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| author | Alexander Egorenkov <egorenar@linux.ibm.com> | 2021-06-16 14:10:03 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2021-07-27 09:39:17 +0200 |
| commit | f1a5469474312939686ffdbcbf521a1cb78eac81 (patch) | |
| tree | baeae709e93a94e2674ad170b62514658019dee2 /arch/s390/kernel | |
| parent | 6bda667037764e116d7e43654522945f3822a14e (diff) | |
| download | linux-f1a5469474312939686ffdbcbf521a1cb78eac81.tar.bz2 | |
s390/setup: don't reserve memory that occupied decompressor's head
There is no useful information within [STARTUP_NORMAL_OFFSET, HEAD_END] now.
But the memory region [0, STARTUP_NORMAL_OFFSET] is used by:
* lowcore
* kdump for swapping memory
* stand-alone zipl dumpers for code, data, stack and heap
Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
| -rw-r--r-- | arch/s390/kernel/setup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 32d1324723f2..c5bbf968669e 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -797,7 +797,7 @@ static void __init reserve_kernel(void) { unsigned long start_pfn = PFN_UP(__pa(_end)); - memblock_reserve(0, HEAD_END); + memblock_reserve(0, STARTUP_NORMAL_OFFSET); memblock_reserve((unsigned long)_stext, PFN_PHYS(start_pfn) - (unsigned long)_stext); } |