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virtio: use KVM_S390_VIRTIO_RING_ALIGN instead of relying on pagesize

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This doesn't really matter, since s390 pagesize is 4k anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
Rusty Russell
2008-12-30 09:26:02 -06:00
parent 2966af73e7
commit db40598863
2 changed files with 10 additions and 3 deletions
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4
arch/s390/include/asm/kvm_virtio.h
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@@ -50,6 +50,10 @@ struct kvm_vqconfig {
#define KVM_S390_VIRTIO_RESET 1
#define KVM_S390_VIRTIO_SET_STATUS 2
/* The alignment to use between consumer and producer parts of vring.
* This is pagesize for historical reasons. */
#define KVM_S390_VIRTIO_RING_ALIGN 4096
#ifdef __KERNEL__
/* early virtio console setup */
#ifdef CONFIG_S390_GUEST