[S390] smp: fix lowcore allocation
The intermediate lowcore for CONFIG_SMP is allocated using a call to __alloc_bootmem() with a goal of 0. That however doesn't guarantee that the allocated piece of memory is below 2GB. Instead we should call __alloc_bootmem_low(). Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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@ -401,7 +401,7 @@ setup_lowcore(void)
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* Setup lowcore for boot cpu
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*/
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BUILD_BUG_ON(sizeof(struct _lowcore) != LC_PAGES * 4096);
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lc = __alloc_bootmem(LC_PAGES * PAGE_SIZE, LC_PAGES * PAGE_SIZE, 0);
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lc = __alloc_bootmem_low(LC_PAGES * PAGE_SIZE, LC_PAGES * PAGE_SIZE, 0);
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lc->restart_psw.mask = PSW_BASE_BITS | PSW_DEFAULT_KEY;
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lc->restart_psw.addr =
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PSW_ADDR_AMODE | (unsigned long) restart_int_handler;
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@ -433,7 +433,7 @@ setup_lowcore(void)
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#ifndef CONFIG_64BIT
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if (MACHINE_HAS_IEEE) {
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lc->extended_save_area_addr = (__u32)
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__alloc_bootmem(PAGE_SIZE, PAGE_SIZE, 0);
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__alloc_bootmem_low(PAGE_SIZE, PAGE_SIZE, 0);
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/* enable extended save area */
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__ctl_set_bit(14, 29);
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}
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