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From: James Houghton <jthoughton@google.com>
To: Andrew Morton <akpm@linux-foundation.org>,
	Paolo Bonzini <pbonzini@redhat.com>
Cc: Ankit Agrawal <ankita@nvidia.com>,
	Axel Rasmussen <axelrasmussen@google.com>,
	 Catalin Marinas <catalin.marinas@arm.com>,
	David Matlack <dmatlack@google.com>,
	 David Rientjes <rientjes@google.com>,
	James Houghton <jthoughton@google.com>,
	 James Morse <james.morse@arm.com>,
	Jonathan Corbet <corbet@lwn.net>, Marc Zyngier <maz@kernel.org>,
	 Oliver Upton <oliver.upton@linux.dev>,
	Raghavendra Rao Ananta <rananta@google.com>,
	 Ryan Roberts <ryan.roberts@arm.com>,
	Sean Christopherson <seanjc@google.com>,
	 Shaoqin Huang <shahuang@redhat.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	 Wei Xu <weixugc@google.com>, Will Deacon <will@kernel.org>,
	Yu Zhao <yuzhao@google.com>,  Zenghui Yu <yuzenghui@huawei.com>,
	kvmarm@lists.linux.dev, kvm@vger.kernel.org,
	 linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
	 linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH v5 6/9] KVM: x86: Move tdp_mmu_enabled and shadow_accessed_mask
Date: Tue, 11 Jun 2024 00:21:42 +0000	[thread overview]
Message-ID: <20240611002145.2078921-7-jthoughton@google.com> (raw)
In-Reply-To: <20240611002145.2078921-1-jthoughton@google.com>

From: Yu Zhao <yuzhao@google.com>

tdp_mmu_enabled and shadow_accessed_mask are needed to implement
kvm_arch_young_notifier_likely_fast().

Signed-off-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: James Houghton <jthoughton@google.com>
---
 arch/x86/include/asm/kvm_host.h | 6 ++++++
 arch/x86/kvm/mmu.h              | 6 ------
 arch/x86/kvm/mmu/spte.h         | 1 -
 3 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 011c8eb7c8d3..0dc1fa99cdbb 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1855,6 +1855,7 @@ struct kvm_arch_async_pf {
 
 extern u32 __read_mostly kvm_nr_uret_msrs;
 extern u64 __read_mostly host_efer;
+extern u64 __read_mostly shadow_accessed_mask;
 extern bool __read_mostly allow_smaller_maxphyaddr;
 extern bool __read_mostly enable_apicv;
 extern struct kvm_x86_ops kvm_x86_ops;
@@ -1960,6 +1961,11 @@ void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
 			     bool mask);
 
 extern bool tdp_enabled;
+#ifdef CONFIG_X86_64
+extern bool tdp_mmu_enabled;
+#else
+#define tdp_mmu_enabled false
+#endif
 
 u64 vcpu_tsc_khz(struct kvm_vcpu *vcpu);
 
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index 2e454316f2a2..267f72b065f5 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -271,12 +271,6 @@ static inline bool kvm_shadow_root_allocated(struct kvm *kvm)
 	return smp_load_acquire(&kvm->arch.shadow_root_allocated);
 }
 
-#ifdef CONFIG_X86_64
-extern bool tdp_mmu_enabled;
-#else
-#define tdp_mmu_enabled false
-#endif
-
 static inline bool kvm_memslots_have_rmaps(struct kvm *kvm)
 {
 	return !tdp_mmu_enabled || kvm_shadow_root_allocated(kvm);
diff --git a/arch/x86/kvm/mmu/spte.h b/arch/x86/kvm/mmu/spte.h
index 52fa004a1fbc..9ca6d80fb86c 100644
--- a/arch/x86/kvm/mmu/spte.h
+++ b/arch/x86/kvm/mmu/spte.h
@@ -172,7 +172,6 @@ extern u64 __read_mostly shadow_mmu_writable_mask;
 extern u64 __read_mostly shadow_nx_mask;
 extern u64 __read_mostly shadow_x_mask; /* mutual exclusive with nx_mask */
 extern u64 __read_mostly shadow_user_mask;
-extern u64 __read_mostly shadow_accessed_mask;
 extern u64 __read_mostly shadow_dirty_mask;
 extern u64 __read_mostly shadow_mmio_value;
 extern u64 __read_mostly shadow_mmio_mask;
-- 
2.45.2.505.gda0bf45e8d-goog



  parent reply	other threads:[~2024-06-11  0:22 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-11  0:21 [PATCH v5 0/9] mm: multi-gen LRU: Walk secondary MMU page tables while aging James Houghton
2024-06-11  0:21 ` [PATCH v5 1/9] KVM: Add lockless memslot walk to KVM James Houghton
2024-06-11  0:21 ` [PATCH v5 2/9] KVM: x86: Relax locking for kvm_test_age_gfn and kvm_age_gfn James Houghton
2024-06-11  0:21 ` [PATCH v5 3/9] KVM: arm64: " James Houghton
2024-06-11  5:57   ` Oliver Upton
2024-06-11 16:52     ` James Houghton
2024-06-11  0:21 ` [PATCH v5 4/9] mm: Add test_clear_young_fast_only MMU notifier James Houghton
2024-06-11  5:33   ` Yu Zhao
2024-06-11 16:49     ` James Houghton
2024-06-11 18:54       ` Oliver Upton
2024-06-11 19:49         ` Sean Christopherson
2024-06-13  6:52           ` Oliver Upton
2024-06-14  0:48             ` James Houghton
2024-06-11 19:42       ` Sean Christopherson
2024-06-11 23:04         ` James Houghton
2024-06-12  0:34           ` Sean Christopherson
2024-06-14  0:45             ` James Houghton
2024-06-14 16:12               ` Sean Christopherson
2024-06-14 18:23                 ` James Houghton
2024-06-14 23:17                   ` Sean Christopherson
2024-06-17 16:50                     ` James Houghton
2024-06-17 18:37                       ` Sean Christopherson
2024-06-28 23:38                         ` James Houghton
2024-07-08 16:50                           ` James Houghton
2024-07-09 17:49                             ` Sean Christopherson
2024-07-10 23:10                               ` James Houghton
2024-07-12 15:06                                 ` Sean Christopherson
2024-07-15 23:15                                   ` James Houghton
2024-06-11 20:39       ` Yu Zhao
2024-06-11  0:21 ` [PATCH v5 5/9] KVM: Add kvm_fast_age_gfn and kvm_fast_test_age_gfn James Houghton
2024-06-11  0:21 ` James Houghton [this message]
2024-06-11  0:21 ` [PATCH v5 7/9] KVM: x86: Implement kvm_fast_test_age_gfn and kvm_fast_age_gfn James Houghton
2024-06-11  0:21 ` [PATCH v5 8/9] mm: multi-gen LRU: Have secondary MMUs participate in aging James Houghton
2024-06-12 16:02   ` Sean Christopherson
2024-06-12 16:59     ` Yu Zhao
2024-06-12 17:23       ` Sean Christopherson
2024-06-13  6:49         ` Oliver Upton
2024-07-05 18:35   ` Yu Zhao
2024-07-08 17:30     ` James Houghton
2024-07-08 23:41       ` Yu Zhao
2024-07-22 20:45         ` James Houghton
2024-07-22 21:23           ` Yu Zhao
2024-06-11  0:21 ` [PATCH v5 9/9] KVM: selftests: Add multi-gen LRU aging to access_tracking_perf_test James Houghton

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