From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92C3FC5B576 for ; Sun, 30 Jun 2019 20:51:24 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 6A0A92089F for ; Sun, 30 Jun 2019 20:51:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6A0A92089F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kaod.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:46480 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hhgnD-0005Gl-Nt for qemu-devel@archiver.kernel.org; Sun, 30 Jun 2019 16:51:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35935) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hhgiW-0008FZ-Ev for qemu-devel@nongnu.org; Sun, 30 Jun 2019 16:46:33 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hhgiV-0001wg-9q for qemu-devel@nongnu.org; Sun, 30 Jun 2019 16:46:32 -0400 Received: from 3.mo4.mail-out.ovh.net ([46.105.57.129]:32912) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hhgiU-0001v0-Sz for qemu-devel@nongnu.org; Sun, 30 Jun 2019 16:46:31 -0400 Received: from player157.ha.ovh.net (unknown [10.109.159.20]) by mo4.mail-out.ovh.net (Postfix) with ESMTP id BA2521F985C for ; Sun, 30 Jun 2019 22:46:28 +0200 (CEST) Received: from kaod.org (lfbn-1-2240-157.w90-76.abo.wanadoo.fr [90.76.60.157]) (Authenticated sender: clg@kaod.org) by player157.ha.ovh.net (Postfix) with ESMTPSA id 653587575A3A; Sun, 30 Jun 2019 20:46:21 +0000 (UTC) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: David Gibson Date: Sun, 30 Jun 2019 22:45:53 +0200 Message-Id: <20190630204601.30574-3-clg@kaod.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190630204601.30574-1-clg@kaod.org> References: <20190630204601.30574-1-clg@kaod.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Ovh-Tracer-Id: 2279947311805008870 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgeduvddrvdeggdduheegucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdpvefjgfevmfevgfenuceurghilhhouhhtmecuhedttdenucesvcftvggtihhpihgvnhhtshculddquddttddm Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 46.105.57.129 Subject: [Qemu-devel] [PATCH 02/10] ppc/xive: Make the PIPR register readonly X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , qemu-ppc@nongnu.org, Greg Kurz , Suraj Jitindar Singh , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" When the hypervisor (KVM) dispatches a vCPU on a HW thread, it restores its thread interrupt context. The Pending Interrupt Priority Register (PIPR) is computed from the Interrupt Pending Buffer (IPB) and stores should not be allowed to change its value. Fixes: 207d9fe98510 ("ppc/xive: introduce the XIVE interrupt thread conte= xt") Signed-off-by: C=C3=A9dric Le Goater --- hw/intc/xive.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/hw/intc/xive.c b/hw/intc/xive.c index 3b1f9520ae9f..534f56f86bd5 100644 --- a/hw/intc/xive.c +++ b/hw/intc/xive.c @@ -182,31 +182,31 @@ static uint64_t xive_tm_vt_poll(XiveTCTX *tctx, hwa= ddr offset, unsigned size) */ =20 static const uint8_t xive_tm_hw_view[] =3D { - /* QW-0 User */ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0,= 0, - /* QW-1 OS */ 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 3, 3, 0, 0, 0,= 0, - /* QW-2 POOL */ 0, 0, 3, 3, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0,= 0, - /* QW-3 PHYS */ 3, 3, 3, 3, 0, 3, 0, 3, 3, 0, 0, 3, 3, 3, 3,= 0, + 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-0 User *= / + 3, 3, 3, 3, 3, 3, 0, 2, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-1 OS *= / + 0, 0, 3, 3, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-2 POOL *= / + 3, 3, 3, 3, 0, 3, 0, 2, 3, 0, 0, 3, 3, 3, 3, 0, /* QW-3 PHYS *= / }; =20 static const uint8_t xive_tm_hv_view[] =3D { - /* QW-0 User */ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0,= 0, - /* QW-1 OS */ 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 3, 3, 0, 0, 0,= 0, - /* QW-2 POOL */ 0, 0, 3, 3, 0, 0, 0, 0, 0, 3, 3, 3, 0, 0, 0,= 0, - /* QW-3 PHYS */ 3, 3, 3, 3, 0, 3, 0, 3, 3, 0, 0, 3, 0, 0, 0,= 0, + 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-0 User *= / + 3, 3, 3, 3, 3, 3, 0, 2, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-1 OS *= / + 0, 0, 3, 3, 0, 0, 0, 0, 0, 3, 3, 3, 0, 0, 0, 0, /* QW-2 POOL *= / + 3, 3, 3, 3, 0, 3, 0, 2, 3, 0, 0, 3, 0, 0, 0, 0, /* QW-3 PHYS *= / }; =20 static const uint8_t xive_tm_os_view[] =3D { - /* QW-0 User */ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0,= 0, - /* QW-1 OS */ 2, 3, 2, 2, 2, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0,= 0, - /* QW-2 POOL */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,= 0, - /* QW-3 PHYS */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,= 0, + 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-0 User *= / + 2, 3, 2, 2, 2, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-1 OS *= / + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-2 POOL *= / + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-3 PHYS *= / }; =20 static const uint8_t xive_tm_user_view[] =3D { - /* QW-0 User */ 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,= 0, - /* QW-1 OS */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,= 0, - /* QW-2 POOL */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,= 0, - /* QW-3 PHYS */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,= 0, + 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-0 User *= / + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-1 OS *= / + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-2 POOL *= / + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-3 PHYS *= / }; =20 /* --=20 2.21.0