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Я хочу зарезервировать часть физической памяти при загрузке Linux. Общие параметры ядра должны быть как «mem = 51M memmap = 512M $ 512M». Как я могу указать эти параметры для ядра для Spike?Как указать параметры ядра в Spike (riscv)?
Мои команды исполнения Spike являются:
[email protected]:~/riscv$ spike -m2048 +disk=./root.bin bbl ./linux-3.14.33/vmlinux
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INSTRUCTION SETS WANT TO BE FREE
[ 0.000000] Linux version 3.14.33-g043bb5d ([email protected]) (gcc version 5.2.0 (GCC)) #2 Sun Aug 23 17:19:49 EDT 2015
[ 0.000000] Detected 0x7fc00000 bytes of physical memory
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x00200000-0x7fdfffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00200000-0x7fdfffff]
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 516110
[ 0.000000] Kernel command line: root=/dev/htifblk0
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[ 0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[ 0.000000] Sorting __ex_table...
[ 0.000000] Memory: 2058700K/2093056K available (1722K kernel code, 124K rwdata, 356K rodata, 68K init, 211K bss, 34356K reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS:2
[ 0.150000] Calibrating delay using timer specific routine.. 20.01 BogoMIPS (lpj=100050)
[ 0.150000] pid_max: default: 32768 minimum: 301
[ 0.150000] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.150000] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.150000] devtmpfs: initialized
[ 0.150000] NET: Registered protocol family 16
[ 0.150000] bio: create slab <bio-0> at 0
[ 0.150000] Switched to clocksource riscv_clocksource
[ 0.150000] NET: Registered protocol family 2
[ 0.150000] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[ 0.150000] TCP bind hash table entries: 16384 (order: 5, 131072 bytes)
[ 0.150000] TCP: Hash tables configured (established 16384 bind 16384)
[ 0.150000] TCP: reno registered
[ 0.150000] UDP hash table entries: 1024 (order: 3, 32768 bytes)
[ 0.150000] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)
[ 0.150000] NET: Registered protocol family 1
[ 0.150000] futex hash table entries: 256 (order: 0, 6144 bytes)
[ 0.150000] io scheduler noop registered
[ 0.150000] io scheduler cfq registered (default)
[ 0.150000] htifcon htif1: detected console
[ 0.150000] console [htifcon0] enabled
[ 0.150000] htifblk htif2: detected disk
[ 0.150000] htifblk htif2: added htifblk0
[ 0.150000] TCP: cubic registered
[ 0.150000] VFS: Mounted root (ext2 filesystem) readonly on device 254:0.
[ 0.150000] devtmpfs: mounted
[ 0.150000] Freeing unused kernel memory: 68K (ffffffff80000000 - ffffffff80011000)
[ 0.160000] EXT2-fs (htifblk0): warning: mounting unchecked fs, running e2fsck is recommended
/#
Я попытался
spike -m2048 +disk=./root.bin bbl ./linux-3.14.33/vmlinux mem=1G memmap=1G$1G
spike -m2048 +disk=./root.bin bbl ./linux-3.14.33/vmlinux mem=512M memmap=512M$512M
Ни один из них не работает.
Если я
spike -m2048 +disk=./root.bin bbl "./linux-3.14.33/vmlinux mem=512M memmap=512M$512M"
не могу открыть программу ELF: ./linux-3.14.33/vmlinux мем = 512M memmap = 512M12M!
Спасибо! Именно так я могу указать параметры ядра. –