WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-ia64-devel

[Xen-ia64-devel] [PATCH 13/30] ia64/xen: add definitions necessary for x

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


_______________________________________________
Xen-ia64-devel mailing list
Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-ia64-devel

<Prev in Thread] Current Thread [Next in Thread>