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| author | Vasily Gorbik <gor@linux.ibm.com> | 2019-04-01 19:10:51 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-04-10 17:47:11 +0200 |
| commit | 1e941d39493f1820475d80729a03cd7ab8c3c86d (patch) | |
| tree | 97ece5ef80810878061b3ee04175361f2a26e41e /arch/s390/boot | |
| parent | bf9921a9c15bad089c08b94c300a6cafa035a612 (diff) | |
| download | linux-1e941d39493f1820475d80729a03cd7ab8c3c86d.tar.gz linux-1e941d39493f1820475d80729a03cd7ab8c3c86d.tar.bz2 linux-1e941d39493f1820475d80729a03cd7ab8c3c86d.zip | |
s390: move ipl block to .boot.preserved.data section
.boot.preserved.data is a better fit for ipl block than .boot.data
which is discarded after init. Reusing .boot.preserved.data allows to
simplify code a little bit and avoid copying data from .boot.data to
persistent variables.
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/boot')
| -rw-r--r-- | arch/s390/boot/ipl_parm.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/arch/s390/boot/ipl_parm.c b/arch/s390/boot/ipl_parm.c index 36beb56de021..dc0438d08751 100644 --- a/arch/s390/boot/ipl_parm.c +++ b/arch/s390/boot/ipl_parm.c @@ -10,8 +10,8 @@ #include "boot.h" char __bootdata(early_command_line)[COMMAND_LINE_SIZE]; -struct ipl_parameter_block __bootdata(early_ipl_block); -int __bootdata(early_ipl_block_valid); +struct ipl_parameter_block __bootdata_preserved(ipl_block); +int __bootdata_preserved(ipl_block_valid); unsigned long __bootdata(memory_end); int __bootdata(memory_end_set); @@ -45,10 +45,10 @@ void store_ipl_parmblock(void) { int rc; - rc = __diag308(DIAG308_STORE, &early_ipl_block); + rc = __diag308(DIAG308_STORE, &ipl_block); if (rc == DIAG308_RC_OK && - early_ipl_block.hdr.version <= IPL_MAX_SUPPORTED_VERSION) - early_ipl_block_valid = 1; + ipl_block.hdr.version <= IPL_MAX_SUPPORTED_VERSION) + ipl_block_valid = 1; } static size_t scpdata_length(const char *buf, size_t count) @@ -103,14 +103,14 @@ static void append_ipl_block_parm(void) delim = early_command_line + len; /* '\0' character position */ parm = early_command_line + len + 1; /* append right after '\0' */ - switch (early_ipl_block.hdr.pbt) { + switch (ipl_block.hdr.pbt) { case DIAG308_IPL_TYPE_CCW: rc = ipl_block_get_ascii_vmparm( - parm, COMMAND_LINE_SIZE - len - 1, &early_ipl_block); + parm, COMMAND_LINE_SIZE - len - 1, &ipl_block); break; case DIAG308_IPL_TYPE_FCP: rc = ipl_block_get_ascii_scpdata( - parm, COMMAND_LINE_SIZE - len - 1, &early_ipl_block); + parm, COMMAND_LINE_SIZE - len - 1, &ipl_block); break; } if (rc) { @@ -141,7 +141,7 @@ void setup_boot_command_line(void) strcpy(early_command_line, strim(COMMAND_LINE)); /* append IPL PARM data to the boot command line */ - if (early_ipl_block_valid) + if (ipl_block_valid) append_ipl_block_parm(); } @@ -234,9 +234,9 @@ void parse_boot_command_line(void) void setup_memory_end(void) { #ifdef CONFIG_CRASH_DUMP - if (!OLDMEM_BASE && early_ipl_block_valid && - early_ipl_block.hdr.pbt == DIAG308_IPL_TYPE_FCP && - early_ipl_block.ipl_info.fcp.opt == DIAG308_IPL_OPT_DUMP) { + if (!OLDMEM_BASE && ipl_block_valid && + ipl_block.hdr.pbt == DIAG308_IPL_TYPE_FCP && + ipl_block.ipl_info.fcp.opt == DIAG308_IPL_OPT_DUMP) { if (!sclp_early_get_hsa_size(&memory_end) && memory_end) memory_end_set = 1; } |