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From: longli@linuxonhyperv.com
To: Stephen Hemminger <stephen@networkplumber.org>, Wei Hu <weh@microsoft.com>
Cc: dev@dpdk.org,
Long Li <longli@microsoft.com>,
stable@dpdk.org
Subject: [PATCH 2/4] bus/vmbus: Define Hyper-V page size
Date: Fri, 18 Apr 2025 12:32:48 -0700
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From: Long Li <longli@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@dpdk.org
Signed-off-by: Long Li <longli@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