Update EFI code to completely ignore the EFI comnandline when booted from GRUB.
Previusly it was parsed of EFI boot specific options, but these aren't used
when booted from GRUB.
Don't do EFI console or video configuration when booted by GRUB. The EFI boot
code does some console and video initialization to support native EFI boot from
the EFI boot manager or EFI shell. This initlization should not be done when
booted using GRUB.
Update EFI documentation to indicate that it describes EFI native boot, and
does not apply at all when Xen is booted using GRUB.
Signed-off-by: Roy Franz <roy.franz@linaro.org>
Currently Xen can only read the configuration file if it is in ASCII
format. If it is in CHAR16 or CHAR8 it will choke. One way to verify
this is to use 'file':
xen.cfg: ASCII text
xen-char16.cfg: Little-endian UTF-16 Unicode text, with CRLF, CR line terminators
The latter is no good.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
The arm64 EFI boot support added a new 'dtb' value to the configuration file.
Update the documentation to describe this and how the coniguration file is not
used when GRUB loads the modules. Updates 'ucode' description to indicate that
it is x86 only.
Signed-off-by: Roy Franz <roy.franz@linaro.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Namely when making use the CONFIG_XEN_COMPAT_* options in the legacy
Linux kernels, newer kernels may not be compatible with older
hypervisors, so trying to boot such a combination makes little sense.
Booting older kernels on newer hypervisors, however, has to always
work.
With the way xen.efi looks for its configuration file, allowing
individual configuration files to refer only to compatible kernels,
and referring from an older- to a newer-hypervisor one (the kernels
of which will, as said, necessarily be compatible with the older
hypervisor) allows to greatly reduce redundancy at least in
development environments where one frequently wants multiple
hypervisors and kernles to be installed in parallel.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
After commit 25594:ad08cd8e7097, EFI Xen binaries were installed to
/efi instead of /usr/lib64/efi. This patch restores the previous
behaviour established in commit 23645:638f31a30b6c.
Signed-off-by: Matt Wilson <msw@amazon.com>
Reported-by: Olaf Hering <olaf@aepfle.de>
Committed-by: Jan Beulich <jbeulich@suse.com>
Ian Campbell