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authorIsaku Yamahata <yamahata@valinux.co.jp>2008-10-17 11:18:04 +0900
committerTony Luck <tony.luck@intel.com>2008-10-17 10:05:46 -0700
commit16583bc0b4871299a60cbcdd1c6e102e3f9b8e4b (patch)
tree3c842ffd72058786b1487856234883825cdc1054 /arch/ia64/xen
parent5142ec4690943eefc86b01396addf70083a2b9fb (diff)
downloadlinux-16583bc0b4871299a60cbcdd1c6e102e3f9b8e4b.tar.bz2
ia64/pv_ops/xen: paravirtualize entry.S for ia64/xen.
paravirtualize entry.S for ia64/xen by multi compile. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/xen')
-rw-r--r--arch/ia64/xen/Makefile2
-rw-r--r--arch/ia64/xen/xen_pv_ops.c18
2 files changed, 19 insertions, 1 deletions
diff --git a/arch/ia64/xen/Makefile b/arch/ia64/xen/Makefile
index 5c87e4a79d39..9b77e8ae4f34 100644
--- a/arch/ia64/xen/Makefile
+++ b/arch/ia64/xen/Makefile
@@ -8,7 +8,7 @@ obj-y := hypercall.o xenivt.o xensetup.o xen_pv_ops.o \
AFLAGS_xenivt.o += -D__IA64_ASM_PARAVIRTUALIZED_XEN
# xen multi compile
-ASM_PARAVIRT_MULTI_COMPILE_SRCS = ivt.S
+ASM_PARAVIRT_MULTI_COMPILE_SRCS = ivt.S entry.S
ASM_PARAVIRT_OBJS = $(addprefix xen-,$(ASM_PARAVIRT_MULTI_COMPILE_SRCS:.S=.o))
obj-y += $(ASM_PARAVIRT_OBJS)
define paravirtualized_xen
diff --git a/arch/ia64/xen/xen_pv_ops.c b/arch/ia64/xen/xen_pv_ops.c
index c236f04ffad5..5b23cd5e9153 100644
--- a/arch/ia64/xen/xen_pv_ops.c
+++ b/arch/ia64/xen/xen_pv_ops.c
@@ -275,6 +275,22 @@ static const struct pv_cpu_ops xen_cpu_ops __initdata = {
= xen_intrin_local_irq_restore,
};
+/******************************************************************************
+ * replacement of hand written assembly codes.
+ */
+
+extern char xen_switch_to;
+extern char xen_leave_syscall;
+extern char xen_work_processed_syscall;
+extern char xen_leave_kernel;
+
+const struct pv_cpu_asm_switch xen_cpu_asm_switch = {
+ .switch_to = (unsigned long)&xen_switch_to,
+ .leave_syscall = (unsigned long)&xen_leave_syscall,
+ .work_processed_syscall = (unsigned long)&xen_work_processed_syscall,
+ .leave_kernel = (unsigned long)&xen_leave_kernel,
+};
+
/***************************************************************************
* pv_ops initialization
*/
@@ -286,4 +302,6 @@ xen_setup_pv_ops(void)
pv_info = xen_info;
pv_init_ops = xen_init_ops;
pv_cpu_ops = xen_cpu_ops;
+
+ paravirt_cpu_asm_init(&xen_cpu_asm_switch);
}