[xen staging] x86/mem_sharing: Copy CPUID and MSR configuration during vm forking

[patchbot@xxxxxxx]

commit 2c5119d637d46a4af759213a4eba042ae278464d
Author:     Tamas K Lengyel <tamas.lengyel@xxxxxxxxx>
AuthorDate: Tue Jan 5 13:58:23 2021 -0800
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Jan 5 23:00:27 2021 +0000

    x86/mem_sharing: Copy CPUID and MSR configuration during vm forking
    
    Signed-off-by: Tamas K Lengyel <tamas.lengyel@xxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 xen/arch/x86/mm/mem_sharing.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xen/arch/x86/mm/mem_sharing.c b/xen/arch/x86/mm/mem_sharing.c
index c428fd16ce..fc7b2a4102 100644
--- a/xen/arch/x86/mm/mem_sharing.c
+++ b/xen/arch/x86/mm/mem_sharing.c
@@ -1764,6 +1764,8 @@ static int fork(struct domain *cd, struct domain *d)
 
         domain_pause(d);
         cd->max_pages = d->max_pages;
+        *cd->arch.cpuid = *d->arch.cpuid;
+        *cd->arch.msrs = *d->arch.msrs;
         cd->parent = d;
     }
 
--
generated by git-patchbot for /home/xen/git/xen.git#staging