From patchwork Mon May 27 06:27:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Patchwork-Id: 13674612 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 55E5FC25B74 for ; Mon, 27 May 2024 06:29:14 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sBTqU-0002PM-0S; Mon, 27 May 2024 02:28:34 -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 1sBTq9-0002Ei-OP for qemu-devel@nongnu.org; Mon, 27 May 2024 02:28:13 -0400 Received: from todd.t-8ch.de ([159.69.126.157]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sBTq7-0004qD-Hl for qemu-devel@nongnu.org; Mon, 27 May 2024 02:28:13 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=t-8ch.de; s=mail; t=1716791283; bh=s5VaI29lwZj1ic4YhfNoQySSm+8g+nzVFlmlxZMx79I=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=GG6Gk6EL54vJcshYSoUXOFF/d9332hutWk2dWDyLmitmoPBEH0hybxmTzWmpz/q+T 2AbVTA0dUsmhPss994RjENrEGbmDBgDoO5boV4dz6rqoKCokyjdRGal+XRbNFms9Mq 3yIbFVZbu13hINuXL577NvQ9l2FFj+uC6u2b0TaU= From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Date: Mon, 27 May 2024 08:27:51 +0200 Subject: [PATCH v8 5/8] hw/misc/pvpanic: add support for normal shutdowns MIME-Version: 1.0 Message-Id: <20240527-pvpanic-shutdown-v8-5-5a28ec02558b@t-8ch.de> References: <20240527-pvpanic-shutdown-v8-0-5a28ec02558b@t-8ch.de> In-Reply-To: <20240527-pvpanic-shutdown-v8-0-5a28ec02558b@t-8ch.de> To: "Michael S. Tsirkin" , Cornelia Huck , Paolo Bonzini , Thomas Huth , Laurent Vivier , Eric Blake , Markus Armbruster Cc: qemu-devel@nongnu.org, Alejandro Jimenez , kvm@vger.kernel.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1716791282; l=2474; i=thomas@t-8ch.de; s=20221212; h=from:subject:message-id; bh=s5VaI29lwZj1ic4YhfNoQySSm+8g+nzVFlmlxZMx79I=; b=eFGqUTzQJobqUIXaRVRjnXdRt672/izm7hsoRvVKqM2uiQXXKoPkEA8RyjnGlWkZMwN6un8u+ kNpbRtoMzmFB7kPmcu99bp2Cmr4kbzWQ4v1miX/rt4vIzv+l4snBlJk X-Developer-Key: i=thomas@t-8ch.de; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= Received-SPF: pass client-ip=159.69.126.157; envelope-from=thomas@t-8ch.de; helo=todd.t-8ch.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Shutdown requests are normally hardware dependent. By extending pvpanic to also handle shutdown requests, guests can submit such requests with an easily implementable and cross-platform mechanism. Acked-by: Cornelia Huck Signed-off-by: Thomas Weißschuh --- hw/misc/pvpanic.c | 5 +++++ include/hw/misc/pvpanic.h | 2 +- include/sysemu/runstate.h | 1 + system/runstate.c | 5 +++++ 4 files changed, 12 insertions(+), 1 deletion(-) diff --git a/hw/misc/pvpanic.c b/hw/misc/pvpanic.c index a4982cc5928e..0e9505451a7a 100644 --- a/hw/misc/pvpanic.c +++ b/hw/misc/pvpanic.c @@ -40,6 +40,11 @@ static void handle_event(int event) qemu_system_guest_crashloaded(NULL); return; } + + if (event & PVPANIC_SHUTDOWN) { + qemu_system_guest_pvshutdown(); + return; + } } /* return supported events on read */ diff --git a/include/hw/misc/pvpanic.h b/include/hw/misc/pvpanic.h index 947468b81b1a..fbbf2bbf5dbb 100644 --- a/include/hw/misc/pvpanic.h +++ b/include/hw/misc/pvpanic.h @@ -20,7 +20,7 @@ #include "standard-headers/linux/pvpanic.h" -#define PVPANIC_EVENTS (PVPANIC_PANICKED | PVPANIC_CRASH_LOADED) +#define PVPANIC_EVENTS (PVPANIC_PANICKED | PVPANIC_CRASH_LOADED | PVPANIC_SHUTDOWN) #define TYPE_PVPANIC_ISA_DEVICE "pvpanic" #define TYPE_PVPANIC_PCI_DEVICE "pvpanic-pci" diff --git a/include/sysemu/runstate.h b/include/sysemu/runstate.h index 0117d243c4ed..e210a37abf0f 100644 --- a/include/sysemu/runstate.h +++ b/include/sysemu/runstate.h @@ -104,6 +104,7 @@ void qemu_system_killed(int signal, pid_t pid); void qemu_system_reset(ShutdownCause reason); void qemu_system_guest_panicked(GuestPanicInformation *info); void qemu_system_guest_crashloaded(GuestPanicInformation *info); +void qemu_system_guest_pvshutdown(void); bool qemu_system_dump_in_progress(void); #endif diff --git a/system/runstate.c b/system/runstate.c index cb4905a40fce..83055f327831 100644 --- a/system/runstate.c +++ b/system/runstate.c @@ -585,6 +585,11 @@ void qemu_system_guest_crashloaded(GuestPanicInformation *info) qapi_free_GuestPanicInformation(info); } +void qemu_system_guest_pvshutdown(void) +{ + qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); +} + void qemu_system_reset_request(ShutdownCause reason) { if (reboot_action == REBOOT_ACTION_SHUTDOWN &&