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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [patch 2/3] kexec: Add machine_kexec_get()
Introduce machine_kexec_get to allow architecture-specific handling of the
xen region. x86_64 is currently different to x86_32 and ia64. A subsequent
patch will make ia64 different from x86_32.
Signed-off-by: Simon Horman <horms@xxxxxxxxxxxx>
---
xen/arch/ia64/xen/machine_kexec.c | 15 +++++++++++++++
xen/arch/powerpc/machine_kexec.c | 6 ++++++
xen/arch/x86/machine_kexec.c | 10 ++++++++++
xen/arch/x86/x86_32/Makefile | 1 +
xen/arch/x86/x86_32/machine_kexec.c | 33 +++++++++++++++++++++++++++++++++
xen/arch/x86/x86_64/Makefile | 1 +
xen/arch/x86/x86_64/machine_kexec.c | 32 ++++++++++++++++++++++++++++++++
xen/common/kexec.c | 18 ++++--------------
xen/include/xen/kexec.h | 1 +
9 files changed, 103 insertions(+), 14 deletions(-)
Index: xen-unstable.hg/xen/arch/ia64/xen/machine_kexec.c
===================================================================
--- xen-unstable.hg.orig/xen/arch/ia64/xen/machine_kexec.c 2008-02-25
17:01:38.000000000 +0900
+++ xen-unstable.hg/xen/arch/ia64/xen/machine_kexec.c 2008-02-25
17:37:10.000000000 +0900
@@ -162,6 +162,21 @@ void machine_reboot_kexec(xen_kexec_imag
machine_kexec(image);
}
+static int machine_kexec_get_xen(xen_kexec_range_t *range)
+{
+ range->start = virt_to_maddr(_start);
+ range->size = (unsigned long)xenheap_phys_end -
+ (unsigned long)range->start;
+ return 0;
+}
+
+int machine_kexec_get(xen_kexec_range_t *range)
+{
+ if (range->range != KEXEC_RANGE_MA_XEN)
+ return -EINVAL;
+ return machine_kexec_get_xen(range);
+}
+
/*
* Local variables:
* mode: C
Index: xen-unstable.hg/xen/arch/powerpc/machine_kexec.c
===================================================================
--- xen-unstable.hg.orig/xen/arch/powerpc/machine_kexec.c 2008-02-25
17:01:38.000000000 +0900
+++ xen-unstable.hg/xen/arch/powerpc/machine_kexec.c 2008-02-25
17:11:39.000000000 +0900
@@ -24,6 +24,12 @@ void machine_kexec(xen_kexec_image_t *im
printk("STUB: " __FILE__ ": %s: not implemented\n", __FUNCTION__);
}
+int machine_kexec_get(xen_kexec_image_t *image)
+{
+ printk("STUB: " __FILE__ ": %s: not implemented\n", __FUNCTION__);
+ return -1;
+}
+
/*
* Local variables:
* mode: C
Index: xen-unstable.hg/xen/common/kexec.c
===================================================================
--- xen-unstable.hg.orig/xen/common/kexec.c 2008-02-25 17:04:20.000000000
+0900
+++ xen-unstable.hg/xen/common/kexec.c 2008-02-25 17:08:53.000000000 +0900
@@ -20,6 +20,7 @@
#include <xen/spinlock.h>
#include <xen/version.h>
#include <xen/console.h>
+#include <xen/kexec.h>
#include <public/elfnote.h>
#include <xsm/xsm.h>
@@ -164,17 +165,6 @@ static int kexec_get_reserve(xen_kexec_r
return 0;
}
-static int kexec_get_xen(xen_kexec_range_t *range)
-{
-#ifdef CONFIG_X86_64
- range->start = xenheap_phys_start;
-#else
- range->start = virt_to_maddr(_start);
-#endif
- range->size = (unsigned long)xenheap_phys_end - (unsigned
long)range->start;
- return 0;
-}
-
static int kexec_get_cpu(xen_kexec_range_t *range)
{
int nr = range->nr;
@@ -228,12 +218,12 @@ static int kexec_get_range_internal(xen_
case KEXEC_RANGE_MA_CRASH:
ret = kexec_get_reserve(range);
break;
- case KEXEC_RANGE_MA_XEN:
- ret = kexec_get_xen(range);
- break;
case KEXEC_RANGE_MA_CPU:
ret = kexec_get_cpu(range);
break;
+ default:
+ ret = machine_kexec_get(range);
+ break;
}
return ret;
Index: xen-unstable.hg/xen/arch/x86/machine_kexec.c
===================================================================
--- xen-unstable.hg.orig/xen/arch/x86/machine_kexec.c 2008-02-25
17:01:38.000000000 +0900
+++ xen-unstable.hg/xen/arch/x86/machine_kexec.c 2008-02-25
17:11:55.000000000 +0900
@@ -24,6 +24,9 @@ typedef void (*relocate_new_kernel_t)(
unsigned long *page_list,
unsigned long start_address);
+extern int machine_kexec_get_xen(xen_kexec_range_t *range);
+
+
int machine_kexec_load(int type, int slot, xen_kexec_image_t *image)
{
unsigned long prev_ma = 0;
@@ -135,6 +138,13 @@ void machine_kexec(xen_kexec_image_t *im
}
}
+int machine_kexec_get(xen_kexec_range_t *range)
+{
+ if (range->range != KEXEC_RANGE_MA_XEN)
+ return -EINVAL;
+ return machine_kexec_get_xen(range);
+}
+
/*
* Local variables:
* mode: C
Index: xen-unstable.hg/xen/arch/x86/x86_32/Makefile
===================================================================
--- xen-unstable.hg.orig/xen/arch/x86/x86_32/Makefile 2008-02-25
17:01:38.000000000 +0900
+++ xen-unstable.hg/xen/arch/x86/x86_32/Makefile 2008-02-25
17:08:10.000000000 +0900
@@ -4,6 +4,7 @@ obj-y += gpr_switch.o
obj-y += mm.o
obj-y += seg_fixup.o
obj-y += traps.o
+obj-y += machine_kexec.o
obj-$(crash_debug) += gdbstub.o
Index: xen-unstable.hg/xen/arch/x86/x86_32/machine_kexec.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ xen-unstable.hg/xen/arch/x86/x86_32/machine_kexec.c 2008-02-25
17:08:10.000000000 +0900
@@ -0,0 +1,33 @@
+/******************************************************************************
+ * machine_kexec.c
+ *
+ * Xen port written by:
+ * - Simon 'Horms' Horman <horms@xxxxxxxxxxxx>
+ * - Magnus Damm <magnus@xxxxxxxxxxxxx>
+ */
+
+#ifndef CONFIG_COMPAT
+
+#include <xen/types.h>
+#include <xen/kernel.h>
+#include <asm/page.h>
+#include <public/kexec.h>
+
+int machine_kexec_get_xen(xen_kexec_range_t *range)
+{
+ range->start = virt_to_maddr(_start);
+ range->size = (unsigned long)xenheap_phys_end -
+ (unsigned long)range->start;
+ return 0;
+}
+#endif
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
Index: xen-unstable.hg/xen/include/xen/kexec.h
===================================================================
--- xen-unstable.hg.orig/xen/include/xen/kexec.h 2008-02-25
17:01:38.000000000 +0900
+++ xen-unstable.hg/xen/include/xen/kexec.h 2008-02-25 17:08:10.000000000
+0900
@@ -31,6 +31,7 @@ void kexec_disable_iosapic(void);
void kexec_crash_save_cpu(void);
crash_xen_info_t *kexec_crash_save_info(void);
void machine_crash_shutdown(void);
+int machine_kexec_get(xen_kexec_range_t *range);
#endif /* __XEN_KEXEC_H__ */
Index: xen-unstable.hg/xen/arch/x86/x86_64/Makefile
===================================================================
--- xen-unstable.hg.orig/xen/arch/x86/x86_64/Makefile 2008-02-25
17:01:38.000000000 +0900
+++ xen-unstable.hg/xen/arch/x86/x86_64/Makefile 2008-02-25
17:11:06.000000000 +0900
@@ -4,6 +4,7 @@ obj-y += entry.o
obj-y += gpr_switch.o
obj-y += mm.o
obj-y += traps.o
+obj-y += machine_kexec.o
obj-$(crash_debug) += gdbstub.o
obj-$(CONFIG_COMPAT) += compat.o
Index: xen-unstable.hg/xen/arch/x86/x86_64/machine_kexec.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ xen-unstable.hg/xen/arch/x86/x86_64/machine_kexec.c 2008-02-25
17:08:10.000000000 +0900
@@ -0,0 +1,32 @@
+/******************************************************************************
+ * machine_kexec.c
+ *
+ * Xen port written by:
+ * - Simon 'Horms' Horman <horms@xxxxxxxxxxxx>
+ * - Magnus Damm <magnus@xxxxxxxxxxxxx>
+ */
+
+#ifndef CONFIG_COMPAT
+
+#include <xen/types.h>
+#include <asm/page.h>
+#include <public/kexec.h>
+
+int machine_kexec_get_xen(xen_kexec_range_t *range)
+{
+ range->start = xenheap_phys_start;
+ range->size = (unsigned long)xenheap_phys_end -
+ (unsigned long)range->start;
+ return 0;
+}
+#endif
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--
--
Horms
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