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[Qemu-devel] [PATCH v3 6/7] vmxnet3: Introduce 'x-disable-pcie' backword


From: Shmulik Ladkani
Subject: [Qemu-devel] [PATCH v3 6/7] vmxnet3: Introduce 'x-disable-pcie' backword compatability property
Date: Sat, 12 Dec 2015 14:00:43 +0200

Following the previous patch which changed vmxnet3 to be a pci express
device, this patch introduces a boolean property 'x-disable-pcie' whose
default is false.

Setting 'x-disable-pcie' to 'on' preserves the old 'pci device' (non
express) behavior. This allows migration to older versions.

Signed-off-by: Shmulik Ladkani <address@hidden>
---
 hw/net/vmxnet3.c    | 2 ++
 include/hw/compat.h | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c
index 7ded287..f9cd02b 100644
--- a/hw/net/vmxnet3.c
+++ b/hw/net/vmxnet3.c
@@ -2610,6 +2610,8 @@ static Property vmxnet3_properties[] = {
     DEFINE_NIC_PROPERTIES(VMXNET3State, conf),
     DEFINE_PROP_BIT("x-old-msi-offsets", VMXNET3State, compat_flags,
                     VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS_BIT, false),
+    DEFINE_PROP_BIT("x-disable-pcie", VMXNET3State, compat_flags,
+                    VMXNET3_COMPAT_FLAG_DISABLE_PCIE_BIT, false),
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/include/hw/compat.h b/include/hw/compat.h
index 01e326d..642b082 100644
--- a/include/hw/compat.h
+++ b/include/hw/compat.h
@@ -22,6 +22,10 @@
             .driver   = "vmxnet3",\
             .property = "x-old-msi-offsets",\
             .value    = "on",\
+        },{\
+            .driver   = "vmxnet3",\
+            .property = "x-disable-pcie",\
+            .value    = "on",\
         },
 
 #define HW_COMPAT_2_3 \
-- 
1.9.1




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