[32on64 kexec] Add an explicit local branch after re-enabling paging

in 32 bit mode.

While it doesn't appear to be strictly required the documentation
calls for it. Thanks to Edwin Zhai for bringing the omission to my
attention.

Signed-off-by: Ian Campbell <ian.campbell@xensource.com>

diff --git a/xen/arch/x86/x86_64/compat_kexec.S b/xen/arch/x86/x86_64/compat_kexec.S
index 54b51437f858f6c51e679b8b163782b479957638..da3136f886901d37732deb2a7e83c68306f4e56d 100644 (file)
--- a/xen/arch/x86/x86_64/compat_kexec.S
+++ b/xen/arch/x86/x86_64/compat_kexec.S
@@ -144,6 +144,8 @@ compatibility_mode:
         movl %cr0, %eax
         orl $X86_CR0_PG, %eax
         movl %eax, %cr0
+        jmp 1f
+1:
 
         popl %eax
         call *%eax