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Sandbox doesn't actually provide U-Boot access to the machine's physical memory. Instead it provides a RAM buffer of configurable size, and all memory accesses are within that buffer. Sandbox memory starts at 0 and is CONFIG_DRAM_SIZE bytes in size. Allowing access outside this buffer might produce unpredictable results in the event of an error, and would expose the host machine's memory architecture to the sandbox U-Boot. Most U-Boot functions assume that they can just access memory at given address. For sandbox this is not true. Add a map_sysmem() call which converts a U-Boot address to a system address. In most cases this is a NOP, but for sandbox it returns a pointer to that memory inside the RAM buffer. To get a U-Boot feature to work correctly within sandbox, you should call map_sysmem() to get a pointer to the address, and then use that address for any U-Boot memory accesses. Signed-off-by: Simon Glass <sjg@chromium.org> |
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| .. | ||
| bitops.h | ||
| byteorder.h | ||
| cache.h | ||
| config.h | ||
| errno.h | ||
| getopt.h | ||
| global_data.h | ||
| gpio.h | ||
| io.h | ||
| posix_types.h | ||
| ptrace.h | ||
| sections.h | ||
| state.h | ||
| string.h | ||
| system.h | ||
| types.h | ||
| u-boot-sandbox.h | ||
| u-boot.h | ||
| unaligned.h | ||