3bc6d7df06
. the total amount of memory in the system didn't include the memory used by the boot-time modules and some dynamic allocation by the kernel at boot time (to map in VM). especially apparent on our ARM board with 'only' 512MB of memory and a huge ramdisk. . also: *add* the VM loaded module to the freelist after it has been allocated for & mapped in instead of cutting it *out* of the freelist! so we get a few more MB free.. Change-Id: If37ac32b21c9d38610830e21421264da4f20bc4f
49 lines
2 KiB
C
49 lines
2 KiB
C
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#ifndef _MINIX_PARAM_H
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#define _MINIX_PARAM_H 1
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#include <minix/com.h>
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#include <minix/const.h>
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/* Number of processes contained in the system image. */
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#define NR_BOOT_PROCS (NR_TASKS + LAST_SPECIAL_PROC_NR + 1)
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/* This is used to obtain system information through SYS_GETINFO. */
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#define MAXMEMMAP 40
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typedef struct kinfo {
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/* Straight multiboot-provided info */
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multiboot_info_t mbi;
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multiboot_module_t module_list[MULTIBOOT_MAX_MODS];
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multiboot_memory_map_t memmap[MAXMEMMAP]; /* free mem list */
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phys_bytes mem_high_phys;
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int mmap_size;
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/* Multiboot-derived */
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int mods_with_kernel; /* no. of mods incl kernel */
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int kern_mod; /* which one is kernel */
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/* Minix stuff, started at bootstrap phase */
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int freepde_start; /* lowest pde unused kernel pde */
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char param_buf[MULTIBOOT_PARAM_BUF_SIZE];
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/* Minix stuff */
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struct kmessages *kmessages;
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int do_serial_debug; /* system serial output */
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int serial_debug_baud; /* serial baud rate */
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int minix_panicing; /* are we panicing? */
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vir_bytes user_sp; /* where does kernel want stack set */
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vir_bytes user_end; /* upper proc limit */
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vir_bytes vir_kern_start; /* kernel addrspace starts */
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vir_bytes bootstrap_start, bootstrap_len;
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struct boot_image boot_procs[NR_BOOT_PROCS];
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int nr_procs; /* number of user processes */
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int nr_tasks; /* number of kernel tasks */
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char release[6]; /* kernel release number */
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char version[6]; /* kernel version number */
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int vm_allocated_bytes; /* allocated by kernel to load vm */
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int kernel_allocated_bytes; /* used by kernel */
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int kernel_allocated_bytes_dynamic; /* used by kernel (runtime) */
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} kinfo_t;
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#endif
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