diff options
Diffstat (limited to 'hw/display/vga.c')
| -rw-r--r-- | hw/display/vga.c | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/hw/display/vga.c b/hw/display/vga.c index 7a5fdff649..37557c3442 100644 --- a/hw/display/vga.c +++ b/hw/display/vga.c @@ -26,7 +26,9 @@ #include "qemu/units.h" #include "sysemu/reset.h" #include "qapi/error.h" +#include "hw/core/cpu.h" #include "hw/display/vga.h" +#include "hw/i386/x86.h" #include "hw/pci/pci.h" #include "vga_int.h" #include "vga_regs.h" @@ -2244,11 +2246,8 @@ bool vga_common_init(VGACommonState *s, Object *obj, Error **errp) * into a device attribute set by the machine/platform to remove * all target endian dependencies from this file. */ -#if TARGET_BIG_ENDIAN - s->default_endian_fb = true; -#else - s->default_endian_fb = false; -#endif + s->default_endian_fb = target_words_bigendian(); + vga_dirty_log_start(s); return true; @@ -2263,11 +2262,15 @@ static const MemoryRegionPortio vga_portio_list[] = { PORTIO_END_OF_LIST(), }; -static const MemoryRegionPortio vbe_portio_list[] = { +static const MemoryRegionPortio vbe_portio_list_x86[] = { { 0, 1, 2, .read = vbe_ioport_read_index, .write = vbe_ioport_write_index }, -# ifdef TARGET_I386 { 1, 1, 2, .read = vbe_ioport_read_data, .write = vbe_ioport_write_data }, -# endif + { 2, 1, 2, .read = vbe_ioport_read_data, .write = vbe_ioport_write_data }, + PORTIO_END_OF_LIST(), +}; + +static const MemoryRegionPortio vbe_portio_list_no_x86[] = { + { 0, 1, 2, .read = vbe_ioport_read_index, .write = vbe_ioport_write_index }, { 2, 1, 2, .read = vbe_ioport_read_data, .write = vbe_ioport_write_data }, PORTIO_END_OF_LIST(), }; @@ -2278,9 +2281,19 @@ MemoryRegion *vga_init_io(VGACommonState *s, Object *obj, const MemoryRegionPortio **vbe_ports) { MemoryRegion *vga_mem; + MachineState *ms = MACHINE(qdev_get_machine()); + + /* + * We unfortunately need two VBE lists since non-x86 machines might + * not be able to do 16-bit accesses at unaligned addresses (0x1cf) + */ + if (object_dynamic_cast(OBJECT(ms), TYPE_X86_MACHINE)) { + *vbe_ports = vbe_portio_list_x86; + } else { + *vbe_ports = vbe_portio_list_no_x86; + } *vga_ports = vga_portio_list; - *vbe_ports = vbe_portio_list; vga_mem = g_malloc(sizeof(*vga_mem)); memory_region_init_io(vga_mem, obj, &vga_mem_ops, s, |