diff options
| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2008-06-27 17:05:38 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-07-20 13:42:37 +0400 |
| commit | 4da29e909ea8087de09e27476f91f51a070cabe8 (patch) | |
| tree | e87b67317cc517ea47a897456fd483c8194c9301 /arch/s390/kvm | |
| parent | dfdded7c41e5b68c79a9f8a942d41f56bc265ba4 (diff) | |
| download | linux-4da29e909ea8087de09e27476f91f51a070cabe8.tar.xz | |
KVM: s390: Set guest storage limit and offset to sane values
Some machines do not accept 16EB as guest storage limit. Lets change the
default for the guest storage limit to a sane value. We also should set
the guest_origin to what userspace thinks it is. This allows guests
starting at an address != 0.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch/s390/kvm')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index b802ce6f675f..cdab57c5bc70 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -247,11 +247,16 @@ static void kvm_s390_vcpu_initial_reset(struct kvm_vcpu *vcpu) vcpu->arch.sie_block->gbea = 1; } +/* The current code can have up to 256 pages for virtio */ +#define VIRTIODESCSPACE (256ul * 4096ul) + int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) { atomic_set(&vcpu->arch.sie_block->cpuflags, CPUSTAT_ZARCH); - vcpu->arch.sie_block->gmslm = 0xffffffffffUL; - vcpu->arch.sie_block->gmsor = 0x000000000000; + vcpu->arch.sie_block->gmslm = vcpu->kvm->arch.guest_memsize + + vcpu->kvm->arch.guest_origin + + VIRTIODESCSPACE - 1ul; + vcpu->arch.sie_block->gmsor = vcpu->kvm->arch.guest_origin; vcpu->arch.sie_block->ecb = 2; vcpu->arch.sie_block->eca = 0xC1002001U; setup_timer(&vcpu->arch.ckc_timer, kvm_s390_idle_wakeup, |