On 20.08.2024 10:20, Juergen Gross wrote: > When booting as a Xen PV dom0 the memory layout of the dom0 is > modified to match that of the host, as this requires less changes in > the kernel for supporting Xen. > > There are some cases, though, which are problematic, as it is the Xen > hypervisor selecting the kernel's load address plus some other data, > which might conflict with the host's memory map. > > These conflicts are detected at boot time and result in a boot error. > In order to support handling at least some of these conflicts in > future, introduce a generic helper function which will later gain the > ability to adapt the memory layout when possible. > > Add the missing check for the xen_start_info area. > > Signed-off-by: Juergen Gross <jgr...@suse.com> > Tested-by: Marek Marczykowski-Górecki <marma...@invisiblethingslab.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com> However, since you mention the start_info area it may be worth adding half a sentence to the description also mentioning why the hypervisor allocated stack page doesn't need checking. In fact this may want to extend to initrd and phys-mach map as well, to cover everything Xen sets up on behalf of the kernel. Jan
