[MIPS] Kexec: Fix several 64-bit bugs.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
parent
1065932fcb
commit
00be0f305f
|
@ -14,67 +14,69 @@
|
|||
#include <asm/stackframe.h>
|
||||
#include <asm/addrspace.h>
|
||||
|
||||
.globl relocate_new_kernel
|
||||
relocate_new_kernel:
|
||||
|
||||
PTR_L s0, kexec_indirection_page
|
||||
PTR_L s1, kexec_start_address
|
||||
LEAF(relocate_new_kernel)
|
||||
PTR_L s0, kexec_indirection_page
|
||||
PTR_L s1, kexec_start_address
|
||||
|
||||
process_entry:
|
||||
PTR_L s2, (s0)
|
||||
PTR_ADD s0, s0, SZREG
|
||||
PTR_L s2, (s0)
|
||||
PTR_ADD s0, s0, SZREG
|
||||
|
||||
/* destination page */
|
||||
and s3, s2, 0x1
|
||||
beq s3, zero, 1f
|
||||
and s4, s2, ~0x1 /* store destination addr in s4 */
|
||||
move a0, s4
|
||||
b process_entry
|
||||
and s3, s2, 0x1
|
||||
beq s3, zero, 1f
|
||||
and s4, s2, ~0x1 /* store destination addr in s4 */
|
||||
move a0, s4
|
||||
b process_entry
|
||||
|
||||
1:
|
||||
/* indirection page, update s0 */
|
||||
and s3, s2, 0x2
|
||||
beq s3, zero, 1f
|
||||
and s0, s2, ~0x2
|
||||
b process_entry
|
||||
and s3, s2, 0x2
|
||||
beq s3, zero, 1f
|
||||
and s0, s2, ~0x2
|
||||
b process_entry
|
||||
|
||||
1:
|
||||
/* done page */
|
||||
and s3, s2, 0x4
|
||||
beq s3, zero, 1f
|
||||
b done
|
||||
and s3, s2, 0x4
|
||||
beq s3, zero, 1f
|
||||
b done
|
||||
1:
|
||||
/* source page */
|
||||
and s3, s2, 0x8
|
||||
beq s3, zero, process_entry
|
||||
and s2, s2, ~0x8
|
||||
li s6, (1 << PAGE_SHIFT) / SZREG
|
||||
and s3, s2, 0x8
|
||||
beq s3, zero, process_entry
|
||||
and s2, s2, ~0x8
|
||||
li s6, (1 << PAGE_SHIFT) / SZREG
|
||||
|
||||
copy_word:
|
||||
/* copy page word by word */
|
||||
REG_L s5, (s2)
|
||||
REG_S s5, (s4)
|
||||
INT_ADD s4, s4, SZREG
|
||||
INT_ADD s2, s2, SZREG
|
||||
INT_SUB s6, s6, 1
|
||||
beq s6, zero, process_entry
|
||||
b copy_word
|
||||
b process_entry
|
||||
REG_L s5, (s2)
|
||||
REG_S s5, (s4)
|
||||
PTR_ADD s4, s4, SZREG
|
||||
PTR_ADD s2, s2, SZREG
|
||||
LONG_SUB s6, s6, 1
|
||||
beq s6, zero, process_entry
|
||||
b copy_word
|
||||
b process_entry
|
||||
|
||||
done:
|
||||
/* jump to kexec_start_address */
|
||||
j s1
|
||||
j s1
|
||||
END(relocate_new_kernel)
|
||||
|
||||
.globl kexec_start_address
|
||||
kexec_start_address:
|
||||
.long 0x0
|
||||
EXPORT(kexec_start_address)
|
||||
PTR 0x0
|
||||
.size kexec_start_address, PTRSIZE
|
||||
|
||||
.globl kexec_indirection_page
|
||||
kexec_indirection_page:
|
||||
.long 0x0
|
||||
EXPORT(kexec_indirection_page)
|
||||
PTR 0
|
||||
.size kexec_indirection_page, PTRSIZE
|
||||
|
||||
relocate_new_kernel_end:
|
||||
|
||||
.globl relocate_new_kernel_size
|
||||
relocate_new_kernel_size:
|
||||
.long relocate_new_kernel_end - relocate_new_kernel
|
||||
EXPORT(relocate_new_kernel_size)
|
||||
PTR relocate_new_kernel_end - relocate_new_kernel
|
||||
.size relocate_new_kernel_size, PTRSIZE
|
||||
|
|
Loading…
Reference in New Issue