On 16 March 2018 at 20:31, Aaron Lindsay <alind...@codeaurora.org> wrote: > It was shifted to the left one bit too few. > > Signed-off-by: Aaron Lindsay <alind...@codeaurora.org> > --- > target/arm/helper.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/target/arm/helper.c b/target/arm/helper.c > index 50eaed7..0102357 100644 > --- a/target/arm/helper.c > +++ b/target/arm/helper.c > @@ -1123,7 +1123,7 @@ static void pmccfiltr_write(CPUARMState *env, const > ARMCPRegInfo *ri, > uint64_t value) > { > uint64_t saved_cycles = pmccntr_op_start(env); > - env->cp15.pmccfiltr_el0 = value & 0x7E000000; > + env->cp15.pmccfiltr_el0 = value & 0xfc000000; > pmccntr_op_finish(env, saved_cycles); > } >
I wonder why we got that one wrong. Reviewed-by: Peter Maydell <peter.mayd...@linaro.org> Strictly speaking, bit 26 (M) should be visible only in the AArch64 view of the register, not the AArch32 one, but that's a separate issue. thanks -- PMM