The Xen hypervisor supports starting a dom0 with large memory (up to
the TB range) by not including the initrd and p2m list in the initial
kernel mapping. Especially the p2m list can grow larger than the
available virtual space in the initial mapping.
The started kernel is indicating the support o
Do the p2m list allocation of the to be loaded kernel in a separate
function. This will allow doing the p2m list allocation at different
times of the boot preparations depending on the features the kernel
is supporting.
While at this remove superfluous setting of first_p2m_pfn and
nr_p2m_frames as
The loader for xen paravirtualized environment is using lots of global
variables. Reduce the number by making them either local or by putting
them into a single state structure.
Signed-off-by: Juergen Gross
Reviewed-by: Daniel Kiper
---
grub-core/loader/i386/xen.c | 259 +++-
When loading a Xen pv-kernel avoid memory leaks in case of errors.
Signed-off-by: Juergen Gross
---
grub-core/loader/i386/xen.c| 2 +-
grub-core/loader/i386/xen_fileXX.c | 17 +++--
2 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/grub-core/loader/i386/xen.c b
Do the allocation of special pages (start info, console and xenbus
ring buffers) in a separate function. This will allow to do the
allocation at different times of the boot preparations depending on
the features the kernel is supporting.
Signed-off-by: Juergen Gross
Reviewed-by: Daniel Kiper
---
Various features and parameters of a pv-kernel are specified via
elf notes in the kernel image. Those notes are part of the interface
between the Xen hypervisor and the kernel.
Instead of using num,bers in the code when interpreting the elf notes
make use of the header supplied by Xen for that pur
Modern pvops linux kernels support an initrd not covered by the initial
mapping. This capability is flagged by an elf-note.
In case the elf-note is set by the kernel don't place the initrd into
the initial mapping. This will allow to load larger initrds and/or
support domains with larger memory, a
The loader for xen paravirtualized environment isn't callable multiple
times as it won't free any memory in case of failure.
Call grub_relocator_unload() as other modules do it before allocating
a new relocator or when unloading the module.
Signed-off-by: Juergen Gross
---
V4: split patch into t
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
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
Do the allocation of page tables in a separate function. This will
allow to do the allocation at different times of the boot preparations
depending on the features the kernel is supporting.
Signed-off-by: Juergen Gross
Reviewed-by: Daniel Kiper
---
grub-core/loader/i386/xen.c | 91 +
Get actual version of include/xen/xen.h from the Xen repository in
order to be able to use constants defined there.
Signed-off-by: Juergen Gross
Reviewed-by: Daniel Kiper
---
include/xen/arch-x86/xen-x86_32.h | 22 +++
include/xen/arch-x86/xen-x86_64.h | 8 +--
include/xen/xen.h
29.01.2016 17:26, Thomas Huth пишет:
> When running grub in a VGA console of a KVM pseries guest on PowerPC,
> you can see the cursor sweeping over the whole line when entering a
> character in editor mode. This is visible because grub always refreshes
> the whole line when entering a character in
15.02.2016 21:53, Eric Snowberg пишет:
> 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
> boo
19.02.2016 19:18, Leif Lindholm пишет:
> Some disk types have allocation requirements beyond normal grub_malloc.
> Add a function pointer to grub_disk_t and a wrapper function in
> kern/disk.c making use of that function if available, to enable these
> disk drivers to implement their own malloc.
T
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