On 08.12.2020 10:07, Julien Grall wrote: > On 08/12/2020 05:21, Penny Zheng wrote: >> --- /dev/null >> +++ b/docs/designs/1_1_direct-map.md >> @@ -0,0 +1,87 @@ >> +# Preface >> + >> +The document is an early draft for direct-map memory map >> +(`guest physical == physical`) of domUs. And right now, it constrains to ARM > > s/constrains/limited/ > > Aside the interface to the user, you should be able to re-use the same > code on x86. Note that because the memory layout on x86 is fixed (always > starting at 0), you would only be able to have only one direct-mapped > domain.
Even one seems challenging, if it's truly meant to have all of the domain's memory direct-mapped: The use of space in the first Mb is different between host and guest. Jan
