From patchwork Fri Sep 1 04:22:56 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Min Zhao X-Patchwork-Id: 808525 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 3xk5kd5yzcz9s0g for ; Fri, 1 Sep 2017 14:25:13 +1000 (AEST) Received: from localhost ([::1]:45113 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dndW3-0004iv-RK for incoming@patchwork.ozlabs.org; Fri, 01 Sep 2017 00:25:11 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34973) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dndVU-0004hZ-Ev for qemu-devel@nongnu.org; Fri, 01 Sep 2017 00:24:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dndVQ-00029h-GC for qemu-devel@nongnu.org; Fri, 01 Sep 2017 00:24:36 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:41792) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dndVQ-00029F-82 for qemu-devel@nongnu.org; Fri, 01 Sep 2017 00:24:32 -0400 Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v814NpZL099972 for ; Fri, 1 Sep 2017 00:24:30 -0400 Received: from e23smtp06.au.ibm.com (e23smtp06.au.ibm.com [202.81.31.148]) by mx0a-001b2d01.pphosted.com with ESMTP id 2cpx0a0uhu-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Fri, 01 Sep 2017 00:24:30 -0400 Received: from localhost by e23smtp06.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Fri, 1 Sep 2017 14:24:25 +1000 Received: from d23av06.au.ibm.com (d23av06.au.ibm.com [9.190.235.151]) by d23relay10.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v814NAAk33816618 for ; Fri, 1 Sep 2017 14:23:10 +1000 Received: from d23av06.au.ibm.com (localhost [127.0.0.1]) by d23av06.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v814N9eZ001188 for ; Fri, 1 Sep 2017 14:23:10 +1000 Received: from r35lp25.boeblingen.de.ibm.com (r35lp25.boeblingen.de.ibm.com [9.152.111.25]) by d23av06.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id v814N2UC001078; Fri, 1 Sep 2017 14:23:06 +1000 From: Yi Min Zhao To: qemu-devel@nongnu.org Date: Fri, 1 Sep 2017 06:22:56 +0200 X-Mailer: git-send-email 2.3.0 In-Reply-To: <1504239778-29893-1-git-send-email-zyimin@linux.vnet.ibm.com> References: <1504239778-29893-1-git-send-email-zyimin@linux.vnet.ibm.com> X-TM-AS-MML: disable x-cbid: 17090104-0040-0000-0000-000003525892 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17090104-0041-0000-0000-00000CD06048 Message-Id: <1504239778-29893-2-git-send-email-zyimin@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-08-31_09:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000 definitions=main-1709010064 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH v2 1/3] s390x/pci: remove idx from msix msg data 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: pasic@linux.vnet.ibm.com, zyimin@linux.vnet.ibm.com, richard.henderson@linaro.org, cohuck@redhat.com, pmorel@linux.vnet.ibm.com, agraf@suse.de, borntraeger@de.ibm.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" PCIDevice pointer has been a parameter of kvm_arch_fixup_msi_route(). So we don't need to store zpci idx in msix message data to find out the specific zpci device. Instead, we could use pci device id to find its corresponding zpci device. Signed-off-by: Yi Min Zhao --- hw/s390x/s390-pci-bus.c | 16 +++++----------- hw/s390x/s390-pci-bus.h | 2 ++ hw/s390x/s390-pci-inst.c | 24 ------------------------ hw/s390x/s390-pci-stub.c | 6 ++++++ target/s390x/kvm.c | 7 +++++-- 5 files changed, 18 insertions(+), 37 deletions(-) diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index 0a31a4ae88..bd8a3e1e1c 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -199,8 +199,8 @@ static S390PCIBusDevice *s390_pci_find_dev_by_uid(S390pciState *s, uint16_t uid) return NULL; } -static S390PCIBusDevice *s390_pci_find_dev_by_target(S390pciState *s, - const char *target) +S390PCIBusDevice *s390_pci_find_dev_by_target(S390pciState *s, + const char *target) { S390PCIBusDevice *pbdev; @@ -465,19 +465,13 @@ static void s390_msi_ctrl_write(void *opaque, hwaddr addr, uint64_t data, unsigned int size) { S390PCIBusDevice *pbdev = opaque; - uint32_t idx = data >> ZPCI_MSI_VEC_BITS; uint32_t vec = data & ZPCI_MSI_VEC_MASK; uint64_t ind_bit; uint32_t sum_bit; - uint32_t e = 0; - DPRINTF("write_msix data 0x%" PRIx64 " idx %d vec 0x%x\n", data, idx, vec); - - if (!pbdev) { - e |= (vec << ERR_EVENT_MVN_OFFSET); - s390_pci_generate_error_event(ERR_EVENT_NOMSI, idx, 0, addr, e); - return; - } + assert(pbdev); + DPRINTF("write_msix data 0x%" PRIx64 " idx %d vec 0x%x\n", data, + pbdev->idx, vec); if (pbdev->state != ZPCI_FS_ENABLED) { return; diff --git a/hw/s390x/s390-pci-bus.h b/hw/s390x/s390-pci-bus.h index bd636abc28..560bd82a0f 100644 --- a/hw/s390x/s390-pci-bus.h +++ b/hw/s390x/s390-pci-bus.h @@ -322,6 +322,8 @@ void s390_pci_generate_error_event(uint16_t pec, uint32_t fh, uint32_t fid, S390PCIBusDevice *s390_pci_find_dev_by_idx(S390pciState *s, uint32_t idx); S390PCIBusDevice *s390_pci_find_dev_by_fh(S390pciState *s, uint32_t fh); S390PCIBusDevice *s390_pci_find_dev_by_fid(S390pciState *s, uint32_t fid); +S390PCIBusDevice *s390_pci_find_dev_by_target(S390pciState *s, + const char *target); S390PCIBusDevice *s390_pci_find_next_avail_dev(S390pciState *s, S390PCIBusDevice *pbdev); diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c index eba9ffb5f2..8e088f3dc9 100644 --- a/hw/s390x/s390-pci-inst.c +++ b/hw/s390x/s390-pci-inst.c @@ -413,29 +413,6 @@ int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2) return 0; } -static void update_msix_table_msg_data(S390PCIBusDevice *pbdev, uint64_t offset, - uint64_t *data, uint8_t len) -{ - uint32_t val; - uint8_t *msg_data; - - if (offset % PCI_MSIX_ENTRY_SIZE != 8) { - return; - } - - if (len != 4) { - DPRINTF("access msix table msg data but len is %d\n", len); - return; - } - - msg_data = (uint8_t *)data - offset % PCI_MSIX_ENTRY_SIZE + - PCI_MSIX_ENTRY_VECTOR_CTRL; - val = pci_get_long(msg_data) | - ((pbdev->fh & FH_MASK_INDEX) << ZPCI_MSI_VEC_BITS); - pci_set_long(msg_data, val); - DPRINTF("update msix msg_data to 0x%" PRIx64 "\n", *data); -} - static int trap_msix(S390PCIBusDevice *pbdev, uint64_t offset, uint8_t pcias) { if (pbdev->msix.available && pbdev->msix.table_bar == pcias && @@ -508,7 +485,6 @@ int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2) if (trap_msix(pbdev, offset, pcias)) { offset = offset - pbdev->msix.table_offset; mr = &pbdev->pdev->msix_table_mmio; - update_msix_table_msg_data(pbdev, offset, &data, len); } else { mr = pbdev->pdev->io_regions[pcias].memory; } diff --git a/hw/s390x/s390-pci-stub.c b/hw/s390x/s390-pci-stub.c index 7a642d376c..e501e1b9ea 100644 --- a/hw/s390x/s390-pci-stub.c +++ b/hw/s390x/s390-pci-stub.c @@ -74,3 +74,9 @@ S390PCIBusDevice *s390_pci_find_dev_by_idx(S390pciState *s, uint32_t idx) { return NULL; } + +S390PCIBusDevice *s390_pci_find_dev_by_target(S390pciState *s, + const char *target) +{ + return NULL; +} diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c index 1338c29528..3d490c5e4b 100644 --- a/target/s390x/kvm.c +++ b/target/s390x/kvm.c @@ -2533,10 +2533,13 @@ int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, uint64_t address, uint32_t data, PCIDevice *dev) { S390PCIBusDevice *pbdev; - uint32_t idx = data >> ZPCI_MSI_VEC_BITS; uint32_t vec = data & ZPCI_MSI_VEC_MASK; - pbdev = s390_pci_find_dev_by_idx(s390_get_phb(), idx); + if (!dev) { + return -ENODEV; + } + + pbdev = s390_pci_find_dev_by_target(s390_get_phb(), DEVICE(dev)->id); if (!pbdev) { DPRINTF("add_msi_route no dev\n"); return -ENODEV;