Blame SOURCES/kvm-qapi-types.py-Fix-enum-struct-sizes-on-i686.patch

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From 8c58dddfb0bdd43600840ff14b03b42bacfea18c Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Tue, 5 Nov 2013 14:08:56 +0100
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Subject: [PATCH 43/87] qapi-types.py: Fix enum struct sizes on i686
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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Message-id: <1383660558-32096-3-git-send-email-kwolf@redhat.com>
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Patchwork-id: 55381
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O-Subject: [RHEL-7.0 qemu-kvm PATCH 02/24] qapi-types.py: Fix enum struct sizes on i686
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Bugzilla: 978402
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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From: Cole Robinson <crobinso@redhat.com>
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Unlike other list types, enum wasn't adding any padding, which caused
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a mismatch between the generated struct size and GenericList struct
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size. More details in a678e26cbe89f7a27cbce794c2c2784571ee9d21
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This crashed qemu if calling qmp query-tpm-types for example, which
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upsets libvirt capabilities probing. Reproducer on i686:
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(sleep 5; printf '{"execute":"qmp_capabilities"}\n{"execute":"query-tpm-types"}\n') | ./i386-softmmu/qemu-system-i386 -S -nodefaults -nographic -M none -qmp stdio
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https://bugs.launchpad.net/qemu/+bug/1219207
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Cc: qemu-stable@nongnu.org
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Signed-off-by: Cole Robinson <crobinso@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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Tested-by: Richard W.M. Jones <rjones@redhat.com>
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Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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(cherry picked from commit 02dc4bf5684d3fb46786fab2ecff98214b1df9fe)
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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---
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 scripts/qapi-types.py | 5 ++++-
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 1 file changed, 4 insertions(+), 1 deletion(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 scripts/qapi-types.py |    5 ++++-
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 1 files changed, 4 insertions(+), 1 deletions(-)
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diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py
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index e9bd638..8680160 100644
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--- a/scripts/qapi-types.py
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+++ b/scripts/qapi-types.py
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@@ -45,7 +45,10 @@ def generate_fwd_enum_struct(name, members):
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     return mcgen('''
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 typedef struct %(name)sList
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 {
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-    %(name)s value;
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+    union {
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+        %(name)s value;
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+        uint64_t padding;
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+    };
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     struct %(name)sList *next;
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 } %(name)sList;
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 ''',
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-- 
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1.7.1
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