Xen paravirtualizes interrupt as event channel. This patch defines arch specific part of xen event channel. Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx> --- arch/ia64/include/asm/xen/events.h | 50 ++++++++++++++++++++++++++++++++++++ 1 files changed, 50 insertions(+), 0 deletions(-) create mode 100644 arch/ia64/include/asm/xen/events.h diff --git a/arch/ia64/include/asm/xen/events.h b/arch/ia64/include/asm/xen/events.h new file mode 100644 index 0000000..7324878 --- /dev/null +++ b/arch/ia64/include/asm/xen/events.h @@ -0,0 +1,50 @@ +/****************************************************************************** + * arch/ia64/include/asm/xen/events.h + * + * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> + * VA Linux Systems Japan K.K. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ +#ifndef _ASM_IA64_XEN_EVENTS_H +#define _ASM_IA64_XEN_EVENTS_H + +enum ipi_vector { + XEN_RESCHEDULE_VECTOR, + XEN_IPI_VECTOR, + XEN_CMCP_VECTOR, + XEN_CPEP_VECTOR, + + XEN_NR_IPIS, +}; + +static inline int xen_irqs_disabled(struct pt_regs *regs) +{ + return !(ia64_psr(regs)->i); +} + +static inline void xen_do_IRQ(int irq, struct pt_regs *regs) +{ + struct pt_regs *old_regs; + old_regs = set_irq_regs(regs); + irq_enter(); + __do_IRQ(irq); + irq_exit(); + set_irq_regs(old_regs); +} +#define irq_ctx_init(cpu) do { } while (0) + +#endif /* _ASM_IA64_XEN_EVENTS_H */ -- 1.6.0.rc0.42.g186458 -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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