qemu/0002-qapi-types.py-Fix-enum-struct-sizes-on-i686.patch
Cole Robinson 9e0a86718c Fix qmp capabilities calls on i686 (bz #1003162)
Fix crash with -M isapc -cpu Haswell (bz #986790)
Fix crash in lsi_soft_reset (bz #1000947)
Fix initial /dev/kvm permissions (bz #993491)
2013-09-03 14:49:39 -04:00

39 lines
1.3 KiB
Diff

From f3e59ce7c471d3f0f1f293ecd0ef3e1797ce411f Mon Sep 17 00:00:00 2001
From: Cole Robinson <crobinso@redhat.com>
Date: Sat, 31 Aug 2013 18:25:01 -0400
Subject: [PATCH] qapi-types.py: Fix enum struct sizes on i686
Unlike other list types, enum wasn't adding any padding, which caused
a mismatch between the generated struct size and GenericList struct
size. More details in a678e26cbe89f7a27cbce794c2c2784571ee9d21
This crashed qemu if calling qmp query-tpm-types for example, which
upsets libvirt capabilities probing. Reproducer on i686:
(sleep 5; printf '{"execute":"qmp_capabilities"}\n{"execute":"query-tpm-types"}\n') | ./i386-softmmu/qemu-system-i386 -S -nodefaults -nographic -M none -qmp stdio
https://bugs.launchpad.net/qemu/+bug/1219207
Cc: qemu-stable@nongnu.org
(cherry picked from commit a9d960fb0b1bc104294ab965116a2d53038b4692)
---
scripts/qapi-types.py | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py
index 5ee46ea..5d31b06 100644
--- a/scripts/qapi-types.py
+++ b/scripts/qapi-types.py
@@ -51,7 +51,10 @@ def generate_fwd_enum_struct(name, members):
return mcgen('''
typedef struct %(name)sList
{
- %(name)s value;
+ union {
+ %(name)s value;
+ uint64_t padding;
+ };
struct %(name)sList *next;
} %(name)sList;
''',