From: Christian Borntraeger <[EMAIL PROTECTED]>
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 <[EMAIL PROTECTED]>
Signed-off-by: Carsten Otte <[EMAIL PROTECTED]>
---
arch/s390/kvm/kvm-s390.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
Index: kvm/arch/s390/kvm/kvm-s390.c
===================================================================
--- kvm.orig/arch/s390/kvm/kvm-s390.c
+++ kvm/arch/s390/kvm/kvm-s390.c
@@ -247,11 +247,16 @@ static void kvm_s390_vcpu_initial_reset(
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,
--
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