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c8057f951d
For command line options which permit '?' meaning 'please list the permitted values', add support for 'help' as a synonym, by abstracting the check out into a helper function. This change means that in some cases where we were being lazy in our string parsing, "?junk" will now be rejected as an invalid option rather than being (undocumentedly) treated the same way as "?". Update the documentation to use 'help' rather than '?', since '?' is a shell metacharacter and thus prone to fail confusingly if there is a single character filename in the current working directory and the '?' has not been escaped. It's therefore better to steer users towards 'help', though '?' is retained for backwards compatibility. We do not, however, update the output of the system emulator's -help (or any documentation autogenerated from the qemu-options.hx which is the source of the -help text) because libvirt parses our -help output and will break. At a later date when QEMU provides a better interface so libvirt can avoid having to do this, we can update the -help text too. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
345 lines
11 KiB
C
345 lines
11 KiB
C
/*
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* QEMU MIPS Jazz support
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*
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* Copyright (c) 2007-2008 Hervé Poussineau
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw.h"
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#include "mips.h"
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#include "mips_cpudevs.h"
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#include "pc.h"
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#include "isa.h"
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#include "fdc.h"
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#include "sysemu.h"
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#include "arch_init.h"
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#include "boards.h"
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#include "net.h"
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#include "esp.h"
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#include "mips-bios.h"
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#include "loader.h"
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#include "mc146818rtc.h"
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#include "i8254.h"
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#include "pcspk.h"
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#include "blockdev.h"
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#include "sysbus.h"
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#include "exec-memory.h"
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enum jazz_model_e
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{
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JAZZ_MAGNUM,
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JAZZ_PICA61,
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};
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static void main_cpu_reset(void *opaque)
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{
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MIPSCPU *cpu = opaque;
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cpu_reset(CPU(cpu));
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}
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static uint64_t rtc_read(void *opaque, target_phys_addr_t addr, unsigned size)
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{
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return cpu_inw(0x71);
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}
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static void rtc_write(void *opaque, target_phys_addr_t addr,
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uint64_t val, unsigned size)
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{
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cpu_outw(0x71, val & 0xff);
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}
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static const MemoryRegionOps rtc_ops = {
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.read = rtc_read,
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.write = rtc_write,
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.endianness = DEVICE_NATIVE_ENDIAN,
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};
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static uint64_t dma_dummy_read(void *opaque, target_phys_addr_t addr,
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unsigned size)
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{
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/* Nothing to do. That is only to ensure that
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* the current DMA acknowledge cycle is completed. */
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return 0xff;
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}
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static void dma_dummy_write(void *opaque, target_phys_addr_t addr,
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uint64_t val, unsigned size)
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{
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/* Nothing to do. That is only to ensure that
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* the current DMA acknowledge cycle is completed. */
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}
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static const MemoryRegionOps dma_dummy_ops = {
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.read = dma_dummy_read,
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.write = dma_dummy_write,
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.endianness = DEVICE_NATIVE_ENDIAN,
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};
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#define MAGNUM_BIOS_SIZE_MAX 0x7e000
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#define MAGNUM_BIOS_SIZE (BIOS_SIZE < MAGNUM_BIOS_SIZE_MAX ? BIOS_SIZE : MAGNUM_BIOS_SIZE_MAX)
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static void cpu_request_exit(void *opaque, int irq, int level)
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{
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CPUMIPSState *env = cpu_single_env;
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if (env && level) {
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cpu_exit(env);
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}
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}
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static void mips_jazz_init(MemoryRegion *address_space,
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MemoryRegion *address_space_io,
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ram_addr_t ram_size,
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const char *cpu_model,
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enum jazz_model_e jazz_model)
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{
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char *filename;
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int bios_size, n;
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MIPSCPU *cpu;
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CPUMIPSState *env;
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qemu_irq *rc4030, *i8259;
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rc4030_dma *dmas;
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void* rc4030_opaque;
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MemoryRegion *rtc = g_new(MemoryRegion, 1);
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MemoryRegion *i8042 = g_new(MemoryRegion, 1);
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MemoryRegion *dma_dummy = g_new(MemoryRegion, 1);
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NICInfo *nd;
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DeviceState *dev;
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SysBusDevice *sysbus;
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ISABus *isa_bus;
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ISADevice *pit;
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DriveInfo *fds[MAX_FD];
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qemu_irq esp_reset, dma_enable;
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qemu_irq *cpu_exit_irq;
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MemoryRegion *ram = g_new(MemoryRegion, 1);
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MemoryRegion *bios = g_new(MemoryRegion, 1);
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MemoryRegion *bios2 = g_new(MemoryRegion, 1);
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/* init CPUs */
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if (cpu_model == NULL) {
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#ifdef TARGET_MIPS64
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cpu_model = "R4000";
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#else
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/* FIXME: All wrong, this maybe should be R3000 for the older JAZZs. */
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cpu_model = "24Kf";
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#endif
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}
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cpu = cpu_mips_init(cpu_model);
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if (cpu == NULL) {
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fprintf(stderr, "Unable to find CPU definition\n");
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exit(1);
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}
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env = &cpu->env;
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qemu_register_reset(main_cpu_reset, cpu);
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/* allocate RAM */
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memory_region_init_ram(ram, "mips_jazz.ram", ram_size);
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vmstate_register_ram_global(ram);
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memory_region_add_subregion(address_space, 0, ram);
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memory_region_init_ram(bios, "mips_jazz.bios", MAGNUM_BIOS_SIZE);
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vmstate_register_ram_global(bios);
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memory_region_set_readonly(bios, true);
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memory_region_init_alias(bios2, "mips_jazz.bios", bios,
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0, MAGNUM_BIOS_SIZE);
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memory_region_add_subregion(address_space, 0x1fc00000LL, bios);
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memory_region_add_subregion(address_space, 0xfff00000LL, bios2);
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/* load the BIOS image. */
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if (bios_name == NULL)
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bios_name = BIOS_FILENAME;
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filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
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if (filename) {
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bios_size = load_image_targphys(filename, 0xfff00000LL,
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MAGNUM_BIOS_SIZE);
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g_free(filename);
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} else {
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bios_size = -1;
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}
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if (bios_size < 0 || bios_size > MAGNUM_BIOS_SIZE) {
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fprintf(stderr, "qemu: Could not load MIPS bios '%s'\n",
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bios_name);
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exit(1);
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}
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/* Init CPU internal devices */
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cpu_mips_irq_init_cpu(env);
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cpu_mips_clock_init(env);
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/* Chipset */
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rc4030_opaque = rc4030_init(env->irq[6], env->irq[3], &rc4030, &dmas,
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address_space);
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memory_region_init_io(dma_dummy, &dma_dummy_ops, NULL, "dummy_dma", 0x1000);
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memory_region_add_subregion(address_space, 0x8000d000, dma_dummy);
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/* ISA devices */
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isa_bus = isa_bus_new(NULL, address_space_io);
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i8259 = i8259_init(isa_bus, env->irq[4]);
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isa_bus_irqs(isa_bus, i8259);
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cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
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DMA_init(0, cpu_exit_irq);
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pit = pit_init(isa_bus, 0x40, 0, NULL);
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pcspk_init(isa_bus, pit);
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/* ISA IO space at 0x90000000 */
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isa_mmio_init(0x90000000, 0x01000000);
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isa_mem_base = 0x11000000;
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/* Video card */
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switch (jazz_model) {
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case JAZZ_MAGNUM:
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dev = qdev_create(NULL, "sysbus-g364");
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qdev_init_nofail(dev);
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sysbus = sysbus_from_qdev(dev);
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sysbus_mmio_map(sysbus, 0, 0x60080000);
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sysbus_mmio_map(sysbus, 1, 0x40000000);
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sysbus_connect_irq(sysbus, 0, rc4030[3]);
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{
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/* Simple ROM, so user doesn't have to provide one */
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MemoryRegion *rom_mr = g_new(MemoryRegion, 1);
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memory_region_init_ram(rom_mr, "g364fb.rom", 0x80000);
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vmstate_register_ram_global(rom_mr);
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memory_region_set_readonly(rom_mr, true);
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uint8_t *rom = memory_region_get_ram_ptr(rom_mr);
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memory_region_add_subregion(address_space, 0x60000000, rom_mr);
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rom[0] = 0x10; /* Mips G364 */
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}
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break;
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case JAZZ_PICA61:
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isa_vga_mm_init(0x40000000, 0x60000000, 0, get_system_memory());
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break;
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default:
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break;
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}
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/* Network controller */
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for (n = 0; n < nb_nics; n++) {
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nd = &nd_table[n];
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if (!nd->model)
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nd->model = g_strdup("dp83932");
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if (strcmp(nd->model, "dp83932") == 0) {
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dp83932_init(nd, 0x80001000, 2, get_system_memory(), rc4030[4],
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rc4030_opaque, rc4030_dma_memory_rw);
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break;
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} else if (is_help_option(nd->model)) {
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fprintf(stderr, "qemu: Supported NICs: dp83932\n");
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exit(1);
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} else {
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fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd->model);
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exit(1);
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}
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}
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/* SCSI adapter */
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esp_init(0x80002000, 0,
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rc4030_dma_read, rc4030_dma_write, dmas[0],
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rc4030[5], &esp_reset, &dma_enable);
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/* Floppy */
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if (drive_get_max_bus(IF_FLOPPY) >= MAX_FD) {
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fprintf(stderr, "qemu: too many floppy drives\n");
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exit(1);
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}
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for (n = 0; n < MAX_FD; n++) {
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fds[n] = drive_get(IF_FLOPPY, 0, n);
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}
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fdctrl_init_sysbus(rc4030[1], 0, 0x80003000, fds);
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/* Real time clock */
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rtc_init(isa_bus, 1980, NULL);
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memory_region_init_io(rtc, &rtc_ops, NULL, "rtc", 0x1000);
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memory_region_add_subregion(address_space, 0x80004000, rtc);
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/* Keyboard (i8042) */
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i8042_mm_init(rc4030[6], rc4030[7], i8042, 0x1000, 0x1);
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memory_region_add_subregion(address_space, 0x80005000, i8042);
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/* Serial ports */
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if (serial_hds[0]) {
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serial_mm_init(address_space, 0x80006000, 0, rc4030[8], 8000000/16,
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serial_hds[0], DEVICE_NATIVE_ENDIAN);
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}
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if (serial_hds[1]) {
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serial_mm_init(address_space, 0x80007000, 0, rc4030[9], 8000000/16,
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serial_hds[1], DEVICE_NATIVE_ENDIAN);
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}
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/* Parallel port */
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if (parallel_hds[0])
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parallel_mm_init(address_space, 0x80008000, 0, rc4030[0],
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parallel_hds[0]);
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/* Sound card */
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/* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */
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audio_init(isa_bus, NULL);
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/* NVRAM */
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dev = qdev_create(NULL, "ds1225y");
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qdev_init_nofail(dev);
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sysbus = sysbus_from_qdev(dev);
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sysbus_mmio_map(sysbus, 0, 0x80009000);
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/* LED indicator */
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sysbus_create_simple("jazz-led", 0x8000f000, NULL);
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}
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static
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void mips_magnum_init (ram_addr_t ram_size,
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const char *boot_device,
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const char *kernel_filename, const char *kernel_cmdline,
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const char *initrd_filename, const char *cpu_model)
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{
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mips_jazz_init(get_system_memory(), get_system_io(),
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ram_size, cpu_model, JAZZ_MAGNUM);
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}
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static
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void mips_pica61_init (ram_addr_t ram_size,
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const char *boot_device,
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const char *kernel_filename, const char *kernel_cmdline,
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const char *initrd_filename, const char *cpu_model)
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{
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mips_jazz_init(get_system_memory(), get_system_io(),
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ram_size, cpu_model, JAZZ_PICA61);
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}
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static QEMUMachine mips_magnum_machine = {
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.name = "magnum",
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.desc = "MIPS Magnum",
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.init = mips_magnum_init,
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.use_scsi = 1,
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};
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static QEMUMachine mips_pica61_machine = {
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.name = "pica61",
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.desc = "Acer Pica 61",
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.init = mips_pica61_init,
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.use_scsi = 1,
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};
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static void mips_jazz_machine_init(void)
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{
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qemu_register_machine(&mips_magnum_machine);
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qemu_register_machine(&mips_pica61_machine);
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}
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machine_init(mips_jazz_machine_init);
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