Searched hist:"2 c70fe4416d5f6d092b20ebf7d7654835e09c109" (Results 1 – 4 of 4) sorted by relevance
| /openbmc/linux/arch/s390/kvm/ |
| H A D | intercept.c | diff 2c70fe4416d5f6d092b20ebf7d7654835e09c109 Fri May 17 07:41:36 CDT 2013 Christian Borntraeger <borntraeger@de.ibm.com> s390/kvm: Kick guests out of sie if prefix page host pte is touched
The guest prefix pages must be mapped writeable all the time
while SIE is running, otherwise the guest might see random
behaviour. (pinned at the pte level) Turns out that mlocking is
not enough, the page table entry (not the page) might change or
become r/o. This patch uses the gmap notifiers to kick guest
cpus out of SIE.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
|
| H A D | kvm-s390.h | diff 2c70fe4416d5f6d092b20ebf7d7654835e09c109 Fri May 17 07:41:36 CDT 2013 Christian Borntraeger <borntraeger@de.ibm.com> s390/kvm: Kick guests out of sie if prefix page host pte is touched
The guest prefix pages must be mapped writeable all the time
while SIE is running, otherwise the guest might see random
behaviour. (pinned at the pte level) Turns out that mlocking is
not enough, the page table entry (not the page) might change or
become r/o. This patch uses the gmap notifiers to kick guest
cpus out of SIE.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
|
| H A D | kvm-s390.c | diff 2c70fe4416d5f6d092b20ebf7d7654835e09c109 Fri May 17 07:41:36 CDT 2013 Christian Borntraeger <borntraeger@de.ibm.com> s390/kvm: Kick guests out of sie if prefix page host pte is touched
The guest prefix pages must be mapped writeable all the time
while SIE is running, otherwise the guest might see random
behaviour. (pinned at the pte level) Turns out that mlocking is
not enough, the page table entry (not the page) might change or
become r/o. This patch uses the gmap notifiers to kick guest
cpus out of SIE.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
|
| /openbmc/linux/arch/s390/include/asm/ |
| H A D | pgtable.h | diff 2c70fe4416d5f6d092b20ebf7d7654835e09c109 Fri May 17 07:41:36 CDT 2013 Christian Borntraeger <borntraeger@de.ibm.com> s390/kvm: Kick guests out of sie if prefix page host pte is touched
The guest prefix pages must be mapped writeable all the time
while SIE is running, otherwise the guest might see random
behaviour. (pinned at the pte level) Turns out that mlocking is
not enough, the page table entry (not the page) might change or
become r/o. This patch uses the gmap notifiers to kick guest
cpus out of SIE.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
|