Add qemu 2.4.0

[kvmfornfv.git] / qemu / include / hw / arm / arm.h

diff --git a/qemu/include/hw/arm/arm.h b/qemu/include/hw/arm/arm.h
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+++ b/qemu/include/hw/arm/arm.h
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+/*
+ * Misc ARM declarations
+ *
+ * Copyright (c) 2006 CodeSourcery.
+ * Written by Paul Brook
+ *
+ * This code is licensed under the LGPL.
+ *
+ */
+
+#ifndef ARM_MISC_H
+#define ARM_MISC_H 1
+
+#include "exec/memory.h"
+#include "hw/irq.h"
+#include "qemu/notify.h"
+#include "cpu.h"
+
+/* armv7m.c */
+qemu_irq *armv7m_init(MemoryRegion *system_memory, int mem_size, int num_irq,
+                      const char *kernel_filename, const char *cpu_model);
+
+/*
+ * struct used as a parameter of the arm_load_kernel machine init
+ * done notifier
+ */
+typedef struct {
+    Notifier notifier; /* actual notifier */
+    ARMCPU *cpu; /* handle to the first cpu object */
+} ArmLoadKernelNotifier;
+
+/* arm_boot.c */
+struct arm_boot_info {
+    uint64_t ram_size;
+    const char *kernel_filename;
+    const char *kernel_cmdline;
+    const char *initrd_filename;
+    const char *dtb_filename;
+    hwaddr loader_start;
+    /* multicore boards that use the default secondary core boot functions
+     * need to put the address of the secondary boot code, the boot reg,
+     * and the GIC address in the next 3 values, respectively. boards that
+     * have their own boot functions can use these values as they want.
+     */
+    hwaddr smp_loader_start;
+    hwaddr smp_bootreg_addr;
+    hwaddr gic_cpu_if_addr;
+    int nb_cpus;
+    int board_id;
+    /* ARM machines that support the ARM Security Extensions use this field to
+     * control whether Linux is booted as secure(true) or non-secure(false).
+     */
+    bool secure_boot;
+    int (*atag_board)(const struct arm_boot_info *info, void *p);
+    /* multicore boards that use the default secondary core boot functions
+     * can ignore these two function calls. If the default functions won't
+     * work, then write_secondary_boot() should write a suitable blob of
+     * code mimicking the secondary CPU startup process used by the board's
+     * boot loader/boot ROM code, and secondary_cpu_reset_hook() should
+     * perform any necessary CPU reset handling and set the PC for the
+     * secondary CPUs to point at this boot blob.
+     */
+    void (*write_secondary_boot)(ARMCPU *cpu,
+                                 const struct arm_boot_info *info);
+    void (*secondary_cpu_reset_hook)(ARMCPU *cpu,
+                                     const struct arm_boot_info *info);
+    /* if a board is able to create a dtb without a dtb file then it
+     * sets get_dtb. This will only be used if no dtb file is provided
+     * by the user. On success, sets *size to the length of the created
+     * dtb, and returns a pointer to it. (The caller must free this memory
+     * with g_free() when it has finished with it.) On failure, returns NULL.
+     */
+    void *(*get_dtb)(const struct arm_boot_info *info, int *size);
+    /* if a board needs to be able to modify a device tree provided by
+     * the user it should implement this hook.
+     */
+    void (*modify_dtb)(const struct arm_boot_info *info, void *fdt);
+    /* machine init done notifier executing arm_load_dtb */
+    ArmLoadKernelNotifier load_kernel_notifier;
+    /* Used internally by arm_boot.c */
+    int is_linux;
+    hwaddr initrd_start;
+    hwaddr initrd_size;
+    hwaddr entry;
+
+    /* Boot firmware has been loaded, typically at address 0, with -bios or
+     * -pflash. It also implies that fw_cfg_find() will succeed.
+     */
+    bool firmware_loaded;
+};
+
+/**
+ * arm_load_kernel - Loads memory with everything needed to boot
+ *
+ * @cpu: handle to the first CPU object
+ * @info: handle to the boot info struct
+ * Registers a machine init done notifier that copies to memory
+ * everything needed to boot, depending on machine and user options:
+ * kernel image, boot loaders, initrd, dtb. Also registers the CPU
+ * reset handler.
+ *
+ * In case the machine file supports the platform bus device and its
+ * dynamically instantiable sysbus devices, this function must be called
+ * before sysbus-fdt arm_register_platform_bus_fdt_creator. Indeed the
+ * machine init done notifiers are called in registration reverse order.
+ */
+void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info);
+
+/* Multiplication factor to convert from system clock ticks to qemu timer
+   ticks.  */
+extern int system_clock_scale;
+
+#endif /* !ARM_MISC_H */