#include "uv.h"
unsigned long __bootdata_preserved(__kaslr_offset);
+unsigned long __bootdata(__amode31_base);
unsigned long __bootdata_preserved(VMALLOC_START);
unsigned long __bootdata_preserved(VMALLOC_END);
struct page *__bootdata_preserved(vmemmap);
vmlinux.dynsym_start += offset;
}
+static unsigned long reserve_amode31(unsigned long safe_addr)
+{
+ __amode31_base = PAGE_ALIGN(safe_addr);
+ return safe_addr + vmlinux.amode31_size;
+}
+
void startup_kernel(void)
{
unsigned long random_lma;
setup_lpp();
store_ipl_parmblock();
safe_addr = mem_safe_offset();
+ safe_addr = reserve_amode31(safe_addr);
safe_addr = read_ipl_report(safe_addr);
uv_query_info();
rescue_initrd(safe_addr);
* relocated above 2 GB, because it has to use 31 bit addresses.
* Such code and data is part of the .amode31 section.
*/
-unsigned long __amode31_ref __samode31 = __pa(&_samode31);
-unsigned long __amode31_ref __eamode31 = __pa(&_eamode31);
-unsigned long __amode31_ref __stext_amode31 = __pa(&_stext_amode31);
-unsigned long __amode31_ref __etext_amode31 = __pa(&_etext_amode31);
+unsigned long __amode31_ref __samode31 = (unsigned long)&_samode31;
+unsigned long __amode31_ref __eamode31 = (unsigned long)&_eamode31;
+unsigned long __amode31_ref __stext_amode31 = (unsigned long)&_stext_amode31;
+unsigned long __amode31_ref __etext_amode31 = (unsigned long)&_etext_amode31;
struct exception_table_entry __amode31_ref *__start_amode31_ex_table = _start_amode31_ex_table;
struct exception_table_entry __amode31_ref *__stop_amode31_ex_table = _stop_amode31_ex_table;
struct initrd_data __bootdata(initrd_data);
unsigned long __bootdata_preserved(__kaslr_offset);
+unsigned long __bootdata(__amode31_base);
unsigned int __bootdata_preserved(zlib_dfltcc_support);
EXPORT_SYMBOL(zlib_dfltcc_support);
u64 __bootdata_preserved(stfle_fac_list[16]);
memblock_reserve(0, STARTUP_NORMAL_OFFSET);
memblock_reserve((unsigned long)sclp_early_sccb, EXT_SCCB_READ_SCP);
+ memblock_reserve(__amode31_base, __eamode31 - __samode31);
memblock_reserve((unsigned long)_stext, PFN_PHYS(start_pfn)
- (unsigned long)_stext);
}
static void __init relocate_amode31_section(void)
{
- unsigned long amode31_addr, amode31_size;
- long amode31_offset;
+ unsigned long amode31_size = __eamode31 - __samode31;
+ long amode31_offset = __amode31_base - __samode31;
long *ptr;
- /* Allocate a new AMODE31 capable memory region */
- amode31_size = __eamode31 - __samode31;
pr_info("Relocating AMODE31 section of size 0x%08lx\n", amode31_size);
- amode31_addr = (unsigned long)memblock_alloc_low(amode31_size, PAGE_SIZE);
- if (!amode31_addr)
- panic("Failed to allocate memory for AMODE31 section\n");
- amode31_offset = amode31_addr - __samode31;
/* Move original AMODE31 section to the new one */
- memmove((void *)amode31_addr, (void *)__samode31, amode31_size);
+ memmove((void *)__amode31_base, (void *)__samode31, amode31_size);
/* Zero out the old AMODE31 section to catch invalid accesses within it */
memset((void *)__samode31, 0, amode31_size);