Jon Doron <ari...@gmail.com> writes:
> The PhyMemMode gdb extension command was missing from the gdb.rst > document. > > Signed-off-by: Jon Doron <ari...@gmail.com> Queued to docs/next, thanks. > --- > docs/system/gdb.rst | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/docs/system/gdb.rst b/docs/system/gdb.rst > index a40145fcf8..abda961e2b 100644 > --- a/docs/system/gdb.rst > +++ b/docs/system/gdb.rst > @@ -87,3 +87,23 @@ three commands you can query and set the single step > behavior: > (gdb) maintenance packet Qqemu.sstep=0x5 > sending: "qemu.sstep=0x5" > received: "OK" > + > + > +Another feature that QEMU gdbstub provides is to toggle the memory GDB > +works with, by default GDB will show the current process memory respecting > +the virtual address translation. > + > +If you want to examine/change the physical memory you can set the gdbstub > +to work with the physical memory rather with the virtual one. > + > +The memory mode can be checked by sending the following command: > + > +``maintenance packet qqemu.PhyMemMode`` > + This will return either 0 or 1, 1 indicates you are currently in the > + physical memory mode. > + > +``maintenance packet Qqemu.PhyMemMode:1`` > + This will change the memory mode to physical memory. > + > +``maintenance packet Qqemu.PhyMemMode:0`` > + This will change it back to normal memory mode. -- Alex Bennée
