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KVM: PPC: Move KVM trampolines before __end_interrupts

When using a relocatable kernel we need to make sure that the trampline code
and the interrupt handlers are both copied to low memory. The only way to do
this reliably is to put them in the copied section.

This patch should make relocated kernels work with KVM.

KVM-Stable-Tag
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Alexander Graf 15 年之前
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共有 2 个文件被更改,包括 6 次插入6 次删除
  1. 6 0
      arch/powerpc/kernel/exceptions-64s.S
  2. 0 6
      arch/powerpc/kernel/head_64.S

+ 6 - 0
arch/powerpc/kernel/exceptions-64s.S

@@ -299,6 +299,12 @@ slb_miss_user_pseries:
 	b	.				/* prevent spec. execution */
 #endif /* __DISABLED__ */
 
+/* KVM's trampoline code needs to be close to the interrupt handlers */
+
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
+#include "../kvm/book3s_rmhandlers.S"
+#endif
+
 	.align	7
 	.globl	__end_interrupts
 __end_interrupts:

+ 0 - 6
arch/powerpc/kernel/head_64.S

@@ -166,12 +166,6 @@ exception_marker:
 #include "exceptions-64s.S"
 #endif
 
-/* KVM trampoline code needs to be close to the interrupt handlers */
-
-#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
-#include "../kvm/book3s_rmhandlers.S"
-#endif
-
 _GLOBAL(generic_secondary_thread_init)
 	mr	r24,r3