[xen stable-4.7] x86: don't enable XPTI on idle domain

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[xen stable-4.7] x86: don't enable XPTI on idle domain

patchbot
commit 196932adb25a6e26680788db4397850bbd30770f
Author:     Jan Beulich <[hidden email]>
AuthorDate: Wed May 30 13:37:23 2018 +0200
Commit:     Jan Beulich <[hidden email]>
CommitDate: Wed May 30 13:37:23 2018 +0200

    x86: don't enable XPTI on idle domain
   
    While the involved code (in pv_domain_initialise()) sits behind an
    !is_idle_domain() check already in 4.10, we need to add one here.
   
    Signed-off-by: Jan Beulich <[hidden email]>
    Reviewed-by: Andrew Cooper <[hidden email]>
---
 xen/arch/x86/domain.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/domain.c b/xen/arch/x86/domain.c
index 3ef7a84892..a3e913b162 100644
--- a/xen/arch/x86/domain.c
+++ b/xen/arch/x86/domain.c
@@ -754,7 +754,7 @@ int arch_domain_create(struct domain *d, unsigned int domcr_flags,
         if ( (rc = hvm_domain_initialise(d)) != 0 )
             goto fail;
     }
-    else
+    else if ( !is_idle_domain(d) )
     {
         /* 64-bit PV guest by default. */
         d->arch.is_32bit_pv = d->arch.has_32bit_shinfo = 0;
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.7

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