From nobody Tue Feb 10 00:23:18 2026 Delivered-To: importer@patchew.org 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; Authentication-Results: mx.zohomail.com; dkim=fail; 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=1576558482; cv=none; d=zohomail.com; s=zohoarc; b=i/6CRId+nzQOYrmZF+v0VzdXtmloy+kEj8RcJJuQ+ccL1vioonVoFgJQcbTCApo2IPZwxNDRnVKbQdUZQGYMBIX65lEzWHUOjn4kNk5Q1JVtMKZvOh0l9y6tdY/6v51qbInsB9OdtIt7cwHeikgfgiARgKrIAsk3ywm7Ykc91rc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1576558482; h=Content-Type:Content-Transfer-Encoding:Cc: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=Lztmur3VxSrgMT2To5a7oCnsqaG+eEbPBkXRbhvYW78=; b=GaiUAH1PBYqQ9tIr10OGGNFwjrELYnUm3VP6UAT9PnDRLKdJnL4+Ny5levdHMYl/XEUM3KFgorEQ0PuAL7MHfL6s2dKrTg7dDc3Z0ZXkO3LubX5j1lMO2HIdPI7SLYuF2TcSkPC0KSbBafP3eY6S76YhO3Maz2iIbRYpvbDLvtk= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; 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 1576558482206994.9775490468966; Mon, 16 Dec 2019 20:54:42 -0800 (PST) Received: from localhost ([::1]:35220 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ih4sb-0005Gm-07 for importer@patchew.org; Mon, 16 Dec 2019 23:54:41 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:33746) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ih4iI-0008KS-Jd for qemu-devel@nongnu.org; Mon, 16 Dec 2019 23:44:04 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ih4iG-0005c0-49 for qemu-devel@nongnu.org; Mon, 16 Dec 2019 23:44:02 -0500 Received: from ozlabs.org ([203.11.71.1]:58735) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ih4iB-0005Qq-Po; Mon, 16 Dec 2019 23:43:58 -0500 Received: by ozlabs.org (Postfix, from userid 1007) id 47cQWT2RXYz9sSn; Tue, 17 Dec 2019 15:43:31 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1576557813; bh=KLAeVuzvCddEVuCYat0RW1q80cGghwTWyDDGVAH29qY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VmK3lUkza3DspA78aXn9Ta/ILd68fp+MyZiH0l1hPGgQnjIfRZUOS8B6V3U1FxDlU +jGzoy0KSwsY9s17pm0NZ80XMwVJgNUxImfWTKWTKR9Ovpb8wkZosFEyuRAvU+TbwW CWC2FCY0i4fIEnhsGbtMUXFWbtrOhPGt2sJesYjg= From: David Gibson To: peter.maydell@linaro.org Subject: [PULL 28/88] ppc/xive: Implement the XivePresenter interface Date: Tue, 17 Dec 2019 15:42:22 +1100 Message-Id: <20191217044322.351838-29-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191217044322.351838-1-david@gibson.dropbear.id.au> References: <20191217044322.351838-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 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: 203.11.71.1 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: lvivier@redhat.com, aik@ozlabs.ru, qemu-devel@nongnu.org, groug@kaod.org, qemu-ppc@nongnu.org, clg@kaod.org, David Gibson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: C=C3=A9dric Le Goater Each XIVE Router model, sPAPR and PowerNV, now implements the 'match_nvt' handler of the XivePresenter QOM interface. This is simply moving code and taking into account the new API. To be noted that the xive_router_get_tctx() helper is not used anymore when doing CAM matching and will be removed later on after other changes. The XIVE presenter model is still too simple for the PowerNV machine and the CAM matching algo is not correct on multichip system. Subsequent patches will introduce more changes to scan all chips of the system. Signed-off-by: C=C3=A9dric Le Goater Reviewed-by: Greg Kurz Signed-off-by: C=C3=A9dric Le Goater Message-Id: <20191125065820.927-3-clg@kaod.org> Signed-off-by: David Gibson --- hw/intc/pnv_xive.c | 41 +++++++++++++++++++++++++++++++++++ hw/intc/spapr_xive.c | 49 ++++++++++++++++++++++++++++++++++++++++++ hw/intc/xive.c | 51 ++++++-------------------------------------- 3 files changed, 97 insertions(+), 44 deletions(-) diff --git a/hw/intc/pnv_xive.c b/hw/intc/pnv_xive.c index 9a771f6407..8055de89cf 100644 --- a/hw/intc/pnv_xive.c +++ b/hw/intc/pnv_xive.c @@ -372,6 +372,45 @@ static int pnv_xive_get_eas(XiveRouter *xrtr, uint8_t = blk, uint32_t idx, return pnv_xive_vst_read(xive, VST_TSEL_IVT, blk, idx, eas); } =20 +static int pnv_xive_match_nvt(XivePresenter *xptr, uint8_t format, + uint8_t nvt_blk, uint32_t nvt_idx, + bool cam_ignore, uint8_t priority, + uint32_t logic_serv, XiveTCTXMatch *match) +{ + CPUState *cs; + int count =3D 0; + + CPU_FOREACH(cs) { + PowerPCCPU *cpu =3D POWERPC_CPU(cs); + XiveTCTX *tctx =3D XIVE_TCTX(pnv_cpu_state(cpu)->intc); + int ring; + + /* + * Check the thread context CAM lines and record matches. + */ + ring =3D xive_presenter_tctx_match(xptr, tctx, format, nvt_blk, nv= t_idx, + cam_ignore, logic_serv); + /* + * Save the context and follow on to catch duplicates, that we + * don't support yet. + */ + if (ring !=3D -1) { + if (match->tctx) { + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: already found a " + "thread context NVT %x/%x\n", + nvt_blk, nvt_idx); + return -1; + } + + match->ring =3D ring; + match->tctx =3D tctx; + count++; + } + } + + return count; +} + static XiveTCTX *pnv_xive_get_tctx(XiveRouter *xrtr, CPUState *cs) { PowerPCCPU *cpu =3D POWERPC_CPU(cs); @@ -1780,6 +1819,7 @@ static void pnv_xive_class_init(ObjectClass *klass, v= oid *data) PnvXScomInterfaceClass *xdc =3D PNV_XSCOM_INTERFACE_CLASS(klass); XiveRouterClass *xrc =3D XIVE_ROUTER_CLASS(klass); XiveNotifierClass *xnc =3D XIVE_NOTIFIER_CLASS(klass); + XivePresenterClass *xpc =3D XIVE_PRESENTER_CLASS(klass); =20 xdc->dt_xscom =3D pnv_xive_dt_xscom; =20 @@ -1795,6 +1835,7 @@ static void pnv_xive_class_init(ObjectClass *klass, v= oid *data) xrc->get_tctx =3D pnv_xive_get_tctx; =20 xnc->notify =3D pnv_xive_notify; + xpc->match_nvt =3D pnv_xive_match_nvt; }; =20 static const TypeInfo pnv_xive_info =3D { diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c index 729246e906..bb3b2dfdb7 100644 --- a/hw/intc/spapr_xive.c +++ b/hw/intc/spapr_xive.c @@ -405,6 +405,52 @@ static XiveTCTX *spapr_xive_get_tctx(XiveRouter *xrtr,= CPUState *cs) return spapr_cpu_state(cpu)->tctx; } =20 +static int spapr_xive_match_nvt(XivePresenter *xptr, uint8_t format, + uint8_t nvt_blk, uint32_t nvt_idx, + bool cam_ignore, uint8_t priority, + uint32_t logic_serv, XiveTCTXMatch *match) +{ + CPUState *cs; + int count =3D 0; + + CPU_FOREACH(cs) { + PowerPCCPU *cpu =3D POWERPC_CPU(cs); + XiveTCTX *tctx =3D spapr_cpu_state(cpu)->tctx; + int ring; + + /* + * Skip partially initialized vCPUs. This can happen when + * vCPUs are hotplugged. + */ + if (!tctx) { + continue; + } + + /* + * Check the thread context CAM lines and record matches. + */ + ring =3D xive_presenter_tctx_match(xptr, tctx, format, nvt_blk, nv= t_idx, + cam_ignore, logic_serv); + /* + * Save the matching thread interrupt context and follow on to + * check for duplicates which are invalid. + */ + if (ring !=3D -1) { + if (match->tctx) { + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: already found a thre= ad " + "context NVT %x/%x\n", nvt_blk, nvt_idx); + return -1; + } + + match->ring =3D ring; + match->tctx =3D tctx; + count++; + } + } + + return count; +} + static const VMStateDescription vmstate_spapr_xive_end =3D { .name =3D TYPE_SPAPR_XIVE "/end", .version_id =3D 1, @@ -684,6 +730,7 @@ static void spapr_xive_class_init(ObjectClass *klass, v= oid *data) DeviceClass *dc =3D DEVICE_CLASS(klass); XiveRouterClass *xrc =3D XIVE_ROUTER_CLASS(klass); SpaprInterruptControllerClass *sicc =3D SPAPR_INTC_CLASS(klass); + XivePresenterClass *xpc =3D XIVE_PRESENTER_CLASS(klass); =20 dc->desc =3D "sPAPR XIVE Interrupt Controller"; dc->props =3D spapr_xive_properties; @@ -708,6 +755,8 @@ static void spapr_xive_class_init(ObjectClass *klass, v= oid *data) sicc->print_info =3D spapr_xive_print_info; sicc->dt =3D spapr_xive_dt; sicc->post_load =3D spapr_xive_post_load; + + xpc->match_nvt =3D spapr_xive_match_nvt; } =20 static const TypeInfo spapr_xive_info =3D { diff --git a/hw/intc/xive.c b/hw/intc/xive.c index 344bb3f3bc..da6196ca95 100644 --- a/hw/intc/xive.c +++ b/hw/intc/xive.c @@ -1428,51 +1428,14 @@ static bool xive_presenter_match(XiveRouter *xrtr, = uint8_t format, bool cam_ignore, uint8_t priority, uint32_t logic_serv, XiveTCTXMatch *match) { - CPUState *cs; + XivePresenter *xptr =3D XIVE_PRESENTER(xrtr); + XivePresenterClass *xpc =3D XIVE_PRESENTER_GET_CLASS(xptr); + int count; =20 - /* - * TODO (PowerNV): handle chip_id overwrite of block field for - * hardwired CAM compares - */ - - CPU_FOREACH(cs) { - XiveTCTX *tctx =3D xive_router_get_tctx(xrtr, cs); - int ring; - - /* - * Skip partially initialized vCPUs. This can happen when - * vCPUs are hotplugged. - */ - if (!tctx) { - continue; - } - - /* - * HW checks that the CPU is enabled in the Physical Thread - * Enable Register (PTER). - */ - - /* - * Check the thread context CAM lines and record matches. We - * will handle CPU exception delivery later - */ - ring =3D xive_presenter_tctx_match(XIVE_PRESENTER(xrtr), tctx, for= mat, - nvt_blk, nvt_idx, - cam_ignore, logic_serv); - /* - * Save the context and follow on to catch duplicates, that we - * don't support yet. - */ - if (ring !=3D -1) { - if (match->tctx) { - qemu_log_mask(LOG_GUEST_ERROR, "XIVE: already found a thre= ad " - "context NVT %x/%x\n", nvt_blk, nvt_idx); - return false; - } - - match->ring =3D ring; - match->tctx =3D tctx; - } + count =3D xpc->match_nvt(xptr, format, nvt_blk, nvt_idx, cam_ignore, + priority, logic_serv, match); + if (count < 0) { + return false; } =20 if (!match->tctx) { --=20 2.23.0