> -----Original Message----- > From: Alexander Graf [mailto:agraf@xxxxxxx] > Sent: Monday, June 24, 2013 3:03 PM > To: Bhushan Bharat-R65777 > Cc: kvm-ppc@xxxxxxxxxxxxxxx; kvm@xxxxxxxxxxxxxxx; Wood Scott-B07421; > tiejun.chen@xxxxxxxxxxxxx; Bhushan Bharat-R65777 > Subject: Re: [PATCH 3/6 v5] powerpc: export debug register save function for KVM > > > 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 <bharat.bhushan@xxxxxxxxxxxxx> > > --- > > 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? Oops, I missed this comment. Will correct in next version. -Bharat > > > 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 majordomo@xxxxxxxxxxxxxxx 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 majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
