diff options
| -rw-r--r-- | hw/pci/pci.c | 79 |
1 files changed, 46 insertions, 33 deletions
diff --git a/hw/pci/pci.c b/hw/pci/pci.c index bf38905b7d..e2eb4c3b4a 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -36,6 +36,7 @@ #include "migration/vmstate.h" #include "net/net.h" #include "sysemu/numa.h" +#include "sysemu/runstate.h" #include "sysemu/sysemu.h" #include "hw/loader.h" #include "qemu/error-report.h" @@ -2308,12 +2309,18 @@ static void pci_patch_ids(PCIDevice *pdev, uint8_t *ptr, uint32_t size) static void pci_add_option_rom(PCIDevice *pdev, bool is_default_rom, Error **errp) { - int64_t size; + int64_t size = 0; g_autofree char *path = NULL; - void *ptr; char name[32]; const VMStateDescription *vmsd; + /* + * In case of incoming migration ROM will come with migration stream, no + * reason to load the file. Neither we want to fail if local ROM file + * mismatches with specified romsize. + */ + bool load_file = !runstate_check(RUN_STATE_INMIGRATE); + if (!pdev->romfile || !strlen(pdev->romfile)) { return; } @@ -2343,32 +2350,35 @@ static void pci_add_option_rom(PCIDevice *pdev, bool is_default_rom, return; } - path = qemu_find_file(QEMU_FILE_TYPE_BIOS, pdev->romfile); - if (path == NULL) { - path = g_strdup(pdev->romfile); - } + if (load_file || pdev->romsize == -1) { + path = qemu_find_file(QEMU_FILE_TYPE_BIOS, pdev->romfile); + if (path == NULL) { + path = g_strdup(pdev->romfile); + } - size = get_image_size(path); - if (size < 0) { - error_setg(errp, "failed to find romfile \"%s\"", pdev->romfile); - return; - } else if (size == 0) { - error_setg(errp, "romfile \"%s\" is empty", pdev->romfile); - return; - } else if (size > 2 * GiB) { - error_setg(errp, "romfile \"%s\" too large (size cannot exceed 2 GiB)", - pdev->romfile); - return; - } - if (pdev->romsize != -1) { - if (size > pdev->romsize) { - error_setg(errp, "romfile \"%s\" (%u bytes) " - "is too large for ROM size %u", - pdev->romfile, (uint32_t)size, pdev->romsize); + size = get_image_size(path); + if (size < 0) { + error_setg(errp, "failed to find romfile \"%s\"", pdev->romfile); + return; + } else if (size == 0) { + error_setg(errp, "romfile \"%s\" is empty", pdev->romfile); + return; + } else if (size > 2 * GiB) { + error_setg(errp, + "romfile \"%s\" too large (size cannot exceed 2 GiB)", + pdev->romfile); return; } - } else { - pdev->romsize = pow2ceil(size); + if (pdev->romsize != -1) { + if (size > pdev->romsize) { + error_setg(errp, "romfile \"%s\" (%u bytes) " + "is too large for ROM size %u", + pdev->romfile, (uint32_t)size, pdev->romsize); + return; + } + } else { + pdev->romsize = pow2ceil(size); + } } vmsd = qdev_get_vmsd(DEVICE(pdev)); @@ -2379,15 +2389,18 @@ static void pci_add_option_rom(PCIDevice *pdev, bool is_default_rom, memory_region_init_rom(&pdev->rom, OBJECT(pdev), name, pdev->romsize, &error_fatal); - ptr = memory_region_get_ram_ptr(&pdev->rom); - if (load_image_size(path, ptr, size) < 0) { - error_setg(errp, "failed to load romfile \"%s\"", pdev->romfile); - return; - } + if (load_file) { + void *ptr = memory_region_get_ram_ptr(&pdev->rom); - if (is_default_rom) { - /* Only the default rom images will be patched (if needed). */ - pci_patch_ids(pdev, ptr, size); + if (load_image_size(path, ptr, size) < 0) { + error_setg(errp, "failed to load romfile \"%s\"", pdev->romfile); + return; + } + + if (is_default_rom) { + /* Only the default rom images will be patched (if needed). */ + pci_patch_ids(pdev, ptr, size); + } } pci_register_bar(pdev, PCI_ROM_SLOT, 0, &pdev->rom); |