path: root/Documentation/virtual
diff options
authorDominik Dingel <dingel@linux.vnet.ibm.com>2014-03-25 13:47:11 +0100
committerChristian Borntraeger <borntraeger@de.ibm.com>2014-04-22 13:24:13 +0200
commitb31605c12f4edda7a40ad9f86985739666298c31 (patch)
tree6dbda314904aeef619702812f7b6aab836459dde /Documentation/virtual
parentf2061656209fb9a5d54bbb1999f0a633438504e7 (diff)
KVM: s390: make cmma usage conditionally
When userspace reset the guest without notifying kvm, the CMMA state of the pages might be unused, resulting in guest data corruption. To avoid this, CMMA must be enabled only if userspace understands the implications. CMMA must be enabled before vCPU creation. It can't be switched off once enabled. All subsequently created vCPUs will be enabled for CMMA according to the CMMA state of the VM. Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> [remove now unnecessary calls to page_table_reset_pgste]
Diffstat (limited to 'Documentation/virtual')
0 files changed, 0 insertions, 0 deletions

Privacy Policy