[PATCH V4 1/3] x86/Hyper-V: Fix definition of struct hv_vp_assist_page

[lantianyu1986]

From: Tianyu Lan <tianyu....@microsoft.com>

The struct hv_vp_assist_page was defined incorrectly.
The "vtl_control" should be u64[3], "nested_enlightenments
_control" should be a u64 and there are 7 reserved bytes
following "enlighten_vmentry". Fix the definition.

Signed-off-by: Tianyu Lan <tianyu....@microsoft.com>
---
Change since v3:
        - Update changelog 
Change since v1:
        - Move definition of struct hv_nested_enlightenments_control
       into this patch to fix offset issue.
---
 arch/x86/include/asm/hyperv-tlfs.h | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/arch/x86/include/asm/hyperv-tlfs.h 
b/arch/x86/include/asm/hyperv-tlfs.h
index af78cd72b8f3..cf0b2a04271d 100644
--- a/arch/x86/include/asm/hyperv-tlfs.h
+++ b/arch/x86/include/asm/hyperv-tlfs.h
@@ -514,14 +514,24 @@ struct hv_timer_message_payload {
        __u64 delivery_time;    /* When the message was delivered */
 } __packed;
 
+struct hv_nested_enlightenments_control {
+       struct {
+               __u32 directhypercall:1;
+               __u32 reserved:31;
+       } features;
+       struct {
+               __u32 reserved;
+       } hypercallControls;
+} __packed;
+
 /* Define virtual processor assist page structure. */
 struct hv_vp_assist_page {
        __u32 apic_assist;
-       __u32 reserved;
-       __u64 vtl_control[2];
-       __u64 nested_enlightenments_control[2];
-       __u32 enlighten_vmentry;
-       __u32 padding;
+       __u32 reserved1;
+       __u64 vtl_control[3];
+       struct hv_nested_enlightenments_control nested_control;
+       __u8 enlighten_vmentry;
+       __u8 reserved2[7];
        __u64 current_nested_vmcs;
 } __packed;
 
-- 
2.14.5