x86/xen: fix booting 32-bit pv guest

commit d6f34f4c6b4a962eb7a86c923fea206f866a40be upstream.

Commit 2f62f36e62daec ("x86/xen: Make the boot CPU idle task reliable")
introduced a regression for booting 32 bit Xen PV guests: the address
of the initial stack needs to be a virtual one.

Fixes: 2f62f36e62daec ("x86/xen: Make the boot CPU idle task reliable")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20200409070001.16675-1-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index 591544b4b85a2a4bc6aabd622cbc52bc2ed08ba3..142da8547480186ceaf3cf5993dc2abeaab026f4 100644 (file)
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -38,7 +38,7 @@ ENTRY(startup_xen)
 #ifdef CONFIG_X86_64
        mov initial_stack(%rip), %rsp
 #else
-       mov pa(initial_stack), %esp
+       mov initial_stack, %esp
 #endif
 
 #ifdef CONFIG_X86_64