diff options
Diffstat (limited to 'qga/commands-win32.c')
| -rw-r--r-- | qga/commands-win32.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 4fe1517778..1a21aac5ad 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -89,6 +89,12 @@ static OpenFlags guest_file_open_modes[] = { {"a+b", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS } }; +#define debug_error(msg) do { \ + char *suffix = g_win32_error_message(GetLastError()); \ + g_debug("%s: %s", (msg), suffix); \ + g_free(suffix); \ +} while (0) + static OpenFlags *find_open_flag(const char *mode_str) { int mode; @@ -518,6 +524,7 @@ static GuestPCIAddress *get_pci_info(char *guid, Error **errp) goto out; } + g_debug("enumerating devices"); dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { DWORD addr, bus, slot, data, size2; @@ -543,6 +550,7 @@ static GuestPCIAddress *get_pci_info(char *guid, Error **errp) if (g_strcmp0(buffer, dev_name)) { continue; } + g_debug("found device %s", dev_name); /* There is no need to allocate buffer in the next functions. The size * is known and ULONG according to @@ -551,6 +559,7 @@ static GuestPCIAddress *get_pci_info(char *guid, Error **errp) */ if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, SPDRP_BUSNUMBER, &data, (PBYTE)&bus, size, NULL)) { + debug_error("failed to get bus"); bus = -1; partial_pci = true; } @@ -559,6 +568,7 @@ static GuestPCIAddress *get_pci_info(char *guid, Error **errp) * transformed into device function and number */ if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, SPDRP_ADDRESS, &data, (PBYTE)&addr, size, NULL)) { + debug_error("failed to get address"); addr = -1; partial_pci = true; } @@ -567,6 +577,7 @@ static GuestPCIAddress *get_pci_info(char *guid, Error **errp) * This number is typically a user-perceived slot number. */ if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, SPDRP_UI_NUMBER, &data, (PBYTE)&slot, size, NULL)) { + debug_error("failed to get slot"); slot = -1; partial_pci = true; } @@ -639,6 +650,7 @@ static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) scsi_ad = &addr; char *name = g_strndup(guid, strlen(guid)-1); + g_debug("getting disk info for: %s", name); vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); if (vol_h == INVALID_HANDLE_VALUE) { @@ -646,6 +658,7 @@ static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) goto out_free; } + g_debug("getting bus type"); bus = get_disk_bus_type(vol_h, errp); if (bus < 0) { goto out_close; @@ -653,6 +666,7 @@ static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) disk = g_malloc0(sizeof(*disk)); disk->bus_type = find_bus_type(bus); + g_debug("bus type %d", disk->bus_type); /* always set pci_controller as required by schema. get_pci_info() should * report -1 values for non-PCI buses rather than fail. fail the command * if that doesn't hold since that suggests some other unexpected @@ -672,6 +686,7 @@ static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) /* We are able to use the same ioctls for different bus types * according to Microsoft docs * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */ + g_debug("getting pci-controller info"); if (DeviceIoControl(vol_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad, sizeof(SCSI_ADDRESS), &len, NULL)) { disk->unit = addr.Lun; |