Searched hist:"1526 bf9ccf310f1d35c1275b8b477a249d25aaf2" (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/arch/s390/include/asm/ |
| H A D | sclp.h | diff 1526bf9ccf310f1d35c1275b8b477a249d25aaf2 Tue May 15 07:15:25 CDT 2012 Christian Borntraeger <borntraeger@de.ibm.com> KVM: s390: add capability indicating COW support
Currently qemu/kvm on s390 uses a guest mapping that does not
allow the guest backing page table to be write-protected to
support older systems. On those older systems a host write
protection fault will be delivered to the guest.
Newer systems allow to write-protect the guest backing memory
and let the fault be delivered to the host, thus allowing COW.
Use a capability bit to tell qemu if that is possible.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
|
| /openbmc/linux/drivers/s390/char/ |
| H A D | sclp_cmd.c | diff 1526bf9ccf310f1d35c1275b8b477a249d25aaf2 Tue May 15 07:15:25 CDT 2012 Christian Borntraeger <borntraeger@de.ibm.com> KVM: s390: add capability indicating COW support
Currently qemu/kvm on s390 uses a guest mapping that does not
allow the guest backing page table to be write-protected to
support older systems. On those older systems a host write
protection fault will be delivered to the guest.
Newer systems allow to write-protect the guest backing memory
and let the fault be delivered to the host, thus allowing COW.
Use a capability bit to tell qemu if that is possible.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
|
| /openbmc/linux/arch/s390/kvm/ |
| H A D | kvm-s390.c | diff 1526bf9ccf310f1d35c1275b8b477a249d25aaf2 Tue May 15 07:15:25 CDT 2012 Christian Borntraeger <borntraeger@de.ibm.com> KVM: s390: add capability indicating COW support
Currently qemu/kvm on s390 uses a guest mapping that does not
allow the guest backing page table to be write-protected to
support older systems. On those older systems a host write
protection fault will be delivered to the guest.
Newer systems allow to write-protect the guest backing memory
and let the fault be delivered to the host, thus allowing COW.
Use a capability bit to tell qemu if that is possible.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
|