From patchwork Mon May 12 12:37:21 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pranavkumar Sawargaonkar X-Patchwork-Id: 347999 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id E63CF140081 for ; Mon, 12 May 2014 22:38:58 +1000 (EST) Received: from localhost ([::1]:37446 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WjpVQ-00023b-Q3 for incoming@patchwork.ozlabs.org; Mon, 12 May 2014 08:38:56 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44619) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WjpUj-0000nz-LT for qemu-devel@nongnu.org; Mon, 12 May 2014 08:38:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WjpUd-0002K8-IG for qemu-devel@nongnu.org; Mon, 12 May 2014 08:38:13 -0400 Received: from mail-pa0-f49.google.com ([209.85.220.49]:33637) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WjpUd-0002K2-DS for qemu-devel@nongnu.org; Mon, 12 May 2014 08:38:07 -0400 Received: by mail-pa0-f49.google.com with SMTP id lj1so8446428pab.36 for ; Mon, 12 May 2014 05:38:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=QXwsc2T/wzd7WVw29Lwg/t0thfd2DTcRWVftC92y+Cg=; b=L/+GYnLMUxCSTPVUh2p4sEcgx1PQXy/mGEx9wR20VTBtHOhXzc9oiV4qtCxYj+lBYn yZewpEJumOzTrnhWws4xdsucHa7QU2BRbURiXxNQtCbVxF0/6QKv4x4D+YvL2nKkioY5 3hR0v83g9cwbZlcgnm61N3eQAhKYpr3zxdG0aAgplQ5ibKSa2uSocb6VR00cL1fBnz8Z ygO3euArBArPLyxFBhOKslb4Dx0JzqKc9sVxr+GSLx+MP6bbzt4NwdOEimy9df0mVB4e UjGXlMgiNruyEsCqphWYOpputRtXXF2XWZp9+LFMAlzYR1dK2Rg6r5iCSWPhQNQsNN/e RR9A== X-Gm-Message-State: ALoCoQmDX4vKvVdnVjElcWT9VkovYLmZBF8YeDQQ4NyUeyUlbqjgtWj6qwokYi/OXFUrGwLIwY4T X-Received: by 10.66.246.229 with SMTP id xz5mr55042212pac.119.1399898286795; Mon, 12 May 2014 05:38:06 -0700 (PDT) Received: from pnqlab006.amcc.com ([182.73.239.130]) by mx.google.com with ESMTPSA id ek2sm22718531pbd.30.2014.05.12.05.38.03 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 12 May 2014 05:38:06 -0700 (PDT) From: Pranavkumar Sawargaonkar To: qemu-devel@nongnu.org Date: Mon, 12 May 2014 18:07:21 +0530 Message-Id: <1399898246-4831-4-git-send-email-pranavkumar@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1399898246-4831-1-git-send-email-pranavkumar@linaro.org> References: <1399898246-4831-1-git-send-email-pranavkumar@linaro.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.85.220.49 Cc: peter.maydell@linaro.org, Anup Patel , patches@apm.com, robherring2@gmail.com, kvmarm@lists.cs.columbia.edu, christoffer.dall@linaro.org, Pranavkumar Sawargaonkar Subject: [Qemu-devel] [RFC PATCH V5 3/8] kvm: Handle exit reason KVM_EXIT_SYSTEM_EVENT X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org In-kernel PSCI v0.2 emulation of KVM ARM/ARM64 forwards SYSTEM_OFF and SYSTEM_RESET function calls to QEMU using KVM_EXIT_SYSTEM_EVENT exit reason. This patch updates kvm_cpu_exec() to handle KVM_SYSTEM_EVENT_SHUTDOWN and KVM_SYSTEM_EVENT_RESET system-level events from QEMU-side. Signed-off-by: Pranavkumar Sawargaonkar Signed-off-by: Anup Patel Reviewed-by: Peter Maydell --- kvm-all.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/kvm-all.c b/kvm-all.c index 5cb7f26..d038b46 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -1724,6 +1724,22 @@ int kvm_cpu_exec(CPUState *cpu) case KVM_EXIT_INTERNAL_ERROR: ret = kvm_handle_internal_error(cpu, run); break; + case KVM_EXIT_SYSTEM_EVENT: + switch (run->system_event.type) { + case KVM_SYSTEM_EVENT_SHUTDOWN: + qemu_system_shutdown_request(); + ret = EXCP_INTERRUPT; + break; + case KVM_SYSTEM_EVENT_RESET: + qemu_system_reset_request(); + ret = EXCP_INTERRUPT; + break; + default: + DPRINTF("kvm_arch_handle_exit\n"); + ret = kvm_arch_handle_exit(cpu, run); + break; + } + break; default: DPRINTF("kvm_arch_handle_exit\n"); ret = kvm_arch_handle_exit(cpu, run);