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authorK. Y. Srinivasan <kys@microsoft.com>2017-01-19 21:51:49 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-20 16:48:03 +0300
commit73638cddaad861a5ebb2b119d8b318d4bded8f8d (patch)
treee9d9d003f6b14b8fd7d29b4e99f2aa174659bd50 /drivers/hv
parentd058fa7e98ff01a4b4750a2210fc19906db3cbe1 (diff)
downloadlinux-73638cddaad861a5ebb2b119d8b318d4bded8f8d.tar.xz
Drivers: hv: vmbus: Move the check for hypercall page setup
As part of the effort to separate out architecture specific code, move the check for detecting if the hypercall page is setup. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/hv.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 9985a347ed03..d28a8731baa0 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -49,7 +49,6 @@ struct hv_context hv_context = {
*/
int hv_init(void)
{
- union hv_x64_msr_hypercall_contents hypercall_msr;
memset(hv_context.synic_event_page, 0, sizeof(void *) * NR_CPUS);
memset(hv_context.synic_message_page, 0,
@@ -65,11 +64,7 @@ int hv_init(void)
memset(hv_context.clk_evt, 0,
sizeof(void *) * NR_CPUS);
- /* See if the hypercall page is already set */
- hypercall_msr.as_uint64 = 0;
- rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
-
- if (!hypercall_msr.enable)
+ if (!hv_is_hypercall_page_setup())
return -ENOTSUPP;
return 0;