diff options
| -rw-r--r-- | hw/debugexit.c | 75 | ||||
| -rw-r--r-- | hw/i386/Makefile.objs | 2 |
2 files changed, 76 insertions, 1 deletions
diff --git a/hw/debugexit.c b/hw/debugexit.c new file mode 100644 index 0000000000..90642eb37f --- /dev/null +++ b/hw/debugexit.c @@ -0,0 +1,75 @@ +/* + * debug exit port emulation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 or + * (at your option) any later version. + */ + +#include "hw.h" +#include "isa.h" + +#define TYPE_ISA_DEBUG_EXIT_DEVICE "isa-debug-exit" +#define ISA_DEBUG_EXIT_DEVICE(obj) \ + OBJECT_CHECK(ISADebugExitState, (obj), TYPE_ISA_DEBUG_EXIT_DEVICE) + +typedef struct ISADebugExitState { + ISADevice parent_obj; + + uint32_t iobase; + uint32_t iosize; + MemoryRegion io; +} ISADebugExitState; + +static void debug_exit_write(void *opaque, hwaddr addr, uint64_t val, + unsigned width) +{ + exit((val << 1) | 1); +} + +static const MemoryRegionOps debug_exit_ops = { + .write = debug_exit_write, + .valid.min_access_size = 1, + .valid.max_access_size = 4, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +static int debug_exit_initfn(ISADevice *dev) +{ + ISADebugExitState *isa = ISA_DEBUG_EXIT_DEVICE(dev); + + memory_region_init_io(&isa->io, &debug_exit_ops, isa, + TYPE_ISA_DEBUG_EXIT_DEVICE, isa->iosize); + memory_region_add_subregion(isa_address_space_io(dev), + isa->iobase, &isa->io); + return 0; +} + +static Property debug_exit_properties[] = { + DEFINE_PROP_HEX32("iobase", ISADebugExitState, iobase, 0x501), + DEFINE_PROP_HEX32("iosize", ISADebugExitState, iosize, 0x02), + DEFINE_PROP_END_OF_LIST(), +}; + +static void debug_exit_class_initfn(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + ISADeviceClass *ic = ISA_DEVICE_CLASS(klass); + ic->init = debug_exit_initfn; + dc->props = debug_exit_properties; +} + +static TypeInfo debug_exit_info = { + .name = TYPE_ISA_DEBUG_EXIT_DEVICE, + .parent = TYPE_ISA_DEVICE, + .instance_size = sizeof(ISADebugExitState), + .class_init = debug_exit_class_initfn, +}; + +static void debug_exit_register_types(void) +{ + type_register_static(&debug_exit_info); +} + +type_init(debug_exit_register_types) diff --git a/hw/i386/Makefile.objs b/hw/i386/Makefile.objs index 257f3c1a91..2ba04db0a8 100644 --- a/hw/i386/Makefile.objs +++ b/hw/i386/Makefile.objs @@ -3,7 +3,7 @@ obj-y += apic_common.o apic.o kvmvapic.o obj-y += sga.o ioapic_common.o ioapic.o piix_pci.o obj-y += vmport.o obj-y += pci/pci-hotplug.o smbios.o wdt_ib700.o -obj-y += debugcon.o multiboot.o +obj-y += debugcon.o debugexit.o multiboot.o obj-y += pc_piix.o obj-y += pc_sysfw.o obj-y += lpc_ich9.o q35.o pc_q35.o |