loader.efi: efipart should be more careful about constructing block device lists
The cd handles should be collected as list of partitions. Some systems also provide base name for block device (like PciRoot(0x0)/Pci(0x5,0x0)), we need to be careful about those. To make out life a bit easier, we prepare not just an array of handles, but we allocate pdinfo struct for each handle and devicepath, then we can simplify our work to sort the devices. Differential Revision: https://reviews.freebsd.org/D21187
This commit is contained in:
Toomas Soome
parent
98dc8da58c
commit
a15a23234d
@ -100,12 +100,18 @@ struct devsw efipart_hddev = {
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.dv_cleanup = NULL
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};
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static pdinfo_list_t fdinfo;
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static pdinfo_list_t cdinfo;
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static pdinfo_list_t hdinfo;
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static pdinfo_list_t fdinfo = STAILQ_HEAD_INITIALIZER(fdinfo);
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static pdinfo_list_t cdinfo = STAILQ_HEAD_INITIALIZER(cdinfo);
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static pdinfo_list_t hdinfo = STAILQ_HEAD_INITIALIZER(hdinfo);
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static EFI_HANDLE *efipart_handles = NULL;
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static UINTN efipart_nhandles = 0;
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/*
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* efipart_inithandles() is used to build up the pdinfo list from
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* block device handles. Then each devsw init callback is used to
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* pick items from pdinfo and move to proper device list.
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* In ideal world, we should end up with empty pdinfo once all
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* devsw initializers are called.
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*/
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static pdinfo_list_t pdinfo = STAILQ_HEAD_INITIALIZER(pdinfo);
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pdinfo_list_t *
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efiblk_get_pdinfo_list(struct devsw *dev)
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@ -141,9 +147,11 @@ pdinfo_t *
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efiblk_get_pdinfo_by_device_path(EFI_DEVICE_PATH *path)
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{
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EFI_HANDLE h;
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EFI_STATUS status;
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EFI_DEVICE_PATH *devp = path;
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h = efi_devpath_to_handle(path, efipart_handles, efipart_nhandles);
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if (h == NULL)
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status = BS->LocateDevicePath(&blkio_guid, &devp, &h);
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if (EFI_ERROR(status))
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return (NULL);
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return (efiblk_get_pdinfo_by_handle(h));
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}
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@ -174,6 +182,10 @@ efiblk_get_pdinfo_by_handle(EFI_HANDLE h)
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STAILQ_FOREACH(dp, &cdinfo, pd_link) {
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if (same_handle(dp, h))
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return (dp);
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STAILQ_FOREACH(pp, &dp->pd_part, pd_link) {
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if (same_handle(pp, h))
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return (pp);
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}
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}
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STAILQ_FOREACH(dp, &fdinfo, pd_link) {
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if (same_handle(dp, h))
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@ -197,15 +209,16 @@ efiblk_pdinfo_count(pdinfo_list_t *pdi)
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int
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efipart_inithandles(void)
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{
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unsigned i, nin;
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UINTN sz;
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EFI_HANDLE *hin;
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EFI_DEVICE_PATH *devpath;
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EFI_BLOCK_IO *blkio;
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EFI_STATUS status;
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pdinfo_t *pd;
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if (efipart_nhandles != 0) {
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free(efipart_handles);
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efipart_handles = NULL;
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efipart_nhandles = 0;
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}
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if (!STAILQ_EMPTY(&pdinfo))
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return (0);
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sz = 0;
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hin = NULL;
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@ -220,12 +233,51 @@ efipart_inithandles(void)
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if (EFI_ERROR(status))
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return (efi_status_to_errno(status));
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efipart_handles = hin;
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efipart_nhandles = sz / sizeof(*hin);
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nin = sz / sizeof(*hin);
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#ifdef EFIPART_DEBUG
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printf("%s: Got %d BLOCK IO MEDIA handle(s)\n", __func__,
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efipart_nhandles);
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printf("%s: Got %d BLOCK IO MEDIA handle(s)\n", __func__, nin);
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#endif
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for (i = 0; i < nin; i++) {
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/*
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* Get devpath and open protocol.
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* We should not get errors here
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*/
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if ((devpath = efi_lookup_devpath(hin[i])) == NULL)
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continue;
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status = OpenProtocolByHandle(hin[i], &blkio_guid,
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(void **)&blkio);
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if (EFI_ERROR(status)) {
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printf("error %lu\n", EFI_ERROR_CODE(status));
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continue;
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}
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/*
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* We assume the block size 512 or greater power of 2.
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* iPXE is known to insert stub BLOCK IO device with
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* BlockSize 1.
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*/
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if (blkio->Media->BlockSize < 512 ||
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!powerof2(blkio->Media->BlockSize)) {
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continue;
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}
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/* This is bad. */
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if ((pd = calloc(1, sizeof(*pd))) == NULL) {
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printf("efipart_inithandles: Out of memory.\n");
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free(hin);
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return (ENOMEM);
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}
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STAILQ_INIT(&pd->pd_part);
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pd->pd_handle = hin[i];
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pd->pd_devpath = devpath;
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pd->pd_blkio = blkio;
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STAILQ_INSERT_TAIL(&pdinfo, pd, pd_link);
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}
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free(hin);
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return (0);
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}
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@ -246,133 +298,48 @@ efipart_floppy(EFI_DEVICE_PATH *node)
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return (NULL);
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}
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/*
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* Determine if the provided device path is hdd.
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*
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* There really is no simple fool proof way to classify the devices.
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* Since we do build three lists of devices - floppy, cd and hdd, we
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* will try to see if the device is floppy or cd, and list anything else
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* as hdd.
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*/
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static bool
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efipart_hdd(EFI_DEVICE_PATH *dp)
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static pdinfo_t *
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efipart_find_parent(pdinfo_list_t *pdi, EFI_DEVICE_PATH *devpath)
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{
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unsigned i;
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EFI_DEVICE_PATH *devpath, *node;
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EFI_BLOCK_IO *blkio;
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EFI_STATUS status;
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pdinfo_t *pd;
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if (dp == NULL)
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return (false);
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if ((node = efi_devpath_last_node(dp)) == NULL)
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return (false);
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if (efipart_floppy(node) != NULL)
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return (false);
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/*
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* Test every EFI BLOCK IO handle to make sure dp is not device path
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* for CD/DVD.
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*/
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for (i = 0; i < efipart_nhandles; i++) {
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devpath = efi_lookup_devpath(efipart_handles[i]);
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if (devpath == NULL)
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return (false);
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/* Only continue testing when dp is prefix in devpath. */
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if (!efi_devpath_is_prefix(dp, devpath))
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continue;
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/*
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* The device path has to have last node describing the
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* device, or we can not test the type.
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*/
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if ((node = efi_devpath_last_node(devpath)) == NULL)
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return (false);
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if (DevicePathType(node) == MEDIA_DEVICE_PATH &&
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DevicePathSubType(node) == MEDIA_CDROM_DP) {
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return (false);
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}
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/* Make sure we do have the media. */
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status = OpenProtocolByHandle(efipart_handles[i], &blkio_guid,
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(void **)&blkio);
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if (EFI_ERROR(status))
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return (false);
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/* USB or SATA cd without the media. */
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if (blkio->Media->RemovableMedia &&
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!blkio->Media->MediaPresent) {
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return (false);
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}
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/*
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* We assume the block size 512 or greater power of 2.
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* iPXE is known to insert stub BLOCK IO device with
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* BlockSize 1.
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*/
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if (blkio->Media->BlockSize < 512 ||
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!powerof2(blkio->Media->BlockSize)) {
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return (false);
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}
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}
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return (true);
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}
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/*
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* Add or update entries with new handle data.
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*/
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static int
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efipart_fdinfo_add(EFI_HANDLE handle, uint32_t uid, EFI_DEVICE_PATH *devpath)
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{
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pdinfo_t *fd;
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fd = calloc(1, sizeof(pdinfo_t));
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if (fd == NULL) {
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printf("Failed to register floppy %d, out of memory\n", uid);
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return (ENOMEM);
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}
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STAILQ_INIT(&fd->pd_part);
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fd->pd_unit = uid;
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fd->pd_handle = handle;
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fd->pd_devpath = devpath;
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fd->pd_parent = NULL;
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fd->pd_devsw = &efipart_fddev;
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STAILQ_INSERT_TAIL(&fdinfo, fd, pd_link);
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return (0);
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}
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static void
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efipart_updatefd(void)
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{
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EFI_DEVICE_PATH *devpath, *node;
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ACPI_HID_DEVICE_PATH *acpi;
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int i;
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for (i = 0; i < efipart_nhandles; i++) {
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devpath = efi_lookup_devpath(efipart_handles[i]);
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if (devpath == NULL)
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continue;
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if ((node = efi_devpath_last_node(devpath)) == NULL)
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continue;
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if ((acpi = efipart_floppy(node)) != NULL) {
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efipart_fdinfo_add(efipart_handles[i], acpi->UID,
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devpath);
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}
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STAILQ_FOREACH(pd, pdi, pd_link) {
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if (efi_devpath_is_prefix(pd->pd_devpath, devpath))
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return (pd);
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}
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return (NULL);
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}
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static int
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efipart_initfd(void)
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{
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EFI_DEVICE_PATH *node;
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ACPI_HID_DEVICE_PATH *acpi;
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pdinfo_t *parent, *fd;
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STAILQ_INIT(&fdinfo);
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restart:
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STAILQ_FOREACH(fd, &pdinfo, pd_link) {
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if ((node = efi_devpath_last_node(fd->pd_devpath)) == NULL)
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continue;
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efipart_updatefd();
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if ((acpi = efipart_floppy(node)) == NULL)
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continue;
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STAILQ_REMOVE(&pdinfo, fd, pdinfo, pd_link);
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parent = efipart_find_parent(&pdinfo, fd->pd_devpath);
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if (parent != NULL) {
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STAILQ_REMOVE(&pdinfo, parent, pdinfo, pd_link);
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parent->pd_alias = fd->pd_handle;
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parent->pd_unit = acpi->UID;
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free(fd);
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fd = parent;
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} else {
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fd->pd_unit = acpi->UID;
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}
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fd->pd_devsw = &efipart_fddev;
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STAILQ_INSERT_TAIL(&fdinfo, fd, pd_link);
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goto restart;
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}
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bcache_add_dev(efiblk_pdinfo_count(&fdinfo));
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return (0);
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@ -381,68 +348,90 @@ efipart_initfd(void)
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/*
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* Add or update entries with new handle data.
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*/
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static int
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efipart_cdinfo_add(EFI_HANDLE handle, EFI_HANDLE alias,
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EFI_DEVICE_PATH *devpath)
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static void
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efipart_cdinfo_add(pdinfo_t *cd)
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{
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int unit;
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pdinfo_t *cd;
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pdinfo_t *pd;
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pdinfo_t *pd, *last;
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unit = 0;
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STAILQ_FOREACH(pd, &cdinfo, pd_link) {
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if (efi_devpath_match(pd->pd_devpath, devpath) == true) {
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pd->pd_handle = handle;
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pd->pd_alias = alias;
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return (0);
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if (efi_devpath_is_prefix(pd->pd_devpath, cd->pd_devpath)) {
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last = STAILQ_LAST(&pd->pd_part, pdinfo, pd_link);
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if (last != NULL)
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cd->pd_unit = last->pd_unit + 1;
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else
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cd->pd_unit = 0;
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cd->pd_parent = pd;
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cd->pd_devsw = &efipart_cddev;
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STAILQ_INSERT_TAIL(&pd->pd_part, cd, pd_link);
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return;
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}
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unit++;
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}
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cd = calloc(1, sizeof(pdinfo_t));
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if (cd == NULL) {
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printf("Failed to add cd %d, out of memory\n", unit);
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return (ENOMEM);
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}
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STAILQ_INIT(&cd->pd_part);
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last = STAILQ_LAST(&cdinfo, pdinfo, pd_link);
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if (last != NULL)
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cd->pd_unit = last->pd_unit + 1;
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else
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cd->pd_unit = 0;
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cd->pd_handle = handle;
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cd->pd_unit = unit;
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cd->pd_alias = alias;
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cd->pd_devpath = devpath;
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cd->pd_parent = NULL;
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cd->pd_devsw = &efipart_cddev;
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STAILQ_INSERT_TAIL(&cdinfo, cd, pd_link);
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return (0);
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}
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static bool
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efipart_testcd(EFI_DEVICE_PATH *node, EFI_BLOCK_IO *blkio)
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{
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if (DevicePathType(node) == MEDIA_DEVICE_PATH &&
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DevicePathSubType(node) == MEDIA_CDROM_DP) {
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return (true);
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}
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/* cd drive without the media. */
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if (blkio->Media->RemovableMedia &&
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!blkio->Media->MediaPresent) {
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return (true);
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}
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return (false);
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}
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static void
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efipart_updatecd(void)
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{
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int i;
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EFI_DEVICE_PATH *devpath, *devpathcpy, *tmpdevpath, *node;
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EFI_HANDLE handle;
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EFI_BLOCK_IO *blkio;
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EFI_DEVICE_PATH *devpath, *node;
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EFI_STATUS status;
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pdinfo_t *parent, *cd;
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for (i = 0; i < efipart_nhandles; i++) {
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devpath = efi_lookup_devpath(efipart_handles[i]);
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if (devpath == NULL)
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continue;
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if ((node = efi_devpath_last_node(devpath)) == NULL)
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restart:
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STAILQ_FOREACH(cd, &pdinfo, pd_link) {
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if ((node = efi_devpath_last_node(cd->pd_devpath)) == NULL)
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continue;
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if (efipart_floppy(node) != NULL)
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continue;
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if (efipart_hdd(devpath))
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/* Is parent of this device already registered? */
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parent = efipart_find_parent(&cdinfo, cd->pd_devpath);
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if (parent != NULL) {
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STAILQ_REMOVE(&pdinfo, cd, pdinfo, pd_link);
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efipart_cdinfo_add(cd);
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goto restart;
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}
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if (!efipart_testcd(node, cd->pd_blkio))
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continue;
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status = OpenProtocolByHandle(efipart_handles[i], &blkio_guid,
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(void **)&blkio);
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if (EFI_ERROR(status))
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continue;
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/* Find parent and unlink both parent and cd from pdinfo */
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STAILQ_REMOVE(&pdinfo, cd, pdinfo, pd_link);
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parent = efipart_find_parent(&pdinfo, cd->pd_devpath);
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if (parent != NULL) {
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STAILQ_REMOVE(&pdinfo, parent, pdinfo, pd_link);
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efipart_cdinfo_add(parent);
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}
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if (parent == NULL)
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parent = efipart_find_parent(&cdinfo, cd->pd_devpath);
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/*
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* If we come across a logical partition of subtype CDROM
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* it doesn't refer to the CD filesystem itself, but rather
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@ -451,132 +440,79 @@ efipart_updatecd(void)
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* that will be the CD filesystem.
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*/
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if (DevicePathType(node) == MEDIA_DEVICE_PATH &&
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DevicePathSubType(node) == MEDIA_CDROM_DP) {
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devpathcpy = efi_devpath_trim(devpath);
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if (devpathcpy == NULL)
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continue;
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tmpdevpath = devpathcpy;
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status = BS->LocateDevicePath(&blkio_guid, &tmpdevpath,
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&handle);
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free(devpathcpy);
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if (EFI_ERROR(status))
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continue;
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devpath = efi_lookup_devpath(handle);
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efipart_cdinfo_add(handle, efipart_handles[i],
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devpath);
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continue;
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DevicePathSubType(node) == MEDIA_CDROM_DP &&
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parent == NULL) {
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parent = calloc(1, sizeof(*parent));
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if (parent == NULL) {
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printf("efipart_updatecd: out of memory\n");
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/* this device is lost but try again. */
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free(cd);
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goto restart;
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}
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devpath = efi_devpath_trim(cd->pd_devpath);
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if (devpath == NULL) {
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printf("efipart_updatecd: out of memory\n");
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/* this device is lost but try again. */
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free(parent);
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free(cd);
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goto restart;
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}
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parent->pd_devpath = devpath;
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status = BS->LocateDevicePath(&blkio_guid,
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&parent->pd_devpath, &parent->pd_handle);
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free(devpath);
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if (EFI_ERROR(status)) {
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printf("efipart_updatecd: error %lu\n",
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EFI_ERROR_CODE(status));
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free(parent);
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free(cd);
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goto restart;
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}
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parent->pd_devpath =
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efi_lookup_devpath(parent->pd_handle);
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efipart_cdinfo_add(parent);
|
||||
}
|
||||
|
||||
if (DevicePathType(node) == MESSAGING_DEVICE_PATH &&
|
||||
DevicePathSubType(node) == MSG_ATAPI_DP) {
|
||||
efipart_cdinfo_add(efipart_handles[i], NULL,
|
||||
devpath);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* USB or SATA cd without the media. */
|
||||
if (blkio->Media->RemovableMedia &&
|
||||
!blkio->Media->MediaPresent) {
|
||||
efipart_cdinfo_add(efipart_handles[i], NULL,
|
||||
devpath);
|
||||
}
|
||||
efipart_cdinfo_add(cd);
|
||||
goto restart;
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
efipart_initcd(void)
|
||||
{
|
||||
|
||||
STAILQ_INIT(&cdinfo);
|
||||
|
||||
efipart_updatecd();
|
||||
|
||||
bcache_add_dev(efiblk_pdinfo_count(&cdinfo));
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
efipart_hdinfo_add(EFI_HANDLE disk_handle, EFI_HANDLE part_handle)
|
||||
static void
|
||||
efipart_hdinfo_add(pdinfo_t *hd, HARDDRIVE_DEVICE_PATH *node)
|
||||
{
|
||||
EFI_DEVICE_PATH *disk_devpath, *part_devpath;
|
||||
HARDDRIVE_DEVICE_PATH *node;
|
||||
int unit;
|
||||
pdinfo_t *hd, *pd, *last;
|
||||
|
||||
disk_devpath = efi_lookup_devpath(disk_handle);
|
||||
if (disk_devpath == NULL)
|
||||
return (ENOENT);
|
||||
|
||||
if (part_handle != NULL) {
|
||||
part_devpath = efi_lookup_devpath(part_handle);
|
||||
if (part_devpath == NULL)
|
||||
return (ENOENT);
|
||||
node = (HARDDRIVE_DEVICE_PATH *)
|
||||
efi_devpath_last_node(part_devpath);
|
||||
if (node == NULL)
|
||||
return (ENOENT); /* This should not happen. */
|
||||
} else {
|
||||
part_devpath = NULL;
|
||||
node = NULL;
|
||||
}
|
||||
|
||||
pd = calloc(1, sizeof(pdinfo_t));
|
||||
if (pd == NULL) {
|
||||
printf("Failed to add disk, out of memory\n");
|
||||
return (ENOMEM);
|
||||
}
|
||||
STAILQ_INIT(&pd->pd_part);
|
||||
|
||||
STAILQ_FOREACH(hd, &hdinfo, pd_link) {
|
||||
if (efi_devpath_match(hd->pd_devpath, disk_devpath) == true) {
|
||||
if (part_devpath == NULL)
|
||||
return (0);
|
||||
pdinfo_t *pd, *last;
|
||||
|
||||
STAILQ_FOREACH(pd, &hdinfo, pd_link) {
|
||||
if (efi_devpath_is_prefix(pd->pd_devpath, hd->pd_devpath)) {
|
||||
/* Add the partition. */
|
||||
pd->pd_handle = part_handle;
|
||||
pd->pd_unit = node->PartitionNumber;
|
||||
pd->pd_devpath = part_devpath;
|
||||
pd->pd_parent = hd;
|
||||
pd->pd_devsw = &efipart_hddev;
|
||||
STAILQ_INSERT_TAIL(&hd->pd_part, pd, pd_link);
|
||||
return (0);
|
||||
hd->pd_unit = node->PartitionNumber;
|
||||
hd->pd_parent = pd;
|
||||
hd->pd_devsw = &efipart_hddev;
|
||||
STAILQ_INSERT_TAIL(&pd->pd_part, hd, pd_link);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
last = STAILQ_LAST(&hdinfo, pdinfo, pd_link);
|
||||
if (last != NULL)
|
||||
unit = last->pd_unit + 1;
|
||||
hd->pd_unit = last->pd_unit + 1;
|
||||
else
|
||||
unit = 0;
|
||||
hd->pd_unit = 0;
|
||||
|
||||
/* Add the disk. */
|
||||
hd = pd;
|
||||
hd->pd_handle = disk_handle;
|
||||
hd->pd_unit = unit;
|
||||
hd->pd_devpath = disk_devpath;
|
||||
hd->pd_parent = NULL;
|
||||
hd->pd_devsw = &efipart_hddev;
|
||||
STAILQ_INSERT_TAIL(&hdinfo, hd, pd_link);
|
||||
|
||||
if (part_devpath == NULL)
|
||||
return (0);
|
||||
|
||||
pd = calloc(1, sizeof(pdinfo_t));
|
||||
if (pd == NULL) {
|
||||
printf("Failed to add partition, out of memory\n");
|
||||
return (ENOMEM);
|
||||
}
|
||||
STAILQ_INIT(&pd->pd_part);
|
||||
|
||||
/* Add the partition. */
|
||||
pd->pd_handle = part_handle;
|
||||
pd->pd_unit = node->PartitionNumber;
|
||||
pd->pd_devpath = part_devpath;
|
||||
pd->pd_parent = hd;
|
||||
pd->pd_devsw = &efipart_hddev;
|
||||
STAILQ_INSERT_TAIL(&hd->pd_part, pd, pd_link);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -585,40 +521,25 @@ efipart_hdinfo_add(EFI_HANDLE disk_handle, EFI_HANDLE part_handle)
|
||||
* of typeN:M, where type is interface type, N is disk id
|
||||
* and M is partition id.
|
||||
*/
|
||||
static int
|
||||
efipart_hdinfo_add_filepath(EFI_HANDLE disk_handle)
|
||||
static void
|
||||
efipart_hdinfo_add_filepath(pdinfo_t *hd, FILEPATH_DEVICE_PATH *node)
|
||||
{
|
||||
EFI_DEVICE_PATH *devpath;
|
||||
FILEPATH_DEVICE_PATH *node;
|
||||
char *pathname, *p;
|
||||
int unit, len;
|
||||
pdinfo_t *pd, *last;
|
||||
int len;
|
||||
pdinfo_t *last;
|
||||
|
||||
/* First collect and verify all the data */
|
||||
if ((devpath = efi_lookup_devpath(disk_handle)) == NULL)
|
||||
return (ENOENT);
|
||||
node = (FILEPATH_DEVICE_PATH *)efi_devpath_last_node(devpath);
|
||||
if (node == NULL)
|
||||
return (ENOENT); /* This should not happen. */
|
||||
|
||||
pd = calloc(1, sizeof(pdinfo_t));
|
||||
if (pd == NULL) {
|
||||
printf("Failed to add disk, out of memory\n");
|
||||
return (ENOMEM);
|
||||
}
|
||||
STAILQ_INIT(&pd->pd_part);
|
||||
last = STAILQ_LAST(&hdinfo, pdinfo, pd_link);
|
||||
if (last != NULL)
|
||||
unit = last->pd_unit + 1;
|
||||
hd->pd_unit = last->pd_unit + 1;
|
||||
else
|
||||
unit = 0;
|
||||
hd->pd_unit = 0;
|
||||
|
||||
/* FILEPATH_DEVICE_PATH has 0 terminated string */
|
||||
len = ucs2len(node->PathName);
|
||||
if ((pathname = malloc(len + 1)) == NULL) {
|
||||
printf("Failed to add disk, out of memory\n");
|
||||
free(pd);
|
||||
return (ENOMEM);
|
||||
free(hd);
|
||||
return;
|
||||
}
|
||||
cpy16to8(node->PathName, pathname, len + 1);
|
||||
p = strchr(pathname, ':');
|
||||
@ -629,23 +550,19 @@ efipart_hdinfo_add_filepath(EFI_HANDLE disk_handle)
|
||||
* false, this code would need update.
|
||||
*/
|
||||
if (p == NULL) { /* no colon, add the disk */
|
||||
pd->pd_handle = disk_handle;
|
||||
pd->pd_unit = unit;
|
||||
pd->pd_devpath = devpath;
|
||||
pd->pd_parent = NULL;
|
||||
pd->pd_devsw = &efipart_hddev;
|
||||
STAILQ_INSERT_TAIL(&hdinfo, pd, pd_link);
|
||||
hd->pd_devsw = &efipart_hddev;
|
||||
STAILQ_INSERT_TAIL(&hdinfo, hd, pd_link);
|
||||
free(pathname);
|
||||
return (0);
|
||||
return;
|
||||
}
|
||||
p++; /* skip the colon */
|
||||
errno = 0;
|
||||
unit = (int)strtol(p, NULL, 0);
|
||||
hd->pd_unit = (int)strtol(p, NULL, 0);
|
||||
if (errno != 0) {
|
||||
printf("Bad unit number for partition \"%s\"\n", pathname);
|
||||
free(pathname);
|
||||
free(pd);
|
||||
return (EUNIT);
|
||||
free(hd);
|
||||
return;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -657,80 +574,98 @@ efipart_hdinfo_add_filepath(EFI_HANDLE disk_handle)
|
||||
if (last == NULL) {
|
||||
printf("BUG: No disk for partition \"%s\"\n", pathname);
|
||||
free(pathname);
|
||||
free(pd);
|
||||
return (EINVAL);
|
||||
free(hd);
|
||||
return;
|
||||
}
|
||||
/* Add the partition. */
|
||||
pd->pd_handle = disk_handle;
|
||||
pd->pd_unit = unit;
|
||||
pd->pd_devpath = devpath;
|
||||
pd->pd_parent = last;
|
||||
pd->pd_devsw = &efipart_hddev;
|
||||
STAILQ_INSERT_TAIL(&last->pd_part, pd, pd_link);
|
||||
hd->pd_parent = last;
|
||||
hd->pd_devsw = &efipart_hddev;
|
||||
STAILQ_INSERT_TAIL(&last->pd_part, hd, pd_link);
|
||||
free(pathname);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
efipart_updatehd(void)
|
||||
{
|
||||
int i;
|
||||
EFI_DEVICE_PATH *devpath, *devpathcpy, *tmpdevpath, *node;
|
||||
EFI_HANDLE handle;
|
||||
EFI_BLOCK_IO *blkio;
|
||||
EFI_DEVICE_PATH *devpath, *node;
|
||||
EFI_STATUS status;
|
||||
pdinfo_t *parent, *hd;
|
||||
|
||||
for (i = 0; i < efipart_nhandles; i++) {
|
||||
devpath = efi_lookup_devpath(efipart_handles[i]);
|
||||
if (devpath == NULL)
|
||||
restart:
|
||||
STAILQ_FOREACH(hd, &pdinfo, pd_link) {
|
||||
if ((node = efi_devpath_last_node(hd->pd_devpath)) == NULL)
|
||||
continue;
|
||||
|
||||
if ((node = efi_devpath_last_node(devpath)) == NULL)
|
||||
if (efipart_floppy(node) != NULL)
|
||||
continue;
|
||||
|
||||
if (!efipart_hdd(devpath))
|
||||
if (efipart_testcd(node, hd->pd_blkio))
|
||||
continue;
|
||||
|
||||
status = OpenProtocolByHandle(efipart_handles[i], &blkio_guid,
|
||||
(void **)&blkio);
|
||||
if (EFI_ERROR(status))
|
||||
continue;
|
||||
if (DevicePathType(node) == HARDWARE_DEVICE_PATH &&
|
||||
DevicePathSubType(node) == HW_PCI_DP) {
|
||||
STAILQ_REMOVE(&pdinfo, hd, pdinfo, pd_link);
|
||||
efipart_hdinfo_add(hd, NULL);
|
||||
goto restart;
|
||||
}
|
||||
|
||||
if (DevicePathType(node) == MEDIA_DEVICE_PATH &&
|
||||
DevicePathSubType(node) == MEDIA_FILEPATH_DP) {
|
||||
efipart_hdinfo_add_filepath(efipart_handles[i]);
|
||||
continue;
|
||||
STAILQ_REMOVE(&pdinfo, hd, pdinfo, pd_link);
|
||||
efipart_hdinfo_add_filepath(hd,
|
||||
(FILEPATH_DEVICE_PATH *)node);
|
||||
goto restart;
|
||||
}
|
||||
|
||||
STAILQ_REMOVE(&pdinfo, hd, pdinfo, pd_link);
|
||||
parent = efipart_find_parent(&pdinfo, hd->pd_devpath);
|
||||
if (parent != NULL) {
|
||||
STAILQ_REMOVE(&pdinfo, parent, pdinfo, pd_link);
|
||||
efipart_hdinfo_add(parent, NULL);
|
||||
} else {
|
||||
parent = efipart_find_parent(&hdinfo, hd->pd_devpath);
|
||||
}
|
||||
|
||||
if (DevicePathType(node) == MEDIA_DEVICE_PATH &&
|
||||
DevicePathSubType(node) == MEDIA_HARDDRIVE_DP) {
|
||||
devpathcpy = efi_devpath_trim(devpath);
|
||||
if (devpathcpy == NULL)
|
||||
continue;
|
||||
tmpdevpath = devpathcpy;
|
||||
status = BS->LocateDevicePath(&blkio_guid, &tmpdevpath,
|
||||
&handle);
|
||||
free(devpathcpy);
|
||||
if (EFI_ERROR(status))
|
||||
continue;
|
||||
/*
|
||||
* We do not support nested partitions.
|
||||
*/
|
||||
devpathcpy = efi_lookup_devpath(handle);
|
||||
if (devpathcpy == NULL)
|
||||
continue;
|
||||
if ((node = efi_devpath_last_node(devpathcpy)) == NULL)
|
||||
continue;
|
||||
DevicePathSubType(node) == MEDIA_HARDDRIVE_DP &&
|
||||
parent == NULL) {
|
||||
parent = calloc(1, sizeof(*parent));
|
||||
if (parent == NULL) {
|
||||
printf("efipart_updatehd: out of memory\n");
|
||||
/* this device is lost but try again. */
|
||||
free(hd);
|
||||
goto restart;
|
||||
}
|
||||
|
||||
if (DevicePathType(node) == MEDIA_DEVICE_PATH &&
|
||||
DevicePathSubType(node) == MEDIA_HARDDRIVE_DP)
|
||||
continue;
|
||||
devpath = efi_devpath_trim(hd->pd_devpath);
|
||||
if (devpath == NULL) {
|
||||
printf("efipart_updatehd: out of memory\n");
|
||||
/* this device is lost but try again. */
|
||||
free(parent);
|
||||
free(hd);
|
||||
goto restart;
|
||||
}
|
||||
|
||||
efipart_hdinfo_add(handle, efipart_handles[i]);
|
||||
continue;
|
||||
parent->pd_devpath = devpath;
|
||||
status = BS->LocateDevicePath(&blkio_guid,
|
||||
&parent->pd_devpath, &parent->pd_handle);
|
||||
free(devpath);
|
||||
if (EFI_ERROR(status)) {
|
||||
printf("efipart_updatehd: error %lu\n",
|
||||
EFI_ERROR_CODE(status));
|
||||
free(parent);
|
||||
free(hd);
|
||||
goto restart;
|
||||
}
|
||||
|
||||
parent->pd_devpath =
|
||||
efi_lookup_devpath(&parent->pd_handle);
|
||||
|
||||
efipart_hdinfo_add(parent, NULL);
|
||||
}
|
||||
|
||||
efipart_hdinfo_add(efipart_handles[i], NULL);
|
||||
efipart_hdinfo_add(hd, (HARDDRIVE_DEVICE_PATH *)node);
|
||||
goto restart;
|
||||
}
|
||||
}
|
||||
|
||||
@ -738,8 +673,6 @@ static int
|
||||
efipart_inithd(void)
|
||||
{
|
||||
|
||||
STAILQ_INIT(&hdinfo);
|
||||
|
||||
efipart_updatehd();
|
||||
|
||||
bcache_add_dev(efiblk_pdinfo_count(&hdinfo));
|
||||
@ -852,7 +785,7 @@ efipart_open(struct open_file *f, ...)
|
||||
EFI_STATUS status;
|
||||
|
||||
va_start(args, f);
|
||||
dev = va_arg(args, struct disk_devdesc*);
|
||||
dev = va_arg(args, struct disk_devdesc *);
|
||||
va_end(args);
|
||||
if (dev == NULL)
|
||||
return (EINVAL);
|
||||
@ -1044,7 +977,7 @@ efipart_realstrategy(void *devdata, int rw, daddr_t blk, size_t size,
|
||||
char *blkbuf;
|
||||
size_t blkoff, blksz;
|
||||
int error;
|
||||
size_t diskend, readstart;
|
||||
uint64_t diskend, readstart;
|
||||
|
||||
if (dev == NULL || blk < 0)
|
||||
return (EINVAL);
|
||||
@ -1101,7 +1034,7 @@ efipart_realstrategy(void *devdata, int rw, daddr_t blk, size_t size,
|
||||
size / blkio->Media->BlockSize, buf));
|
||||
|
||||
/*
|
||||
* The block size of the media is not a multiple of I/O.
|
||||
* The buffer size is not a multiple of the media block size.
|
||||
*/
|
||||
blkbuf = malloc(blkio->Media->BlockSize);
|
||||
if (blkbuf == NULL)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user