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S390: reboot: reset device pages on reboot

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This patch fixes reboot on s390 by resetting the device
page on reboot.

Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Jens Freimann 2012-04-22 23:52:21 +00:00 committed by Alexander Graf
parent 118a897743
commit eb3caa44b0
1 changed files with 7 additions and 0 deletions
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7
hw/s390-virtio-bus.c
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@ -57,6 +57,12 @@ static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev);
/* length of VirtIO device pages */ /* length of VirtIO device pages */
const target_phys_addr_t virtio_size = S390_DEVICE_PAGES * TARGET_PAGE_SIZE; const target_phys_addr_t virtio_size = S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
static void s390_virtio_bus_reset(void *opaque)
{
VirtIOS390Bus *bus = opaque;
bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE;
}
VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size) VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size)
{ {
VirtIOS390Bus *bus; VirtIOS390Bus *bus;
@ -82,6 +88,7 @@ VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size)
/* Allocate RAM for VirtIO device pages (descriptors, queues, rings) */ /* Allocate RAM for VirtIO device pages (descriptors, queues, rings) */
*ram_size += S390_DEVICE_PAGES * TARGET_PAGE_SIZE; *ram_size += S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
qemu_register_reset(s390_virtio_bus_reset, bus);
return bus; return bus;
} }