From 2c5119d637d46a4af759213a4eba042ae278464d Mon Sep 17 00:00:00 2001
From: Tamas K Lengyel <tamas.lengyel@intel.com>
Date: Tue, 5 Jan 2021 13:58:23 -0800
Subject: [PATCH] x86/mem_sharing: Copy CPUID and MSR configuration during vm
 forking

Signed-off-by: Tamas K Lengyel <tamas.lengyel@intel.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
---
 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;
     }
 
-- 
2.30.2