From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8A4E713B7AE; Sat, 23 May 2026 00:18:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779495483; cv=none; b=YuwZVvbGWZJMsiYe1knYrlXuABzoMiNIjRGtwwIHLQmbkGGjeHGljpY0ks4BrEPZRJP+d2VqhO32rmf9fqsqGBck0i84LkLXiPKXzJdIjeWAs7dI7n1arbOuGYgytRq+6scJT5QtrHqWQGgL5J/cLgr+OkX58brMSvG/wLjYqbo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779495483; c=relaxed/simple; bh=KqSsdLiF1vilvxfcn4kyISvCPXTv43jjluQ/o6Cospw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=rd2a1ibYosrb8Dc3WBu7eGUmLiZ6mqpOuOfvkmysKHcmGS1BWJrRrxxrJttisa6wW4C2vFLunsmXFa05fL9T22M03vVthqWzDdHZ7Nd2mHxi3Zu0vk9D/auFUPs1bdwTzU8kxCeMkZ8eVUiuFribNg4Pv8YQH0hl4U0OHMQtxK8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GDPsDSkf; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GDPsDSkf" Received: by smtp.kernel.org (Postfix) with ESMTPS id 45250C2BCC6; Sat, 23 May 2026 00:18:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779495483; bh=KqSsdLiF1vilvxfcn4kyISvCPXTv43jjluQ/o6Cospw=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=GDPsDSkf9GbiHCWV/Ln+xljCDjYDC7OoSH1aWP7kUD7CGok5lG3Tu2wRGh338toei AjSwXi4Zqi61dlVNLY5uuJ7T4FM3lKJl+ld1XZe8KfyIMx2K9oyhOsMoMpqp/rpvbA 6E7a2aGAkhOAseXrWy/4f+jq6gvJlemgYfBlM7QC8sonGM06tjW+MgMocDjkozJ/Ml XqChuCz745fhVJE93eG6cYPX1nG+NsrZfej1nnsKj4ya0o7hnGkILHNJA9sxy2i7N2 8xanyuER6ZWuOX/zkSbNBtpchyxVq1kzdxS5E3LCatKxQFBbpyBjA7lmFZNqdNm2qy PVz34YZD35kjA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 35363CD5BB8; Sat, 23 May 2026 00:18:03 +0000 (UTC) From: Ackerley Tng via B4 Relay Date: Fri, 22 May 2026 17:17:44 -0700 Subject: [PATCH v7 02/42] KVM: Rename KVM_GENERIC_MEMORY_ATTRIBUTES to KVM_VM_MEMORY_ATTRIBUTES Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260522-gmem-inplace-conversion-v7-2-2f0fae496530@google.com> References: <20260522-gmem-inplace-conversion-v7-0-2f0fae496530@google.com> In-Reply-To: <20260522-gmem-inplace-conversion-v7-0-2f0fae496530@google.com> To: aik@amd.com, andrew.jones@linux.dev, binbin.wu@linux.intel.com, brauner@kernel.org, chao.p.peng@linux.intel.com, david@kernel.org, ira.weiny@intel.com, jmattson@google.com, jthoughton@google.com, michael.roth@amd.com, oupton@kernel.org, pankaj.gupta@amd.com, qperret@google.com, rick.p.edgecombe@intel.com, rientjes@google.com, shivankg@amd.com, steven.price@arm.com, tabba@google.com, willy@infradead.org, wyihan@google.com, yan.y.zhao@intel.com, forkloop@google.com, pratyush@kernel.org, suzuki.poulose@arm.com, aneesh.kumar@kernel.org, liam@infradead.org, Paolo Bonzini , Sean Christopherson , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Jonathan Corbet , Shuah Khan , Shuah Khan , Vishal Annapurve , Andrew Morton , Chris Li , Kairui Song , Kemeng Shi , Nhat Pham , Baoquan He , Barry Song , Axel Rasmussen , Yuanchu Xie , Wei Xu , Youngjun Park , Qi Zheng , Shakeel Butt , Kiryl Shutsemau , Jason Gunthorpe , Vlastimil Babka Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, linux-coco@lists.linux.dev, Ackerley Tng X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1779495480; l=8687; i=ackerleytng@google.com; s=20260225; h=from:subject:message-id; bh=98OWW71gsIoF1YXmhWgMLeiP4e85e60xSdk51eRg1uQ=; b=0tnPwrxTsyOLN9Qf0Tn9ngKq31l1vbdMrLthrTdYXe+p6jPfY6EKfL8cDRXWc90yfNw3Rn3uN FwuH3dQJ14zDRXj+IiVgZFb2yyjDtK0Nted2klr48/x1M/wwJdO3tat X-Developer-Key: i=ackerleytng@google.com; a=ed25519; pk=sAZDYXdm6Iz8FHitpHeFlCMXwabodTm7p8/3/8xUxuU= X-Endpoint-Received: by B4 Relay for ackerleytng@google.com/20260225 with auth_id=649 X-Original-From: Ackerley Tng Reply-To: ackerleytng@google.com From: Sean Christopherson Rename the per-VM memory attributes Kconfig to make it explicitly about per-VM attributes in anticipation of adding memory attributes support to guest_memfd, at which point it will be possible (and desirable) to have memory attributes without the per-VM support, even in x86. No functional change intended. Signed-off-by: Sean Christopherson Reviewed-by: Fuad Tabba Signed-off-by: Ackerley Tng --- arch/x86/include/asm/kvm_host.h | 2 +- arch/x86/kvm/Kconfig | 6 +++--- arch/x86/kvm/mmu/mmu.c | 2 +- arch/x86/kvm/x86.c | 2 +- include/linux/kvm_host.h | 8 ++++---- include/trace/events/kvm.h | 4 ++-- virt/kvm/Kconfig | 2 +- virt/kvm/kvm_main.c | 14 +++++++------- 8 files changed, 20 insertions(+), 20 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 8a53ca6195701..8bb7c25240e33 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -2393,7 +2393,7 @@ void kvm_configure_mmu(bool enable_tdp, int tdp_forced_root_level, int tdp_max_root_level, int tdp_huge_page_level); -#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES +#ifdef CONFIG_KVM_VM_MEMORY_ATTRIBUTES #define kvm_arch_has_private_mem(kvm) ((kvm)->arch.has_private_mem) #endif diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index 801bf9e520db3..26f6afd51bbdc 100644 --- a/arch/x86/kvm/Kconfig +++ b/arch/x86/kvm/Kconfig @@ -84,7 +84,7 @@ config KVM_SW_PROTECTED_VM bool "Enable support for KVM software-protected VMs" depends on EXPERT depends on KVM_X86 && X86_64 - select KVM_GENERIC_MEMORY_ATTRIBUTES + select KVM_VM_MEMORY_ATTRIBUTES help Enable support for KVM software-protected VMs. Currently, software- protected VMs are purely a development and testing vehicle for @@ -135,7 +135,7 @@ config KVM_INTEL_TDX bool "Intel Trust Domain Extensions (TDX) support" default y depends on INTEL_TDX_HOST - select KVM_GENERIC_MEMORY_ATTRIBUTES + select KVM_VM_MEMORY_ATTRIBUTES select HAVE_KVM_ARCH_GMEM_POPULATE help Provides support for launching Intel Trust Domain Extensions (TDX) @@ -159,7 +159,7 @@ config KVM_AMD_SEV depends on KVM_AMD && X86_64 depends on CRYPTO_DEV_SP_PSP && !(KVM_AMD=y && CRYPTO_DEV_CCP_DD=m) select ARCH_HAS_CC_PLATFORM - select KVM_GENERIC_MEMORY_ATTRIBUTES + select KVM_VM_MEMORY_ATTRIBUTES select HAVE_KVM_ARCH_GMEM_PREPARE select HAVE_KVM_ARCH_GMEM_INVALIDATE select HAVE_KVM_ARCH_GMEM_POPULATE diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index f8aa7eda661ee..b53a0c4b4dfca 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -7971,7 +7971,7 @@ void kvm_mmu_pre_destroy_vm(struct kvm *kvm) vhost_task_stop(kvm->arch.nx_huge_page_recovery_thread); } -#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES +#ifdef CONFIG_KVM_VM_MEMORY_ATTRIBUTES static bool hugepage_test_mixed(struct kvm_memory_slot *slot, gfn_t gfn, int level) { diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 48f259015ce44..cb4f7432a073d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -13611,7 +13611,7 @@ static int kvm_alloc_memslot_metadata(struct kvm *kvm, } } -#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES +#ifdef CONFIG_KVM_VM_MEMORY_ATTRIBUTES kvm_mmu_init_memslot_memory_attributes(kvm, slot); #endif diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 2c5ad9a6d5ce8..091f201251159 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -722,7 +722,7 @@ static inline int kvm_arch_vcpu_memslots_id(struct kvm_vcpu *vcpu) } #endif -#ifndef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES +#ifndef CONFIG_KVM_VM_MEMORY_ATTRIBUTES static inline bool kvm_arch_has_private_mem(struct kvm *kvm) { return false; @@ -871,7 +871,7 @@ struct kvm { #ifdef CONFIG_HAVE_KVM_PM_NOTIFIER struct notifier_block pm_notifier; #endif -#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES +#ifdef CONFIG_KVM_VM_MEMORY_ATTRIBUTES /* Protected by slots_lock (for writes) and RCU (for reads) */ struct xarray mem_attr_array; #endif @@ -2528,7 +2528,7 @@ static inline bool kvm_memslot_is_gmem_only(const struct kvm_memory_slot *slot) return slot->flags & KVM_MEMSLOT_GMEM_ONLY; } -#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES +#ifdef CONFIG_KVM_VM_MEMORY_ATTRIBUTES static inline unsigned long kvm_get_memory_attributes(struct kvm *kvm, gfn_t gfn) { return xa_to_value(xa_load(&kvm->mem_attr_array, gfn)); @@ -2550,7 +2550,7 @@ static inline bool kvm_mem_is_private(struct kvm *kvm, gfn_t gfn) { return false; } -#endif /* CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES */ +#endif /* CONFIG_KVM_VM_MEMORY_ATTRIBUTES */ #ifdef CONFIG_KVM_GUEST_MEMFD int kvm_gmem_get_pfn(struct kvm *kvm, struct kvm_memory_slot *slot, diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h index b282e3a867696..1ba72bd73ea2f 100644 --- a/include/trace/events/kvm.h +++ b/include/trace/events/kvm.h @@ -358,7 +358,7 @@ TRACE_EVENT(kvm_dirty_ring_exit, TP_printk("vcpu %d", __entry->vcpu_id) ); -#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES +#ifdef CONFIG_KVM_VM_MEMORY_ATTRIBUTES /* * @start: Starting address of guest memory range * @end: End address of guest memory range @@ -383,7 +383,7 @@ TRACE_EVENT(kvm_vm_set_mem_attributes, TP_printk("%#016llx -- %#016llx [0x%lx]", __entry->start, __entry->end, __entry->attr) ); -#endif /* CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES */ +#endif /* CONFIG_KVM_VM_MEMORY_ATTRIBUTES */ TRACE_EVENT(kvm_unmap_hva_range, TP_PROTO(unsigned long start, unsigned long end), diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig index 794976b88c6f9..5119cb37145fc 100644 --- a/virt/kvm/Kconfig +++ b/virt/kvm/Kconfig @@ -100,7 +100,7 @@ config KVM_ELIDE_TLB_FLUSH_IF_YOUNG config KVM_MMU_LOCKLESS_AGING bool -config KVM_GENERIC_MEMORY_ATTRIBUTES +config KVM_VM_MEMORY_ATTRIBUTES bool config KVM_GUEST_MEMFD diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 89489996fbc1e..306153abbafa5 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1115,7 +1115,7 @@ static struct kvm *kvm_create_vm(unsigned long type, const char *fdname) spin_lock_init(&kvm->mn_invalidate_lock); rcuwait_init(&kvm->mn_memslots_update_rcuwait); xa_init(&kvm->vcpu_array); -#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES +#ifdef CONFIG_KVM_VM_MEMORY_ATTRIBUTES xa_init(&kvm->mem_attr_array); #endif @@ -1300,7 +1300,7 @@ static void kvm_destroy_vm(struct kvm *kvm) cleanup_srcu_struct(&kvm->irq_srcu); srcu_barrier(&kvm->srcu); cleanup_srcu_struct(&kvm->srcu); -#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES +#ifdef CONFIG_KVM_VM_MEMORY_ATTRIBUTES xa_destroy(&kvm->mem_attr_array); #endif kvm_arch_free_vm(kvm); @@ -2418,7 +2418,7 @@ static int kvm_vm_ioctl_clear_dirty_log(struct kvm *kvm, } #endif /* CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT */ -#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES +#ifdef CONFIG_KVM_VM_MEMORY_ATTRIBUTES static u64 kvm_supported_mem_attributes(struct kvm *kvm) { if (!kvm || kvm_arch_has_private_mem(kvm)) @@ -2623,7 +2623,7 @@ static int kvm_vm_ioctl_set_mem_attributes(struct kvm *kvm, return kvm_vm_set_mem_attributes(kvm, start, end, attrs->attributes); } -#endif /* CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES */ +#endif /* CONFIG_KVM_VM_MEMORY_ATTRIBUTES */ struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn) { @@ -4921,7 +4921,7 @@ static int kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg) case KVM_CAP_SYSTEM_EVENT_DATA: case KVM_CAP_DEVICE_CTRL: return 1; -#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES +#ifdef CONFIG_KVM_VM_MEMORY_ATTRIBUTES case KVM_CAP_MEMORY_ATTRIBUTES: return kvm_supported_mem_attributes(kvm); #endif @@ -5325,7 +5325,7 @@ static long kvm_vm_ioctl(struct file *filp, break; } #endif /* CONFIG_HAVE_KVM_IRQ_ROUTING */ -#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES +#ifdef CONFIG_KVM_VM_MEMORY_ATTRIBUTES case KVM_SET_MEMORY_ATTRIBUTES: { struct kvm_memory_attributes attrs; @@ -5336,7 +5336,7 @@ static long kvm_vm_ioctl(struct file *filp, r = kvm_vm_ioctl_set_mem_attributes(kvm, &attrs); break; } -#endif /* CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES */ +#endif /* CONFIG_KVM_VM_MEMORY_ATTRIBUTES */ case KVM_CREATE_DEVICE: { struct kvm_create_device cd; -- 2.54.0.794.g4f17f83d09-goog