lkml.org 
[lkml]   [2016]   [Apr]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 4.5 010/238] KVM: VMX: avoid guest hang on invalid invvpid instruction
    Date
    4.5-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Paolo Bonzini <pbonzini@redhat.com>

    commit f6870ee9e53430f2a318ccf0dd5e66bb46194e43 upstream.

    A guest executing an invalid invvpid instruction would hang
    because the instruction pointer was not updated.

    Reported-by: jmontleo@redhat.com
    Tested-by: jmontleo@redhat.com
    Fixes: 99b83ac893b84ed1a62ad6d1f2b6cc32026b9e85
    Reviewed-by: David Matlack <dmatlack@google.com>
    Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    arch/x86/kvm/vmx.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/arch/x86/kvm/vmx.c
    +++ b/arch/x86/kvm/vmx.c
    @@ -7457,6 +7457,7 @@ static int handle_invvpid(struct kvm_vcp
    if (!(types & (1UL << type))) {
    nested_vmx_failValid(vcpu,
    VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);
    + skip_emulated_instruction(vcpu);
    return 1;
    }


    \
     
     \ /
      Last update: 2016-04-10 23:21    [W:4.214 / U:0.044 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site