KVM: x86: Fix update RCX/RDI/RSI on REP-string

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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>

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Nadav Amit 2015-04-28 13:06:00 +03:00 • committed by Paolo Bonzini

parent 3db176d5b4

commit ee122a7109

1 changed files with 2 additions and 6 deletions

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arch/x86/kvm/emulate.c

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