x86/mem_sharing: copy cpuid and msrs during vm forking

[PATCH v2] x86/mem_sharing: copy cpuid and msrs during vm forking

Tamas K Lengyel posted 1 patch 3 years, 3 months ago

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git fetch https://gitlab.com/xen-project/patchew/xen tags/patchew/5ceda1696c935730c2b2925e2454a7502c6560f0.1609883742.git.tamas.lengyel@intel.com

xen/arch/x86/mm/mem_sharing.c | 2 ++
1 file changed, 2 insertions(+)

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[PATCH v2] x86/mem_sharing: copy cpuid and msrs during vm forking

Posted by Tamas K Lengyel 3 years, 3 months ago

Signed-off-by: Tamas K Lengyel <tamas.lengyel@intel.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;
     }
 
-- 
2.25.1