[RFC PATCH V2 09/18] x86/hyperv: set target vtl in the vmbus init message

From: Tianyu Lan
Date: Fri Nov 18 2022 - 22:47:35 EST


From: Tianyu Lan <tiala@xxxxxxxxxxxxx>

Set target vtl (Virtual Trust Level) in the vmbus init message.

Signed-off-by: Tianyu Lan <tiala@xxxxxxxxxxxxx>
---
drivers/hv/connection.c | 1 +
include/linux/hyperv.h | 4 ++--
2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 43141225ea15..09a1253b539a 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -98,6 +98,7 @@ int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo, u32 version)
*/
if (version >= VERSION_WIN10_V5) {
msg->msg_sint = VMBUS_MESSAGE_SINT;
+ msg->msg_vtl = ms_hyperv.vtl;
vmbus_connection.msg_conn_id = VMBUS_MESSAGE_CONNECTION_ID_4;
} else {
msg->interrupt_page = virt_to_phys(vmbus_connection.int_page);
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 3b42264333ef..2be0b5efd1ea 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -665,8 +665,8 @@ struct vmbus_channel_initiate_contact {
u64 interrupt_page;
struct {
u8 msg_sint;
- u8 padding1[3];
- u32 padding2;
+ u8 msg_vtl;
+ u8 reserved[6];
};
};
u64 monitor_page1;
--
2.25.1