diff options
Diffstat (limited to 'hw/pc.c')
| -rw-r--r-- | hw/pc.c | 49 |
1 files changed, 27 insertions, 22 deletions
@@ -152,8 +152,25 @@ static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd) rtc_set_memory(s, info_ofs + 8, sectors); } +/* convert boot_device letter to something recognizable by the bios */ +static int boot_device2nibble(char boot_device) +{ + switch(boot_device) { + case 'a': + case 'b': + return 0x01; /* floppy boot */ + case 'c': + return 0x02; /* hard drive boot */ + case 'd': + return 0x03; /* CD-ROM boot */ + case 'n': + return 0x04; /* Network boot */ + } + return 0; +} + /* hd_table must contain 4 block drivers */ -static void cmos_init(int ram_size, int boot_device, BlockDriverState **hd_table) +static void cmos_init(int ram_size, const char *boot_device, BlockDriverState **hd_table) { RTCState *s = rtc_state; int val; @@ -184,24 +201,12 @@ static void cmos_init(int ram_size, int boot_device, BlockDriverState **hd_table rtc_set_memory(s, 0x34, val); rtc_set_memory(s, 0x35, val >> 8); - switch(boot_device) { - case 'a': - case 'b': - rtc_set_memory(s, 0x3d, 0x01); /* floppy boot */ - if (!fd_bootchk) - rtc_set_memory(s, 0x38, 0x01); /* disable signature check */ - break; - default: - case 'c': - rtc_set_memory(s, 0x3d, 0x02); /* hard drive boot */ - break; - case 'd': - rtc_set_memory(s, 0x3d, 0x03); /* CD-ROM boot */ - break; - case 'n': - rtc_set_memory(s, 0x3d, 0x04); /* Network boot */ - break; - } + /* set boot devices, and disable floppy signature check if requested */ + rtc_set_memory(s, 0x3d, + boot_device2nibble(boot_device[1]) << 4 | + boot_device2nibble(boot_device[0]) ); + rtc_set_memory(s, 0x38, + boot_device2nibble(boot_device[2]) << 4 | (fd_bootchk ? 0x0 : 0x1)); /* floppy type */ @@ -663,7 +668,7 @@ static void pc_init_ne2k_isa(NICInfo *nd, qemu_irq *pic) } /* PC hardware initialisation */ -static void pc_init1(int ram_size, int vga_ram_size, int boot_device, +static void pc_init1(int ram_size, int vga_ram_size, const char *boot_device, DisplayState *ds, const char **fd_filename, int snapshot, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, @@ -940,7 +945,7 @@ static void pc_init1(int ram_size, int vga_ram_size, int boot_device, #endif } -static void pc_init_pci(int ram_size, int vga_ram_size, int boot_device, +static void pc_init_pci(int ram_size, int vga_ram_size, const char *boot_device, DisplayState *ds, const char **fd_filename, int snapshot, const char *kernel_filename, @@ -954,7 +959,7 @@ static void pc_init_pci(int ram_size, int vga_ram_size, int boot_device, initrd_filename, 1); } -static void pc_init_isa(int ram_size, int vga_ram_size, int boot_device, +static void pc_init_isa(int ram_size, int vga_ram_size, const char *boot_device, DisplayState *ds, const char **fd_filename, int snapshot, const char *kernel_filename, |