KVM: x86: Emulation of MOV-sreg to memory uses incorrect size
In x86, you can only MOV-sreg to memory with either 16-bits or 64-bits size. In contrast, KVM may write to 32-bits memory on MOV-sreg. This patch fixes KVM behavior, and sets the destination operand size to two, if the destination is memory. When destination is registers, and the operand size is 32-bits, the high 16-bits in modern CPUs is filled with zero. This is handled correctly. Signed-off-by:Nadav Amit <namit@cs.technion.ac.il> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
parent
82b32774
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