From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50568) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dGhRZ-00008f-Pm for qemu-devel@nongnu.org; Fri, 02 Jun 2017 03:56:27 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dGhRY-0001NS-0g for qemu-devel@nongnu.org; Fri, 02 Jun 2017 03:56:25 -0400 Received: from [59.151.112.132] (port=6328 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dGhRX-0001Jk-3Z for qemu-devel@nongnu.org; Fri, 02 Jun 2017 03:56:23 -0400 From: Mao Zhongyi Date: Fri, 2 Jun 2017 15:54:41 +0800 Message-ID: In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PATCH v2 5/6] pci: Make errp the last parameter of pci_add_capability() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: mst@redhat.com, pbonzini@redhat.com, rth@twiddle.net, ehabkost@redhat.com, dmitry@daynix.com, jasowang@redhat.com, marcel@redhat.com, alex.williamson@redhat.com, armbru@redhat.com Add Error argument for pci_add_capability() to leverage the errp to pass info on errors. This way is helpful for its callers to make a better error handling when moving to 'realize'. Cc: mst@redhat.com Cc: pbonzini@redhat.com Cc: rth@twiddle.net Cc: ehabkost@redhat.com Cc: dmitry@daynix.com Cc: jasowang@redhat.com Cc: marcel@redhat.com Cc: alex.williamson@redhat.com Cc: armbru@redhat.com Signed-off-by: Mao Zhongyi --- hw/i386/amd_iommu.c | 24 +++++++++++++++++------- hw/net/e1000e.c | 7 ++++++- hw/net/eepro100.c | 17 ++++++++++++----- hw/pci-bridge/i82801b11.c | 1 + hw/pci/pci.c | 10 ++++------ hw/pci/pci_bridge.c | 7 ++++++- hw/pci/pcie.c | 10 ++++++++-- hw/pci/shpc.c | 5 ++++- hw/pci/slotid_cap.c | 7 ++++++- hw/vfio/pci.c | 3 ++- hw/virtio/virtio-pci.c | 19 ++++++++++++++----- include/hw/pci/pci.h | 3 ++- 12 files changed, 82 insertions(+), 31 deletions(-) diff --git a/hw/i386/amd_iommu.c b/hw/i386/amd_iommu.c index 7b6d4ea..d93ffc2 100644 --- a/hw/i386/amd_iommu.c +++ b/hw/i386/amd_iommu.c @@ -1158,13 +1158,23 @@ static void amdvi_realize(DeviceState *dev, Error **err) x86_iommu->type = TYPE_AMD; qdev_set_parent_bus(DEVICE(&s->pci), &bus->qbus); object_property_set_bool(OBJECT(&s->pci), true, "realized", err); - s->capab_offset = pci_add_capability(&s->pci.dev, AMDVI_CAPAB_ID_SEC, 0, - AMDVI_CAPAB_SIZE); - assert(s->capab_offset > 0); - ret = pci_add_capability(&s->pci.dev, PCI_CAP_ID_MSI, 0, AMDVI_CAPAB_REG_SIZE); - assert(ret > 0); - ret = pci_add_capability(&s->pci.dev, PCI_CAP_ID_HT, 0, AMDVI_CAPAB_REG_SIZE); - assert(ret > 0); + ret = pci_add_capability(&s->pci.dev, AMDVI_CAPAB_ID_SEC, 0, + AMDVI_CAPAB_SIZE, err); + if (ret < 0) { + return; + } + s->capab_offset = ret; + + ret = pci_add_capability(&s->pci.dev, PCI_CAP_ID_MSI, 0, + AMDVI_CAPAB_REG_SIZE, err); + if (ret < 0) { + return; + } + ret = pci_add_capability(&s->pci.dev, PCI_CAP_ID_HT, 0, + AMDVI_CAPAB_REG_SIZE, err); + if (ret < 0) { + return; + } /* set up MMIO */ memory_region_init_io(&s->mmio, OBJECT(s), &mmio_mem_ops, s, "amdvi-mmio", diff --git a/hw/net/e1000e.c b/hw/net/e1000e.c index 8259d67..41430766 100644 --- a/hw/net/e1000e.c +++ b/hw/net/e1000e.c @@ -47,6 +47,7 @@ #include "e1000e_core.h" #include "trace.h" +#include "qapi/error.h" #define TYPE_E1000E "e1000e" #define E1000E(obj) OBJECT_CHECK(E1000EState, (obj), TYPE_E1000E) @@ -372,7 +373,9 @@ e1000e_gen_dsn(uint8_t *mac) static int e1000e_add_pm_capability(PCIDevice *pdev, uint8_t offset, uint16_t pmc) { - int ret = pci_add_capability(pdev, PCI_CAP_ID_PM, offset, PCI_PM_SIZEOF); + Error *local_err = NULL; + int ret = pci_add_capability(pdev, PCI_CAP_ID_PM, offset, + PCI_PM_SIZEOF, &local_err); if (ret > 0) { pci_set_word(pdev->config + offset + PCI_PM_PMC, @@ -386,6 +389,8 @@ e1000e_add_pm_capability(PCIDevice *pdev, uint8_t offset, uint16_t pmc) pci_set_word(pdev->w1cmask + offset + PCI_PM_CTRL, PCI_PM_CTRL_PME_STATUS); + } else { + error_report_err(local_err); } return ret; diff --git a/hw/net/eepro100.c b/hw/net/eepro100.c index 62e989c..f24046a 100644 --- a/hw/net/eepro100.c +++ b/hw/net/eepro100.c @@ -494,7 +494,7 @@ static void eepro100_fcp_interrupt(EEPRO100State *s) } #endif -static void e100_pci_reset(EEPRO100State *s) +static void e100_pci_reset(EEPRO100State *s, Error **errp) { E100PCIDeviceInfo *info = eepro100_get_class(s); uint32_t device = s->device; @@ -570,9 +570,13 @@ static void e100_pci_reset(EEPRO100State *s) /* Power Management Capabilities */ int cfg_offset = 0xdc; int r = pci_add_capability(&s->dev, PCI_CAP_ID_PM, - cfg_offset, PCI_PM_SIZEOF); - assert(r > 0); - pci_set_word(pci_conf + cfg_offset + PCI_PM_PMC, 0x7e21); + cfg_offset, PCI_PM_SIZEOF, + errp); + if (r > 0) { + pci_set_word(pci_conf + cfg_offset + PCI_PM_PMC, 0x7e21); + } else { + return; + } #if 0 /* TODO: replace dummy code for power management emulation. */ /* TODO: Power Management Control / Status. */ pci_set_word(pci_conf + cfg_offset + PCI_PM_CTRL, 0x0000); @@ -1863,7 +1867,10 @@ static void e100_nic_realize(PCIDevice *pci_dev, Error **errp) s->device = info->device; - e100_pci_reset(s); + e100_pci_reset(s, errp); + if (errp && *errp) { + return; + } /* Add 64 * 2 EEPROM. i82557 and i82558 support a 64 word EEPROM, * i82559 and later support 64 or 256 word EEPROM. */ diff --git a/hw/pci-bridge/i82801b11.c b/hw/pci-bridge/i82801b11.c index 2404e7e..2c065c3 100644 --- a/hw/pci-bridge/i82801b11.c +++ b/hw/pci-bridge/i82801b11.c @@ -44,6 +44,7 @@ #include "qemu/osdep.h" #include "hw/pci/pci.h" #include "hw/i386/ich9.h" +#include "qapi/error.h" /*****************************************************************************/ diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 9810d5f..1cfeeba 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -2264,15 +2264,13 @@ static void pci_del_option_rom(PCIDevice *pdev) * in pci config space */ int pci_add_capability(PCIDevice *pdev, uint8_t cap_id, - uint8_t offset, uint8_t size) + uint8_t offset, uint8_t size, + Error **errp) { int ret; - Error *local_err = NULL; - ret = pci_add_capability2(pdev, cap_id, offset, size, &local_err); - if (ret < 0) { - error_report_err(local_err); - } + ret = pci_add_capability2(pdev, cap_id, offset, size, errp); + return ret; } diff --git a/hw/pci/pci_bridge.c b/hw/pci/pci_bridge.c index 5118ef4..bb0f3a3 100644 --- a/hw/pci/pci_bridge.c +++ b/hw/pci/pci_bridge.c @@ -33,6 +33,7 @@ #include "hw/pci/pci_bridge.h" #include "hw/pci/pci_bus.h" #include "qemu/range.h" +#include "qapi/error.h" /* PCI bridge subsystem vendor ID helper functions */ #define PCI_SSVID_SIZEOF 8 @@ -43,8 +44,12 @@ int pci_bridge_ssvid_init(PCIDevice *dev, uint8_t offset, uint16_t svid, uint16_t ssid) { int pos; - pos = pci_add_capability(dev, PCI_CAP_ID_SSVID, offset, PCI_SSVID_SIZEOF); + Error *local_err = NULL; + + pos = pci_add_capability(dev, PCI_CAP_ID_SSVID, offset, + PCI_SSVID_SIZEOF, &local_err); if (pos < 0) { + error_report_err(local_err); return pos; } diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index 18e634f..f187512 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -91,11 +91,14 @@ int pcie_cap_init(PCIDevice *dev, uint8_t offset, uint8_t type, uint8_t port) /* PCIe cap v2 init */ int pos; uint8_t *exp_cap; + Error *local_err = NULL; assert(pci_is_express(dev)); - pos = pci_add_capability(dev, PCI_CAP_ID_EXP, offset, PCI_EXP_VER2_SIZEOF); + pos = pci_add_capability(dev, PCI_CAP_ID_EXP, offset, + PCI_EXP_VER2_SIZEOF, &local_err); if (pos < 0) { + error_report_err(local_err); return pos; } dev->exp.exp_cap = pos; @@ -123,11 +126,14 @@ int pcie_cap_v1_init(PCIDevice *dev, uint8_t offset, uint8_t type, { /* PCIe cap v1 init */ int pos; + Error *local_err = NULL; assert(pci_is_express(dev)); - pos = pci_add_capability(dev, PCI_CAP_ID_EXP, offset, PCI_EXP_VER1_SIZEOF); + pos = pci_add_capability(dev, PCI_CAP_ID_EXP, offset, + PCI_EXP_VER1_SIZEOF, &local_err); if (pos < 0) { + error_report_err(local_err); return pos; } dev->exp.exp_cap = pos; diff --git a/hw/pci/shpc.c b/hw/pci/shpc.c index 42fafac..d72d5e4 100644 --- a/hw/pci/shpc.c +++ b/hw/pci/shpc.c @@ -450,9 +450,12 @@ static int shpc_cap_add_config(PCIDevice *d) { uint8_t *config; int config_offset; + Error *local_err = NULL; config_offset = pci_add_capability(d, PCI_CAP_ID_SHPC, - 0, SHPC_CAP_LENGTH); + 0, SHPC_CAP_LENGTH, + &local_err); if (config_offset < 0) { + error_report_err(local_err); return config_offset; } config = d->config + config_offset; diff --git a/hw/pci/slotid_cap.c b/hw/pci/slotid_cap.c index aec1e91..bdca205 100644 --- a/hw/pci/slotid_cap.c +++ b/hw/pci/slotid_cap.c @@ -2,6 +2,7 @@ #include "hw/pci/slotid_cap.h" #include "hw/pci/pci.h" #include "qemu/error-report.h" +#include "qapi/error.h" #define SLOTID_CAP_LENGTH 4 #define SLOTID_NSLOTS_SHIFT ctz32(PCI_SID_ESR_NSLOTS) @@ -11,6 +12,8 @@ int slotid_cap_init(PCIDevice *d, int nslots, unsigned offset) { int cap; + Error *local_err = NULL; + if (!chassis) { error_report("Bridge chassis not specified. Each bridge is required " "to be assigned a unique chassis id > 0."); @@ -21,8 +24,10 @@ int slotid_cap_init(PCIDevice *d, int nslots, return -EINVAL; } - cap = pci_add_capability(d, PCI_CAP_ID_SLOTID, offset, SLOTID_CAP_LENGTH); + cap = pci_add_capability(d, PCI_CAP_ID_SLOTID, offset, + SLOTID_CAP_LENGTH, &local_err); if (cap < 0) { + error_report_err(local_err); return cap; } /* We make each chassis unique, this way each bridge is First in Chassis */ diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 5881968..85cfe38 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -1743,7 +1743,8 @@ static int vfio_setup_pcie_cap(VFIOPCIDevice *vdev, int pos, uint8_t size, PCI_EXP_LNKCAP_MLW | PCI_EXP_LNKCAP_SLS); } - pos = pci_add_capability(&vdev->pdev, PCI_CAP_ID_EXP, pos, size); + pos = pci_add_capability(&vdev->pdev, PCI_CAP_ID_EXP, pos, size, + errp); if (pos > 0) { vdev->pdev.exp.exp_cap = pos; } diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index f9b7244..cca5276 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1161,9 +1161,14 @@ static int virtio_pci_add_mem_cap(VirtIOPCIProxy *proxy, { PCIDevice *dev = &proxy->pci_dev; int offset; + Error *local_err = NULL; - offset = pci_add_capability(dev, PCI_CAP_ID_VNDR, 0, cap->cap_len); - assert(offset > 0); + offset = pci_add_capability(dev, PCI_CAP_ID_VNDR, 0, + cap->cap_len, &local_err); + if (offset < 0) { + error_report_err(local_err); + abort(); + } assert(cap->cap_len >= sizeof *cap); memcpy(dev->config + offset + PCI_CAP_FLAGS, &cap->cap_len, @@ -1810,9 +1815,13 @@ static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp) pos = pcie_endpoint_cap_init(pci_dev, 0); assert(pos > 0); - pos = pci_add_capability(pci_dev, PCI_CAP_ID_PM, 0, PCI_PM_SIZEOF); - assert(pos > 0); - pci_dev->exp.pm_cap = pos; + pos = pci_add_capability(pci_dev, PCI_CAP_ID_PM, 0, + PCI_PM_SIZEOF, errp); + if (pos > 0) { + pci_dev->exp.pm_cap = pos; + } else { + return; + } /* * Indicates that this function complies with revision 1.2 of the diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index a37a2d5..fe52aa8 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -356,7 +356,8 @@ void pci_unregister_vga(PCIDevice *pci_dev); pcibus_t pci_get_bar_addr(PCIDevice *pci_dev, int region_num); int pci_add_capability(PCIDevice *pdev, uint8_t cap_id, - uint8_t offset, uint8_t size); + uint8_t offset, uint8_t size, + Error **errp); int pci_add_capability2(PCIDevice *pdev, uint8_t cap_id, uint8_t offset, uint8_t size, Error **errp); -- 2.9.3