Adding the following utility functions:
* boot_lchs_find_pci_device * boot_lchs_find_scsi_device * boot_lchs_find_ata_device
These will be used to apply LCHS values received through fw_cfg.
Reviewed-by: Karl Heubaum karl.heubaum@oracle.com Reviewed-by: Arbel Moshe arbel.moshe@oracle.com Signed-off-by: Sam Eiderman shmuel.eiderman@oracle.com --- src/boot.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ src/util.h | 6 ++++++ 2 files changed, 69 insertions(+)
diff --git a/src/boot.c b/src/boot.c index 78d2c530..8162cb74 100644 --- a/src/boot.c +++ b/src/boot.c @@ -149,6 +149,69 @@ loadBiosGeometry(void) } }
+// Search the bios-geometry list for the given glob pattern. +static BootDeviceLCHS * +boot_lchs_find(const char *glob) +{ + dprintf(1, "Searching bios-geometry for: %s\n", glob); + int i; + for (i = 0; i < BiosGeometryCount; i++) + if (glob_prefix(glob, BiosGeometry[i].name)) + return &BiosGeometry[i]; + return NULL; +} + +int boot_lchs_find_pci_device(struct pci_device *pci, struct chs_s *chs) +{ + char desc[256]; + build_pci_path(desc, sizeof(desc), "*", pci); + BootDeviceLCHS *b = boot_lchs_find(desc); + if (!b) + return -1; + chs->cylinder = (u16)b->lcyls; + chs->head = (u16)b->lheads; + chs->sector = (u16)b->lsecs; + return 0; +} + +int boot_lchs_find_scsi_device(struct pci_device *pci, int target, int lun, + struct chs_s *chs) +{ + if (!pci) + // support only pci machine for now + return -1; + // Find scsi drive - for example: /pci@i0cf8/scsi@5/channel@0/disk@1,0 + char desc[256], *p; + p = build_pci_path(desc, sizeof(desc), "*", pci); + snprintf(p, desc+sizeof(desc)-p, "/*@0/*@%x,%x", target, lun); + BootDeviceLCHS *b = boot_lchs_find(desc); + if (!b) + return -1; + chs->cylinder = (u16)b->lcyls; + chs->head = (u16)b->lheads; + chs->sector = (u16)b->lsecs; + return 0; +} + +int boot_lchs_find_ata_device(struct pci_device *pci, int chanid, int slave, + struct chs_s *chs) +{ + if (!pci) + // support only pci machine for now + return -1; + // Find ata drive - for example: /pci@i0cf8/ide@1,1/drive@1/disk@0 + char desc[256], *p; + p = build_pci_path(desc, sizeof(desc), "*", pci); + snprintf(p, desc+sizeof(desc)-p, "/drive@%x/disk@%x", chanid, slave); + BootDeviceLCHS *b = boot_lchs_find(desc); + if (!b) + return -1; + chs->cylinder = (u16)b->lcyls; + chs->head = (u16)b->lheads; + chs->sector = (u16)b->lsecs; + return 0; +} +
/**************************************************************** * Boot priority ordering diff --git a/src/util.h b/src/util.h index e2afc80c..b173fa88 100644 --- a/src/util.h +++ b/src/util.h @@ -38,6 +38,12 @@ struct usbdevice_s; int bootprio_find_usb(struct usbdevice_s *usbdev, int lun); int get_keystroke_full(int msec); int get_keystroke(int msec); +struct chs_s; +int boot_lchs_find_pci_device(struct pci_device *pci, struct chs_s *chs); +int boot_lchs_find_scsi_device(struct pci_device *pci, int target, int lun, + struct chs_s *chs); +int boot_lchs_find_ata_device(struct pci_device *pci, int chanid, int slave, + struct chs_s *chs);
// bootsplash.c void enable_vga_console(void);