On Mon, 08 Dec 2014 09:12:37 +0000
"Jan Beulich" <jbeul...@suse.com> wrote:
> PVH guests accessing I/O ports via string ops is not supported yet.
>
> Reported-by: Roger Pau Monné<roger....@citrix.com>
> Signed-off-by: Jan Beulich <jbeul...@suse.com>
> ---
> v2: handle_pio() is already safe (pointed out by Mukesh), so only
> refuse entering handle_mmio().
> Note: Only compile tested so far.
>
> --- unstable.orig/xen/arch/x86/hvm/vmx/vmx.c 2014-11-27
> 09:37:27.000000000 +0100 +++
> unstable/xen/arch/x86/hvm/vmx/vmx.c 2014-12-08
> 10:04:27.000000000 +0100 @@ -3086,7 +3086,8 @@ void
> vmx_vmexit_handler(struct cpu_user_ if ( exit_qualification & 0x10 ) {
> /* INS, OUTS */
> - if ( !handle_mmio() )
> + if ( unlikely(is_pvh_vcpu(v)) /* PVH fixme */ ||
> + !handle_mmio() )
> hvm_inject_hw_exception(TRAP_gp_fault, 0);
> }
> else
>
Good idea, and if needed:
Acked-by: Mukesh Rathor <mukesh.rat...@oracle.com>
thanks
Mukesh
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