From nobody Wed Nov 27 13:00:39 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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 ARC-Seal: i=1; a=rsa-sha256; t=1699097195; cv=none; d=zohomail.com; s=zohoarc; b=l9Tkz8r+Mlh3RsuS5y77Kei3xtFG8/xu8+48/yL9kFey3EWToLi6Abo5DJ4RBDI7VH/Hz4oD05SEpbbOB7uurqXGT6HMOq8eIKdTjB1R+jIxbiQgkfivMscifTJ/WnTIW6QJqJSRSWvDs9l41W0oEXF8ddE7O42skOrTprJXdiU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1699097195; h=Content-Type: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=/8PUhYxac1OqxDEXl5IFqLLVJFv8GjgzGilxXvfUO5o=; b=hXFwg5EQzrUG6yq9IN7roRLiMEgF24328qEY7+9X8os6VUosgCinlECbY7vtY625a2YqpWBajwQbBJ1dpFdi6OMb6JDOu2q6+mW0P+BQjIORqb3rM60craRuHWfekPnuv5abn1vm32bGPVQ6zBGrHFrpbI2ogV2CKkfzFKTE9zs= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1699097194763111.49398810471723; Sat, 4 Nov 2023 04:26:34 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qzEmg-0003wk-GX; Sat, 04 Nov 2023 07:25:46 -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 1qzEmc-0003wM-0p for qemu-devel@nongnu.org; Sat, 04 Nov 2023 07:25:42 -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 1qzEmY-0004MR-Us for qemu-devel@nongnu.org; Sat, 04 Nov 2023 07:25:40 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=t-8ch.de; s=mail; t=1699097130; bh=cROi1E4eq1ZsYUkmqRjGFWSOnESyNSIhF4wVgU9TS9I=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=OYXdy48t7cX/XMhmaKNSg0x3quM7zMlKnq/NzBcLGnGz+gpKEu/NEXwPxzHWTl1EA 6kaGOFVEYNRudnzuSbJ50g+EUsmsOUX7gEn2vYf1dGZ9OwCyONQpkoMN5v6ffsgFqz o3YH7I562hQ2/rWZkSQ948+Unpdb2BQ3/VP/cVA4= From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Date: Sat, 04 Nov 2023 12:25:24 +0100 Subject: [PATCH RFC 3/3] hw/misc/pvpanic: add support for normal shutdowns MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20231104-pvpanic-shutdown-v1-3-02353157891b@t-8ch.de> References: <20231104-pvpanic-shutdown-v1-0-02353157891b@t-8ch.de> In-Reply-To: <20231104-pvpanic-shutdown-v1-0-02353157891b@t-8ch.de> To: "Michael S. Tsirkin" , Cornelia Huck , Paolo Bonzini , Thomas Huth , Laurent Vivier Cc: qemu-devel@nongnu.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=ed25519-sha256; t=1699097130; l=2339; i=thomas@t-8ch.de; s=20221212; h=from:subject:message-id; bh=cROi1E4eq1ZsYUkmqRjGFWSOnESyNSIhF4wVgU9TS9I=; b=BVeHHAz14/hVSDIm3DHzP6eH0w1kWmvCXpXvHKoMrovySwskl9m8sluymiZ7JlFt+NaNEAU0k B5fAGX+imo9CLxJT14o5ksciBySZD0OFtD3BdHEEn1EJ8cMgeKl4TY5 X-Developer-Key: i=thomas@t-8ch.de; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= 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=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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @t-8ch.de) X-ZM-MESSAGEID: 1699097198066100002 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. Signed-off-by: Thomas Wei=C3=9Fschuh --- docs/specs/pvpanic.rst | 2 ++ hw/misc/pvpanic.c | 5 +++++ include/hw/misc/pvpanic.h | 2 +- include/standard-headers/linux/pvpanic.h | 1 + 4 files changed, 9 insertions(+), 1 deletion(-) diff --git a/docs/specs/pvpanic.rst b/docs/specs/pvpanic.rst index f894bc19555f..796cc0348a38 100644 --- a/docs/specs/pvpanic.rst +++ b/docs/specs/pvpanic.rst @@ -29,6 +29,8 @@ bit 1 a guest panic has happened and will be handled by the guest; the host should record it or report it, but should not affect the execution of the guest. +bit 2 + a guest shutdown has happened and should be processed by the host =20 PCI Interface ------------- diff --git a/hw/misc/pvpanic.c b/hw/misc/pvpanic.c index a4982cc5928e..246f9ae4e992 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_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); + return; + } } =20 /* return supported events on read */ diff --git a/include/hw/misc/pvpanic.h b/include/hw/misc/pvpanic.h index 198047dc86ff..fa76ad93d998 100644 --- a/include/hw/misc/pvpanic.h +++ b/include/hw/misc/pvpanic.h @@ -23,7 +23,7 @@ #define TYPE_PVPANIC_PCI_DEVICE "pvpanic-pci" =20 #define PVPANIC_IOPORT_PROP "ioport" -#define PVPANIC_EVENTS (PVPANIC_PANICKED | PVPANIC_CRASH_LOADED) +#define PVPANIC_EVENTS (PVPANIC_PANICKED | PVPANIC_CRASH_LOADED | PVPANIC_= SHUTDOWN) =20 /* * PVPanicState for any device type diff --git a/include/standard-headers/linux/pvpanic.h b/include/standard-he= aders/linux/pvpanic.h index 54b7485390d3..38e53ad45929 100644 --- a/include/standard-headers/linux/pvpanic.h +++ b/include/standard-headers/linux/pvpanic.h @@ -5,5 +5,6 @@ =20 #define PVPANIC_PANICKED (1 << 0) #define PVPANIC_CRASH_LOADED (1 << 1) +#define PVPANIC_SHUTDOWN (1 << 2) =20 #endif /* __PVPANIC_H__ */ --=20 2.42.0