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| author | David Vrabel <david.vrabel@citrix.com> | 2012-01-17 11:35:03 +0000 |
|---|---|---|
| committer | David Vrabel <david.vrabel@citrix.com> | 2012-01-17 11:35:03 +0000 |
| commit | 7a9b8deeca5c8c5ccf7bb4656b01893b0913f4e7 (patch) | |
| tree | 4c3d3c4cdf6a539f51c14b2aa9ac95f03057fcba | |
| parent | c3219b8d23a5e2c174e9c347cde9eb9ec50b0598 (diff) | |
| download | xen-7a9b8deeca5c8c5ccf7bb4656b01893b0913f4e7.tar.gz xen-7a9b8deeca5c8c5ccf7bb4656b01893b0913f4e7.tar.bz2 xen-7a9b8deeca5c8c5ccf7bb4656b01893b0913f4e7.zip | |
x86: emulate lea with two register operands correctly
An lea instruction with two register operands should raise an
undefined instruction exception.
Skype does such a instruction and will crash when starting if it does
not get the exception.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Keir Fraser <keir@xen.org>
Committed-by: Keir Fraser <keir@xen.org>
xen-unstable changeset: 24456:03781de56c31
xen-unstable date: Thu Jan 05 15:47:16 2012 +0000
| -rw-r--r-- | xen/arch/x86/x86_emulate/x86_emulate.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/xen/arch/x86/x86_emulate/x86_emulate.c b/xen/arch/x86/x86_emulate/x86_emulate.c index 1e5c41bdd1..aa491f1de4 100644 --- a/xen/arch/x86/x86_emulate/x86_emulate.c +++ b/xen/arch/x86/x86_emulate/x86_emulate.c @@ -2056,6 +2056,7 @@ x86_emulate( } case 0x8d: /* lea */ + generate_exception_if(ea.type != OP_MEM, EXC_UD, -1); dst.val = ea.mem.off; break; |