From nobody Wed May 7 11:44:44 2025 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; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1611919127; cv=none; d=zohomail.com; s=zohoarc; b=TeRZ84ghXD66fNIjVoFS+aGlgaBUAvajUFCZKQONxhk2xU/43NUNZ2tAlHGeBsiY93AgzZRaF3XtrUr36YKUAVvWuUuStp15VqKxjP+A+aJ7drVnv02qC20gyNFVas6ijrnYvNVWcBYpSSZaWCF3BUVbjDqZIo+iZCHhVsd8/iI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1611919127; h=Content-Transfer-Encoding:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=4xSrwZi/LBTckPDqAvRCIzHfsu5xqT3tP56Jtyc9pH4=; b=AEPymphzybkboDzzkWbaJMtbiErsH72GsWiSf6ICzMst/mrDfcrM/CX9kRvXenwInKJhGmXEQ24CpslFX98CI0czuo8az1pK2JWterVzZLpv/cRn596GIRL7UAkMD4lBQCmmy4yrwqqxNvGuNtKwIUwu0zd/HENBHv554MTzAbs= 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; dmarc=pass header.from=<peter.maydell@linaro.org> (p=none dis=none) header.from=<peter.maydell@linaro.org> Return-Path: <qemu-devel-bounces+importer=patchew.org@nongnu.org> Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1611919127238917.4878210031212; Fri, 29 Jan 2021 03:18:47 -0800 (PST) Received: from localhost ([::1]:35012 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from <qemu-devel-bounces+importer=patchew.org@nongnu.org>) id 1l5Rna-00045c-2Y for importer@patchew.org; Fri, 29 Jan 2021 06:18:46 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:59964) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <peter.maydell@linaro.org>) id 1l5RWH-0004um-BW for qemu-devel@nongnu.org; Fri, 29 Jan 2021 06:00:53 -0500 Received: from mail-wm1-x329.google.com ([2a00:1450:4864:20::329]:34318) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from <peter.maydell@linaro.org>) id 1l5RVz-00070W-3d for qemu-devel@nongnu.org; Fri, 29 Jan 2021 06:00:53 -0500 Received: by mail-wm1-x329.google.com with SMTP id o10so6795283wmc.1 for <qemu-devel@nongnu.org>; Fri, 29 Jan 2021 03:00:34 -0800 (PST) Received: from orth.archaic.org.uk (orth.archaic.org.uk. [81.2.115.148]) by smtp.gmail.com with ESMTPSA id w20sm9268761wmm.12.2021.01.29.03.00.32 for <qemu-devel@nongnu.org> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Jan 2021 03:00:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=4xSrwZi/LBTckPDqAvRCIzHfsu5xqT3tP56Jtyc9pH4=; b=MnhpmToQcf4DC70KBjralQqwDnb6WT8+bb3WjOXTpDGB7OkL5Q8WuhE+Q/BrFsab3L xuecy7DcjEWrQ/4OyZCBF7rLbqa7K/ow5vT3ox0vhV9AqSNvI7y+2Ue4+0inyKTXVgkw cd4doj6XAEAHoV/gVq03tf+RBtNYkAG2EraucScNHs2dgOrdC4NR85M1w8/G4VQXWval 99Z89P0W+4HimBnP0IVUtVX5jE9nJkld/tEA6w07D2X/Vx5wrEwV6UQSRizfGkP9Hje6 4LnUZZuBnFFr793VENiHlzoxUZsisZ3Tf4EsgrVb5UBs20y+NRoevf6Zpj3vHbD32u89 uQ1A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=4xSrwZi/LBTckPDqAvRCIzHfsu5xqT3tP56Jtyc9pH4=; b=qpOB09cy6IrQiFWRGmEPb0uV6h3Rd9s1OWQJgyZhghtC5JFQ7RA7MuSJeWDjTZaNig h3VDRJvCgY1pxr8OMx6GpsmztJmHXshMa7lHBU7+MlI5KQXZAo3V+e9tUIuGcqK3KobG 7eZLq2xP/ARQf4yCHgMaBaOJbJ1VvwDHJkhrERqaImgtY+lMDy+QSK2hEvy5/CTkY3io Kdd46z5FIqw8/PKUo7UbrHs7kNG9PDJOvXPLx/cSZqLp4Y0aliEwqR5pgo5Bi36wrn1d LJJbp7vXvhQVD7pUHdxWh/LhlOWaQ2eZ+enxXJnD9D9UkuSVeOif3FVMcWajaBDAPZLz Uq3w== X-Gm-Message-State: AOAM5326LW6m14HiPmX6KUKMPbXaYfXbMrfQz3oAmgNRt4QGQpNSxTx0 Cz7YatvcgqHnn97m8XYtpv6dO+IjTcnugQ== X-Google-Smtp-Source: ABdhPJyOCOK1QsLzbS7MpHSt6NqGNrOLWIujIbDq2SyZzFb+pyjeztuyJQnO7ny7+et3r2B8Qgj/Rg== X-Received: by 2002:a7b:ce17:: with SMTP id m23mr3231240wmc.178.1611918033365; Fri, 29 Jan 2021 03:00:33 -0800 (PST) From: Peter Maydell <peter.maydell@linaro.org> To: qemu-devel@nongnu.org Subject: [PULL 20/46] pvpanic : update pvpanic spec document Date: Fri, 29 Jan 2021 10:59:46 +0000 Message-Id: <20210129110012.8660-21-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210129110012.8660-1-peter.maydell@linaro.org> References: <20210129110012.8660-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=2a00:1450:4864:20::329; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x329.google.com 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+importer=patchew.org@nongnu.org> X-ZohoMail-DKIM: pass (identity @linaro.org) Content-Type: text/plain; charset="utf-8" From: Mihai Carabas <mihai.carabas@oracle.com> Add pvpanic PCI device support details in docs/specs/pvpanic.txt. Signed-off-by: Mihai Carabas <mihai.carabas@oracle.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- docs/specs/pvpanic.txt | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/docs/specs/pvpanic.txt b/docs/specs/pvpanic.txt index a90fbca72b7..8afcde11cc8 100644 --- a/docs/specs/pvpanic.txt +++ b/docs/specs/pvpanic.txt @@ -1,7 +1,7 @@ PVPANIC DEVICE =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =20 -pvpanic device is a simulated ISA device, through which a guest panic +pvpanic device is a simulated device, through which a guest panic event is sent to qemu, and a QMP event is generated. This allows management apps (e.g. libvirt) to be notified and respond to the event. =20 @@ -9,6 +9,9 @@ The management app has the option of waiting for GUEST_PANI= CKED events, and/or polling for guest-panicked RunState, to learn when the pvpanic device has fired a panic event. =20 +The pvpanic device can be implemented as an ISA device (using IOPORT) or a= s a +PCI device. + ISA Interface ------------- =20 @@ -24,6 +27,14 @@ 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. =20 +PCI Interface +------------- + +The PCI interface is similar to the ISA interface except that it uses an M= MIO +address space provided by its BAR0, 1 byte long. Any machine with a PCI bus +can enable a pvpanic device by adding '-device pvpanic-pci' to the command +line. + ACPI Interface -------------- =20 --=20 2.20.1