From nobody Sat Nov 15 12:46:56 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass header.i=@intel.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1752550849; cv=none; d=zohomail.com; s=zohoarc; b=CbOV/pU9NSy3d2zf1b/anAR1vZS1DcRg1Nq6AYsUGxOcueEefKxenMsxo6O8DdxkDJE1FduKFczIOknQqpVgLWO5qhn5hlfzH7urCSZU3PwGNf/7G0GhjL8LU7CoWvBPwnm0HiSjDM2EG/p8eBSPgDTAN6qt65bjKcuUFJhkJAs= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1752550849; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=9//okwp2grTSVDVJq1HYD0Gkr1nUZpULg2mcHX7VX+M=; b=l8fuwpA18a/13HpOUmOsTFh5tsG+e+cH7/wNlJL7V5f8i5jrGV1hcUKGKVSovIsotosCwAzIjUzhDvWRCqMS4uOU9fWLr2d/HWAlVX7ZoXe8mcavdewN4AyxuVeNbkDmEU5IlfMTJzEELZsBOjDHb/m5mw4xKNGszVsFLuh9Mzk= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=@intel.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1752550849718251.41549430645523; Mon, 14 Jul 2025 20:40:49 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ubWWS-00046Z-UY; Mon, 14 Jul 2025 23:40:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ubWWR-00045J-1G for qemu-devel@nongnu.org; Mon, 14 Jul 2025 23:40:03 -0400 Received: from mgamail.intel.com ([192.198.163.8]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ubWWO-0006Rk-Vy for qemu-devel@nongnu.org; Mon, 14 Jul 2025 23:40:02 -0400 Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jul 2025 20:40:00 -0700 Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by fmviesa002.fm.intel.com with ESMTP; 14 Jul 2025 20:39:56 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1752550801; x=1784086801; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Q4SUK8FgUWLQ+4A301fwccsLC3/hT+jdFcVfpJvYn+8=; b=mv2jQ3l+hDHFdztn9cVsxN0L/PssMjyQseLJZHylZQ+MZjN6x8/hCUsq 5xMhxMj2NNF3P7b2crbw57ubGT3nWCwAmW3UBkbEDFbscsorPyyEz+r0k KEq0YwSdYvg8Wp93ZJQ4jCQQt8a6xs3o2jmE+xFon70YiVOf0cOaMawk6 yQr7uWSTk1UX+gqOKBYD2VmPKX7wz56I74MUySlmg7St0BuPKMsu3EebU 8vkfpF2Oc8DTbFc0TPihOzGzUO/mTgWImKDp+4XtTQhFXqTKxpQ+AtVD7 2YQtdAK/u1VSiaH35Is+F+N5+E833plss6Uy/e2d5p0cOZTQUn9mSpYS3 w==; X-CSE-ConnectionGUID: OIa+c+qqTrWpv/GcbcJdEA== X-CSE-MsgGUID: cMOcKwo+Sc2kexls5ARLgA== X-IronPort-AV: E=McAfee;i="6800,10657,11491"; a="72334926" X-IronPort-AV: E=Sophos;i="6.16,312,1744095600"; d="scan'208";a="72334926" X-CSE-ConnectionGUID: xwHQgJYWS6Waa1s9cAT7Hg== X-CSE-MsgGUID: C+4jFUV2S3CD/bdO7Y/0qQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,312,1744095600"; d="scan'208";a="180808100" From: Xiaoyao Li To: Paolo Bonzini , David Hildenbrand , ackerleytng@google.com, seanjc@google.com Cc: Fuad Tabba , Vishal Annapurve , rick.p.edgecombe@intel.com, Kai Huang , binbin.wu@linux.intel.com, yan.y.zhao@intel.com, ira.weiny@intel.com, michael.roth@amd.com, kvm@vger.kernel.org, qemu-devel@nongnu.org, Peter Xu , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [POC PATCH 2/5] headers: Fetch gmem updates Date: Tue, 15 Jul 2025 11:31:38 +0800 Message-ID: <20250715033141.517457-3-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250715033141.517457-1-xiaoyao.li@intel.com> References: <20250715033141.517457-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=192.198.163.8; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1752550851287116600 Content-Type: text/plain; charset="utf-8" Signed-off-by: Xiaoyao Li --- linux-headers/linux/guestmem.h | 29 +++++++++++++++++++++++++++++ linux-headers/linux/kvm.h | 18 ++++++++++++++++++ 2 files changed, 47 insertions(+) create mode 100644 linux-headers/linux/guestmem.h diff --git a/linux-headers/linux/guestmem.h b/linux-headers/linux/guestmem.h new file mode 100644 index 000000000000..be045fbad230 --- /dev/null +++ b/linux-headers/linux/guestmem.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _LINUX_GUESTMEM_H +#define _LINUX_GUESTMEM_H + +/* + * Huge page size must be explicitly defined when using the guestmem_huget= lb + * allocator for guest_memfd. It is the responsibility of the application= to + * know which sizes are supported on the running system. See mmap(2) man = page + * for details. + */ + +#define GUESTMEM_HUGETLB_FLAG_SHIFT 58 +#define GUESTMEM_HUGETLB_FLAG_MASK 0x3fUL + +#define GUESTMEM_HUGETLB_FLAG_16KB (14UL << GUESTMEM_HUGETLB_FLAG_SHIFT) +#define GUESTMEM_HUGETLB_FLAG_64KB (16UL << GUESTMEM_HUGETLB_FLAG_SHIFT) +#define GUESTMEM_HUGETLB_FLAG_512KB (19UL << GUESTMEM_HUGETLB_FLAG_SHIFT) +#define GUESTMEM_HUGETLB_FLAG_1MB (20UL << GUESTMEM_HUGETLB_FLAG_SHIFT) +#define GUESTMEM_HUGETLB_FLAG_2MB (21UL << GUESTMEM_HUGETLB_FLAG_SHIFT) +#define GUESTMEM_HUGETLB_FLAG_8MB (23UL << GUESTMEM_HUGETLB_FLAG_SHIFT) +#define GUESTMEM_HUGETLB_FLAG_16MB (24UL << GUESTMEM_HUGETLB_FLAG_SHIFT) +#define GUESTMEM_HUGETLB_FLAG_32MB (25UL << GUESTMEM_HUGETLB_FLAG_SHIFT) +#define GUESTMEM_HUGETLB_FLAG_256MB (28UL << GUESTMEM_HUGETLB_FLAG_SHIFT) +#define GUESTMEM_HUGETLB_FLAG_512MB (29UL << GUESTMEM_HUGETLB_FLAG_SHIFT) +#define GUESTMEM_HUGETLB_FLAG_1GB (30UL << GUESTMEM_HUGETLB_FLAG_SHIFT) +#define GUESTMEM_HUGETLB_FLAG_2GB (31UL << GUESTMEM_HUGETLB_FLAG_SHIFT) +#define GUESTMEM_HUGETLB_FLAG_16GB (34UL << GUESTMEM_HUGETLB_FLAG_SHIFT) + +#endif /* _LINUX_GUESTMEM_H */ diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h index 32c5885a3c20..ff9ef5fb37c5 100644 --- a/linux-headers/linux/kvm.h +++ b/linux-headers/linux/kvm.h @@ -952,6 +952,9 @@ struct kvm_enable_cap { #define KVM_CAP_ARM_EL2 240 #define KVM_CAP_ARM_EL2_E2H0 241 #define KVM_CAP_RISCV_MP_STATE_RESET 242 +#define KVM_CAP_GMEM_SHARED_MEM 240 +#define KVM_CAP_GMEM_CONVERSION 241 +#define KVM_CAP_GMEM_HUGETLB 242 =20 struct kvm_irq_routing_irqchip { __u32 irqchip; @@ -1589,12 +1592,27 @@ struct kvm_memory_attributes { =20 #define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest= _memfd) =20 +#define GUEST_MEMFD_FLAG_SUPPORT_SHARED (1UL << 0) +#define GUEST_MEMFD_FLAG_INIT_PRIVATE (1UL << 1) +#define GUEST_MEMFD_FLAG_HUGETLB (1UL << 2) + struct kvm_create_guest_memfd { __u64 size; __u64 flags; __u64 reserved[6]; }; =20 +#define KVM_GMEM_IO 0xAF +#define KVM_GMEM_CONVERT_SHARED _IOWR(KVM_GMEM_IO, 0x41, struct kvm_gmem= _convert) +#define KVM_GMEM_CONVERT_PRIVATE _IOWR(KVM_GMEM_IO, 0x42, struct kvm_gmem= _convert) + +struct kvm_gmem_convert { + __u64 offset; + __u64 size; + __u64 error_offset; + __u64 reserved[5]; +}; + #define KVM_PRE_FAULT_MEMORY _IOWR(KVMIO, 0xd5, struct kvm_pre_fault_memor= y) =20 struct kvm_pre_fault_memory { --=20 2.43.0