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KVM: x86: Fix update RCX/RDI/RSI on REP-string
authorNadav Amit <namit@cs.technion.ac.il>
Tue, 28 Apr 2015 10:06:00 +0000 (13:06 +0300)
committerPaolo Bonzini <pbonzini@redhat.com>
Tue, 19 May 2015 18:52:35 +0000 (20:52 +0200)
commitee122a7109e42313caadf6038ab773d1f68fcce1
tree5760163eb46dcdc5dc594317336384d0d34d8c9ftree
parent3db176d5b4170284d9ce1e1e9c441ebfa9a37417commit | diff
KVM: x86: Fix update RCX/RDI/RSI on REP-string

When REP-string instruction is preceded with an address-size prefix,
ECX/EDI/ESI are used as the operation counter and pointers.  When they are
updated, the high 32-bits of RCX/RDI/RSI are cleared, similarly to the way they
are updated on every 32-bit register operation.  Fix it.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/emulate.c diff | blob | blame | history
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