On Fri, Sep 18, 2015 at 09:28:57PM +0200, Marc Marí wrote:
On Fri, 18 Sep 2015 14:40:30 -0400 "Kevin O'Connor" email@example.com wrote:
On Fri, Sep 18, 2015 at 10:59:15AM +0200, Marc Marí wrote:
Using "genroms/linuxboot.bin" works for testing, but I think a new bootorder id (eg, "vmlinux") will need to be defined between QEMU and SeaBIOS. I don't think it would be good to overload the meaning of the "genroms/" prefix.
I was looking at it, but I don't see a "good" way to put it.
If you want to boot from fw_cfg through linuxboot.S, you prefer to boot using fw_cfg DMA, which is faster. And adding a new entry would mean adding a new type (?) which would be added in the same cases as linuxboot.S. It looks a lot of work for a thing that is repeated.
Would the QEMU patch below work?
--- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1012,8 +1012,9 @@ static void load_linux(PCMachineState *pcms, fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, setup, setup_size);
option_rom[nb_option_roms].name = "linuxboot.bin"; - option_rom[nb_option_roms].bootindex = 0; + option_rom[nb_option_roms].bootindex = 1; nb_option_roms++; + add_boot_device_path(0, NULL, "vmlinux"); }
#define NE2000_NB_MAX 6