From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f74.google.com (mail-wr1-f74.google.com [209.85.221.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 09B1F2D6406 for ; Tue, 15 Jul 2025 09:33:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.74 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752572040; cv=none; b=I+nRQXrqEPk6+/voLrGmDnYhV1JFB6ijLaQ2QDNtMM10k5MufuNFfbzmIaWn+TV3N1oKXQZqAD5jbUOSpCzo/W31rlZe/lDzwBXrYy+eHUCDRXo3O35EgpULUayz91vbF3ud1PFJHXLI8m12H9m4ehrCL/6nD5/8uZf6mutMlew= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752572040; c=relaxed/simple; bh=H09IkjV4Xil817na22yCswVhU23DwQZ/x+bC3unupSo=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=mSEJwkVmes282o8pCFj7f7WB6ES7pxTBWReWAuQHX3qhLrgUrrGWpW56judNoWA6B+NXnHiwygFMSh1gxs1IAnqlCYjXrz5MgGwpeGCXr9GEE+Xul+dJjpRK28/iVhNEL/Mo++jvu44s3hkMn+4iMqQsmcv5+Bp0XQtHFM4KaEM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--tabba.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=4aN7lQRr; arc=none smtp.client-ip=209.85.221.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--tabba.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="4aN7lQRr" Received: by mail-wr1-f74.google.com with SMTP id ffacd0b85a97d-3b5fe97af5fso900762f8f.2 for ; Tue, 15 Jul 2025 02:33:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1752572036; x=1753176836; darn=lists.linux.dev; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=PJ/wXOElC+Z8OeCgIzyNM4mWk3Ktz7XTnyHef6ynGNw=; b=4aN7lQRrAAWj78DBf6xjEwI8ygT5e9SRA76BBxDpEFZsrdub4CYL+Ij51byUmnY1gn JBRg1UDBdlAdlvXDhTVOnuKAu6WoRWNlP18xwkf9o8+UHEhqEYuH0squeqy+Pn9Jjp8J P3vbRR0UFtZLF+arDNSbbx3HbZQTd/nXu8jUyyMB1pyjp5/1i5hZV8BXJ+Bie7omBKpb cZqYLgbvO4xFZVYduZaMZxxDZ6D6AukhSqrNeiEowy36muqYo8RoMDz7AryVOkcr+gtU 2GXGWIGVBBOIHERFjMS0+ErG2S6SrXK0zOE4hda9f0Sq3D+HrFSVZKwyow/xS4QZNyri fkxA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752572036; x=1753176836; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=PJ/wXOElC+Z8OeCgIzyNM4mWk3Ktz7XTnyHef6ynGNw=; b=O9NXMRc80AvvrywNR+I2oCKx72zNxnL5NHh7RpmkFj8bYVKJjammbFuLeXLvNKSKko SpQ/z8Sd0+VbNIk6/9mBDfWBm96KYd0RBKTJLVwGiGEPZANUYNcqaTeZHqR15EW2o1sD 7Sj2eEGeyj2sc1LR124p6hP5sCsVg1n540qcnqqbH9+SQgzI2ct/fPtA2MqP3jGZ8cqW BmlazfYP4BaS0hY+igTyTqyvl0bFrlWdvEpDlRjRqSlBjrMs/IxjBZ+DWfNVAQMCT1Xf hXYuPzNs5Thve80sl7g7ATa/KX2pvGPPKH4auuoB1CP0dgzcMXgNbyjnJV+CGSx6ejuF 2EqQ== X-Forwarded-Encrypted: i=1; AJvYcCUpwqrmwTu5s+FSBKgpd8KlRzIoVQT915coGvpGIBnSHkSnSqVYU1O5KTvZbFLGduFHkGMORkM=@lists.linux.dev X-Gm-Message-State: AOJu0YwPGstL9YRDYbbBztXEx1N2la5GEVPUZ8aU90N7yDmI4p3DPOfE URBIgMqQMm9h/+xNnrLchOpas3BPjs+PRMVQPZJ2/xMPi7W7JzcI1QdVO3l7bQ+SBlHq+BlUdlS nEA== 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> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: 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" 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