This is a note to let you know that I've just added the patch titled
x86/xen: Fix boot loader version reported for PVH guests
to the 4.14-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-boot-loader-version-reported-for-pvh-guests.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
From 357d291ce035d1b757568058f3c9898c60d125b1 Mon Sep 17 00:00:00 2001
From: Juergen Gross <[email protected]>
Date: Wed, 10 Oct 2018 08:14:54 +0200
Subject: x86/xen: Fix boot loader version reported for PVH guests
From: Juergen Gross <[email protected]>
commit 357d291ce035d1b757568058f3c9898c60d125b1 upstream.
The boot loader version reported via sysfs is wrong in case of the
kernel being booted via the Xen PVH boot entry. it should be 2.12
(0x020c), but it is reported to be 2.18 (0x0212).
As the current way to set the version is error prone use the more
readable variant (2 << 8) | 12.
Signed-off-by: Juergen Gross <[email protected]>
Cc: <[email protected]> # 4.12
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/xen/enlighten_pvh.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/xen/enlighten_pvh.c
+++ b/arch/x86/xen/enlighten_pvh.c
@@ -76,7 +76,7 @@ static void __init init_pvh_bootparams(v
* Version 2.12 supports Xen entry point but we will use default x86/PC
* environment (i.e. hardware_subarch 0).
*/
- pvh_bootparams.hdr.version = 0x212;
+ pvh_bootparams.hdr.version = (2 << 8) | 12;
pvh_bootparams.hdr.type_of_loader = (9 << 4) | 0; /* Xen loader */
}
Patches currently in stable-queue which might be from [email protected] are
queue-4.14/x86-xen-fix-boot-loader-version-reported-for-pvh-guests.patch
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