From patchwork Wed Oct 17 16:52:53 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peng Hao X-Patchwork-Id: 10645173 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1E67B109C for ; Wed, 17 Oct 2018 09:11:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 156192ACC5 for ; Wed, 17 Oct 2018 09:11:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 068562ACC7; Wed, 17 Oct 2018 09:11:57 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=2.0 tests=BAYES_00,DATE_IN_FUTURE_06_12, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A211A2AC50 for ; Wed, 17 Oct 2018 09:11:46 +0000 (UTC) Received: from localhost ([::1]:34775 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gChrk-0003xi-Qj for patchwork-qemu-devel@patchwork.kernel.org; Wed, 17 Oct 2018 05:11:45 -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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP 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 *listener, zone.addr = start; zone.size = size; - zone.pad = 0; + zone.pio = 0; (void)kvm_vm_ioctl(s, KVM_REGISTER_COALESCED_MMIO, &zone); } @@ -554,7 +554,7 @@ static void kvm_uncoalesce_mmio_region(MemoryListener *listener, zone.addr = start; zone.size = size; - zone.pad = 0; + zone.pio = 0; (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; + }; }; struct kvm_coalesced_mmio { __u64 phys_addr; __u32 len; + unino { __u32 pad; + __u32 pio; + }; __u8 data[8]; }; @@ -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 #ifdef KVM_CAP_IRQ_ROUTING