Message ID | 1372921067-19678-2-git-send-email-Bharat.Bhushan@freescale.com (mailing list archive) |
---|---|
State | Accepted, archived |
Commit | 3743c9b8ceb638b6e4b78b42f2262e22aa6359f0 |
Delegated to: | Scott Wood |
Headers | show |
On 04.07.2013, at 08:57, 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@freescale.com> Ben / Michael, please ack. Alex > --- > v5->v6 > - switch_booke_debug_regs() not guarded by the compiler switch > > arch/powerpc/include/asm/switch_to.h | 1 + > arch/powerpc/kernel/process.c | 3 ++- > 2 files changed, 3 insertions(+), 1 deletions(-) > > diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h > index 200d763..db68f1d 100644 > --- a/arch/powerpc/include/asm/switch_to.h > +++ b/arch/powerpc/include/asm/switch_to.h > @@ -29,6 +29,7 @@ extern void giveup_vsx(struct task_struct *); > extern void enable_kernel_spe(void); > extern void giveup_spe(struct task_struct *); > extern void load_up_spe(struct task_struct *); > +extern void switch_booke_debug_regs(struct thread_struct *new_thread); > > #ifndef CONFIG_SMP > extern void discard_lazy_cpu_state(void); > diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c > index 01ff496..da586aa 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_GPL(switch_booke_debug_regs); > #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@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
Alexander Graf <agraf@suse.de> wrote: > > On 04.07.2013, at 08:57, 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@freescale.com> > > Ben / Michael, please ack. It's not really my area of expertise, but it applies and compiles for me and it's relatively simple, so FWIW... Acked-by: Michael Neuling <mikey@neuling.org> > > > Alex > > > --- > > v5->v6 > > - switch_booke_debug_regs() not guarded by the compiler switch > > > > arch/powerpc/include/asm/switch_to.h | 1 + > > arch/powerpc/kernel/process.c | 3 ++- > > 2 files changed, 3 insertions(+), 1 deletions(-) > > > > diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h > > index 200d763..db68f1d 100644 > > --- a/arch/powerpc/include/asm/switch_to.h > > +++ b/arch/powerpc/include/asm/switch_to.h > > @@ -29,6 +29,7 @@ extern void giveup_vsx(struct task_struct *); > > extern void enable_kernel_spe(void); > > extern void giveup_spe(struct task_struct *); > > extern void load_up_spe(struct task_struct *); > > +extern void switch_booke_debug_regs(struct thread_struct *new_thread); > > > > #ifndef CONFIG_SMP > > extern void discard_lazy_cpu_state(void); > > diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c > > index 01ff496..da586aa 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_GPL(switch_booke_debug_regs); > > #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@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html >
diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h index 200d763..db68f1d 100644 --- a/arch/powerpc/include/asm/switch_to.h +++ b/arch/powerpc/include/asm/switch_to.h @@ -29,6 +29,7 @@ extern void giveup_vsx(struct task_struct *); extern void enable_kernel_spe(void); extern void giveup_spe(struct task_struct *); extern void load_up_spe(struct task_struct *); +extern void switch_booke_debug_regs(struct thread_struct *new_thread); #ifndef CONFIG_SMP extern void discard_lazy_cpu_state(void); diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 01ff496..da586aa 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_GPL(switch_booke_debug_regs); #else /* !CONFIG_PPC_ADV_DEBUG_REGS */ #ifndef CONFIG_HAVE_HW_BREAKPOINT static void set_debug_reg_defaults(struct thread_struct *thread)
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@freescale.com> --- v5->v6 - switch_booke_debug_regs() not guarded by the compiler switch arch/powerpc/include/asm/switch_to.h | 1 + arch/powerpc/kernel/process.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletions(-)