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authorMax Filippov <jcmvbkbc@gmail.com>2011-10-16 02:56:07 +0400
committerBlue Swirl <blauwirbel@gmail.com>2011-10-16 10:40:23 +0000
commit5e4085737400ffa3db09f1dc22569b167f9e2675 (patch)
treed0a1a10579550a35e345e6f439fad6a3205e014a /hw/xtensa_sim.c
parent935f7a2b428f71a40e985f09955bccaaf09518fa (diff)
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target-xtensa: rename dc232b board to sim
This is to get aligned with the linux name for this machine. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'hw/xtensa_sim.c')
-rw-r--r--hw/xtensa_sim.c116
1 files changed, 116 insertions, 0 deletions
diff --git a/hw/xtensa_sim.c b/hw/xtensa_sim.c
new file mode 100644
index 0000000..a94e4e5
--- /dev/null
+++ b/hw/xtensa_sim.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the Open Source and Linux Lab nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "sysemu.h"
+#include "boards.h"
+#include "loader.h"
+#include "elf.h"
+#include "memory.h"
+#include "exec-memory.h"
+
+static uint64_t translate_phys_addr(void *env, uint64_t addr)
+{
+ return cpu_get_phys_page_debug(env, addr);
+}
+
+static void sim_reset(void *env)
+{
+ cpu_reset(env);
+}
+
+static void sim_init(ram_addr_t ram_size,
+ const char *boot_device,
+ const char *kernel_filename, const char *kernel_cmdline,
+ const char *initrd_filename, const char *cpu_model)
+{
+ CPUState *env = NULL;
+ MemoryRegion *ram, *rom;
+ int n;
+
+ for (n = 0; n < smp_cpus; n++) {
+ env = cpu_init(cpu_model);
+ if (!env) {
+ fprintf(stderr, "Unable to find CPU definition\n");
+ exit(1);
+ }
+ env->sregs[PRID] = n;
+ qemu_register_reset(sim_reset, env);
+ /* Need MMU initialized prior to ELF loading,
+ * so that ELF gets loaded into virtual addresses
+ */
+ sim_reset(env);
+ }
+
+ ram = g_malloc(sizeof(*ram));
+ memory_region_init_ram(ram, NULL, "xtensa.sram", ram_size);
+ memory_region_add_subregion(get_system_memory(), 0, ram);
+
+ rom = g_malloc(sizeof(*rom));
+ memory_region_init_ram(rom, NULL, "xtensa.rom", 0x1000);
+ memory_region_add_subregion(get_system_memory(), 0xfe000000, rom);
+
+ if (kernel_filename) {
+ uint64_t elf_entry;
+ uint64_t elf_lowaddr;
+#ifdef TARGET_WORDS_BIGENDIAN
+ int success = load_elf(kernel_filename, translate_phys_addr, env,
+ &elf_entry, &elf_lowaddr, NULL, 1, ELF_MACHINE, 0);
+#else
+ int success = load_elf(kernel_filename, translate_phys_addr, env,
+ &elf_entry, &elf_lowaddr, NULL, 0, ELF_MACHINE, 0);
+#endif
+ if (success > 0) {
+ env->pc = elf_entry;
+ }
+ }
+}
+
+static void xtensa_sim_init(ram_addr_t ram_size,
+ const char *boot_device,
+ const char *kernel_filename, const char *kernel_cmdline,
+ const char *initrd_filename, const char *cpu_model)
+{
+ if (!cpu_model) {
+ cpu_model = "dc232b";
+ }
+ sim_init(ram_size, boot_device, kernel_filename, kernel_cmdline,
+ initrd_filename, cpu_model);
+}
+
+static QEMUMachine xtensa_sim_machine = {
+ .name = "sim",
+ .desc = "sim machine (dc232b)",
+ .init = xtensa_sim_init,
+ .max_cpus = 4,
+};
+
+static void xtensa_sim_machine_init(void)
+{
+ qemu_register_machine(&xtensa_sim_machine);
+}
+
+machine_init(xtensa_sim_machine_init);