[PATCH 2/4] bus/vmbus: Define Hyper-V page size

[longli at linuxonhyperv.com]

From: Long Li <longli at microsoft.com>

Hyper-V uses 4k page size, regardless of the system page size used. Define
Hyper-V page size for use in drivers.

Fixes: 831dba47bd ("bus/vmbus: add Hyper-V virtual bus support")
Cc: stable at dpdk.org
Signed-off-by: Long Li <longli at microsoft.com>
---
 drivers/bus/vmbus/bus_vmbus_driver.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/bus/vmbus/bus_vmbus_driver.h b/drivers/bus/vmbus/bus_vmbus_driver.h
index bc394208de..0a56275437 100644
--- a/drivers/bus/vmbus/bus_vmbus_driver.h
+++ b/drivers/bus/vmbus/bus_vmbus_driver.h
@@ -14,6 +14,10 @@
 extern "C" {
 #endif
 
+#define HYPERV_PAGE_SHIFT 12
+#define HYPERV_PAGE_SIZE (1 << HYPERV_PAGE_SHIFT)
+#define HYPERV_PAGE_MASK (HYPERV_PAGE_SIZE - 1)
+
 struct vmbus_channel;
 struct vmbus_mon_page;
 
-- 
2.34.1