8353b00f61
Xen paravirtualizes interrupt as event channel. This patch defines arch specific part of xen event channel. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/******************************************************************************
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* arch/ia64/include/asm/xen/events.h
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*
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* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
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* VA Linux Systems Japan K.K.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef _ASM_IA64_XEN_EVENTS_H
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#define _ASM_IA64_XEN_EVENTS_H
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enum ipi_vector {
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XEN_RESCHEDULE_VECTOR,
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XEN_IPI_VECTOR,
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XEN_CMCP_VECTOR,
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XEN_CPEP_VECTOR,
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XEN_NR_IPIS,
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};
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static inline int xen_irqs_disabled(struct pt_regs *regs)
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{
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return !(ia64_psr(regs)->i);
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}
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static inline void xen_do_IRQ(int irq, struct pt_regs *regs)
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{
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struct pt_regs *old_regs;
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old_regs = set_irq_regs(regs);
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irq_enter();
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__do_IRQ(irq);
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irq_exit();
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set_irq_regs(old_regs);
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}
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#define irq_ctx_init(cpu) do { } while (0)
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#endif /* _ASM_IA64_XEN_EVENTS_H */
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