diff options
Diffstat (limited to 'arch/s390/boot/ipl_parm.c')
| -rw-r--r-- | arch/s390/boot/ipl_parm.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/arch/s390/boot/ipl_parm.c b/arch/s390/boot/ipl_parm.c index b8aa6a9f937b..357adad991d2 100644 --- a/arch/s390/boot/ipl_parm.c +++ b/arch/s390/boot/ipl_parm.c @@ -7,13 +7,16 @@ #include <asm/sections.h> #include <asm/boot_data.h> #include <asm/facility.h> +#include <asm/pgtable.h> #include <asm/uv.h> #include "boot.h" char __bootdata(early_command_line)[COMMAND_LINE_SIZE]; struct ipl_parameter_block __bootdata_preserved(ipl_block); int __bootdata_preserved(ipl_block_valid); +unsigned int __bootdata_preserved(zlib_dfltcc_support) = ZLIB_DFLTCC_FULL; +unsigned long __bootdata(vmalloc_size) = VMALLOC_DEFAULT_SIZE; unsigned long __bootdata(memory_end); int __bootdata(memory_end_set); int __bootdata(noexec_disabled); @@ -219,18 +222,34 @@ void parse_boot_command_line(void) while (*args) { args = next_arg(args, ¶m, &val); - if (!strcmp(param, "mem")) { - memory_end = memparse(val, NULL); + if (!strcmp(param, "mem") && val) { + memory_end = round_down(memparse(val, NULL), PAGE_SIZE); memory_end_set = 1; } + if (!strcmp(param, "vmalloc") && val) + vmalloc_size = round_up(memparse(val, NULL), PAGE_SIZE); + + if (!strcmp(param, "dfltcc")) { + if (!strcmp(val, "off")) + zlib_dfltcc_support = ZLIB_DFLTCC_DISABLED; + else if (!strcmp(val, "on")) + zlib_dfltcc_support = ZLIB_DFLTCC_FULL; + else if (!strcmp(val, "def_only")) + zlib_dfltcc_support = ZLIB_DFLTCC_DEFLATE_ONLY; + else if (!strcmp(val, "inf_only")) + zlib_dfltcc_support = ZLIB_DFLTCC_INFLATE_ONLY; + else if (!strcmp(val, "always")) + zlib_dfltcc_support = ZLIB_DFLTCC_FULL_DEBUG; + } + if (!strcmp(param, "noexec")) { rc = kstrtobool(val, &enabled); if (!rc && !enabled) noexec_disabled = 1; } - if (!strcmp(param, "facilities")) + if (!strcmp(param, "facilities") && val) modify_fac_list(val); if (!strcmp(param, "nokaslr")) |
