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AJvYcCXpijXIGiRfOIMUKJRiZ2n70CbT9HoEG3Om1et0VMq4/j8Wyat3wj5N+7yCprV73NgyC4dBtKSbvg==@kvack.org X-Gm-Message-State: AOJu0YzGtas6eUsrSNq4vpMHzqdNwrOb++pcKqsl96knb0A0WHUr/sQM DSAVzHhjI4OfIROCXR443DuSFxr3FCAZ0ghhWOniZQ5EBUoNljO9YZY2cSXDrfB1/4xZKEPu6Yu gFw== X-Google-Smtp-Source: AGHT+IH9ipyPGuO8V82XBpfvrhIepf1jzkzfgTXGPdhYm+JoZw3MCGOKBqX02lTq+T6nYvHhNxdAlVbf4Q== X-Received: from wrce6.prod.google.com ([2002:adf:9bc6:0:b0:3a5:7dbc:4d24]) (user=tabba job=prod-delivery.src-stubby-dispatcher) by 2002:a5d:5f52:0:b0:3b4:990b:9ee7 with SMTP id ffacd0b85a97d-3b5f18959b5mr13313952f8f.22.1752572036063; Tue, 15 Jul 2025 02:33:56 -0700 (PDT) Date: Tue, 15 Jul 2025 10:33:31 +0100 In-Reply-To: <20250715093350.2584932-1-tabba@google.com> Mime-Version: 1.0 References: <20250715093350.2584932-1-tabba@google.com> X-Mailer: git-send-email 2.50.0.727.gbf7dc18ff4-goog Message-ID: <20250715093350.2584932-3-tabba@google.com> Subject: [PATCH v14 02/21] 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: B0EDB1C000E X-Stat-Signature: kuid59f4d76wa19jjw3bg1nw6dqxx69t X-Rspam-User: X-Rspamd-Server: rspam11 X-HE-Tag: 1752572037-486668 X-HE-Meta: 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 5UFghod+ 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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