Add a new disk driver called obdisk for IEEE1275 platforms. Currently
the only platform using this disk driver is SPARC, however other IEEE1275
platforms could start using it if they so choose. While the functionality
within the current IEEE1275 ofdisk driver may be suitable for PPC and x86, it
presented too many problems on SPARC hardware.
Within the old ofdisk, there is not a way to determine the true canonical
name for the disk. Within Open Boot, the same disk can have multiple names
but all reference the same disk. For example the same disk can be referenced
by its SAS WWN, using this form:
/pci@302/pci@2/pci@0/pci@17/LSI,sas@0/disk@w5000cca02f037d6d,0
It can also be referenced by its PHY identifier using this form:
/pci@302/pci@2/pci@0/pci@17/LSI,sas@0/disk@p0
It can also be referenced by its Target identifier using this form:
/pci@302/pci@2/pci@0/pci@17/LSI,sas@0/disk@0
Also, when the LUN=0, it is legal to omit the ,0 from the device name. So with
the disk above, before taking into account the device aliases, there are 6 ways
to reference the same disk.
Then it is possible to have 0 .. n device aliases all representing the same disk.
Within this new driver the true canonical name is determined using the the
IEEE1275 encode-unit and decode-unit commands when address_cells == 4. This
will determine the true single canonical name for the device so multiple ihandles
are not opened for the same device. This is what frequently happens with the old
ofdisk driver. With some devices when they are opened multiple times it causes
the entire system to hang.
Another problem solved with this driver is devices that do not have a device
alias can be booted and used within GRUB. Within the old ofdisk, this was not
possible, unless it was the original boot device. All devices behind a SAS
or SCSI parent can be found. Within the old ofdisk, finding these disks
relied on there being an alias defined. The alias requirement is not
necessary with this new driver. It can also find devices behind a parent
after they have been hot-plugged. This is something that is not possible
with the old ofdisk driver.
The old ofdisk driver also incorrectly assumes that the device pointing to by a
device alias is in its true canonical form. This assumption is never made with
this new driver.
Another issue solved with this driver is that it properly caches the ihandle
for all open devices. The old ofdisk tries to do this by caching the last
opened ihandle. However this does not work properly because the layer above
does not use a consistent device name for the same disk when calling into the
driver. This is because the upper layer uses the bootpath value returned within
/chosen, other times it uses the device alias, and other times it uses the
value within grub.cfg. It does not have a way to figure out that these devices
are the same disk. This is not a problem with this new driver.
Due to the way GRUB repeatedly opens and closes the same disk. Caching the
ihandle is important on SPARC. Without caching, some SAS devices can take
15 - 20 minutes to get to the GRUB menu. This ihandle caching is not possible
without correctly having the canonical disk name.
When available, this driver also tries to use the deblocker #blocks and
a way of determining the disk size.
Finally and probably most importantly, this new driver is also capable of
seeing all partitions on a GPT disk. With the old driver, the GPT
partition table can not be read and only the first partition on the disk
can be seen.
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Read from NULL pointer canon in function grub_machine_get_bootlocation().
Function grub_ieee1275_canonicalise_devname() may return NULL.
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Split up some of the functionality in grub_machine_get_bootlocation into
grub_ieee1275_get_boot_dev. This will allow for code reuse in a follow on
patch.
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
IEEE Std 1275-1994 Standard for Boot (Initialization Configuration)
Firmware: Core Requirements and Practices
3.8.3 deblocker support package
Any package that uses the "deblocker" support package must define
the following method, which the deblocker uses as a low-level
interface to the device
block-size ( -- block-len ) Return "granularity" for accesses to this
device.
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
IEEE 1275-1994 Standard for Boot (Initialization Configuration)
Firmware: Core Requirements and Practices
E.3.2.2 Bus-specific methods for bus nodes
A package implementing the scsi-2 device type shall implement the
following bus-specific method:
no-data-command ( cmd-addr -- error? )
Executes a simple SCSI command, automatically retrying under
certain conditions. cmd-addr is the address of a 6-byte command buffer
containing an SCSI command that does not have a data transfer phase.
Executes the command, retrying indefinitely with the same retry criteria
as retry-command.
error? is nonzero if an error occurred, zero otherwise.
NOTE no-data-command is a convenience function. It provides
no capabilities that are not present in retry-command, but for
those commands that meet its restrictions, it is easier to use.
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
IEEE 1275-1994 Standard for Boot (Initialization Configuration)
Firmware: Core Requirements and Practices
E.3.2.2 Bus-specific methods for bus nodes
A package implementing the scsi-2 device type shall implement the
following bus-specific method:
set-address ( unit# target# -- )
Sets the SCSI target number (0x0..0xf) and unit number (0..7) to which
subsequent commands apply.
This function is for devices with #address-cells == 2
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Convert physical address to text unit-string.
Convert phys.lo ... phys-high, the numerical representation, to unit-string,
the text string representation of a physical address within the address
space defined by this device node. The number of cells in the list
phys.lo ... phys.hi is determined by the value of the #address-cells property
of this node.
This function is for devices with #address-cells == 4
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
decode-unit ( addr len -- phys.lo ... phys.hi )
Convert text unit-string to physical address.
Convert unit-string, the text string representation, to phys.lo ... phys.hi,
the numerical representation of a physical address within the address space
defined by this device node. The number of cells in the list
phys.lo ... phys.hi is determined by the value of the #address-cells
property of this node.
This function is for devices with #address-cells == 4
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Prevent buffer over-read in grub_machine_mmap_iterate. This was
causing phys_base from being calculated properly. This then
caused the wrong value to be placed in ramdisk_image within
struct linux_hdrs. Which prevented the ramdisk from loading on
boot.
Newer SPARC systems contain more than 8 available memory entries.
For example on a T5-8 with 2TB of memory, the memory layout could
look like this:
T5-8 Memory
reg 00000000 30000000 0000003f b0000000
00000800 00000000 00000040 00000000
00001000 00000000 00000040 00000000
00001800 00000000 00000040 00000000
00002000 00000000 00000040 00000000
00002800 00000000 00000040 00000000
00003000 00000000 00000040 00000000
00003800 00000000 00000040 00000000
available 00003800 00000000 0000003f ffcae000
00003000 00000000 00000040 00000000
00002800 00000000 00000040 00000000
00002000 00000000 00000040 00000000
00001800 00000000 00000040 00000000
00001000 00000000 00000040 00000000
00000800 00000000 00000040 00000000
00000000 70000000 0000003f 70000000
00000000 6eef8000 00000000 00002000
00000000 30400000 00000000 3eaf6000
name memory
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
is_qemu is not being set lead to disabling of feature like
GRUB_IEEE1275_FLAG_HAS_CURSORONOFF. This resulted in cursor not being
displayed during the grub-menu edit.
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
It enables net boot even when there is no bootp/dhcp server.
* grub-core/net/drivers/ieee1275/ofnet.c: Add grub_ieee1275_parse_bootpath and
call it at grub_ieee1275_net_config_real.
* grub-core/kern/ieee1275/init.c: Add bootpath to grub_ieee1275_net_config.
* include/grub/ieee1275/ieee1275.h: Likewise.
GRUB_IEEE1275_FLAG_CURSORONOFF_ANSI_BROKEN on mac.
* grub-core/term/ieee1275/console.c (grub_console_init_lately): Use
ieee1275-nocursor if GRUB_IEEE1275_FLAG_CURSORONOFF_ANSI_BROKEN is set.
* grub-core/term/terminfo.c (grub_terminfo_set_current): Add new type
ieee1275-nocursor.
* include/grub/ieee1275/ieee1275.h (grub_ieee1275_flag): New value
GRUB_IEEE1275_FLAG_CURSORONOFF_ANSI_BROKEN.
* include/grub/ieee1275/ieee1275.h (grub_ieee1275_flag): New enum values
GRUB_IEEE1275_FLAG_NO_OFNET_SUFFIX and
GRUB_IEEE1275_FLAG_VIRT_TO_REAL_BROKEN.
* grub-core/net/drivers/efi/efinet.c (grub_efinet_findcards): Use
txbufsize.
* grub-core/kern/ieee1275/cmain.c (grub_ieee1275_find_options): Use
compatible property to check for macs. Set
GRUB_IEEE1275_FLAG_NO_OFNET_SUFFIX and
GRUB_IEEE1275_FLAG_VIRT_TO_REAL_BROKEN on macs.
* grub-core/net/drivers/ieee1275/ofnet.c (card_open): Don't add suffix
if GRUB_IEEE1275_FLAG_NO_OFNET_SUFFIX is set.
(send_card_buffer): Use txbuf.
(grub_ofnet_findcards): Allocate txbuf. Simplify code flow and move
nested function out of the parent while on it.
GRUB_IEEE1275_FLAG_NO_TREE_SCANNING_FOR_DISKS is set.
* grub-core/kern/ieee1275/cmain.c (grub_ieee1275_find_options): Set
GRUB_IEEE1275_FLAG_NO_TREE_SCANNING_FOR_DISKS on IBM hardware.
* include/grub/ieee1275/ieee1275.h (grub_ieee1275_flag): New enum value
GRUB_IEEE1275_FLAG_NO_TREE_SCANNING_FOR_DISKS.
* grub-core/Makefile.core.def (kernel): Use kern/ieee1275/init.c
instead of kern/sparc64/ieee1275/init.c.
* grub-core/kern/ieee1275/cmain.c (grub_ieee1275_find_options)
[__sparc__]: Set GRUB_IEEE1275_FLAG_NO_PARTITION_0.
* grub-core/kern/ieee1275/init.c [__sparc__]: Include
grub/machine/kernel.h.
(grub_ieee1275_original_stack) [__sparc__]: New variable.
(grub_claim_heap) [__sparc__]: Use sparc version.
(grub_machine_init): Moved args parsing to
(grub_parse_cmdline): ...this.
* grub-core/kern/sparc64/ieee1275/init.c: Removed.
* include/grub/offsets.h (GRUB_KERNEL_SPARC64_IEEE1275_MOD_GAP):
New definition.
(GRUB_KERNEL_SPARC64_IEEE1275_MOD_ALIGN): Likewise.
Move BOOTP to separate file.
* grub-core/Makefile.core.def (net): Add net/bootp.c.
* grub-core/net/net.c: Move all BOOTP functions to
* grub-core/net/bootp.c: ... here.
Use frame interface on PXE.
* grub-core/Makefile.core.def (pxecmd): Removed.
(pxe): Use net/drivers/i386/pc/pxe.c rather than net/i386/pc/pxe.c.
* grub-core/commands/i386/pc/pxecmd.c: Removed.
* grub-core/i386/pc/pxe.c: Moved from here ...
* grub-core/net/i386/pc/pxe.c: ... here. Rewritten.
* grub-core/net/net.c (grub_net_open_real): Handle old pxe syntax.
* include/grub/i386/pc/pxe.h (grub_pxe_unload): Removed.
EFI network support.
* grub-core/Makefile.core.def (efinet): New module.
* grub-core/disk/efi/efidisk.c (compare_device_paths): Moved from
here...
* grub-core/kern/efi/efi.c (grub_efi_compare_device_paths): ... here.
All users updated.
* grub-core/kern/efi/init.c (grub_efi_net_config): New variable.
(grub_machine_get_bootlocation): Call grub_efi_net_config if needed.
* grub-core/kern/x86_64/efi/callwrap.S (efi_wrap_7): New function.
* grub-core/net/drivers/efi/efinet.c: New file.
* include/grub/efi/efi.h (grub_efi_compare_device_paths): New proto.
(grub_efi_net_config): New extern var.
Various cleanups and bugfixes.
* grub-core/disk/efi/efidisk.c (grub_efidisk_open): Fix off-by-one
error.
(grub_efidisk_get_device_name): Unify similar codepaths. Accept whole
disk declared as partition.
* grub-core/disk/ieee1275/ofdisk.c (grub_ofdisk_open): Fix memory
leak on failure.
* grub-core/kern/dl.c (grub_dl_load_file): Fix memory leak.
* grub-core/kern/mm.c (grub_debug_malloc): Don't use unsupported %zx.
(grub_debug_zalloc): Likewise.
(grub_debug_realloc): Likewise.
(grub_debug_memalign): Likewise.
* grub-core/net/arp.c (grub_net_arp_receive): IPv4 is 4-byte wide.
Check that target is IPv4.
* grub-core/net/drivers/ieee1275/ofnet.c (grub_ofnet_findcards): Use
local-mac-address as fallback.
* grub-core/net/ethernet.c (grub_net_recv_ethernet_packet): Prevent
memory leak.
* grub-core/net/ip.c (ipchksum): Rename to ...
(grub_net_ip_chksum): ... this. All users updated.
(grub_net_recv_ip_packets): Special handling for DHCP.
* util/grub-mkimage.c (generate_image): Zero-out aout header.
Unify prefix handling
* grub-core/kern/efi/init.c (grub_efi_set_prefix): Revamped into ...
(grub_machine_get_bootlocation): ... this.
* grub-core/kern/emu/main.c (grub_machine_set_prefix): Revamped into ...
(grub_machine_get_bootlocation): ... this.
(grub_prefix): New variable.
(prefix): Removed.
(root_dev): New variable.
(dir): Likewise.
(main): Use new variables.
* grub-core/kern/i386/coreboot/init.c (grub_machine_set_prefix):
Revamped into ...
(grub_machine_get_bootlocation): ... this.
* grub-core/kern/i386/efi/init.c (grub_machine_set_prefix): Removed.
* grub-core/kern/i386/pc/init.c (make_install_device): Revamped into ...
(grub_machine_get_bootlocation): ... this.
(grub_machine_set_prefix): Removed.
* grub-core/kern/ia64/efi/init.c (grub_machine_set_prefix): Removed.
* grub-core/kern/ieee1275/init.c (grub_machine_set_prefix):
Revamped into ...
(grub_machine_get_bootlocation): ... this.
* grub-core/kern/main.c (grub_set_root_dev): Revamped into ...
(grub_set_prefix_and_root): ... this. All users updated.
* grub-core/kern/mips/init.c (grub_machine_set_prefix):
Revamped into ...
(grub_machine_get_bootlocation): ... this.
* include/grub/kernel.h (grub_machine_set_prefix): Removed.
(grub_machine_get_bootlocation): New proto.
* include/grub/i386/pc/kernel.h (grub_pc_net_config): New var.
Less intrusive and more reliable seek on network implementation.
* grub-core/kern/file.c (grub_file_net_seek): Removed.
(grub_file_seek): Don't call grub_file_net_seek.
* grub-core/net/net.c (grub_net_fs_read): Renamed to ...
(grub_net_fs_read_real): .. this.
(grub_net_seek_real): Use net->offset.
(grub_net_fs_read): Seek if necessary.
Unify IEEE1275 netwotk config with the other platforms.
* grub-core/kern/ieee1275/init.c (grub_ieee1275_net_config):
New variable.
(grub_machine_get_bootlocation): Support network.
* grub-core/kern/ieee1275/openfw.c (grub_ieee1275_parse_args):
Support type and device parsing.
(grub_ieee1275_get_device_type): New function.
* grub-core/net/drivers/ieee1275/ofnet.c (grub_getbootp_real): Revamped
into ...
(grub_ieee1275_net_config_real): ... this.
(grub_ofnet_probecards): Removed.
* grub-core/Makefile.am (KERNEL_HEADER_FILES): Remove ofnet.h.
* include/grub/ieee1275/ofnet.h: Removed.
* include/grub/ieee1275/ieee1275.h (grub_ieee1275_net_config): NEw
extern var.
(grub_ieee1275_get_device_type): New function.
Unify network device closing across platforms and make more robust.
* grub-core/kern/ieee1275/init.c (grub_machine_fini): Don't call
grub_grubnet_fini.
* grub-core/net/ethernet.c (send_ethernet_packet): Open card if it isn't
already.
* grub-core/net/net.c (grub_net_network_level_interface_register):
Update num_ifaces.
(grub_net_card_unregister): Close all interfaces.
(receive_packets): Don't poll if no iterfaces are registered.
Open if necessary.
(grub_net_fini_hw): New function.
(grub_net_restore_hw): Likewise.
(fini_hnd): New variable.
(GRUB_MOD_INIT): Register preboot hook.
(GRUB_MOD_FINI): Run and unregister preboot hook.
Poll network cards when idle.
* grub-core/kern/term.c (grub_net_poll_cards_idle): New variable.
(grub_checkkey): Call grub_net_poll_cards_idle if it's not NULL.
* grub-core/net/net.c (receive_packets): Save last poll time.
(grub_net_poll_cards_idle_real): New function.
(GRUB_MOD_INIT): Register grub_net_poll_cards_idle.
(GRUB_MOD_FINI): Unregister grub_net_poll_cards_idle.
* include/grub/kernel.h (grub_poll_cards_idle): New extern variable.
Rename ofnet interfaces.
* grub-core/net/drivers/ieee1275/ofnet.c (find_alias): New function.
(grub_ofnet_findcards): Use ofnet_%s names.
* util/grub-mknetdir.in: Support for EFI and IEEE1275.
Cleanup socket opening.
* grub-core/net/net.c (grub_net_fs_open): Rewritten.
(grub_net_fs_close): Likewise.
(grub_net_fs_read_real): Use eof member.
* include/grub/net/udp.h (+grub_net_udp_open): New proto.
(+grub_net_udp_close): New inline function.
* include/grub/net/tftp.h: Moved to the top of ...
* grub-core/net/tftp.c: ... here.
* include/grub/net/ip.h: Moved mostly to the top of ...
* grub-core/net/ip.c: ... here.
* include/grub/net/ethernet.h: Moved mostly to the top of ...
* grub-core/net/ethernet.c: ... here.
* grub-core/kern/device.c (grub_device_close): Free device->net->server.
* grub-core/commands/probe.c (grub_cmd_probe): Use protocol name for
FS name.
* include/grub/net/ip.h (ipv4_ini): Removed.
(ipv4_fini): Likewise.
* include/grub/net/ip.h (grub_net_recv_ip_packets): New proto.
(grub_net_send_ip_packets): Likewise.
