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| author |   Janosch Frank <frankja@linux.ibm.com> | 2019-04-02 09:21:06 +0200 |
|---|---|---|
| committer |   Christian Borntraeger <borntraeger@de.ibm.com> | 2020-02-27 19:47:11 +0100 |
| commit | 19e1227768863a1469797c13ef8fea1af7beac2c (patch) | |
| tree | a3982c53f1e0c20916d32369ca3602b18c768719 /arch/s390/kvm/intercept.c | |
| parent | KVM: s390: protvirt: Add new gprs location handling (diff) | |
| download | linux-dev-19e1227768863a1469797c13ef8fea1af7beac2c.tar.xz linux-dev-19e1227768863a1469797c13ef8fea1af7beac2c.zip | |
KVM: S390: protvirt: Introduce instruction data area bounce buffer
Now that we can't access guest memory anymore, we have a dedicated
satellite block that's a bounce buffer for instruction data.
We re-use the memop interface to copy the instruction data to / from
userspace. This lets us re-use a lot of QEMU code which used that
interface to make logical guest memory accesses which are not possible
anymore in protected mode anyway.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
[borntraeger@de.ibm.com: patch merging, splitting, fixing]
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/intercept.c')
0 files changed, 0 insertions, 0 deletions