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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2008-11-14 18:18:02 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-11-14 18:18:52 +0100 |
| commit | cc835f7872adef35076e4a3b6632ef79bb4805be (patch) | |
| tree | 6b416046f989877926db0457cfc80e9805fc5c7e /drivers/s390/kvm | |
| parent | 675be97a32a5f12650b86391b7431f1e10811f1e (diff) | |
| download | linux-cc835f7872adef35076e4a3b6632ef79bb4805be.tar.bz2 | |
[S390] kvm_s390: Fix oops in virtio device detection with "mem="
The current virtio model on s390 has the descriptor page above the main
memory. The guest virtio detection will oops if the mem= parameter is
used to reduce/change the memory size.
We have to use real_memory_size instead of max_pfn to detect the virtio
descriptor pages.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'drivers/s390/kvm')
| -rw-r--r-- | drivers/s390/kvm/kvm_virtio.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index ff4a6931bb8e..3d442444c618 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -322,13 +322,13 @@ static int __init kvm_devices_init(void) return rc; } - rc = vmem_add_mapping(PFN_PHYS(max_pfn), PAGE_SIZE); + rc = vmem_add_mapping(real_memory_size, PAGE_SIZE); if (rc) { s390_root_dev_unregister(kvm_root); return rc; } - kvm_devices = (void *) PFN_PHYS(max_pfn); + kvm_devices = (void *) real_memory_size; ctl_set_bit(0, 9); register_external_interrupt(0x2603, kvm_extint_handler); |