diff options
| author | Juergen Gross <jgross@suse.com> | 2018-10-10 09:14:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-13 22:14:47 +0300 |
| commit | ed2df6687223bd1d7f82b19cbd52d79c4263ff0f (patch) | |
| tree | 80c706ccd5d401617ae014f09cf0d772d39b62df /arch/x86/xen | |
| parent | 8a13906ae519b3ed95cd0fb73f1098b46362f6c4 (diff) | |
| download | linux-ed2df6687223bd1d7f82b19cbd52d79c4263ff0f.tar.xz | |
x86/xen: Fix boot loader version reported for PVH guests
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 <jgross@suse.com>
Cc: <stable@vger.kernel.org> # 4.12
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: boris.ostrovsky@oracle.com
Cc: bp@alien8.de
Cc: corbet@lwn.net
Cc: linux-doc@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
Link: http://lkml.kernel.org/r/20181010061456.22238-2-jgross@suse.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/xen')
| -rw-r--r-- | arch/x86/xen/enlighten_pvh.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/xen/enlighten_pvh.c b/arch/x86/xen/enlighten_pvh.c index 7bd3ee08393e..d6d7b29b3be0 100644 --- a/arch/x86/xen/enlighten_pvh.c +++ b/arch/x86/xen/enlighten_pvh.c @@ -76,7 +76,7 @@ static void __init init_pvh_bootparams(void) * 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 */ } |