From patchwork Wed Nov 26 09:05:13 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Blaschka X-Patchwork-Id: 415014 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 5BB1114017A for ; Wed, 26 Nov 2014 20:06:13 +1100 (AEDT) Received: from localhost ([::1]:60934 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XtYY6-0000LB-GP for incoming@patchwork.ozlabs.org; Wed, 26 Nov 2014 04:06:10 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59943) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XtYXT-00082c-Db for qemu-devel@nongnu.org; Wed, 26 Nov 2014 04:05:40 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XtYXK-00054R-Bq for qemu-devel@nongnu.org; Wed, 26 Nov 2014 04:05:31 -0500 Received: from e06smtp17.uk.ibm.com ([195.75.94.113]:60577) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XtYXK-00053w-2g for qemu-devel@nongnu.org; Wed, 26 Nov 2014 04:05:22 -0500 Received: from /spool/local by e06smtp17.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Wed, 26 Nov 2014 09:05:18 -0000 Received: from b06cxnps4075.portsmouth.uk.ibm.com (d06relay12.portsmouth.uk.ibm.com [9.149.109.197]) by d06dlp03.portsmouth.uk.ibm.com (Postfix) with ESMTP id 599E31B0805F for ; Wed, 26 Nov 2014 09:05:33 +0000 (GMT) Received: from d06av05.portsmouth.uk.ibm.com (d06av05.portsmouth.uk.ibm.com [9.149.37.229]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id sAQ95Ix3655704 for ; Wed, 26 Nov 2014 09:05:18 GMT Received: from d06av05.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av05.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id sAQ95HCU002438 for ; Wed, 26 Nov 2014 02:05:18 -0700 Received: from tuxmaker.boeblingen.de.ibm.com (tuxmaker.boeblingen.de.ibm.com [9.152.85.9]) by d06av05.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id sAQ95GEc002356; Wed, 26 Nov 2014 02:05:17 -0700 From: Frank Blaschka To: agraf@suse.de, cornelia.huck@de.ibm.com, borntraeger@de.ibm.com, pbonzini@redhat.com, qemu-devel@nongnu.org Date: Wed, 26 Nov 2014 10:05:13 +0100 Message-Id: <1416992713-64480-4-git-send-email-blaschka@linux.vnet.ibm.com> X-Mailer: git-send-email 1.8.5.5 In-Reply-To: <1416992713-64480-1-git-send-email-blaschka@linux.vnet.ibm.com> References: <1416992713-64480-1-git-send-email-blaschka@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14112609-0029-0000-0000-000001DF970B X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 195.75.94.113 Cc: peter.maydell@linaro.org, james.hogan@imgtec.com, mtosatti@redhat.com, Frank Blaschka , rth@twiddle.net Subject: [Qemu-devel] [PATCH 3/3 V1] kvm: extend kvm_irqchip_add_msi_route to work on s390 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Frank Blaschka on s390 MSI-X irqs are presented as thin or adapter interrupts for this we have to reorganize the routing entry to contain valid information for the adapter interrupt code on s390. To minimize impact on existing code we introduce an architecture function to fixup the routing entry. Signed-off-by: Frank Blaschka --- include/sysemu/kvm.h | 4 ++++ kvm-all.c | 7 +++++++ target-arm/kvm.c | 6 ++++++ target-i386/kvm.c | 6 ++++++ target-mips/kvm.c | 6 ++++++ target-ppc/kvm.c | 6 ++++++ target-s390x/kvm.c | 26 ++++++++++++++++++++++++++ 7 files changed, 61 insertions(+) diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h index b0cd657..702dc93 100644 --- a/include/sysemu/kvm.h +++ b/include/sysemu/kvm.h @@ -148,6 +148,7 @@ extern bool kvm_readonly_mem_allowed; struct kvm_run; struct kvm_lapic_state; +struct kvm_irq_routing_entry; typedef struct KVMCapabilityInfo { const char *name; @@ -259,6 +260,9 @@ int kvm_arch_on_sigbus(int code, void *addr); void kvm_arch_init_irq_routing(KVMState *s); +int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, + uint64_t address, uint32_t data); + int kvm_set_irq(KVMState *s, int irq, int level); int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg); diff --git a/kvm-all.c b/kvm-all.c index 596e7ce..38589b3 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -1208,6 +1208,10 @@ int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg) kroute.u.msi.address_lo = (uint32_t)msg.address; kroute.u.msi.address_hi = msg.address >> 32; kroute.u.msi.data = le32_to_cpu(msg.data); + if (kvm_arch_fixup_msi_route(&kroute, msg.address, msg.data)) { + kvm_irqchip_release_virq(s, virq); + return -EINVAL; + } kvm_add_routing_entry(s, &kroute); kvm_irqchip_commit_routes(s); @@ -1233,6 +1237,9 @@ int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg) kroute.u.msi.address_lo = (uint32_t)msg.address; kroute.u.msi.address_hi = msg.address >> 32; kroute.u.msi.data = le32_to_cpu(msg.data); + if (kvm_arch_fixup_msi_route(&kroute, msg.address, msg.data)) { + return -EINVAL; + } return kvm_update_routing_entry(s, &kroute); } diff --git a/target-arm/kvm.c b/target-arm/kvm.c index 319784d..3285f81 100644 --- a/target-arm/kvm.c +++ b/target-arm/kvm.c @@ -441,3 +441,9 @@ int kvm_arch_irqchip_create(KVMState *s) return 0; } + +int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, + uint64_t address, uint32_t data) +{ + return 0; +} diff --git a/target-i386/kvm.c b/target-i386/kvm.c index ccf36e8..7bc818c 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -2707,3 +2707,9 @@ int kvm_device_msix_deassign(KVMState *s, uint32_t dev_id) return kvm_deassign_irq_internal(s, dev_id, KVM_DEV_IRQ_GUEST_MSIX | KVM_DEV_IRQ_HOST_MSIX); } + +int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, + uint64_t address, uint32_t data) +{ + return 0; +} diff --git a/target-mips/kvm.c b/target-mips/kvm.c index 97fd51a..c7eb1dc 100644 --- a/target-mips/kvm.c +++ b/target-mips/kvm.c @@ -688,3 +688,9 @@ int kvm_arch_get_registers(CPUState *cs) return ret; } + +int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, + uint64_t address, uint32_t data) +{ + return 0; +} diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c index 6843fa0..04c83cd 100644 --- a/target-ppc/kvm.c +++ b/target-ppc/kvm.c @@ -2388,3 +2388,9 @@ out_close: error_out: return; } + +int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, + uint64_t address, uint32_t data) +{ + return 0; +} diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c index 1b62257..32af46b 100644 --- a/target-s390x/kvm.c +++ b/target-s390x/kvm.c @@ -41,6 +41,7 @@ #include "trace.h" #include "qapi-event.h" #include "hw/s390x/s390-pci-inst.h" +#include "hw/s390x/s390-pci-bus.h" /* #define DEBUG_KVM */ @@ -1510,3 +1511,28 @@ int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state) return ret; } + +int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, + uint64_t address, uint32_t data) +{ + S390PCIBusDevice *pbdev; + uint32_t fid = data >> ZPCI_MSI_VEC_BITS; + uint32_t vec = data & ZPCI_MSI_VEC_MASK; + + pbdev = s390_pci_find_dev_by_fid(fid); + if (!pbdev) { + DPRINTF("add_msi_route no dev\n"); + return -ENODEV; + } + + pbdev->routes.adapter.ind_offset = vec; + + route->type = KVM_IRQ_ROUTING_S390_ADAPTER; + route->flags = 0; + route->u.adapter.summary_addr = pbdev->routes.adapter.summary_addr; + route->u.adapter.ind_addr = pbdev->routes.adapter.ind_addr; + route->u.adapter.summary_offset = pbdev->routes.adapter.summary_offset; + route->u.adapter.ind_offset = pbdev->routes.adapter.ind_offset; + route->u.adapter.adapter_id = pbdev->routes.adapter.adapter_id; + return 0; +}