| Message ID | 20200709141327.14631-4-alex.bennee@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | misc rc0 fixes (docs, plugins, docker) | expand |
On 7/9/20 4:13 PM, Alex Bennée wrote: > From: Jon Doron <arilou@gmail.com> > > The PhyMemMode gdb extension command was missing from the gdb.rst > document. > > Signed-off-by: Jon Doron <arilou@gmail.com> > Signed-off-by: Alex Bennée <alex.bennee@linaro.org> > Message-Id: <20200601171609.1665397-1-arilou@gmail.com> > --- > docs/system/gdb.rst | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/docs/system/gdb.rst b/docs/system/gdb.rst > index a40145fcf849..abda961e2b49 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, Maybe start a new sentence? Otherwise looks good: Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> > 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. >
diff --git a/docs/system/gdb.rst b/docs/system/gdb.rst index a40145fcf849..abda961e2b49 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.