diff options
Diffstat (limited to 'arch/s390/boot/vmem.c')
| -rw-r--r-- | arch/s390/boot/vmem.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/boot/vmem.c b/arch/s390/boot/vmem.c index 41ff38a0e2dd..3bcef4fcea80 100644 --- a/arch/s390/boot/vmem.c +++ b/arch/s390/boot/vmem.c @@ -6,6 +6,7 @@ #include <asm/sections.h> #include <asm/mem_detect.h> #include <asm/maccess.h> +#include <asm/abs_lowcore.h> #include "decompressor.h" #include "boot.h" @@ -29,6 +30,7 @@ unsigned long __bootdata(pgalloc_low); enum populate_mode { POPULATE_NONE, POPULATE_ONE2ONE, + POPULATE_ABS_LOWCORE, }; static void boot_check_oom(void) @@ -102,6 +104,8 @@ static unsigned long _pa(unsigned long addr, enum populate_mode mode) return -1; case POPULATE_ONE2ONE: return addr; + case POPULATE_ABS_LOWCORE: + return __abs_lowcore_pa(addr); default: return -1; } @@ -271,6 +275,8 @@ void setup_vmem(unsigned long online_end, unsigned long asce_limit) pgtable_populate_begin(online_end); pgtable_populate(0, sizeof(struct lowcore), POPULATE_ONE2ONE); pgtable_populate(0, online_end, POPULATE_ONE2ONE); + pgtable_populate(__abs_lowcore, __abs_lowcore + sizeof(struct lowcore), + POPULATE_ABS_LOWCORE); pgtable_populate(__memcpy_real_area, __memcpy_real_area + PAGE_SIZE, POPULATE_NONE); memcpy_real_ptep = __virt_to_kpte(__memcpy_real_area); |