Messages in this thread | | | Date | Wed, 24 Apr 2013 23:14:28 +0100 | From | Stefano Stabellini <> | Subject | Re: [PATCH v4 7/7] mach-virt: support Xen hypercalls for shutdown and reboot |
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On Wed, 24 Apr 2013, Stefano Stabellini wrote: > Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> > CC: Marc Zyngier <marc.zyngier@arm.com> > CC: will.deacon@arm.com > CC: arnd@arndb.de > CC: rob.herring@calxeda.com
Thinking twice about this patch, a less intrusive alternative would be to set arm_pm_restart and pm_power_off to two xen specific functions later on from xen_guest_init.
> arch/arm/mach-virt/virt.c | 32 ++++++++++++++++++++++++++++++++ > 1 files changed, 32 insertions(+), 0 deletions(-) > > diff --git a/arch/arm/mach-virt/virt.c b/arch/arm/mach-virt/virt.c > index 528c05e..ba14321 100644 > --- a/arch/arm/mach-virt/virt.c > +++ b/arch/arm/mach-virt/virt.c > @@ -23,13 +23,44 @@ > #include <linux/of_platform.h> > #include <linux/smp.h> > > +#include <xen/xen.h> > +#include <xen/interface/sched.h> > + > #include <asm/arch_timer.h> > #include <asm/mach/arch.h> > #include <asm/mach/time.h> > +#include <asm/xen/hypercall.h> > + > +static void virt_restart(char str, const char *cmd) > +{ > +#ifdef CONFIG_XEN > + if (xen_domain()) { > + struct sched_shutdown r = { .reason = SHUTDOWN_reboot }; > + int rc; > + rc = HYPERVISOR_sched_op(SCHEDOP_shutdown, &r); > + if (rc) > + BUG(); > + } > +#endif > +} > + > +static void virt_power_off(void) > +{ > +#ifdef CONFIG_XEN > + if (xen_domain()) { > + struct sched_shutdown r = { .reason = SHUTDOWN_poweroff }; > + int rc; > + rc = HYPERVISOR_sched_op(SCHEDOP_shutdown, &r); > + if (rc) > + BUG(); > + } > +#endif > +} > > static void __init virt_init(void) > { > of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); > + pm_power_off = virt_power_off; > } > > static void __init virt_timer_init(void) > @@ -52,4 +83,5 @@ DT_MACHINE_START(VIRT, "Dummy Virtual Machine") > .init_machine = virt_init, > .smp = smp_ops(virt_smp_ops), > .dt_compat = virt_dt_match, > + .restart = virt_restart, > MACHINE_END > -- > 1.7.2.5 >
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