From nobody Thu Nov 6 08:24:35 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1539767528266800.1007942649306; Wed, 17 Oct 2018 02:12:08 -0700 (PDT) Received: from localhost ([::1]:34775 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gChs6-0003xi-P3 for importer@patchew.org; Wed, 17 Oct 2018 05:12:06 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56025) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gChP0-0004D2-Fu for qemu-devel@nongnu.org; Wed, 17 Oct 2018 04:42:03 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gChOv-0007uN-SP for qemu-devel@nongnu.org; Wed, 17 Oct 2018 04:42:02 -0400 Received: from out1.zte.com.cn ([202.103.147.172]:58332 helo=mxct.zte.com.cn) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gChOv-0007PP-BJ for qemu-devel@nongnu.org; Wed, 17 Oct 2018 04:41:57 -0400 Received: from mse01.zte.com.cn (unknown [10.30.3.20]) by Forcepoint Email with ESMTPS id 80F00E399E884D4C2F92; Wed, 17 Oct 2018 16:41:39 +0800 (CST) Received: from notes_smtp.zte.com.cn ([10.30.1.239]) by mse01.zte.com.cn with ESMTP id w9H8fTux053996; Wed, 17 Oct 2018 16:41:29 +0800 (GMT-8) (envelope-from peng.hao2@zte.com.cn) Received: from localhost.localdomain.localdomain ([10.74.120.59]) by szsmtp06.zte.com.cn (Lotus Domino Release 8.5.3FP6) with ESMTP id 2018101716415216-5075407 ; Wed, 17 Oct 2018 16:41:52 +0800 From: Peng Hao To: pbonzini@redhat.com, rkrcmar@redhat.com, mst@redhat.com, ehabkost@redhat.com Date: Thu, 18 Oct 2018 00:52:53 +0800 Message-Id: <1539795177-21038-2-git-send-email-peng.hao2@zte.com.cn> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1539795177-21038-1-git-send-email-peng.hao2@zte.com.cn> References: <1539795177-21038-1-git-send-email-peng.hao2@zte.com.cn> X-MIMETrack: Itemize by SMTP Server on SZSMTP06/server/zte_ltd(Release 8.5.3FP6|November 21, 2013) at 2018-10-17 16:41:52, Serialize by Router on notes_smtp/zte_ltd(Release 9.0.1FP7|August 17, 2016) at 2018-10-17 16:41:21, Serialize complete at 2018-10-17 16:41:21 X-MAIL: mse01.zte.com.cn w9H8fTux053996 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 202.103.147.172 Subject: [Qemu-devel] [PATCH V6 1/5] target/i386 : add coalesced pio support X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peng Hao , qemu-devel@nongnu.org, kvm@vger.kernel.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" add coalesced_pio's struct and KVM_CAP_COALESCED_PIO header. Signed-off-by: Peng Hao --- accel/kvm/kvm-all.c | 4 ++-- linux-headers/linux/kvm.h | 9 ++++++++- 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index de12f78..29d208d 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -537,7 +537,7 @@ static void kvm_coalesce_mmio_region(MemoryListener *li= stener, =20 zone.addr =3D start; zone.size =3D size; - zone.pad =3D 0; + zone.pio =3D 0; =20 (void)kvm_vm_ioctl(s, KVM_REGISTER_COALESCED_MMIO, &zone); } @@ -554,7 +554,7 @@ static void kvm_uncoalesce_mmio_region(MemoryListener *= listener, =20 zone.addr =3D start; zone.size =3D size; - zone.pad =3D 0; + zone.pio =3D 0; =20 (void)kvm_vm_ioctl(s, KVM_UNREGISTER_COALESCED_MMIO, &zone); } diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h index 83ba4eb..b5d4289 100644 --- a/linux-headers/linux/kvm.h +++ b/linux-headers/linux/kvm.h @@ -420,13 +420,19 @@ struct kvm_run { struct kvm_coalesced_mmio_zone { __u64 addr; __u32 size; - __u32 pad; + union { + __u32 pad; + __u32 pio; + }; }; =20 struct kvm_coalesced_mmio { __u64 phys_addr; __u32 len; + unino { __u32 pad; + __u32 pio; + }; __u8 data[8]; }; =20 @@ -953,6 +959,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_NESTED_STATE 157 #define KVM_CAP_ARM_INJECT_SERROR_ESR 158 #define KVM_CAP_MSR_PLATFORM_INFO 159 +#define KVM_CAP_COALESCED_PIO 160 =20 #ifdef KVM_CAP_IRQ_ROUTING =20 --=20 1.8.3.1