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s390/kdump: fix REGSET_VX_LOW vector register ELF notes 

The REGSET_VX_LOW ELF notes should contain the lower 64 bit halfes of the
first sixteen 128 bit vector registers. Unfortunately currently we copy
the upper halfes.

Fix this and correctly copy the lower halfes.

Fixes: a62bc07392 ("s390/kdump: add support for vector extension")
Cc: stable@vger.kernel.org # 3.18+
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Michael Holzheu 2015-06-11 19:59:04 +02:00 committed by Martin Schwidefsky
parent b035b60ded
commit 3c8e5105e7
1 changed files with 1 additions and 1 deletions
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2
arch/s390/kernel/crash_dump.c
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@ -416,7 +416,7 @@ static void *nt_s390_vx_low(void *ptr, __vector128 *vx_regs)
ptr += len;
/* Copy lower halves of SIMD registers 0-15 */
for (i = 0; i < 16; i++) {
memcpy(ptr, &vx_regs[i], 8);
memcpy(ptr, &vx_regs[i].u[2], 8);
ptr += 8;
}
return ptr;