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2273 commits

Author SHA1 Message Date
Leif Lindholm
1901a159bd make GRUB_LINUX_MAGIC_SIGNATURE architecture-specific
Rename GRUB_LINUX_MAGIC_SIGNATURE GRUB_LINUX_I386_MAGIC_SIGNATURE,
to be usable in code that supports more than one image type.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-09-21 12:16:25 -04:00
Leif Lindholm
f0ffa15cd5 Make arch-specific linux.h include guards architecture unique
Replace uses of GRUB_LINUX_MACHINE_HEADER and GRUB_LINUX_CPU_HEADER
with GRUB_<arch>_LINUX_HEADER include guards to prevent issues when
including more than one of them.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-09-21 12:16:25 -04:00
Leif Lindholm
e5ae7a2704 arm64/efi: move EFI_PAGE definitions to efi/memory.h
The EFI page definitions and macros are generic and should not be confined
to arm64 headers - so move to efi/memory.h.
Also add EFI_PAGE_SIZE macro.

Update loader sources to reflect new header location.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-09-21 12:16:25 -04:00
Daniel Kiper
5826e32c37 chainloader: Fix wrong break condition (must be AND not, OR)
The definition of bpb's num_total_sectors_16 and num_total_sectors_32
is that either the 16-bit field is non-zero and is used (in which case
eg mkfs.fat sets the 32-bit field to zero), or it is zero and the
32-bit field is used. Therefore, a BPB is invalid only if *both*
fields are zero; having one field as zero and the other as non-zero is
the case to be expected. (Indeed, according to Microsoft's specification
one of the fields *must* be zero, and the other non-zero.)

This affects all users of grub_chainloader_patch_bpb which are in
chainloader.c, freedos.c, and ntldr.c

Some descriptions of the semantics of these two fields:

https://www.win.tue.nl/~aeb/linux/fs/fat/fat-1.html

  The old 2-byte fields "total number of sectors" and "number of
  sectors per FAT" are now zero; this information is now found in
  the new 4-byte fields.

(Here given in the FAT32 EBPB section but the total sectors 16/32 bit
fields semantic is true of FAT12 and FAT16 too.)

https://wiki.osdev.org/FAT#BPB_.28BIOS_Parameter_Block.29

  19 | 2 | The total sectors in the logical volume. If this value is 0,
  it means there are more than 65535 sectors in the volume, and the actual
  count is stored in "Large Sectors (bytes 32-35).

  32 | 4 | Large amount of sector on media. This field is set if there
  are more than 65535 sectors in the volume.

(Doesn't specify what the "large" field is set to when unused, but as
mentioned mkfs.fat sets it to zero then.)

https://technet.microsoft.com/en-us/library/cc976796.aspx

  0x13 | WORD | 0x0000 |
  Small Sectors . The number of sectors on the volume represented in 16
  bits (< 65,536). For volumes larger than 65,536 sectors, this field
  has a value of zero and the Large Sectors field is used instead.

  0x20 | DWORD | 0x01F03E00 |
  Large Sectors . If the value of the Small Sectors field is zero, this
  field contains the total number of sectors in the FAT16 volume. If the
  value of the Small Sectors field is not zero, the value of this field
  is zero.

https://staff.washington.edu/dittrich/misc/fatgen103.pdf page 10

  BPB_TotSec16 | 19 | 2 |
  This field is the old 16-bit total count of sectors on the volume.
  This count includes the count of all sectors in all four regions of the
  volume. This field can be 0; if it is 0, then BPB_TotSec32 must be
  non-zero. For FAT32 volumes, this field must be 0. For FAT12 and
  FAT16 volumes, this field contains the sector count, and
  BPB_TotSec32 is 0 if the total sector count “fits” (is less than
  0x10000).

  BPB_TotSec32 | 32 | 4 |
  This field is the new 32-bit total count of sectors on the volume.
  This count includes the count of all sectors in all four regions of the
  volume. This field can be 0; if it is 0, then BPB_TotSec16 must be
  non-zero. For FAT32 volumes, this field must be non-zero. For
  FAT12/FAT16 volumes, this field contains the sector count if
  BPB_TotSec16 is 0 (count is greater than or equal to 0x10000).

(This specifies that an unused BPB_TotSec32 field is set to zero.)

By the way fix offsets in include/grub/fat.h.

Tested with lDebug booted in qemu via grub2's
FreeDOS direct loading support, refer to
https://bitbucket.org/ecm/ldosboot + https://bitbucket.org/ecm/ldebug

Signed-off-by: C. Masloch <pushbx@38.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-09-21 12:16:25 -04:00
Steve McIntyre
0b6bd057c0 Make grub-install check for errors from efibootmgr
Code is currently ignoring errors from efibootmgr, giving users
clearly bogus output like:

        Setting up grub-efi-amd64 (2.02~beta3-4) ...
        Installing for x86_64-efi platform.
        Could not delete variable: No space left on device
        Could not prepare Boot variable: No space left on device
        Installation finished. No error reported.

and then potentially unbootable systems. If efibootmgr fails, grub-install
should know that and report it!

We've been using similar patch in Debian now for some time, with no ill effects.

Signed-off-by: Steve McIntyre <93sam@debian.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-09-21 12:16:25 -04:00
Alexander Graf
8838ac368e 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>
2020-09-21 12:16:25 -04:00
Alexander Graf
e224ee31c0 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>
2020-09-21 12:02:37 -04:00
Vladimir Serbinenko
46159d35d3 Fix compilation for x86_64-efi. 2020-09-21 12:02:37 -04:00
Vladimir Serbinenko
219603c2e6 Add a file missing in multiboot2 commit. 2020-09-21 12:02:37 -04:00
Vladimir Serbinenko
69c4c683b4 qemu, coreboot, multiboot: Change linking address to 0x9000.
It's common for distros to use a defective ld which links at 0x9000. Instead
of fighting it, just move link target to 0x9000.
2020-09-21 12:02:37 -04:00
Vladimir Serbinenko
2074525ba5 arc: Do not create spurious variable grub_arc_memory_type_t. 2020-09-21 12:02:37 -04:00
Vladimir Serbinenko
f6c8225f8c multiboot fixup 2020-09-21 12:02:37 -04:00
Vladimir Serbinenko
ec4630c2b5 multiboot: disentangle multiboot and multiboot2.
Previously we had multiboot and multiboot2 declaring the same symbols.
This can potentially lead to aliasing and strange behaviours when e.g.
module instead of module2 is used with multiboot2.

Bug: #51137
2020-09-21 12:02:37 -04:00
Pete Batard
5ba09fb415 core: use GRUB_TERM_ definitions when handling term characters
* Also use hex value for GRUB_TERM_ESC as '\e' is not in the C standard and is not understood by some compilers
2020-09-21 12:02:37 -04:00
Leif Lindholm
793b90c851 efi: Add GRUB_PE32_MAGIC definition
Add a generic GRUB_PE32_MAGIC definition for the PE 'MZ' tag and delete
the existing one in arm64/linux.h.

Update arm64 Linux loader to use this new definition.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
2020-09-21 12:02:37 -04:00
Leif Lindholm
30f13fbfa6 efi: move fdt helper library
There is nothing ARM64 (or even ARM) specific about the efi fdt helper
library, which is used for locating or overriding a firmware-provided
devicetree in a UEFI system - so move it to loader/efi for reuse.

Move the fdtload.h include file to grub/efi and update path to
efi/fdtload.h in source code referring to it.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
2020-09-21 12:02:37 -04:00
Vladimir Serbinenko
6825a1d3f1 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.
2020-09-21 12:02:37 -04:00
Leif Lindholm
22619f1593 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>
2020-09-21 11:32:45 -04:00
phcoder
a4d4008588 cache: Fix compilation for ppc, sparc and arm64 2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
6ff34a6a81 at_keyboard: Fix falco chromebook case.
EC is slow, so we need few delays for it to toggle the bits correctly.

Command to enable clock and keyboard were not sent.
2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
366dee1f7f arm_coreboot: Add Chromebook keyboard driver. 2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
aad5863e98 rk3288_spi: Add SPI driver 2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
eaa55f4a23 fdtbus: Add ability to send/receive messages on parent busses. 2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
25a88d14dd arm_coreboot: Support EHCI. 2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
d4529d5d02 arm_coreboot: Support DMA.
This is needed to support USB and some other busses.
2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
5e1a343a37 arm_coreboot: Support loading linux images. 2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
f09c41cfa9 arm_coreboot: Support grub-mkstandalone. 2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
7948b1a398 at_keyboard: Split protocol from controller code.
On vexpress controller is different but protocol is the same, so reuse the
code.
2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
1895c3806b Add support for device-tree-based drivers. 2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
aa7585d04b arm-coreboot: Start new port. 2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
9ec5094213 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.
2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
25cd7a7df9 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.
2020-09-21 11:32:45 -04:00
Vladimir Serbinenko
587d1e78c9 mkimage: Pass layout to mkimage_generate_elfXX rather than some fields.
This allows easier extension of this function without having too long of
arguments list.
2020-09-21 11:32:45 -04:00
Paulo Flabiano Smorigo
5696d56d33 Add Virtual LAN support.
This patch adds support for virtual LAN (VLAN) tagging. VLAN tagging allows
multiple VLANs in a bridged network to share the same physical network link
but maintain isolation:

http://en.wikipedia.org/wiki/IEEE_802.1Q

* grub-core/net/ethernet.c: Add check, get, and set vlan tag id.
* grub-core/net/drivers/ieee1275/ofnet.c: Get vlan tag id from bootargs.
* grub-core/net/arp.c: Add check.
* grub-core/net/ip.c: Likewise.
* include/grub/net/arp.h: Add vlantag attribute.
* include/grub/net/ip.h: Likewise.
2020-09-21 11:32:45 -04:00
Michael Chang
721b4677ab Fix packed-not-aligned error on GCC 8
When building with GCC 8, there are several errors regarding packed-not-aligned.

./include/grub/gpt_partition.h:79:1: error: alignment 1 of ‘struct grub_gpt_partentry’ is less than 8 [-Werror=packed-not-aligned]

This patch fixes the build error by cleaning up the ambiguity of placing
aligned structure in a packed one. In "struct grub_btrfs_time" and "struct
grub_gpt_part_type", the aligned attribute seems to be superfluous, and also
has to be packed, to ensure the structure is bit-to-bit mapped to the format
laid on disk. I think we could blame to copy and paste error here for the
mistake. In "struct efi_variable", we have to use grub_efi_packed_guid_t, as
the name suggests. :)

Signed-off-by: Michael Chang <mchang@suse.com>
Tested-by: Michael Chang <mchang@suse.com>
Tested-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
(cherry picked from commit 563b1da6e6)
2019-10-24 16:59:37 +02:00
Dennis Chen
c3bd5d1b36 Prototype fixing for (*hash_log_extend_event)
According to the section 6.6.1 'Prototype' in 'TCG EFI Protocol Spec',
the 3rd parameter of the (*hash_log_extend_event) should be
'EFI_PHYSICAL_ADDRESS' which is 'grub_efi_physical_address_t' in the
real implementation. So this patch drop the pointer mark '*' from this
prototype.

Signed-off-by: Dennis Chen <dennis.chen@arm.com>
2017-11-08 09:13:00 +00:00
David Michael
f89e1cf69a Merge branch 'gnu' into sync 2017-04-27 12:05:22 -07:00
Vladimir Serbinenko
34fe0b5901 arm64: Add support for GOT and PCREL32 relocations. 2017-02-01 21:46:19 +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
Benjamin Gilbert
490d38ffc0 Fix missing VERITY_HASH_OFFSET on amd64 2017-01-30 13:25:51 -08:00
Vladimir Serbinenko
6371e9c104 grub-module-verifier: Ignore all_video emptiness on xen.
It's intentional that it's empty when no video modules
are available.
2017-01-30 00:13:41 +00:00
Geoff Levand
dc2eaa5855 loader: Add arm64 verity
Signed-off-by: Geoff Levand <geoff@infradead.org>
2017-01-25 14:54:46 -08:00
Geoff Levand
c9bd29e124 loader: verity-hash.h fixups
o Add some comments.
o Change image buffer type to (const void *).
o Add new macro VERITY_CMDLINE_LENGTH.

Signed-off-by: Geoff Levand <geoff@infradead.org>
2017-01-25 14:54:46 -08:00
Geoff Levand
57fca7d1a3 loader: Move verity-hash.h to include
Signed-off-by: Geoff Levand <geoff@infradead.org>
2017-01-25 14:54:46 -08:00
David Michael
e576eb0cbc Merge remote-tracking branch 'upstream/master' 2017-01-23 14:02:45 -08:00
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
e1b099fb69 arm efi: Use fdt from firmware when available
If EFI is nice enough to pass us an FDT using configuration tables on 32bit
ARM, we should really try and make use of it.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2016-11-10 13:21:00 +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
Juergen Gross
0de3eeb623 xen: add capability to load p2m list outside of kernel mapping
Modern pvops linux kernels support a p2m list not covered by the
kernel mapping. This capability is flagged by an elf-note specifying
the virtual address the kernel is expecting the p2m list to be mapped
to.

In case the elf-note is set by the kernel don't place the p2m list
into the kernel mapping, but map it to the given address. This will
allow to support domains with larger memory, as the kernel mapping is
limited to 2GB and a domain with huge memory in the TB range will have
a p2m list larger than this.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2016-10-27 16:22:06 +02:00
Juergen Gross
b67a95ecad xen: modify page table construction
Modify the page table construction to allow multiple virtual regions
to be mapped. This is done as preparation for removing the p2m list
from the initial kernel mapping in order to support huge pv domains.

This allows a cleaner approach for mapping the relocator page by
using this capability.

The interface to the assembler level of the relocator has to be changed
in order to be able to process multiple page table areas.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2016-10-27 16:22:06 +02:00