[Xen-changelog] [xen master] VMX: don't allow PVH to reach handle_mmio()

[patchbot@xxxxxxx]

commit 4d1308afaafa43ff68d6ecc493e36ee8f3ac9942
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Thu Dec 11 12:24:05 2014 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Dec 11 12:24:05 2014 +0100

    VMX: don't allow PVH to reach handle_mmio()

    PVH guests accessing I/O ports via string ops is not supported yet.

    Reported-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Mukesh Rathor <mukesh.rathor@xxxxxxxxxx>
    Acked-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Acked-by: Kevin Tian <kevin.tian@xxxxxxxxx>
    Release-Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 xen/arch/x86/hvm/vmx/vmx.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
index 0bf92b2..f2554d6 100644
--- a/xen/arch/x86/hvm/vmx/vmx.c
+++ b/xen/arch/x86/hvm/vmx/vmx.c
@@ -3086,7 +3086,8 @@ void vmx_vmexit_handler(struct cpu_user_regs *regs)
         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
--
generated by git-patchbot for /home/xen/git/xen.git#master

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