This is a note to let you know that I've just added the patch titled
x86/xen: fix booting 32-bit pv guest
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-xen-fix-booting-32-bit-pv-guest.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d6f34f4c6b4a962eb7a86c923fea206f866a40be Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@xxxxxxxx>
Date: Thu, 9 Apr 2020 09:00:01 +0200
Subject: x86/xen: fix booting 32-bit pv guest
From: Juergen Gross <jgross@xxxxxxxx>
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@xxxxxxxx>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20200409070001.16675-1-jgross@xxxxxxxx
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/xen/xen-head.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- 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
Patches currently in stable-queue which might be from jgross@xxxxxxxx are
queue-5.4/x86-xen-mark-cpu_bringup_and_idle-as-dead_end_function.patch
queue-5.4/x86-xen-make-the-secondary-cpu-idle-tasks-reliable.patch
queue-5.4/x86-xen-fix-booting-32-bit-pv-guest.patch
queue-5.4/x86-xen-make-the-boot-cpu-idle-task-reliable.patch
