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

From: lantianyu1986
Date: Fri Aug 09 2019 - 05:50:15 EST


From: Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx>

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 is 7 reserved bytes following "enlighten_vmentry".
This patch is to fix it.

Signed-off-by: Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx>
---
arch/x86/include/asm/hyperv-tlfs.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h
index af78cd72b8f3..a79703c56ebe 100644
--- a/arch/x86/include/asm/hyperv-tlfs.h
+++ b/arch/x86/include/asm/hyperv-tlfs.h
@@ -517,11 +517,11 @@ struct hv_timer_message_payload {
/* Define virtual processor assist page structure. */
struct hv_vp_assist_page {
__u32 apic_assist;
- __u32 reserved;
- __u64 vtl_control[2];
+ __u32 reserved1;
+ __u64 vtl_control[3];
__u64 nested_enlightenments_control[2];
- __u32 enlighten_vmentry;
- __u32 padding;
+ __u8 enlighten_vmentry;
+ __u8 reserved2[7];
__u64 current_nested_vmcs;
} __packed;

--
2.14.2