[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH RFC 2/4] xen/pvhvm: Introduce xen_pvhvm_kexec_shutdown()
On Tue, Jul 15, 2014 at 03:40:38PM +0200, Vitaly Kuznetsov wrote: > PVHVM guest requires special actions before kexec. Register specific > xen_pvhvm_kexec_shutdown() handler for machine_ops.shutdown(). > This looks close to what I had sent as an RFC to you? > Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> > --- > arch/x86/xen/enlighten.c | 9 +++++++++ > arch/x86/xen/smp.c | 9 +++++++++ > arch/x86/xen/smp.h | 1 + > 3 files changed, 19 insertions(+) > > diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c > index a11af62..8074e4a 100644 > --- a/arch/x86/xen/enlighten.c > +++ b/arch/x86/xen/enlighten.c > @@ -1833,6 +1833,12 @@ static struct notifier_block xen_hvm_cpu_notifier = { > .notifier_call = xen_hvm_cpu_notify, > }; > > +static void xen_pvhvm_kexec_shutdown(void) > +{ > + xen_kexec_shutdown(); > + native_machine_shutdown(); > +} > + > static void __init xen_hvm_guest_init(void) > { > init_hvm_pv_info(); > @@ -1849,6 +1855,9 @@ static void __init xen_hvm_guest_init(void) > x86_init.irqs.intr_init = xen_init_IRQ; > xen_hvm_init_time_ops(); > xen_hvm_init_mmu_ops(); > +#ifdef CONFIG_KEXEC > + machine_ops.shutdown = xen_pvhvm_kexec_shutdown; > +#endif > } > > static uint32_t __init xen_hvm_platform(void) > diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c > index 7005974..35dcf39 100644 > --- a/arch/x86/xen/smp.c > +++ b/arch/x86/xen/smp.c > @@ -18,6 +18,7 @@ > #include <linux/smp.h> > #include <linux/irq_work.h> > #include <linux/tick.h> > +#include <linux/kexec.h> > > #include <asm/paravirt.h> > #include <asm/desc.h> > @@ -762,6 +763,14 @@ static void xen_hvm_cpu_die(unsigned int cpu) > native_cpu_die(cpu); > } > > +void xen_kexec_shutdown(void) > +{ > +#ifdef CONFIG_KEXEC > + if (!kexec_in_progress) > + return; > +#endif > +} > + > void __init xen_hvm_smp_init(void) > { > if (!xen_have_vector_callback) > diff --git a/arch/x86/xen/smp.h b/arch/x86/xen/smp.h > index c7c2d89..1af0493 100644 > --- a/arch/x86/xen/smp.h > +++ b/arch/x86/xen/smp.h > @@ -8,4 +8,5 @@ extern void xen_send_IPI_allbutself(int vector); > extern void xen_send_IPI_all(int vector); > extern void xen_send_IPI_self(int vector); > > +extern void xen_kexec_shutdown(void); > #endif > -- > 1.9.3 > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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