From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B5DEBFD877B for ; Tue, 17 Mar 2026 14:12:00 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 288866B009F; Tue, 17 Mar 2026 10:12:00 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 25FDE6B00A1; Tue, 17 Mar 2026 10:12:00 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 14F036B00A2; Tue, 17 Mar 2026 10:12:00 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 034EF6B009F for ; Tue, 17 Mar 2026 10:12:00 -0400 (EDT) Received: from smtpin12.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id BB9F3B593F for ; Tue, 17 Mar 2026 14:11:59 +0000 (UTC) X-FDA: 84555743958.12.B3E40EF Received: from fra-out-015.esa.eu-central-1.outbound.mail-perimeter.amazon.com (fra-out-015.esa.eu-central-1.outbound.mail-perimeter.amazon.com [18.158.153.154]) by imf08.hostedemail.com (Postfix) with ESMTP id E44F8160010 for ; Tue, 17 Mar 2026 14:11:56 +0000 (UTC) Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=amazon.co.uk header.s=amazoncorp2 header.b=cL1NhbJz; spf=pass (imf08.hostedemail.com: domain of "prvs=529a8c084=kalyazin@amazon.co.uk" designates 18.158.153.154 as permitted sender) smtp.mailfrom="prvs=529a8c084=kalyazin@amazon.co.uk"; dmarc=pass (policy=quarantine) header.from=amazon.co.uk ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1773756717; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=y0x5KoVb2XnhSb3FpN6GmZ1KmGrNgU7ZlSRbkqzUa08=; b=pRvYY4nO1VALPg7aWYYtt8KqDbOEndjC1zEY7K6DSNByD8DAMMqiZCDJSsX9FtfWxeuilA yXcyfepDa1Q/GEBA7+wiawRsOfYHbhIUSYD0GXGkDxfHgd9VL+bgvCbOxkaeV+1zzOM/U+ 6IAogRdfjBKhE69vOXSP7LPrp/Glxm8= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1773756717; a=rsa-sha256; cv=none; b=rH1FF+JAAqVgRmapNlUOY7zIKH/iL1xH9S6PtMFA8iK67r1lkzWBr+39/7GDhiYwG/tJHA 3b+HhLvYLcFXBvM2n66j6MZGzMyZE5zTFoMhFi1iIEdBE2V8GTeuUpjT9I7oIc2dkkjO9N E1s+epr3pkBdt/zLqu4Lt5v7WzhMZs4= ARC-Authentication-Results: i=1; imf08.hostedemail.com; dkim=pass header.d=amazon.co.uk header.s=amazoncorp2 header.b=cL1NhbJz; spf=pass (imf08.hostedemail.com: domain of "prvs=529a8c084=kalyazin@amazon.co.uk" designates 18.158.153.154 as permitted sender) smtp.mailfrom="prvs=529a8c084=kalyazin@amazon.co.uk"; dmarc=pass (policy=quarantine) header.from=amazon.co.uk DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.co.uk; i=@amazon.co.uk; q=dns/txt; s=amazoncorp2; t=1773756717; x=1805292717; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-transfer-encoding:mime-version; bh=y0x5KoVb2XnhSb3FpN6GmZ1KmGrNgU7ZlSRbkqzUa08=; b=cL1NhbJziGUwrbRKxXQ3abbl2OQGy+denOhb2+d+wVNA3QDL0OxMZnlr 0roRdvbUcJyQJa6H5AszIDcVzfyRjDpJAWAj2ICASCDQkap5NVAdI/AKw hB6T3VK3Co0JOp89q0H6Hn4ZWidWCd55DBaAnpfd2+8iYBwvXvOLSKbNM WaFj98gWieFwW8IgTulEnA7l5ovc7mmyu3n8EHOdl/vAsPyDw4zntCQsI Lj436nH3c1lj6xcy0/gl0it4MTDMhjrXO+r+9qxIcfzjpyU+ytVoXeXwF E3Uhs5N0s+2+O3lyY6MxIDdonBLElR2Xq8/XACteNBbIVwh649wU/vxX9 A==; X-CSE-ConnectionGUID: Dl0HC9MwQMa+Q3LUUQfzuQ== X-CSE-MsgGUID: DA3VCEsDRPWtBlGsfxdvSQ== X-IronPort-AV: E=Sophos;i="6.23,124,1770595200"; d="scan'208";a="10880459" Received: from ip-10-6-3-216.eu-central-1.compute.internal (HELO smtpout.naws.eu-central-1.prod.farcaster.email.amazon.dev) ([10.6.3.216]) by internal-fra-out-015.esa.eu-central-1.outbound.mail-perimeter.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Mar 2026 14:11:55 +0000 Received: from EX19MTAEUB001.ant.amazon.com [54.240.197.234:18272] by smtpin.naws.eu-central-1.prod.farcaster.email.amazon.dev [10.0.15.31:2525] with esmtp (Farcaster) id 98ad6bdf-0bd7-47fe-9110-00c11837fc04; Tue, 17 Mar 2026 14:11:54 +0000 (UTC) X-Farcaster-Flow-ID: 98ad6bdf-0bd7-47fe-9110-00c11837fc04 Received: from EX19D005EUB001.ant.amazon.com (10.252.51.12) by EX19MTAEUB001.ant.amazon.com (10.252.51.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.37; Tue, 17 Mar 2026 14:11:53 +0000 Received: from EX19D005EUB003.ant.amazon.com (10.252.51.31) by EX19D005EUB001.ant.amazon.com (10.252.51.12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.37; Tue, 17 Mar 2026 14:11:53 +0000 Received: from EX19D005EUB003.ant.amazon.com ([fe80::b825:becb:4b38:da0c]) by EX19D005EUB003.ant.amazon.com ([fe80::b825:becb:4b38:da0c%3]) with mapi id 15.02.2562.037; Tue, 17 Mar 2026 14:11:53 +0000 From: "Kalyazin, Nikita" To: "kvm@vger.kernel.org" , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "kvmarm@lists.linux.dev" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" , "bpf@vger.kernel.org" , "linux-kselftest@vger.kernel.org" , "kernel@xen0n.name" , "linux-riscv@lists.infradead.org" , "linux-s390@vger.kernel.org" , "loongarch@lists.linux.dev" , "linux-pm@vger.kernel.org" CC: "pbonzini@redhat.com" , "corbet@lwn.net" , "maz@kernel.org" , "oupton@kernel.org" , "joey.gouly@arm.com" , "suzuki.poulose@arm.com" , "yuzenghui@huawei.com" , "catalin.marinas@arm.com" , "will@kernel.org" , "seanjc@google.com" , "tglx@kernel.org" , "mingo@redhat.com" , "bp@alien8.de" , "dave.hansen@linux.intel.com" , "x86@kernel.org" , "hpa@zytor.com" , "luto@kernel.org" , "peterz@infradead.org" , "willy@infradead.org" , "akpm@linux-foundation.org" , "david@kernel.org" , "lorenzo.stoakes@oracle.com" , "vbabka@kernel.org" , "rppt@kernel.org" , "surenb@google.com" , "mhocko@suse.com" , "ast@kernel.org" , "daniel@iogearbox.net" , "andrii@kernel.org" , "martin.lau@linux.dev" , "eddyz87@gmail.com" , "song@kernel.org" , "yonghong.song@linux.dev" , "john.fastabend@gmail.com" , "kpsingh@kernel.org" , "sdf@fomichev.me" , "haoluo@google.com" , "jolsa@kernel.org" , "jgg@ziepe.ca" , "jhubbard@nvidia.com" , "peterx@redhat.com" , "jannh@google.com" , "pfalcato@suse.de" , "skhan@linuxfoundation.org" , "riel@surriel.com" , "ryan.roberts@arm.com" , "jgross@suse.com" , "yu-cheng.yu@intel.com" , "kas@kernel.org" , "coxu@redhat.com" , "kevin.brodsky@arm.com" , "ackerleytng@google.com" , "yosry@kernel.org" , "ajones@ventanamicro.com" , "maobibo@loongson.cn" , "tabba@google.com" , "prsampat@amd.com" , "wu.fei9@sanechips.com.cn" , "mlevitsk@redhat.com" , "jmattson@google.com" , "jthoughton@google.com" , "agordeev@linux.ibm.com" , "alex@ghiti.fr" , "aou@eecs.berkeley.edu" , "borntraeger@linux.ibm.com" , "chenhuacai@kernel.org" , "dev.jain@arm.com" , "gor@linux.ibm.com" , "hca@linux.ibm.com" , "palmer@dabbelt.com" , "pjw@kernel.org" , "shijie@os.amperecomputing.com" , "svens@linux.ibm.com" , "thuth@redhat.com" , "wyihan@google.com" , "yang@os.amperecomputing.com" , "Jonathan.Cameron@huawei.com" , "Liam.Howlett@oracle.com" , "urezki@gmail.com" , "zhengqi.arch@bytedance.com" , "gerald.schaefer@linux.ibm.com" , "jiayuan.chen@shopee.com" , "lenb@kernel.org" , "osalvador@suse.de" , "pavel@kernel.org" , "rafael@kernel.org" , "vannapurve@google.com" , "jackmanb@google.com" , "aneesh.kumar@kernel.org" , "patrick.roy@linux.dev" , "Thomson, Jack" , "Itazuri, Takahiro" , "Manwaring, Derek" , "Kalyazin, Nikita" , Vlastimil Babka Subject: [PATCH v11 07/16] KVM: guest_memfd: Add stub for kvm_arch_gmem_invalidate Thread-Topic: [PATCH v11 07/16] KVM: guest_memfd: Add stub for kvm_arch_gmem_invalidate Thread-Index: AQHcthgBZn18ggWzQ06mGEbWQ0oCgg== Date: Tue, 17 Mar 2026 14:11:53 +0000 Message-ID: <20260317141031.514-8-kalyazin@amazon.com> References: <20260317141031.514-1-kalyazin@amazon.com> In-Reply-To: <20260317141031.514-1-kalyazin@amazon.com> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.19.103.116] Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Stat-Signature: ezc4fhiy3u5sittkaow94tfsqjepzh5x X-Rspam-User: X-Rspamd-Queue-Id: E44F8160010 X-Rspamd-Server: rspam12 X-HE-Tag: 1773756716-999430 X-HE-Meta: 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 jZWDOUtV 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Patrick Roy =0A= =0A= Add a no-op stub for kvm_arch_gmem_invalidate if=0A= CONFIG_HAVE_KVM_ARCH_GMEM_INVALIDATE=3Dn. This allows defining=0A= kvm_gmem_free_folio without ifdef-ery, which allows more cleanly using=0A= guest_memfd's free_folio callback for non-arch-invalidation related=0A= code.=0A= =0A= Acked-by: David Hildenbrand (Red Hat) =0A= Signed-off-by: Patrick Roy =0A= Acked-by: Vlastimil Babka =0A= Reviewed-by: Ackerley Tng =0A= Signed-off-by: Nikita Kalyazin =0A= ---=0A= include/linux/kvm_host.h | 2 ++=0A= virt/kvm/guest_memfd.c | 4 ----=0A= 2 files changed, 2 insertions(+), 4 deletions(-)=0A= =0A= diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h=0A= index 6b76e7a6f4c2..e8aa3d676c31 100644=0A= --- a/include/linux/kvm_host.h=0A= +++ b/include/linux/kvm_host.h=0A= @@ -2587,6 +2587,8 @@ long kvm_gmem_populate(struct kvm *kvm, gfn_t gfn, vo= id __user *src, long npages=0A= =0A= #ifdef CONFIG_HAVE_KVM_ARCH_GMEM_INVALIDATE=0A= void kvm_arch_gmem_invalidate(kvm_pfn_t start, kvm_pfn_t end);=0A= +#else=0A= +static inline void kvm_arch_gmem_invalidate(kvm_pfn_t start, kvm_pfn_t end= ) { }=0A= #endif=0A= =0A= #ifdef CONFIG_KVM_GENERIC_PRE_FAULT_MEMORY=0A= diff --git a/virt/kvm/guest_memfd.c b/virt/kvm/guest_memfd.c=0A= index 017d84a7adf3..651649623448 100644=0A= --- a/virt/kvm/guest_memfd.c=0A= +++ b/virt/kvm/guest_memfd.c=0A= @@ -522,7 +522,6 @@ static int kvm_gmem_error_folio(struct address_space *m= apping, struct folio *fol=0A= return MF_DELAYED;=0A= }=0A= =0A= -#ifdef CONFIG_HAVE_KVM_ARCH_GMEM_INVALIDATE=0A= static void kvm_gmem_free_folio(struct folio *folio)=0A= {=0A= struct page *page =3D folio_page(folio, 0);=0A= @@ -531,15 +530,12 @@ static void kvm_gmem_free_folio(struct folio *folio)= =0A= =0A= kvm_arch_gmem_invalidate(pfn, pfn + (1ul << order));=0A= }=0A= -#endif=0A= =0A= static const struct address_space_operations kvm_gmem_aops =3D {=0A= .dirty_folio =3D noop_dirty_folio,=0A= .migrate_folio =3D kvm_gmem_migrate_folio,=0A= .error_remove_folio =3D kvm_gmem_error_folio,=0A= -#ifdef CONFIG_HAVE_KVM_ARCH_GMEM_INVALIDATE=0A= .free_folio =3D kvm_gmem_free_folio,=0A= -#endif=0A= };=0A= =0A= static int kvm_gmem_setattr(struct mnt_idmap *idmap, struct dentry *dentry= ,=0A= -- =0A= 2.50.1=0A= =0A=