lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

KVM: s390: streamline memslot handling

Browse Source 
This patch relocates the variables kvm-s390 uses to track guest mem addr/size.
As discussed dropping the variables at struct kvm_arch level allows to use the
common vcpu->request based mechanism to reload guest memory if e.g. changes
via set_memory_region.

The kick mechanism introduced in this series is used to ensure running vcpus
leave guest state to catch the update.

Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Christian Ehrhardt
2009-05-25 13:40:51 +02:00
committed by Avi Kivity
parent b1d16c495d
commit 628eb9b8a8
6 changed files with 62 additions and 54 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
arch/s390/kvm/intercept.c
View File

@@ -1,7 +1,7 @@
/*
* intercept.c - in-kernel handling for sie intercepts
*
* Copyright IBM Corp. 2008
* Copyright IBM Corp. 2008,2009
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (version 2 only)
@@ -164,9 +164,9 @@ static int handle_validity(struct kvm_vcpu *vcpu)
vcpu->stat.exit_validity++;
if ((viwhy == 0x37) && (vcpu->arch.sie_block->prefix
<= vcpu->kvm->arch.guest_memsize - 2*PAGE_SIZE)){
<= kvm_s390_vcpu_get_memsize(vcpu) - 2*PAGE_SIZE)) {
rc = fault_in_pages_writeable((char __user *)
vcpu->kvm->arch.guest_origin +
vcpu->arch.sie_block->gmsor +
vcpu->arch.sie_block->prefix,
2*PAGE_SIZE);
if (rc)