Re: [PATCH v3 4/7] hw/core: implement a guest-loader to support static hypervisor guests

[Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>]

On 3/3/21 6:36 PM, Alex Bennée wrote:
> Hypervisors, especially type-1 ones, need the firmware/bootcode to put
> their initial guest somewhere in memory and pass the information to it
> via platform data. The guest-loader is modelled after the generic
> loader for exactly this sort of purpose:
> 
>   $QEMU $ARGS  -kernel ~/xen.git/xen/xen \
>     -append "dom0_mem=1G,max:1G loglvl=all guest_loglvl=all" \
>     -device 
> guest-loader,addr=0x42000000,kernel=Image,bootargs="root=/dev/sda2 ro 
> console=hvc0 earlyprintk=xen" \
>     -device guest-loader,addr=0x47000000,initrd=rootfs.cpio
> 
> Signed-off-by: Alex Bennée <alex.bennee@xxxxxxxxxx>
> Message-Id: <20201105175153.30489-5-alex.bennee@xxxxxxxxxx>
> Message-Id: <20210211171945.18313-5-alex.bennee@xxxxxxxxxx>
> ---
>  hw/core/guest-loader.h |  34 ++++++++++
>  hw/core/guest-loader.c | 145 +++++++++++++++++++++++++++++++++++++++++
>  MAINTAINERS            |   5 ++
>  hw/core/meson.build    |   2 +
>  4 files changed, 186 insertions(+)
>  create mode 100644 hw/core/guest-loader.h
>  create mode 100644 hw/core/guest-loader.c

Missing documentation, otherwise:
Reviewed-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>