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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-10-10 13:30:47 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-21 09:17:10 -0700
commitd62c80f1f9146816e91921ded8f982cfc3491f4d (patch)
treed216a76de6e94372caa3aedf893fc2ff62b8e275
parent57bbd13f0b70c424ae4053d0ab7262fe9ff88ab8 (diff)
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xen/bootup: allow read_tscp call for Xen PV guests.
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 <konrad.wilk@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/x86/xen/enlighten.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 185a0d6349c..9f808afe0d1 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -989,6 +989,8 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
.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