From: Christian Borntraeger
By default qemu will use MAP_PRIVATE for guest pages. This will write
protect pages and thus break on s390 systems that dont support this feature.
Therefore qemu has a hack to always use MAP_SHARED for s390. But MAP_SHARED
has other problems (no dirty pages tracking, a
On 15.05.2012, at 14:49, Christian Borntraeger wrote:
> From: Christian Borntraeger
>
> kvm on specific s390 systems must not use MAP_PRIVATE since
> host read-only page faults are delivered to the guest. Newer
> systems allow the distinction via KVM_CAP_S390_COW
>
> Signed-off-by: Christian B
From: Christian Borntraeger
kvm on specific s390 systems must not use MAP_PRIVATE since
host read-only page faults are delivered to the guest. Newer
systems allow the distinction via KVM_CAP_S390_COW
Signed-off-by: Christian Borntraeger
CC: Avi Kivity
---
exec.c| 54
