KVM: x86: Emulate push sreg as done in Core

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According to Intel SDM push of segment selectors is done in the following
manner: "if the operand size is 32-bits, either a zero-extended value is pushed
on the stack or the segment selector is written on the stack using a 16-bit
move. For the last case, all recent Core and Atom processors perform a 16-bit
move, leaving the upper portion of the stack location unmodified."

This patch modifies the behavior to match the core behavior.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Nadav Amit 2014-11-02 11:54:51 +02:00 • committed by Paolo Bonzini

parent 5aca372236

commit 0fcc207c66

1 changed files with 4 additions and 0 deletions

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arch/x86/kvm/emulate.c

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