dann frazier [Thu, 18 Jan 2018 18:57:26 +0000 (11:57 -0700)]
Keep the native terminal active when enabling gfxterm
grub-mkconfig will set GRUB_TERMINAL_OUTPUT to "gfxterm" unless the user
has overridden it. On EFI systems, this will stop output from going to the
default "console" terminal. When the EFI fw console is configured to output to
both serial and video, this will cause GRUB to only display on video - while
continuing to accept input from both video and serial.
Instead of switching from "console" to "gfxterm", let's output to both.
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Julien Grall [Wed, 29 Nov 2017 17:08:12 +0000 (17:08 +0000)]
arm64/xen: Add missing #address-cells and #size-cells properties
The properties #address-cells and #size-cells are used to know the
number of cells for ranges provided by "regs". If they don't exist, the
value are resp. 2 and 1.
Currently, when multiboot nodes are created it is assumed that #address-cells
and #size-cells are exactly 2. However, they are never set by GRUB and
will result to later failure when the device-tree is generated by GRUB
or contain different values.
To prevent this failure, create the both properties in the chosen nodes.
Signed-off-by: Julien Grall <julien.grall@linaro.org> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Jordan Glover [Wed, 29 Nov 2017 13:35:37 +0000 (08:35 -0500)]
grub-mkconfig: Fix detecting .sig files as system images
grub-mkconfig detects detached RSA signatures for kernel images used for
signature checking as valid images and adds them to grub.cfg as separate
menu entries. This patch adds .sig extension to common blacklist.
Signed-off-by: Jordan Glover <Golden_Miller83@protonmail.ch> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Eric Snowberg [Mon, 13 Nov 2017 16:27:28 +0000 (08:27 -0800)]
ls: prevent double open
Prevent a double open. This can cause problems with some ieee1275
devices, causing the system to hang. The double open can occur
as follows:
grub_ls_list_files (char *dirname, int longlist, int all, int human)
dev = grub_device_open (device_name);
dev remains open while:
grub_normal_print_device_info (device_name);
dev = grub_device_open (name);
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com> Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
David E. Box [Fri, 15 Sep 2017 22:37:05 +0000 (15:37 -0700)]
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>
Alexander Graf [Thu, 31 Aug 2017 14:40:19 +0000 (16:40 +0200)]
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>
Alexander Graf [Thu, 31 Aug 2017 14:40:18 +0000 (16:40 +0200)]
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>
Use grub-file to figure out whether multiboot2 should be used for Xen.gz
The multiboot2 is much more preferable than multiboot. Especiall
if booting under EFI where multiboot does not have the functionality
to pass ImageHandler.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
The 20_linux_xen is run under a shell and any exits from within it:
(For example on x86):
+ /usr/bin/grub2-file --is-arm64-efi /boot/xen-4.9.0.gz
[root@tst063 grub]# echo $?
1
will result in 20_linux_xen exiting without continuing
and also causing grub2-mkconfig to stop processing.
As in:
[root@tst063 grub]# ./grub-mkconfig | tail
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.13.0-0.rc5.git1.1.fc27.x86_64
Found initrd image: /boot/initramfs-4.13.0-0.rc5.git1.1.fc27.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-ec082ee24aea41b9b16aca52a6d10cc2
Found initrd image: /boot/initramfs-0-rescue-ec082ee24aea41b9b16aca52a6d10cc2.img
echo 'Loading Linux 0-rescue-ec082ee24aea41b9b16aca52a6d10cc2 ...'
linux /vmlinuz-0-rescue-ec082ee24aea41b9b16aca52a6d10cc2 root=/dev/mapper/fedora_tst063-root ro single
echo 'Loading initial ramdisk ...'
initrd /initramfs-0-rescue-ec082ee24aea41b9b16aca52a6d10cc2.img
}
}
### END /usr/local/etc/grub.d/10_linux ###
### BEGIN /usr/local/etc/grub.d/20_linux_xen ###
root@tst063 grub]#
And no more.
This patch wraps the invocation of grub-file to be a in subshell
and to process the return value in a conditional. That fixes
the issue.
RH-BZ 1486002: grub2-mkconfig does not work if xen.gz is installed.
CC: Fu Wei <fu.wei@linaro.org> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
The `grub_util_exec_redirect_all` helper function can be used to
spawn an executable and redirect its output to some files. After calling
`fork()`, the parent will wait for the child to terminate with
`waitpid()` while the child prepares its file descriptors, environment
and finally calls `execvp()`. If something in the children's setup
fails, it will stop by calling `exit(127)`.
Calling `exit()` will cause any function registered via `atexit()` to be
executed, which is usually the wrong thing to do in a child. And
actually, one can easily observe faulty behaviour on musl-based systems
without modprobe(8) installed: executing `grub-install --help` will call
`grub_util_exec_redirect_all` with "modprobe", which obviously fails if
modprobe(8) is not installed. Due to the child now exiting and invoking
the `atexit()` handlers, it will clean up some data structures of the
parent and cause it to be deadlocked in the `waitpid()` syscall.
The issue can easily be fixed by calling `_exit(127)` instead, which is
especially designed to be called when the atexit-handlers should not be
executed.
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.
Leif Lindholm [Thu, 3 Aug 2017 10:04:32 +0000 (11:04 +0100)]
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.
Leif Lindholm [Thu, 3 Aug 2017 10:04:24 +0000 (11:04 +0100)]
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.
Leif Lindholm [Thu, 3 Aug 2017 10:04:23 +0000 (11:04 +0100)]
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.
Pali Rohár [Thu, 22 Jun 2017 12:42:16 +0000 (14:42 +0200)]
* grub-core/fs/udf.c: Add support for UUID
Use same algorithm as in libblkid from util-linux v2.30.
1. Take first 16 bytes from UTF-8 encoded string of VolumeSetIdentifier
2. If all bytes are hexadecimal digits, convert to lowercase and use as UUID
3. If first 8 bytes are not all hexadecimal digits, convert those 8 bytes
to their hexadecimal representation, resulting in 16 bytes for UUID
4. Otherwise, compose UUID from two parts:
1. part: converted first 8 bytes (which are hexadecimal digits) to lowercase
2. part: encoded following 4 bytes to their hexadecimal representation (16 bytes)
So UUID would always have 16 hexadecimal digits in lowercase variant.
According to UDF specification, first 16 Unicode characters of
VolumeSetIdentifier should be unique value and first 8 should be
hexadecimal characters.
In most cases all 16 characters are hexadecimal, but e.g. MS Windows
format.exe set only first 8 as hexadecimal and remaining as fixed
(non-unique) which violates specification.
Pali Rohár [Thu, 22 Jun 2017 12:33:17 +0000 (14:33 +0200)]
udf: Fix reading label, lvd.ident is dstring
UDF dstring has stored length in the last byte of buffer. Therefore last
byte is not part of recorded characters. And empty string in dstring is
encoded as empty buffer, including first byte (compression id).
Eric Biggers [Thu, 29 Jun 2017 13:27:49 +0000 (13:27 +0000)]
Allow GRUB to mount ext2/3/4 filesystems that have the encryption feature.
On such a filesystem, inodes may have EXT4_ENCRYPT_FLAG set.
For a regular file, this means its contents are encrypted; for a
directory, this means the filenames in its directory entries are
encrypted; and for a symlink, this means its target is encrypted. Since
GRUB cannot decrypt encrypted contents or filenames, just issue an error
if it would need to do so. This is sufficient to allow unencrypted boot
files to co-exist with encrypted files elsewhere on the filesystem.
(Note that encrypted regular files and symlinks will not normally be
encountered outside an encrypted directory; however, it's possible via
hard links, so they still need to be handled.)
Tested by booting from an ext4 /boot partition on which I had run
'tune2fs -O encrypt'. I also verified that the expected error messages
are printed when trying to access encrypted directories, files, and
symlinks from the GRUB command line. Also ran 'sudo ./grub-fs-tester
ext4_encrypt'; note that this requires e2fsprogs v1.43+ and Linux v4.1+.
Eric Snowberg [Thu, 18 May 2017 23:10:22 +0000 (17:10 -0600)]
sparc64: Don't use devspec to determine the OBP path
Don't use devspec to determine the OBP path on SPARC hardware. Within all
versions of Linux on SPARC, the devspec returns one of three values:
"none", "vnet-port", or "vdisk". Unlike on PPC, none of these values
are useful in determining the OBP path.
Before this patch grub-ofpathname always returned the wrong value
for a virtual disk. For example:
% grub-ofpathname /dev/vdiskc2
vdisk/disk@2:b
After this patch it now returns the correct value:
xen_boot: Remove obsolete module type distinctions.
Also bases on the module loading mechanism of Xen code: 488c2a8 docs/arm64: clarify the documention for loading XSM support 67831c4 docs/arm64: update the documentation for loading XSM support ca32012 xen/arm64: check XSM Magic from the second unknown module.
Signed-off-by: Fu Wei <fu.wei@linaro.org> Reviewed-by: Julien Grall <julien.grall@arm.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Fu Wei [Sun, 14 May 2017 07:43:46 +0000 (15:43 +0800)]
util/grub.d/20_linux_xen.in: Add xen_boot command support for aarch64
This patch adds the support of xen_boot command for aarch64:
xen_hypervisor
xen_module
These two commands are only for aarch64, since it has its own protocol and
commands to boot xen hypervisor and Dom0, but not multiboot.
For other architectures, they are still using multiboot and module
commands.
Signed-off-by: Fu Wei <fu.wei@linaro.org> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Fu Wei [Sun, 14 May 2017 07:43:45 +0000 (15:43 +0800)]
arm64: Add "--nounzip" option support in xen_module command
This patch adds "--nounzip" option support in order to
be compatible with the module command of multiboot on other architecture,
by this way we can simplify grub-mkconfig support code.
This patch also allow us to use zip compressed module(like Linux kernel
for Dom0).
Signed-off-by: Fu Wei <fu.wei@linaro.org> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Julien Grall [Fri, 19 Feb 2016 16:28:52 +0000 (16:28 +0000)]
arm64/xen_boot: Fix Xen boot using GRUB2 on AARCH64
Xen is currently crashing because of malformed compatible property for
the boot module. This is because the property string is not
null-terminated as requested by the ePAR spec.
Signed-off-by: Julien Grall <julien.grall@linaro.org> Tested-by: Fu Wei <fu.wei@linaro.org> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Eric Snowberg [Fri, 12 May 2017 01:42:23 +0000 (18:42 -0700)]
sparc64: Close cdboot ihandle
The ihandle is left open with a cd-core image. This will cause a delay
booting grub from a virtual cdrom in a LDOM. It will also cause problems
as Linux boots, since it expects the ihandle to be closed during init.
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.
i386, x86_64, ppc: fix switch fallthrough cases with GCC7
In util/getroot and efidisk slightly modify exitsing comment to mostly
retain it but still make GCC7 compliant with respect to fall through
annotation.
In grub-core/lib/xzembed/xz_dec_lzma2.c it adds same comments as
upstream.
In grub-core/tests/setjmp_tets.c declare functions as "noreturn" to
suppress GCC7 warning.
In grub-core/gnulib/regexec.c use new __attribute__, because existing
annotation is not recognized by GCC7 parser (which requires that comment
immediately precedes case statement).