From nobody Wed Feb 11 05:59:56 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1532960313815813.7969720300051; Mon, 30 Jul 2018 07:18:33 -0700 (PDT) Received: from localhost ([::1]:52875 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fk90K-0000yq-OB for importer@patchew.org; Mon, 30 Jul 2018 10:18:32 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56740) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fk8uC-0004zl-JR for qemu-devel@nongnu.org; Mon, 30 Jul 2018 10:12:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fk8u7-0005fE-Py for qemu-devel@nongnu.org; Mon, 30 Jul 2018 10:12:12 -0400 Received: from 7.mo7.mail-out.ovh.net ([46.105.43.131]:57326) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fk8u7-0005e3-HY for qemu-devel@nongnu.org; Mon, 30 Jul 2018 10:12:07 -0400 Received: from player787.ha.ovh.net (unknown [10.109.146.5]) by mo7.mail-out.ovh.net (Postfix) with ESMTP id 1C028B97F3 for ; Mon, 30 Jul 2018 16:12:05 +0200 (CEST) Received: from zorba.kaod.org.com (bad36-1-78-202-132-1.fbx.proxad.net [78.202.132.1]) (Authenticated sender: clg@kaod.org) by player787.ha.ovh.net (Postfix) with ESMTPSA id C73F76000A4; Mon, 30 Jul 2018 16:11:59 +0200 (CEST) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: David Gibson Date: Mon, 30 Jul 2018 16:11:34 +0200 Message-Id: <20180730141134.31153-5-clg@kaod.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180730141134.31153-1-clg@kaod.org> References: <20180730141134.31153-1-clg@kaod.org> MIME-Version: 1.0 X-Ovh-Tracer-Id: 2068278129260923878 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedtiedrkeejgdejudcutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 46.105.43.131 Subject: [Qemu-devel] [PATCH v6 4/4] spapr: increase the size of the IRQ number space X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 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, qemu-devel@nongnu.org, Greg Kurz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" The new layout using static IRQ number does not leave much space to the dynamic MSI range, only 0x100 IRQ numbers. Increase the total number of IRQS for newer machines and introduce a legacy XICS backend for pre-3.1 machines to maintain compatibility. Signed-off-by: C=C3=A9dric Le Goater --- include/hw/ppc/spapr_irq.h | 1 + hw/ppc/spapr.c | 1 + hw/ppc/spapr_irq.c | 12 +++++++++++- 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h index 0e98c4474bb2..626160ba475e 100644 --- a/include/hw/ppc/spapr_irq.h +++ b/include/hw/ppc/spapr_irq.h @@ -40,6 +40,7 @@ typedef struct sPAPRIrq { } sPAPRIrq; =20 extern sPAPRIrq spapr_irq_xics; +extern sPAPRIrq spapr_irq_xics_legacy; =20 int spapr_irq_claim(sPAPRMachineState *spapr, int irq, bool lsi, Error **e= rrp); void spapr_irq_free(sPAPRMachineState *spapr, int irq, int num); diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index d9f8cca49208..5ae62b0682d2 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -3947,6 +3947,7 @@ static void spapr_machine_3_0_class_options(MachineCl= ass *mc) SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_3_0); =20 smc->legacy_irq_allocation =3D true; + smc->irq =3D &spapr_irq_xics_legacy; } =20 DEFINE_SPAPR_MACHINE(3_0, "3.0", false); diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c index 0cbb5dd39368..620c49b38455 100644 --- a/hw/ppc/spapr_irq.c +++ b/hw/ppc/spapr_irq.c @@ -196,7 +196,7 @@ static void spapr_irq_print_info_xics(sPAPRMachineState= *spapr, Monitor *mon) } =20 sPAPRIrq spapr_irq_xics =3D { - .nr_irqs =3D XICS_IRQS_SPAPR, + .nr_irqs =3D 0x1000, =20 .init =3D spapr_irq_init_xics, .claim =3D spapr_irq_claim_xics, @@ -284,3 +284,13 @@ int spapr_irq_find(sPAPRMachineState *spapr, int num, = bool align, Error **errp) =20 return first + ics->offset; } + +sPAPRIrq spapr_irq_xics_legacy =3D { + .nr_irqs =3D XICS_IRQS_SPAPR, + + .init =3D spapr_irq_init_xics, + .claim =3D spapr_irq_claim_xics, + .free =3D spapr_irq_free_xics, + .qirq =3D spapr_qirq_xics, + .print_info =3D spapr_irq_print_info_xics, +}; --=20 2.17.1