kvm_mmu_free_page(sp); + kvm_mmu_free_shadow_page(sp); } } @@ -3432,7 +3433,7 @@ static hpa_t mmu_alloc_root(struct kvm_vcpu *vcpu, gfn_t gfn, int quadrant, WARN_ON_ONCE(quadrant && !role.has_4_byte_gpte); WARN_ON_ONCE(role.direct && role.has_4_byte_gpte); - sp = kvm_mmu_get_page(vcpu, gfn, role); + sp = kvm_mmu_get_shadow_page(vcpu, gfn, role); ++sp->root_count; return __pa(sp->spt); -- 2.36.0.550.gb090851708-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
next prev parent reply other threads:[~2022-05-16 23:22 UTC|newest] Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-05-16 23:21 [PATCH v6 00/22] KVM: Extend Eager Page Splitting to the shadow MMU David Matlack 2022-05-16 23:21 ` David Matlack 2022-05-16 23:21 ` [PATCH v6 01/22] KVM: x86/mmu: Optimize MMU page cache lookup for all direct SPs David Matlack 2022-05-16 23:21 ` David Matlack 2022-05-16 23:21 ` [PATCH v6 02/22] KVM: x86/mmu: Use a bool for direct David Matlack 2022-05-16 23:21 ` David Matlack 2022-05-16 23:21 ` [PATCH v6 03/22] KVM: x86/mmu: Stop passing @direct to mmu_alloc_root() David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-16 18:47 ` Sean Christopherson 2022-06-16 18:47 ` Sean Christopherson 2022-06-22 14:06 ` Paolo Bonzini 2022-06-22 14:06 ` Paolo Bonzini 2022-06-22 14:19 ` Sean Christopherson 2022-06-22 14:19 ` Sean Christopherson 2022-05-16 23:21 ` [PATCH v6 04/22] KVM: x86/mmu: Derive shadow MMU page role from parent David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-17 1:19 ` Sean Christopherson 2022-06-17 1:19 ` Sean Christopherson 2022-06-17 15:12 ` Sean Christopherson 2022-06-17 15:12 ` Sean Christopherson 2022-05-16 23:21 ` [PATCH v6 05/22] KVM: x86/mmu: Always pass 0 for @quadrant when gptes are 8 bytes David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-17 15:20 ` Sean Christopherson 2022-06-17 15:20 ` Sean Christopherson 2022-05-16 23:21 ` [PATCH v6 06/22] KVM: x86/mmu: Decompose kvm_mmu_get_page() into separate functions David Matlack 2022-05-16 23:21 ` David Matlack 2022-05-16 23:21 ` [PATCH v6 07/22] KVM: x86/mmu: Consolidate shadow page allocation and initialization David Matlack 2022-05-16 23:21 ` David Matlack 2022-05-16 23:21 ` David Matlack [this message] 2022-05-16 23:21 ` [PATCH v6 08/22] KVM: x86/mmu: Rename shadow MMU functions that deal with shadow pages David Matlack 2022-05-16 23:21 ` [PATCH v6 09/22] KVM: x86/mmu: Move guest PT write-protection to account_shadowed() David Matlack 2022-05-16 23:21 ` David Matlack 2022-05-16 23:21 ` [PATCH v6 10/22] KVM: x86/mmu: Pass memory caches to allocate SPs separately David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-17 15:01 ` Sean Christopherson 2022-06-17 15:01 ` Sean Christopherson 2022-06-21 17:06 ` David Matlack 2022-06-21 17:06 ` David Matlack 2022-06-21 17:27 ` Sean Christopherson 2022-06-21 17:27 ` Sean Christopherson 2022-05-16 23:21 ` [PATCH v6 11/22] KVM: x86/mmu: Replace vcpu with kvm in kvm_mmu_alloc_shadow_page() David Matlack 2022-05-16 23:21 ` David Matlack 2022-05-16 23:21 ` [PATCH v6 12/22] KVM: x86/mmu: Pass kvm pointer separately from vcpu to kvm_mmu_find_shadow_page() David Matlack 2022-05-16 23:21 ` David Matlack 2022-05-16 23:21 ` [PATCH v6 13/22] KVM: x86/mmu: Allow NULL @vcpu in kvm_mmu_find_shadow_page() David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-17 15:28 ` Sean Christopherson 2022-06-17 15:28 ` Sean Christopherson 2022-06-22 14:26 ` Paolo Bonzini 2022-06-22 14:26 ` Paolo Bonzini 2022-05-16 23:21 ` [PATCH v6 14/22] KVM: x86/mmu: Pass const memslot to rmap_add() David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-17 15:30 ` Sean Christopherson 2022-06-17 15:30 ` Sean Christopherson 2022-05-16 23:21 ` [PATCH v6 15/22] KVM: x86/mmu: Decouple rmap_add() and link_shadow_page() from kvm_vcpu David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-17 16:39 ` Sean Christopherson 2022-06-17 16:39 ` Sean Christopherson 2022-05-16 23:21 ` [PATCH v6 16/22] KVM: x86/mmu: Update page stats in __rmap_add() David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-17 16:40 ` Sean Christopherson 2022-06-17 16:40 ` Sean Christopherson 2022-05-16 23:21 ` [PATCH v6 17/22] KVM: x86/mmu: Cache the access bits of shadowed translations David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-17 16:53 ` Sean Christopherson 2022-06-17 16:53 ` Sean Christopherson 2022-05-16 23:21 ` [PATCH v6 18/22] KVM: x86/mmu: Extend make_huge_page_split_spte() for the shadow MMU David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-17 16:56 ` Sean Christopherson 2022-06-17 16:56 ` Sean Christopherson 2022-05-16 23:21 ` [PATCH v6 19/22] KVM: x86/mmu: Zap collapsible SPTEs in shadow MMU at all possible levels David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-17 17:01 ` Sean Christopherson 2022-06-17 17:01 ` Sean Christopherson 2022-06-21 17:24 ` David Matlack 2022-06-21 17:24 ` David Matlack 2022-06-21 17:59 ` Sean Christopherson 2022-06-21 17:59 ` Sean Christopherson 2022-05-16 23:21 ` [PATCH v6 20/22] KVM: x86/mmu: Refactor drop_large_spte() David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-17 17:11 ` Sean Christopherson 2022-06-17 17:11 ` Sean Christopherson 2022-06-22 16:13 ` Paolo Bonzini 2022-06-22 16:13 ` Paolo Bonzini 2022-06-22 16:50 ` Paolo Bonzini 2022-06-22 16:50 ` Paolo Bonzini 2022-05-16 23:21 ` [PATCH v6 21/22] KVM: Allow for different capacities in kvm_mmu_memory_cache structs David Matlack 2022-05-16 23:21 ` David Matlack 2022-05-19 15:33 ` Anup Patel 2022-05-19 15:33 ` Anup Patel 2022-05-20 23:21 ` Mingwei Zhang 2022-05-23 17:37 ` Sean Christopherson 2022-05-23 17:37 ` Sean Christopherson 2022-05-23 17:44 ` David Matlack 2022-05-23 17:44 ` David Matlack 2022-05-23 18:13 ` Mingwei Zhang 2022-05-23 18:13 ` Mingwei Zhang 2022-05-23 18:22 ` David Matlack 2022-05-23 18:22 ` David Matlack 2022-05-23 23:53 ` David Matlack 2022-05-23 23:53 ` David Matlack 2022-06-17 17:41 ` Sean Christopherson 2022-06-17 17:41 ` Sean Christopherson 2022-06-17 18:34 ` Sean Christopherson 2022-06-17 18:34 ` Sean Christopherson 2022-05-16 23:21 ` [PATCH v6 22/22] KVM: x86/mmu: Extend Eager Page Splitting to nested MMUs David Matlack 2022-05-16 23:21 ` David Matlack 2022-06-01 21:50 ` Ricardo Koller 2022-06-01 21:50 ` Ricardo Koller 2022-06-17 19:08 ` Sean Christopherson 2022-06-17 19:08 ` Sean Christopherson
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