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[Qemu-devel] [PATCH RFC v6 07/11] pc: add HW_COMPAT_2_2 to disable aerca


From: Chen Fan
Subject: [Qemu-devel] [PATCH RFC v6 07/11] pc: add HW_COMPAT_2_2 to disable aercap for vifo device
Date: Wed, 29 Apr 2015 16:48:35 +0800

for piix4 chipset, we don't need to expose aer, so introduce
HW_COMPAT_2_2 to disable aercap for all lower than 2.3.

Signed-off-by: Chen Fan <address@hidden>
---
 hw/i386/pc_q35.c    | 4 ++++
 include/hw/compat.h | 8 ++++++++
 2 files changed, 12 insertions(+)

diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index dcc17c0..ffd27a5 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -428,6 +428,10 @@ static QEMUMachine pc_q35_machine_v2_2 = {
     PC_Q35_2_2_MACHINE_OPTIONS,
     .name = "pc-q35-2.2",
     .init = pc_q35_init_2_2,
+    .compat_props = (GlobalProperty[]) {
+        HW_COMPAT_2_2,
+        { /* end of list */ }
+    },
 };
 
 #define PC_Q35_2_1_MACHINE_OPTIONS                      \
diff --git a/include/hw/compat.h b/include/hw/compat.h
index 313682a..5f90f0f 100644
--- a/include/hw/compat.h
+++ b/include/hw/compat.h
@@ -1,7 +1,15 @@
 #ifndef HW_COMPAT_H
 #define HW_COMPAT_H
 
+#define HW_COMPAT_2_2 \
+        {\
+            .driver   = "vfio-pci",\
+            .property = "x-aer",\
+            .value    = "off",\
+        }
+
 #define HW_COMPAT_2_1 \
+        HW_COMPAT_2_2, \
         {\
             .driver   = "intel-hda",\
             .property = "old_msi_addr",\
-- 
1.9.3




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