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| author | Michael Neuling <mikey@neuling.org> | 2012-09-06 21:24:56 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-09-10 09:59:10 +1000 |
| commit | 4474ef055c5d8cb8eaf002d69e49af71e3aa3a88 (patch) | |
| tree | e57b99bfa78d7c3faf4125ab4a08f17fed2c41d8 /arch/powerpc/include/asm/hw_breakpoint.h | |
| parent | 3ab96a02e829131c19db8ed99239289acdb4e3dc (diff) | |
| download | talos-obmc-linux-4474ef055c5d8cb8eaf002d69e49af71e3aa3a88.tar.gz talos-obmc-linux-4474ef055c5d8cb8eaf002d69e49af71e3aa3a88.zip | |
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/include/asm/hw_breakpoint.h')
| -rw-r--r-- | arch/powerpc/include/asm/hw_breakpoint.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/hw_breakpoint.h b/arch/powerpc/include/asm/hw_breakpoint.h index 39b323e80c30..c6f48eb5299c 100644 --- a/arch/powerpc/include/asm/hw_breakpoint.h +++ b/arch/powerpc/include/asm/hw_breakpoint.h @@ -61,7 +61,7 @@ extern void ptrace_triggered(struct perf_event *bp, struct perf_sample_data *data, struct pt_regs *regs); static inline void hw_breakpoint_disable(void) { - set_dabr(0); + set_dabr(0, 0); } extern void thread_change_pc(struct task_struct *tsk, struct pt_regs *regs); |
