tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
s390/tx: allow program interruption filtering in user space
A user space program using the transactional execution facility
should be allowed to do program interrupt filtering. Do not set the
transactional-execution program-interruption-filtering override (PIFO)
bit in CR0.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
+3
-3
+3
-3
arch/s390/kernel/ptrace.c
+3
-3
arch/s390/kernel/ptrace.c
···
60
60
61
61
__ctl_store(cr, 0, 2);
62
62
cr_new[1] = cr[1];
63
-
/* Set or clear transaction execution TXC/PIFO bits 8 and 9. */
63
+
/* Set or clear transaction execution TXC bit 8. */
64
64
if (task->thread.per_flags & PER_FLAG_NO_TE)
65
-
cr_new[0] = cr[0] & ~(3UL << 54);
65
+
cr_new[0] = cr[0] & ~(1UL << 55);
66
66
else
67
-
cr_new[0] = cr[0] | (3UL << 54);
67
+
cr_new[0] = cr[0] | (1UL << 55);
68
68
/* Set or clear transaction execution TDC bits 62 and 63. */
69
69
cr_new[2] = cr[2] & ~3UL;
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70
if (task->thread.per_flags & PER_FLAG_TE_ABORT_RAND) {