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ia64/pv_ops/xen: paravirtualize entry.S for ia64/xen.

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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>
This commit is contained in:
Isaku Yamahata 2008-10-17 11:18:04 +09:00 committed by Tony Luck
parent 5142ec4690
commit 16583bc0b4
3 changed files with 27 additions and 1 deletions
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8
arch/ia64/include/asm/xen/inst.h
View File

@ -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; \
;; \

2
arch/ia64/xen/Makefile
View File

@ -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

18
arch/ia64/xen/xen_pv_ops.c
View File

@ -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);
}