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authorMichael Neuling <mikey@neuling.org>2012-09-06 21:24:56 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-09-10 09:59:10 +1000
commit4474ef055c5d8cb8eaf002d69e49af71e3aa3a88 (patch)
treee57b99bfa78d7c3faf4125ab4a08f17fed2c41d8 /arch/powerpc/kernel/signal.c
parent3ab96a02e829131c19db8ed99239289acdb4e3dc (diff)
powerpc: Rework set_dabr so it can take a DABRX value as well
Rework set_dabr to take a DABRX value as well. Both the pseries and PS3 hypervisors do some checks on the DABRX values that are passed in the hcall. This patch stops bogus values from being passed to hypervisor. Also, in the case where we are clearing the breakpoint, where DABR and DABRX are zero, we modify the DABRX value to make it valid so that the hcall won't fail. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/signal.c')
-rw-r--r--arch/powerpc/kernel/signal.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c
index 29be2712e560..a2dc75793bd5 100644
--- a/arch/powerpc/kernel/signal.c
+++ b/arch/powerpc/kernel/signal.c
@@ -131,7 +131,7 @@ static int do_signal(struct pt_regs *regs)
* triggered inside the kernel.
*/
if (current->thread.dabr)
- set_dabr(current->thread.dabr);
+ set_dabr(current->thread.dabr, current->thread.dabrx);
#endif
/* Re-enable the breakpoints for the signal stack */
thread_change_pc(current, regs);