This is a note to let you know that I've just added the patch titled
xen/bootup: allow read_tscp call for Xen PV guests.
to the 3.0-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:
xen-bootup-allow-read_tscp-call-for-xen-pv-guests.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From cd0608e71e9757f4dae35bcfb4e88f4d1a03a8ab Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <[email protected]>
Date: Wed, 10 Oct 2012 13:30:47 -0400
Subject: xen/bootup: allow read_tscp call for Xen PV guests.
From: Konrad Rzeszutek Wilk <[email protected]>
commit cd0608e71e9757f4dae35bcfb4e88f4d1a03a8ab upstream.
The hypervisor will trap it. However without this patch,
we would crash as the .read_tscp is set to NULL. This patch
fixes it and sets it to the native_read_tscp call.
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/xen/enlighten.c | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -989,6 +989,8 @@ static const struct pv_cpu_ops xen_cpu_o
.read_tsc = native_read_tsc,
.read_pmc = native_read_pmc,
+ .read_tscp = native_read_tscp,
+
.iret = xen_iret,
.irq_enable_sysexit = xen_sysexit,
#ifdef CONFIG_X86_64
Patches currently in stable-queue which might be from [email protected] are
queue-3.0/xen-bootup-allow-read_tscp-call-for-xen-pv-guests.patch
queue-3.0/xen-bootup-allow-read-write-_cr8-pvops-call.patch
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