>>> On 02.09.15 at 11:25, <zhaoshengl...@huawei.com> wrote: > > On 2015/9/2 16:41, Jan Beulich wrote: >>>>> Shannon Zhao <zhaoshengl...@huawei.com> 09/02/15 8:03 AM >>> >>> >There are some descriptions in Documentation/arm64/booting.txt of Linux: >>> > >>> >"The Image must be placed text_offset bytes from a 2MB aligned base >>> >address near the start of usable system RAM and called there. Memory >>> >below that base address is currently unusable by Linux, and therefore it >>> >is strongly recommended that this location is the start of system RAM. >>> >At least image_size bytes from the start of the image must be free for >>> >use by the kernel." >>> > >>>From this, it says "Memory below that base address is currently unusable >>> >by Linux". So if we put these tables below Dom0 RAM address and even >>> >describe these regions as RAM, the Linux could not use them. >> May I remind you that a design should not take specific guest OS >> implementation details (which even for that one OS may change over time) >> as the basis for decisions? > > Yeah, but I think it needs to evaluate the design to check if it's > feasible and make people believe this design could work by giving an > example. Otherwise, if the design could not work well with some guest > OSes or it needs to do a lot of changes, maybe we could choose another > way to do it with no or less changes.
I don't mind (and indeed welcome) validating the design against existing OSes, but what you said above sounded like far more than that. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
