paravirtualize entry.S for ia64/xen by multi compile.
Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
arch/ia64/xen/Makefile | 2 +-
arch/ia64/xen/xen_pv_ops.c | 18 ++++++++++++++++++
include/asm-ia64/xen/inst.h | 8 ++++++++
3 files changed, 27 insertions(+), 1 deletions(-)
diff --git a/arch/ia64/xen/Makefile b/arch/ia64/xen/Makefile
index 5c87e4a..9b77e8a 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 aa73942..e483d47 100644
--- a/arch/ia64/xen/xen_pv_ops.c
+++ b/arch/ia64/xen/xen_pv_ops.c
@@ -273,6 +273,22 @@ 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
*/
@@ -284,4 +300,6 @@ 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);
}
diff --git a/include/asm-ia64/xen/inst.h b/include/asm-ia64/xen/inst.h
index e1e4435..9015bd3 100644
--- a/include/asm-ia64/xen/inst.h
+++ b/include/asm-ia64/xen/inst.h
@@ -25,6 +25,14 @@
#define ia64_ivt xen_ivt
#define DO_SAVE_MIN XEN_DO_SAVE_MIN
+#define __paravirt_switch_to xen_switch_to
+#define __paravirt_leave_syscall xen_leave_syscall
+#define __paravirt_work_processed_syscall xen_work_processed_syscall
+#define __paravirt_leave_kernel xen_leave_kernel
+#define __paravirt_pending_syscall_end xen_work_pending_syscall_end
+#define __paravirt_work_processed_syscall_target \
+ xen_work_processed_syscall
+
#define MOV_FROM_IFA(reg) \
movl reg = XSI_IFA; \
;; \
--
1.5.3
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