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authorSunil V L <sunilvl@ventanamicro.com>2022-10-04 14:53:51 +0530
committerAlistair Francis <alistair.francis@wdc.com>2022-10-14 14:29:50 +1000
commita5b0249dfef6d39d345ed7c9620a04bdb1c2ffb0 (patch)
tree966c30581b5023a7f83f48d78bbf73ba0350e49d /disas
parent90e26984eede1f4303572a39ee328f4c23b276a0 (diff)
hw/riscv: virt: Enable booting S-mode firmware from pflash
To boot S-mode firmware payload like EDK2 from persistent flash storage, qemu needs to pass the flash address as the next_addr in fw_dynamic_info to the opensbi. When both -kernel and -pflash options are provided in command line, the kernel (and initrd if -initrd) will be copied to fw_cfg table. The S-mode FW will load the kernel/initrd from fw_cfg table. If only pflash is given but not -kernel, then it is the job of of the S-mode firmware to locate and load the kernel. In either case, update the kernel_entry with the flash address so that the opensbi can jump to the entry point of the S-mode firmware. Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20221004092351.18209-4-sunilvl@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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