Commit graph

824 commits

Author SHA1 Message Date
Leif Lindholm
8ec18d1a4c efi: Add central copy of grub_efi_find_mmap_size
There are several implementations of this function in the tree.
Add a central version in grub-core/efi/mm.c.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-07-25 14:18:11 +02:00
Eric Snowberg
5ceb55b7a0 ieee1275: NULL pointer dereference in grub_machine_get_bootlocation()
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>
2018-03-26 15:03:36 +02:00
Eric Snowberg
e2faabacff ieee1275: split up grub_machine_get_bootlocation
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>
2018-03-14 13:24:40 +01:00
Eric Snowberg
599efeb622 sparc64: #blocks64 disk node method
Return the 64bit number of blocks of storage associated with the device or
instance. Where a "block" is a unit of storage consisting of the number of
bytes returned by the package's "block-size" method. If the size cannot be
determined, or if the number of blocks exceeds the range return -1.

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-03-05 15:26:36 +01:00
Eric Snowberg
ab4c93cb4b sparc64: #blocks disk node method
Return the number of blocks of storage associated with the device or
instance. Where a "block" is a unit of storage consisting of the number
of bytes returned by the package's "block-size" method. If the size cannot
be determined, the #blocks method returns the maximum unsigned integer
(which, because of Open Firmware's assumption of two's complement arithmetic,
is equivalent to the signed number -1). If the number of blocks exceeds
the range of an unsigned number, return 0 to alert the caller to try
the #blocks64 command.

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-03-05 15:12:35 +01:00
Eric Snowberg
ad6d8f5063 ieee1275: block-size deblocker support method
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>
2018-03-05 15:12:35 +01:00
Daniel Kiper
c422bb6019 ieee1275: no-data-command bus specific method
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>
2018-03-05 15:11:18 +01:00
Eric Snowberg
f02037afe3 ieee1275: set-address bus specific method
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>
2018-03-05 15:08:19 +01:00
Eric Snowberg
820c64e4c0 ieee1275: encode-unit command for 4 addr cell devs
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>
2018-03-05 15:00:12 +01:00
Eric Snowberg
6003eb2fea ieee1275: decode-unit command for 4 addr cell devs
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>
2018-03-05 15:00:09 +01:00
H.J. Lu
842c390469 x86-64: Treat R_X86_64_PLT32 as R_X86_64_PC32
Starting from binutils commit bd7ab16b4537788ad53521c45469a1bdae84ad4a:

https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=bd7ab16b4537788ad53521c45469a1bdae84ad4a

x86-64 assembler generates R_X86_64_PLT32, instead of R_X86_64_PC32, for
32-bit PC-relative branches.  Grub2 should treat R_X86_64_PLT32 as
R_X86_64_PC32.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-02-23 22:25:30 +01:00
David E. Box
446794de8d tsc: Change default tsc calibration method to pmtimer on EFI systems
On efi systems, make pmtimer based tsc calibration the default over the
pit. This prevents Grub from hanging on Intel SoC systems that power gate
the pit.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2017-10-06 16:58:55 +02:00
Alexander Graf
92bfc33db9 efi: Free malloc regions on exit
When we exit grub, we don't free all the memory that we allocated earlier
for our heap region. This can cause problems with setups where you try
to descend the boot order using "exit" entries, such as PXE -> HD boot
scenarios.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2017-09-07 23:35:01 +02:00
Alexander Graf
0ba90a7f01 efi: Move grub_reboot() into kernel
The reboot function calls machine_fini() and then reboots the system.
Currently it lives in lib/ which means it gets compiled into the
reboot module which lives on the heap.

In a following patch, I want to free the heap on machine_fini()
though, so we would free the memory that the code is running in. That
obviously breaks with smarter UEFI implementations.

So this patch moves it into the core. That way we ensure that all
code running after machine_fini() in the UEFI case is running from
memory that got allocated (and gets deallocated) by the UEFI core.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2017-09-07 23:29:31 +02:00
Leif Lindholm
f826330683 efi: change heap allocation type to GRUB_EFI_LOADER_CODE
With upcoming changes to EDK2, allocations of type EFI_LOADER_DATA may
not return regions with execute ability. Since modules are loaded onto
the heap, change the heap allocation type to GRUB_EFI_LOADER_CODE in
order to permit execution on systems with this feature enabled.

Closes: 50420

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-08-07 19:03:34 +02:00
Vladimir Serbinenko
4bc909bf89 Remove grub_efi_allocate_pages.
grub_efi_allocate_pages Essentially does 2 unrelated things:
* Allocate at fixed address.
* Allocate at any address.

To switch between 2 different functions it uses address == 0 as magic
value which is wrong as 0 is a perfectly valid fixed adress to allocate at.
2017-08-07 18:33:29 +02:00
Leif Lindholm
dd5fde2df8 efi: refactor grub_efi_allocate_pages
Expose a new function, grub_efi_allocate_pages_real(), making it possible
to specify allocation type and memory type as supported by the UEFI
AllocatePages boot service.

Make grub_efi_allocate_pages() a consumer of the new function,
maintaining its old functionality.

Also delete some left-around #if 1/#else blocks in the affected
functions.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-08-07 18:23:39 +02:00
Vladimir Serbinenko
c6eaa982d1 Missing parts of previous commit 2017-05-09 09:02:15 +02:00
Vladimir Serbinenko
b0b1b81a11 rk3288_spi: Add SPI driver 2017-05-09 08:44:23 +02:00
Vladimir Serbinenko
265292f2b0 arm_coreboot: Support DMA.
This is needed to support USB and some other busses.
2017-05-08 22:06:04 +02:00
Vladimir Serbinenko
848bed9d92 arm_coreboot: Support keyboard for vexpress. 2017-05-08 21:42:37 +02:00
Vladimir Serbinenko
5a865b3786 arm-coreboot: Support for vexpress timer. 2017-05-08 21:26:36 +02:00
Vladimir Serbinenko
fcbb723d4b Add support for device-tree-based drivers. 2017-05-08 21:19:59 +02:00
Vladimir Serbinenko
24e37a8852 arm-coreboot: Start new port. 2017-05-08 20:53:28 +02:00
Vladimir Serbinenko
461bfab7b7 coreboot: Split parts that are platform-independent.
We currently assume that coreboot is always i386, it's no longer the case,
so split i386-coreboot parts from generic coreboot code.
2017-05-08 19:10:24 +02:00
Vladimir Serbinenko
d08c968514 Refactor arm-uboot code to make it genereic.
arm-coreboot startup code can be very similar to arm-uboot but current code has
U-Boot specific references. So split U-Boot part from generic part.
2017-05-08 17:47:57 +02:00
Vladimir Serbinenko
dc6e1b5af8 strtoull: Fix behaviour on chars between '9' and 'a'.
Reported by: Aaron Miller <aaronmiller@fb.com>
2017-05-03 12:59:58 +02:00
Vladimir Serbinenko
d454509bb8 Fix remaining cases of gcc 7 fallthrough warning.
They are all intended, so just add the relevant comment.
2017-04-12 01:42:38 +00:00
Andrei Borzenkov
892dfbe113 efi: strip off final NULL from File Path in grub_efi_get_filename
UEFI 2.6 9.3.6.4 File Path Media Device Path says that Path Name is
"A NULL-terminated Path string including directory and file names".

Strip final NULL from Path Name in each File Path node when constructing
full path. To be on safe side, strip all of them.

Fixes failure chainloading grub from grub, when loaded grub truncates
image path and does not find its grub.cfg.

https://bugzilla.opensuse.org/show_bug.cgi?id=1026344

This was triggered by commit ce95549cc54b5d6f494608a7c390dba3aab4fba7;
before it we built Path Name without trailing NULL, and apparently all
other bootloaders use single File Path node, thus not exposing this bug.
2017-02-25 08:39:38 +03:00
Vladimir Serbinenko
c96cfac167 Fix mingw compilation. 2017-02-03 13:01:34 +01:00
Vladimir Serbinenko
42e24b6006 Fix thumb compilation with clang.
According to EABI only STT_FUNC has convention of lowest bit indicating
execution mode. R_THM_{JUMP,CALL}* relocations are assumed to be pointing
to thumb mode unless they use STT_FUNC.
2017-02-02 00:59:49 +01:00
Vladimir Serbinenko
34fe0b5901 arm64: Add support for GOT and PCREL32 relocations. 2017-02-01 21:46:19 +01:00
Vladimir Serbinenko
ea20dd2b22 ia64: Fix iterator for relocation entries.
Don't assume relocation entry size and use sh_entsize properly.
2017-02-01 20:10:26 +01:00
Vladimir Serbinenko
3d173955f0 arm: Fix trampoline generation.
We used the wrong pointer in this case. It worked only by accident.
2017-02-01 15:58:36 +01:00
Vladimir Serbinenko
a134ef1ab9 ia64: Add support for R_IA64_GPREL64I.
Recent GCC generates those relocations, so we need to support them.
2017-01-31 12:39:01 +01:00
Vladimir Serbinenko
43dbf83aa2 Ensure that grub_reboot doesn't return on emu.
Use grub_fatal if longjmp fails.

grub_reboot is marked as noreturn so return would cause
a crash.
2017-01-27 20:10:23 +00:00
Michael Chang
562c406763 Fix fwpath in efi netboot
The path returned by grub_efi_net_config has already been stripped for the
directory part extracted from cached bootp packet. We should just return the
result to avoild it be stripped again.

It fixed the problem that grub.efi as NBP image always looking for grub.cfg and
platform directory in upper folder rather than current one it gets loaded while
$prefix is empty. The behavior is inconsistent with other architecture and how
we would expect empty $prefix going to be in general.

The only exception to the general rule of empty $prefix is that when loaded
from platform directory itself, the platform part is stripped thus upper folder
is used for looking up files. It meets the case for how grub-mknetdir lay out
the files under tftp root directory, but also hide away this issue to be
identified as it appears to be just works.

Also fix possible memory leak by moving grub_efi_get_filename() call after
grub_efi_net_config().
2016-12-22 22:37:32 +03:00
Alexander Graf
0d2345774d efi: Move fdt helper into own file
We only support FDT files with EFI on arm and arm64 systems, not
on x86. So move the helper that finds a prepopulated FDT UUID
into its own file and only build it for architectures where it
also gets called.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2016-11-24 10:09:24 +01:00
Alexander Graf
fbca374105 arm64: Move firmware fdt search into global function
Searching for a device tree that EFI passes to us via configuration tables
is nothing architecture specific. Move it into generic code.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2016-11-10 13:20:56 +01:00
Pete Batard
4e0f8f66e3 Add missing va_end() to xasprintf() in grub-emu. 2016-08-13 16:36:01 +03:00
Vladimir Serbinenko
86ef66d977 arm-uboot: Make self-relocatable to allow loading at any address 2016-02-27 13:40:52 +01:00
Vladimir Serbinenko
94c56a4c65 ieee1275: fix signed comparison 2016-02-24 18:37:22 +01:00
Vladimir Serbinenko
be4e9d20a5 Refresh before abort
This ensures that abort message is actually visible to the user.
2016-02-22 19:46:55 +01:00
Eric Snowberg
bc220962e3 ieee1275: prevent buffer over-read
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>
2016-02-22 10:01:31 +03:00
Vladimir Serbinenko
59ec05bcf8 mm: Avoid integer overflow. 2016-02-17 18:09:44 +01:00
Vladimir Serbinenko
25492a0f04 Add wbinvd around bios call.
Via C3 has problems with cache coherency when transitioning between the modes,
so flush it around bios calls.
2016-02-14 08:34:10 +01:00
Vladimir Serbinenko
4598cafa7d arm64: Use cpu timer for timekeeping. 2016-02-12 12:43:02 +01:00
Vladimir Serbinenko
e5c9300191 printf: Fix and test %% behaviour in presence of subsequenbt args. 2016-02-12 12:33:41 +01:00
Vladimir Serbinenko
d9a3bfead8 Split pmtimer wait and tsc measurement from pmtimer tsc calibration. 2016-02-12 11:40:51 +01:00
Vladimir Serbinenko
1933d37371 Make grub_cpu_is_tsc_supported generally available. 2016-02-12 11:38:51 +01:00