0c4f2623b9
Currently there are two separate places where kernel memory layout has to be known and adjusted: 1. early kasan setup. 2. paging setup later. Those 2 places had to be kept in sync and adjusted to reflect peculiar technical details of one another. With additional factors which influence kernel memory layout like ultravisor secure storage limit, complexity of keeping two things in sync grew up even more. Besides that if we look forward towards creating identity mapping and enabling DAT before jumping into uncompressed kernel - that would also require full knowledge of and control over kernel memory layout. So, de-duplicate and move kernel memory layout setup logic into the decompressor. Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
35 lines
879 B
C
35 lines
879 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef BOOT_BOOT_H
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#define BOOT_BOOT_H
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#include <linux/types.h>
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#define BOOT_STACK_OFFSET 0x8000
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#ifndef __ASSEMBLY__
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#include <linux/compiler.h>
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void startup_kernel(void);
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unsigned long detect_memory(void);
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bool is_ipl_block_dump(void);
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void store_ipl_parmblock(void);
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void setup_boot_command_line(void);
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void parse_boot_command_line(void);
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void verify_facilities(void);
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void print_missing_facilities(void);
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void print_pgm_check_info(void);
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unsigned long get_random_base(unsigned long safe_addr);
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void __printf(1, 2) decompressor_printk(const char *fmt, ...);
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extern const char kernel_version[];
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extern unsigned long memory_limit;
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extern unsigned long vmalloc_size;
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extern int vmalloc_size_set;
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extern int kaslr_enabled;
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unsigned long read_ipl_report(unsigned long safe_offset);
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#endif /* __ASSEMBLY__ */
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#endif /* BOOT_BOOT_H */
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