On 24.06.2013, at 11:08, Bharat Bhushan wrote: > KVM need this function when switching from vcpu to user-space > thread. My subsequent patch will use this function. > > Signed-off-by: Bharat Bhushan <[email protected]> > --- > arch/powerpc/include/asm/switch_to.h | 4 ++++ > arch/powerpc/kernel/process.c | 3 ++- > 2 files changed, 6 insertions(+), 1 deletions(-) > > diff --git a/arch/powerpc/include/asm/switch_to.h > b/arch/powerpc/include/asm/switch_to.h > index 200d763..50b357f 100644 > --- a/arch/powerpc/include/asm/switch_to.h > +++ b/arch/powerpc/include/asm/switch_to.h > @@ -30,6 +30,10 @@ extern void enable_kernel_spe(void); > extern void giveup_spe(struct task_struct *); > extern void load_up_spe(struct task_struct *); > > +#ifdef CONFIG_PPC_ADV_DEBUG_REGS > +extern void switch_booke_debug_regs(struct thread_struct *new_thread); > +#endif > + > #ifndef CONFIG_SMP > extern void discard_lazy_cpu_state(void); > #else > diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c > index 01ff496..3375cb7 100644 > --- a/arch/powerpc/kernel/process.c > +++ b/arch/powerpc/kernel/process.c > @@ -362,12 +362,13 @@ static void prime_debug_regs(struct thread_struct > *thread) > * debug registers, set the debug registers from the values > * stored in the new thread. > */ > -static void switch_booke_debug_regs(struct thread_struct *new_thread) > +void switch_booke_debug_regs(struct thread_struct *new_thread) > { > if ((current->thread.debug.dbcr0 & DBCR0_IDM) > || (new_thread->debug.dbcr0 & DBCR0_IDM)) > prime_debug_regs(new_thread); > } > +EXPORT_SYMBOL(switch_booke_debug_regs);
EXPORT_SYMBOL_GPL? Alex > #else /* !CONFIG_PPC_ADV_DEBUG_REGS */ > #ifndef CONFIG_HAVE_HW_BREAKPOINT > static void set_debug_reg_defaults(struct thread_struct *thread) > -- > 1.7.0.4 > > > -- > To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
