fc53b7d4b7
To avoid continually having to bump the initrd load address to account for larger kernel images, put the initrd halfway through RAM. This allows large kernels on new boards with lots of RAM to work OK, without breaking existing usecases for boards with only 32MB of RAM. Note that this change fixes in passing a bug where we were passing an overly large max_size to load_image_targphys() for the initrd, which meant that we wouldn't correctly refuse to load an enormous initrd that didn't actually fit into RAM. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Igor Mitsyanko <i.mitsyanko@samsung.com> Tested-by: Cole Robinson <crobinso@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/*
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* Misc ARM declarations
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*
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* Copyright (c) 2006 CodeSourcery.
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* Written by Paul Brook
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*
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* This code is licensed under the LGPL.
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*
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*/
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#ifndef ARM_MISC_H
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#define ARM_MISC_H 1
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#include "memory.h"
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/* The CPU is also modeled as an interrupt controller. */
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#define ARM_PIC_CPU_IRQ 0
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#define ARM_PIC_CPU_FIQ 1
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qemu_irq *arm_pic_init_cpu(ARMCPU *cpu);
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/* armv7m.c */
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qemu_irq *armv7m_init(MemoryRegion *address_space_mem,
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int flash_size, int sram_size,
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const char *kernel_filename, const char *cpu_model);
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/* arm_boot.c */
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struct arm_boot_info {
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uint64_t ram_size;
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const char *kernel_filename;
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const char *kernel_cmdline;
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const char *initrd_filename;
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const char *dtb_filename;
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hwaddr loader_start;
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/* multicore boards that use the default secondary core boot functions
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* need to put the address of the secondary boot code, the boot reg,
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* and the GIC address in the next 3 values, respectively. boards that
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* have their own boot functions can use these values as they want.
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*/
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hwaddr smp_loader_start;
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hwaddr smp_bootreg_addr;
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hwaddr gic_cpu_if_addr;
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int nb_cpus;
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int board_id;
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int (*atag_board)(const struct arm_boot_info *info, void *p);
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/* multicore boards that use the default secondary core boot functions
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* can ignore these two function calls. If the default functions won't
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* work, then write_secondary_boot() should write a suitable blob of
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* code mimicking the secondary CPU startup process used by the board's
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* boot loader/boot ROM code, and secondary_cpu_reset_hook() should
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* perform any necessary CPU reset handling and set the PC for the
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* secondary CPUs to point at this boot blob.
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*/
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void (*write_secondary_boot)(ARMCPU *cpu,
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const struct arm_boot_info *info);
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void (*secondary_cpu_reset_hook)(ARMCPU *cpu,
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const struct arm_boot_info *info);
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/* Used internally by arm_boot.c */
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int is_linux;
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hwaddr initrd_start;
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hwaddr initrd_size;
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hwaddr entry;
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};
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void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info);
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/* Multiplication factor to convert from system clock ticks to qemu timer
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ticks. */
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extern int system_clock_scale;
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#endif /* !ARM_MISC_H */
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