d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

loader.efi: HARDDRIVE_DEVICE_PATH may have subpaths

Browse Source 
The macos does create Vendor Media devices on top of APFS container
(like partition table inside the partition), so we need to collect such
devices into respective device tree.

MFC after:	1 week
This commit is contained in:
Toomas Soome 2019-11-06 21:13:10 +00:00
parent 044ab55e41
commit f6689bce79
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=354415
1 changed files with 38 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
stand/efi/libefi/efipart.c
View File

@ -313,11 +313,14 @@ efipart_floppy(EFI_DEVICE_PATH *node)
static pdinfo_t *
efipart_find_parent(pdinfo_list_t *pdi, EFI_DEVICE_PATH *devpath)
{
pdinfo_t *pd;
pdinfo_t *pd, *part;
STAILQ_FOREACH(pd, pdi, pd_link) {
if (efi_devpath_is_prefix(pd->pd_devpath, devpath))
return (pd);
part = efipart_find_parent(&pd->pd_part, devpath);
if (part != NULL)
return (part);
}
return (NULL);
}
@ -500,21 +503,43 @@ efipart_initcd(void)
return (0);
}
static bool
efipart_hdinfo_add_node(pdinfo_t *hd, EFI_DEVICE_PATH *node)
{
pdinfo_t *pd, *last;
VENDOR_DEVICE_PATH *ven_node;
STAILQ_FOREACH(pd, &hdinfo, pd_link) {
if (efi_devpath_is_prefix(pd->pd_devpath, hd->pd_devpath))
break;
}
if (pd == NULL)
return (false);
/* Add the partition. */
if (DevicePathSubType(node) == MEDIA_HARDDRIVE_DP) {
hd->pd_unit = ((HARDDRIVE_DEVICE_PATH *)node)->PartitionNumber;
} else {
last = STAILQ_LAST(&pd->pd_part, pdinfo, pd_link);
if (last != NULL)
hd->pd_unit = last->pd_unit + 1;
else
hd->pd_unit = 0;
}
hd->pd_parent = pd;
hd->pd_devsw = &efipart_hddev;
STAILQ_INSERT_TAIL(&pd->pd_part, hd, pd_link);
return (true);
}
static void
efipart_hdinfo_add(pdinfo_t *hd, HARDDRIVE_DEVICE_PATH *node)
efipart_hdinfo_add(pdinfo_t *hd, EFI_DEVICE_PATH *node)
{
pdinfo_t *pd, *last;
STAILQ_FOREACH(pd, &hdinfo, pd_link) {
if (efi_devpath_is_prefix(pd->pd_devpath, hd->pd_devpath)) {
/* Add the partition. */
hd->pd_unit = node->PartitionNumber;
hd->pd_parent = pd;
hd->pd_devsw = &efipart_hddev;
STAILQ_INSERT_TAIL(&pd->pd_part, hd, pd_link);
return;
}
}
if (efipart_hdinfo_add_node(hd, node))
return;
last = STAILQ_LAST(&hdinfo, pdinfo, pd_link);
if (last != NULL)
@ -677,7 +702,7 @@ efipart_updatehd(void)
efipart_hdinfo_add(parent, NULL);
}
efipart_hdinfo_add(hd, (HARDDRIVE_DEVICE_PATH *)node);
efipart_hdinfo_add(hd, node);
goto restart;
}
}