Hi Cedric,
> Subject: Re: [PATCH v2 07/10] hw/arm/aspeed: Add support for loading
> vbootrom image via "-bios"
>
> On 4/10/25 04:38, Jamin Lin wrote:
> > Introduce "aspeed_load_vbootrom()" to support loading a virtual boot
> > ROM image into the vbootrom memory region, using the "-bios"
> command-line option.
> >
> > Signed-off-by: Jamin Lin <jamin_...@aspeedtech.com>
> > ---
> > hw/arm/aspeed.c | 32 ++++++++++++++++++++++++++++++++
> > 1 file changed, 32 insertions(+)
> >
> > diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c index
> > b70a120e62..2811868c1a 100644
> > --- a/hw/arm/aspeed.c
> > +++ b/hw/arm/aspeed.c
> > @@ -27,6 +27,7 @@
> > #include "system/reset.h"
> > #include "hw/loader.h"
> > #include "qemu/error-report.h"
> > +#include "qemu/datadir.h"
> > #include "qemu/units.h"
> > #include "hw/qdev-clock.h"
> > #include "system/system.h"
> > @@ -305,6 +306,32 @@ static void
> aspeed_install_boot_rom(AspeedMachineState *bmc, BlockBackend *blk,
> > rom_size, &error_abort);
> > }
> >
> > +/*
> > + * This function locates the vbootrom image file specified via the
> > +command line
> > + * using the -bios option. It loads the specified image into the
> > +vbootrom
> > + * memory region and handles errors if the file cannot be found or loaded.
> > + */
> > +static void aspeed_load_vbootrom(MachineState *machine, uint64_t
> > +rom_size)
>
> please add an 'Error **' parameter and let the caller decide to exit.
>
Will add.
> > +{
> > + AspeedMachineState *bmc = ASPEED_MACHINE(machine);
> > + const char *bios_name = machine->firmware;
> > + g_autofree char *filename = NULL;
> > + AspeedSoCState *soc = bmc->soc;
> > + int ret;
> > +
> > + filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
>
> What if the user didn't provide any -bios command line option ?
>
Will update to support both vbootrom and loader.
> > + if (!filename) {
> > + error_report("Could not find vbootrom image '%s'", bios_name);
> > + exit(1);
> > + }
> > +
> > + ret = load_image_mr(filename, &soc->vbootrom);
> > + if (ret < 0) {
> > + error_report("Failed to load vbootrom image '%s'", filename);
> > + exit(1);
> > + }
> > +}
> > +
> > void aspeed_board_init_flashes(AspeedSMCState *s, const char
> *flashtype,
> > unsigned int count, int
> unit0)
> > {
> > @@ -483,6 +510,11 @@ static void aspeed_machine_init(MachineState
> *machine)
> > }
> > }
> >
> > + if (amc->vbootrom) {
> > + rom_size = memory_region_size(&bmc->soc->vbootrom);> +
> aspeed_load_vbootrom(machine, rom_size);
> > + }
> > +
>
> Even without a vbootrom file, the machine could boot with '-device loader'
> options. We should preserve this way of booting an ast2700-evb machine.
>
Will support both loader and vbootrom.
Thanks for review and suggestion.
Jamin
>
> Thanks,
>
> C.
>
>
>
>
> > arm_load_kernel(ARM_CPU(first_cpu), machine,
> &aspeed_board_binfo);
> > }
> >
