X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Fhw%2Fi386%2Fkvm%2Fpci-assign.c;h=bf425a2b9f1e50490fdf7b32a0cc584ab4cf3068;hb=a14b48d18a9ed03ec191cf16b162206998a895ce;hp=74d22f4fd2bc26382a292f93ac817a24d9a1757b;hpb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;p=kvmfornfv.git diff --git a/qemu/hw/i386/kvm/pci-assign.c b/qemu/hw/i386/kvm/pci-assign.c index 74d22f4fd..bf425a2b9 100644 --- a/qemu/hw/i386/kvm/pci-assign.c +++ b/qemu/hw/i386/kvm/pci-assign.c @@ -20,12 +20,9 @@ * Copyright (C) 2008, Red Hat, Amit Shah (amit.shah@redhat.com) * Copyright (C) 2008, IBM, Muli Ben-Yehuda (muli@il.ibm.com) */ -#include -#include -#include +#include "qemu/osdep.h" +#include "qapi/error.h" #include -#include -#include #include "hw/hw.h" #include "hw/i386/pc.h" #include "qemu/error-report.h" @@ -37,6 +34,7 @@ #include "hw/pci/pci.h" #include "hw/pci/msi.h" #include "kvm_i386.h" +#include "hw/pci/pci-assign.h" #define MSIX_PAGE_SIZE 0x1000 @@ -48,17 +46,6 @@ #define IORESOURCE_PREFETCH 0x00002000 /* No side effects */ #define IORESOURCE_MEM_64 0x00100000 -//#define DEVICE_ASSIGNMENT_DEBUG - -#ifdef DEVICE_ASSIGNMENT_DEBUG -#define DEBUG(fmt, ...) \ - do { \ - fprintf(stderr, "%s: " fmt, __func__ , __VA_ARGS__); \ - } while (0) -#else -#define DEBUG(fmt, ...) -#endif - typedef struct PCIRegion { int type; /* Memory or port I/O */ int valid; @@ -781,7 +768,7 @@ static char *assign_failed_examine(const AssignedDevice *dev) "*** $ echo \"%04x:%02x:%02x.%x\" > /sys/bus/pci/drivers/" "pci-stub/bind\n" "*** $ echo \"%04x %04x\" > /sys/bus/pci/drivers/pci-stub/remove_id\n" - "***", + "***\n", ns, dev->host.domain, dev->host.bus, dev->host.slot, dev->host.function, vendor_id, device_id, dev->host.domain, dev->host.bus, dev->host.slot, dev->host.function, @@ -789,7 +776,7 @@ static char *assign_failed_examine(const AssignedDevice *dev) dev->host.function, vendor_id, device_id); fail: - return g_strdup("Couldn't find out why."); + return g_strdup("Couldn't find out why.\n"); } static void assign_device(AssignedDevice *dev, Error **errp) @@ -823,8 +810,9 @@ static void assign_device(AssignedDevice *dev, Error **errp) char *cause; cause = assign_failed_examine(dev); - error_setg_errno(errp, -r, "Failed to assign device \"%s\"\n%s", - dev->dev.qdev.id, cause); + error_setg_errno(errp, -r, "Failed to assign device \"%s\"", + dev->dev.qdev.id); + error_append_hint(errp, "%s", cause); g_free(cause); break; } @@ -923,11 +911,10 @@ retry: dev->features |= ASSIGNED_DEVICE_PREFER_MSI_MASK; goto retry; } - error_setg_errno(errp, -r, - "Failed to assign irq for \"%s\"\n" - "Perhaps you are assigning a device " - "that shares an IRQ with another device?", + error_setg_errno(errp, -r, "Failed to assign irq for \"%s\"", dev->dev.qdev.id); + error_append_hint(errp, "Perhaps you are assigning a device " + "that shares an IRQ with another device?\n"); return r; } @@ -990,7 +977,7 @@ static void assigned_dev_update_msi(PCIDevice *pci_dev) MSIMessage msg = msi_get_message(pci_dev, 0); int virq; - virq = kvm_irqchip_add_msi_route(kvm_state, msg); + virq = kvm_irqchip_add_msi_route(kvm_state, msg, pci_dev); if (virq < 0) { perror("assigned_dev_update_msi: kvm_irqchip_add_msi_route"); return; @@ -1028,7 +1015,7 @@ static void assigned_dev_update_msi_msg(PCIDevice *pci_dev) } kvm_irqchip_update_msi_route(kvm_state, assigned_dev->msi_virq[0], - msi_get_message(pci_dev, 0)); + msi_get_message(pci_dev, 0), pci_dev); } static bool assigned_dev_msix_masked(MSIXTableEntry *entry) @@ -1094,7 +1081,7 @@ static int assigned_dev_update_msix_mmio(PCIDevice *pci_dev) msg.address = entry->addr_lo | ((uint64_t)entry->addr_hi << 32); msg.data = entry->data; - r = kvm_irqchip_add_msi_route(kvm_state, msg); + r = kvm_irqchip_add_msi_route(kvm_state, msg, pci_dev); if (r < 0) { return r; } @@ -1494,7 +1481,7 @@ static int assigned_device_pci_cap_init(PCIDevice *pci_dev, Error **errp) * error bits, leave the rest. */ status = pci_get_long(pci_dev->config + pos + PCI_X_STATUS); status &= ~(PCI_X_STATUS_BUS | PCI_X_STATUS_DEVFN); - status |= (pci_bus_num(pci_dev->bus) << 8) | pci_dev->devfn; + status |= pci_requester_id(pci_dev); status &= ~(PCI_X_STATUS_SPL_DISC | PCI_X_STATUS_UNX_SPL | PCI_X_STATUS_SPL_ERR); pci_set_long(pci_dev->config + pos + PCI_X_STATUS, status); @@ -1613,7 +1600,8 @@ static void assigned_dev_msix_mmio_write(void *opaque, hwaddr addr, msg.data = entry->data; ret = kvm_irqchip_update_msi_route(kvm_state, - adev->msi_virq[i], msg); + adev->msi_virq[i], msg, + pdev); if (ret) { error_report("Error updating irq routing entry (%d)", ret); } @@ -1896,73 +1884,15 @@ static void assign_register_types(void) type_init(assign_register_types) -/* - * Scan the assigned devices for the devices that have an option ROM, and then - * load the corresponding ROM data to RAM. If an error occurs while loading an - * option ROM, we just ignore that option ROM and continue with the next one. - */ static void assigned_dev_load_option_rom(AssignedDevice *dev) { - char name[32], rom_file[64]; - FILE *fp; - uint8_t val; - struct stat st; - void *ptr; - - /* If loading ROM from file, pci handles it */ - if (dev->dev.romfile || !dev->dev.rom_bar) { - return; - } + int size = 0; - snprintf(rom_file, sizeof(rom_file), - "/sys/bus/pci/devices/%04x:%02x:%02x.%01x/rom", - dev->host.domain, dev->host.bus, dev->host.slot, - dev->host.function); + pci_assign_dev_load_option_rom(&dev->dev, OBJECT(dev), &size, + dev->host.domain, dev->host.bus, + dev->host.slot, dev->host.function); - if (stat(rom_file, &st)) { - return; - } - - if (access(rom_file, F_OK)) { - error_report("pci-assign: Insufficient privileges for %s", rom_file); - return; - } - - /* Write "1" to the ROM file to enable it */ - fp = fopen(rom_file, "r+"); - if (fp == NULL) { - return; + if (!size) { + error_report("pci-assign: Invalid ROM."); } - val = 1; - if (fwrite(&val, 1, 1, fp) != 1) { - goto close_rom; - } - fseek(fp, 0, SEEK_SET); - - snprintf(name, sizeof(name), "%s.rom", - object_get_typename(OBJECT(dev))); - memory_region_init_ram(&dev->dev.rom, OBJECT(dev), name, st.st_size, - &error_abort); - vmstate_register_ram(&dev->dev.rom, &dev->dev.qdev); - ptr = memory_region_get_ram_ptr(&dev->dev.rom); - memset(ptr, 0xff, st.st_size); - - if (!fread(ptr, 1, st.st_size, fp)) { - error_report("pci-assign: Cannot read from host %s", rom_file); - error_printf("Device option ROM contents are probably invalid " - "(check dmesg).\nSkip option ROM probe with rombar=0, " - "or load from file with romfile=\n"); - goto close_rom; - } - - pci_register_bar(&dev->dev, PCI_ROM_SLOT, 0, &dev->dev.rom); - dev->dev.has_rom = true; -close_rom: - /* Write "0" to disable ROM */ - fseek(fp, 0, SEEK_SET); - val = 0; - if (!fwrite(&val, 1, 1, fp)) { - DEBUG("%s\n", "Failed to disable pci-sysfs rom file"); - } - fclose(fp); }