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AJvYcCUQtXJSTq4XKSYP05Fplz0ExmvC3HI/ZnLui/iaSYrNaw0+ABq0uleYjKxr55kRdiZjF++0hHVpRA==@kvack.org X-Gm-Message-State: AOJu0Yx8Vznu7nFndIVgOxaiv0Im9uqJCSWlodc90fr/2LxvO++97d/G SIFjDtBZd9OPDHGLK6MYM6UXSKXSsFLsTs0idDwgoW4+GCyM7Y9P3LPTznxoiFNwW18Qe+7rIv8 rvg== X-Google-Smtp-Source: AGHT+IEzG+1uKM9AO05dF2Ch0TQrrd9Vs97wNui/rXRXxB3s9D/bdjxKFTMJjpP+kA7nJqBXvADB7nrGMw== X-Received: from wmpz17.prod.google.com ([2002:a05:600c:a11:b0:453:f28:e99f]) (user=tabba job=prod-delivery.src-stubby-dispatcher) by 2002:a05:600c:1d29:b0:453:5fde:fb5b with SMTP id 5b1f17b1804b1-454d535bbc6mr17668815e9.19.1752058793100; Wed, 09 Jul 2025 03:59:53 -0700 (PDT) Date: Wed, 9 Jul 2025 11:59:28 +0100 In-Reply-To: <20250709105946.4009897-1-tabba@google.com> Mime-Version: 1.0 References: <20250709105946.4009897-1-tabba@google.com> X-Mailer: git-send-email 2.50.0.727.gbf7dc18ff4-goog Message-ID: <20250709105946.4009897-3-tabba@google.com> Subject: [PATCH v13 02/20] KVM: Rename CONFIG_KVM_GENERIC_PRIVATE_MEM to CONFIG_KVM_GENERIC_GMEM_POPULATE From: Fuad Tabba To: kvm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-mm@kvack.org, kvmarm@lists.linux.dev Cc: pbonzini@redhat.com, chenhuacai@kernel.org, mpe@ellerman.id.au, anup@brainfault.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, seanjc@google.com, viro@zeniv.linux.org.uk, brauner@kernel.org, willy@infradead.org, akpm@linux-foundation.org, xiaoyao.li@intel.com, yilun.xu@intel.com, chao.p.peng@linux.intel.com, jarkko@kernel.org, amoorthy@google.com, dmatlack@google.com, isaku.yamahata@intel.com, mic@digikod.net, vbabka@suse.cz, vannapurve@google.com, ackerleytng@google.com, mail@maciej.szmigiero.name, david@redhat.com, michael.roth@amd.com, wei.w.wang@intel.com, liam.merwick@oracle.com, isaku.yamahata@gmail.com, kirill.shutemov@linux.intel.com, suzuki.poulose@arm.com, steven.price@arm.com, quic_eberman@quicinc.com, quic_mnalajal@quicinc.com, quic_tsoni@quicinc.com, quic_svaddagi@quicinc.com, quic_cvanscha@quicinc.com, quic_pderrin@quicinc.com, quic_pheragu@quicinc.com, catalin.marinas@arm.com, james.morse@arm.com, yuzenghui@huawei.com, oliver.upton@linux.dev, maz@kernel.org, will@kernel.org, qperret@google.com, keirf@google.com, roypat@amazon.co.uk, shuah@kernel.org, hch@infradead.org, jgg@nvidia.com, rientjes@google.com, jhubbard@nvidia.com, fvdl@google.com, hughd@google.com, jthoughton@google.com, peterx@redhat.com, pankaj.gupta@amd.com, ira.weiny@intel.com, tabba@google.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 829C21C0012 X-Stat-Signature: oizc3ur4s3wsb4cxb3nn4q4udmo5cxxn X-Rspam-User: X-Rspamd-Server: rspam07 X-HE-Tag: 1752058794-45899 X-HE-Meta: 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 7W8gtR6y 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: The original name was vague regarding its functionality. This Kconfig option specifically enables and gates the kvm_gmem_populate() function, which is responsible for populating a GPA range with guest data. The new name, KVM_GENERIC_GMEM_POPULATE, describes the purpose of the option: to enable generic guest_memfd population mechanisms. This improves clarity for developers and ensures the name accurately reflects the functionality it controls, especially as guest_memfd support expands beyond purely "private" memory scenarios. Reviewed-by: Ira Weiny Reviewed-by: Gavin Shan Reviewed-by: Shivank Garg Reviewed-by: Vlastimil Babka Co-developed-by: David Hildenbrand Signed-off-by: David Hildenbrand Signed-off-by: Fuad Tabba --- arch/x86/kvm/Kconfig | 6 +++--- include/linux/kvm_host.h | 2 +- virt/kvm/Kconfig | 2 +- virt/kvm/guest_memfd.c | 2 +- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index 2eeffcec5382..df1fdbb4024b 100644 --- a/arch/x86/kvm/Kconfig +++ b/arch/x86/kvm/Kconfig @@ -46,7 +46,7 @@ config KVM_X86 select HAVE_KVM_PM_NOTIFIER if PM select KVM_GENERIC_HARDWARE_ENABLING select KVM_GENERIC_PRE_FAULT_MEMORY - select KVM_GENERIC_PRIVATE_MEM if KVM_SW_PROTECTED_VM + select KVM_GENERIC_GMEM_POPULATE if KVM_SW_PROTECTED_VM select KVM_WERROR if WERROR config KVM @@ -95,7 +95,7 @@ config KVM_SW_PROTECTED_VM config KVM_INTEL tristate "KVM for Intel (and compatible) processors support" depends on KVM && IA32_FEAT_CTL - select KVM_GENERIC_PRIVATE_MEM if INTEL_TDX_HOST + select KVM_GENERIC_GMEM_POPULATE if INTEL_TDX_HOST select KVM_GENERIC_MEMORY_ATTRIBUTES if INTEL_TDX_HOST help Provides support for KVM on processors equipped with Intel's VT @@ -157,7 +157,7 @@ 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_PRIVATE_MEM + select KVM_GENERIC_GMEM_POPULATE select HAVE_KVM_ARCH_GMEM_PREPARE select HAVE_KVM_ARCH_GMEM_INVALIDATE help diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 755b09dcafce..359baaae5e9f 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -2556,7 +2556,7 @@ static inline int kvm_gmem_get_pfn(struct kvm *kvm, int kvm_arch_gmem_prepare(struct kvm *kvm, gfn_t gfn, kvm_pfn_t pfn, int max_order); #endif -#ifdef CONFIG_KVM_GENERIC_PRIVATE_MEM +#ifdef CONFIG_KVM_GENERIC_GMEM_POPULATE /** * kvm_gmem_populate() - Populate/prepare a GPA range with guest data * diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig index 49df4e32bff7..559c93ad90be 100644 --- a/virt/kvm/Kconfig +++ b/virt/kvm/Kconfig @@ -116,7 +116,7 @@ config KVM_GMEM select XARRAY_MULTI bool -config KVM_GENERIC_PRIVATE_MEM +config KVM_GENERIC_GMEM_POPULATE select KVM_GENERIC_MEMORY_ATTRIBUTES select KVM_GMEM bool diff --git a/virt/kvm/guest_memfd.c b/virt/kvm/guest_memfd.c index b2aa6bf24d3a..befea51bbc75 100644 --- a/virt/kvm/guest_memfd.c +++ b/virt/kvm/guest_memfd.c @@ -638,7 +638,7 @@ int kvm_gmem_get_pfn(struct kvm *kvm, struct kvm_memory_slot *slot, } EXPORT_SYMBOL_GPL(kvm_gmem_get_pfn); -#ifdef CONFIG_KVM_GENERIC_PRIVATE_MEM +#ifdef CONFIG_KVM_GENERIC_GMEM_POPULATE long kvm_gmem_populate(struct kvm *kvm, gfn_t start_gfn, void __user *src, long npages, kvm_gmem_populate_cb post_populate, void *opaque) { -- 2.50.0.727.gbf7dc18ff4-goog