4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Marcin Nowakowski <[email protected]> [ Upstream commit 73fbc1eba7ffa3bf0ad12486232a8a1edb4e4411 ] When a memory offset is specified through the commandline, add the memory in range PHYS_OFFSET:Y as reserved memory area. Otherwise the bootmem allocator is initialised with low page equal to min_low_pfn = PHYS_OFFSET, and in free_all_bootmem will process pages starting from min_low_pfn instead of PFN(Y). Signed-off-by: Marcin Nowakowski <[email protected]> Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/14613/ Signed-off-by: Ralf Baechle <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- arch/mips/kernel/setup.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -589,6 +589,10 @@ static int __init early_parse_mem(char * start = memparse(p + 1, &p); add_memory_region(start, size, BOOT_MEM_RAM); + + if (start && start > PHYS_OFFSET) + add_memory_region(PHYS_OFFSET, start - PHYS_OFFSET, + BOOT_MEM_RESERVED); return 0; } early_param("mem", early_parse_mem);
