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authorDavid S. Miller <davem@davemloft.net>2017-12-09 22:09:55 -0500
committerDavid S. Miller <davem@davemloft.net>2017-12-09 22:09:55 -0500
commit51e18a453f5f59a40c721d4aeab082b4e2e9fac6 (patch)
tree540d37e6f7a83466677ab6095fcdd2d6f72583c4 /arch/x86/mm/extable.c
parent5e54b3c1202765ae62de24a160f1eaf6b0ebf9d4 (diff)
parentf335195adf043168ee69d78ea72ac3e30f0c57ce (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflict was two parallel additions of include files to sch_generic.c, no biggie. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/x86/mm/extable.c')
-rw-r--r--arch/x86/mm/extable.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
index 3321b446b66c..9fe656c42aa5 100644
--- a/arch/x86/mm/extable.c
+++ b/arch/x86/mm/extable.c
@@ -1,6 +1,7 @@
#include <linux/extable.h>
#include <linux/uaccess.h>
#include <linux/sched/debug.h>
+#include <xen/xen.h>
#include <asm/fpu/internal.h>
#include <asm/traps.h>
@@ -82,7 +83,7 @@ bool ex_handler_refcount(const struct exception_table_entry *fixup,
return true;
}
-EXPORT_SYMBOL_GPL(ex_handler_refcount);
+EXPORT_SYMBOL(ex_handler_refcount);
/*
* Handler for when we fail to restore a task's FPU state. We should never get
@@ -212,8 +213,9 @@ void __init early_fixup_exception(struct pt_regs *regs, int trapnr)
* Old CPUs leave the high bits of CS on the stack
* undefined. I'm not sure which CPUs do this, but at least
* the 486 DX works this way.
+ * Xen pv domains are not using the default __KERNEL_CS.
*/
- if (regs->cs != __KERNEL_CS)
+ if (!xen_pv_domain() && regs->cs != __KERNEL_CS)
goto fail;
/*