[RFC,03/37] KVM: MMU: Move tdp_ptep_t into common code

Message ID	20221208193857.4090582-4-dmatlack@google.com
State	RFC
Headers	show Return-Path: <kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org> Date: Thu, 8 Dec 2022 11:38:23 -0800 In-Reply-To: <20221208193857.4090582-1-dmatlack@google.com> Mime-Version: 1.0 References: <20221208193857.4090582-1-dmatlack@google.com> Message-ID: <20221208193857.4090582-4-dmatlack@google.com> Subject: [RFC PATCH 03/37] KVM: MMU: Move tdp_ptep_t into common code From: David Matlack <dmatlack@google.com> To: Paolo Bonzini <pbonzini@redhat.com> Cc: Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>, Alexandru Elisei <alexandru.elisei@arm.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Oliver Upton <oliver.upton@linux.dev>, Huacai Chen <chenhuacai@kernel.org>, Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>, Anup Patel <anup@brainfault.org>, Atish Patra <atishp@atishpatra.org>, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Sean Christopherson <seanjc@google.com>, Andrew Morton <akpm@linux-foundation.org>, David Matlack <dmatlack@google.com>, Anshuman Khandual <anshuman.khandual@arm.com>, Nadav Amit <namit@vmware.com>, "Matthew Wilcox (Oracle)" <willy@infradead.org>, Vlastimil Babka <vbabka@suse.cz>, "Liam R. Howlett" <Liam.Howlett@Oracle.com>, Suren Baghdasaryan <surenb@google.com>, Peter Xu <peterx@redhat.com>, xu xin <cgel.zte@gmail.com>, Arnd Bergmann <arnd@arndb.de>, Yu Zhao <yuzhao@google.com>, Colin Cross <ccross@google.com>, Hugh Dickins <hughd@google.com>, Ben Gardon <bgardon@google.com>, Mingwei Zhang <mizhang@google.com>, Krish Sadhukhan <krish.sadhukhan@oracle.com>, Ricardo Koller <ricarkol@google.com>, Jing Zhang <jingzhangos@google.com>, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvmarm@lists.cs.columbia.edu, linux-mips@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org preview: Move the definition of tdp_ptep_t into kvm/mmu_types.h so it can be used from common code in future commits. No functional changed intended. Signed-off-by: David Matlack <dmatlack@google.com> --- arch/x86/kvm/mmu/mmu_internal.h \| 2 -- include/kvm/mmu_types.h \| 2 ++ 2 files changed, 2 insertions(+), 2 deletions(-) Content analysis details: (-7.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:54a listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -7.5 USER_IN_DEF_DKIM_WL From: address is in the default DKIM white-list -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 -0.0 DKIMWL_WL_MED DKIMwl.org - Medium 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: Refactor the KVM/x86 TDP MMU into common code \| expand [RFC,00/37] KVM: Refactor the KVM/x86 TDP MMU into common code [RFC,01/37] KVM: x86/mmu: Store the address space ID directly in kvm_mmu_page_role [RFC,02/37] KVM: MMU: Move struct kvm_mmu_page_role into common code [RFC,03/37] KVM: MMU: Move tdp_ptep_t into common code [RFC,04/37] KVM: x86/mmu: Invert sp->tdp_mmu_page to sp->shadow_mmu_page [RFC,05/37] KVM: x86/mmu: Unify TDP MMU and Shadow MMU root refcounts [RFC,06/37] KVM: MMU: Move struct kvm_mmu_page to common code [RFC,07/37] mm: Introduce architecture-neutral PG_LEVEL macros [RFC,08/37] KVM: selftests: Stop assuming stats are contiguous in kvm_binary_stats_test [RFC,09/37] KVM: Move page size stats into common code [RFC,10/37] KVM: MMU: Move struct kvm_page_fault to common code [RFC,11/37] KVM: MMU: Move RET_PF_* into common code [RFC,12/37] KVM: x86/mmu: Use PG_LEVEL_{PTE,PMD,PUD} in the TDP MMU [RFC,13/37] KVM: MMU: Move sptep_to_sp() to common code [RFC,14/37] KVM: MMU: Introduce common macros for TDP page tables [RFC,15/37] KVM: x86/mmu: Add a common API for inspecting/modifying TDP PTEs [RFC,16/37] KVM: x86/mmu: Abstract away TDP MMU root lookup [RFC,17/37] KVM: Move struct kvm_gfn_range to kvm_types.h [RFC,18/37] KVM: x86/mmu: Add common API for creating TDP PTEs [RFC,19/37] KVM: x86/mmu: Add arch hooks for NX Huge Pages [RFC,20/37] KVM: x86/mmu: Abstract away computing the max mapping level [RFC,21/37] KVM: Introduce CONFIG_HAVE_TDP_MMU [RFC,22/37] KVM: x86: Select HAVE_TDP_MMU if X86_64 [RFC,23/37] KVM: MMU: Move VM-level TDP MMU state to struct kvm [RFC,24/37] KVM: x86/mmu: Move kvm_mmu_hugepage_adjust() up to fault handler [RFC,25/37] KVM: x86/mmu: Pass root role to kvm_tdp_mmu_get_vcpu_root_hpa() [RFC,26/37] KVM: Move page table cache to struct kvm_vcpu [RFC,27/37] KVM: MMU: Move mmu_page_header_cache to common code [RFC,28/37] KVM: MMU: Stub out tracepoints on non-x86 architectures [RFC,29/37] KVM: x86/mmu: Collapse kvm_flush_remote_tlbs_with_{range,address}() together [RFC,30/37] KVM: x86/mmu: Rename kvm_flush_remote_tlbs_with_address() [RFC,31/37] KVM: x86/MMU: Use gfn_t in kvm_flush_remote_tlbs_range() [RFC,32/37] KVM: Allow range-based TLB invalidation from common code [RFC,33/37] KVM: Move kvm_arch_flush_remote_tlbs_memslot() to common code [RFC,34/37] KVM: MMU: Move the TDP iterator to common code [RFC,35/37] KVM: x86/mmu: Move tdp_mmu_max_gfn_exclusive() to tdp_pgtable.c [RFC,36/37] KVM: x86/mmu: Move is_tdp_mmu_page() to mmu_internal.h [RFC,37/37] KVM: MMU: Move the TDP MMU to common code

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20221208193857.4090582-4-dmatlack@google.com

State

RFC

Headers

Date: Thu,  8 Dec 2022 11:38:23 -0800
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Message-ID: <20221208193857.4090582-4-dmatlack@google.com>
Subject: [RFC PATCH 03/37] KVM: MMU: Move tdp_ptep_t into common code
From: David Matlack <dmatlack@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
 Suzuki K Poulose <suzuki.poulose@arm.com>,
	Oliver Upton <oliver.upton@linux.dev>, Huacai Chen <chenhuacai@kernel.org>,
	Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>,
 Anup Patel <anup@brainfault.org>,
	Atish Patra <atishp@atishpatra.org>,
 Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>,
	Sean Christopherson <seanjc@google.com>,
 Andrew Morton <akpm@linux-foundation.org>,
	David Matlack <dmatlack@google.com>,
 Anshuman Khandual <anshuman.khandual@arm.com>,
	Nadav Amit <namit@vmware.com>,
 "Matthew Wilcox (Oracle)" <willy@infradead.org>,
 Vlastimil Babka <vbabka@suse.cz>,
	"Liam R. Howlett" <Liam.Howlett@Oracle.com>,
 Suren Baghdasaryan <surenb@google.com>,
	Peter Xu <peterx@redhat.com>, xu xin <cgel.zte@gmail.com>,
 Arnd Bergmann <arnd@arndb.de>,
	Yu Zhao <yuzhao@google.com>, Colin Cross <ccross@google.com>,
 Hugh Dickins <hughd@google.com>,
	Ben Gardon <bgardon@google.com>, Mingwei Zhang <mizhang@google.com>,
	Krish Sadhukhan <krish.sadhukhan@oracle.com>,
 Ricardo Koller <ricarkol@google.com>,
	Jing Zhang <jingzhangos@google.com>, linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.linux.dev, kvmarm@lists.cs.columbia.edu,
	linux-mips@vger.kernel.org, kvm@vger.kernel.org,
	kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org
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Series

KVM: Refactor the KVM/x86 TDP MMU into common code | expand

Commit Message

David Matlack Dec. 8, 2022, 7:38 p.m. UTC

Move the definition of tdp_ptep_t into kvm/mmu_types.h so it can be used
from common code in future commits.

No functional changed intended.

Signed-off-by: David Matlack <dmatlack@google.com>
---
 arch/x86/kvm/mmu/mmu_internal.h | 2 --
 include/kvm/mmu_types.h         | 2 ++
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/mmu/mmu_internal.h b/arch/x86/kvm/mmu/mmu_internal.h
index c19a80fdeb8d..e32379c5b1ad 100644
--- a/arch/x86/kvm/mmu/mmu_internal.h
+++ b/arch/x86/kvm/mmu/mmu_internal.h
@@ -44,8 +44,6 @@  extern bool dbg;
 #define INVALID_PAE_ROOT	0
 #define IS_VALID_PAE_ROOT(x)	(!!(x))
 
-typedef u64 __rcu *tdp_ptep_t;
-
 struct kvm_mmu_page {
 	/*
 	 * Note, "link" through "spt" fit in a single 64 byte cache line on
diff --git a/include/kvm/mmu_types.h b/include/kvm/mmu_types.h
index 3f35a924e031..14099956fdac 100644
--- a/include/kvm/mmu_types.h
+++ b/include/kvm/mmu_types.h
@@ -34,4 +34,6 @@  union kvm_mmu_page_role {
 
 static_assert(sizeof(union kvm_mmu_page_role) == sizeof_field(union kvm_mmu_page_role, word));
 
+typedef u64 __rcu *tdp_ptep_t;
+
 #endif /* !__KVM_MMU_TYPES_H */

[RFC,03/37] KVM: MMU: Move tdp_ptep_t into common code

Commit Message

Patch