[Xen-changelog] [xen master] x86/pt: add HVM check to XEN_DOMCTL_unbind_pt_irq

[patchbot@xxxxxxx]

commit a3562d8c369fed726e7d2ba105f1185878873adb
Author:     Wei Liu <wei.liu2@xxxxxxxxxx>
AuthorDate: Fri Aug 17 16:12:32 2018 +0100
Commit:     Wei Liu <wei.liu2@xxxxxxxxxx>
CommitDate: Tue Aug 21 14:59:04 2018 +0100

    x86/pt: add HVM check to XEN_DOMCTL_unbind_pt_irq
    
    Its counterpart is HVM only. Add the check to help dead code
    elimination to figure out the call to pt_irq_destroy_bind is not
    needed when HVM is not enabled.
    
    Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/domctl.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xen/arch/x86/domctl.c b/xen/arch/x86/domctl.c
index 1002659de0..ab854899a5 100644
--- a/xen/arch/x86/domctl.c
+++ b/xen/arch/x86/domctl.c
@@ -715,6 +715,10 @@ long arch_do_domctl(
         struct xen_domctl_bind_pt_irq *bind = &domctl->u.bind_pt_irq;
         int irq = domain_pirq_to_irq(d, bind->machine_irq);
 
+        ret = -EINVAL;
+        if ( !is_hvm_domain(d) )
+            break;
+
         ret = -EPERM;
         if ( irq <= 0 || !irq_access_permitted(currd, irq) )
             break;
--
generated by git-patchbot for /home/xen/git/xen.git#master

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