KVM: x86: use proper port value when checking io instruction permission

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Commit f6511935f4 moved the permission check for io instructions
to the ->check_perm callback. It failed to copy the port value from RDX
register for string and "in,out ax,dx" instructions.

Fix it by reading RDX register at decode stage when appropriate.

Fixes FC8.32 installation.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

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Marcelo Tosatti 2011-05-30 15:23:14 -03:00 • committed by Avi Kivity

parent 9e3bb6b6f6

commit 221192bdff

1 changed files with 47 additions and 35 deletions

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arch/x86/kvm/emulate.c

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