From 1ea1ce8ac305d9e006bc8b0f5f3554793fd2fa43 Mon Sep 17 00:00:00 2001 From: David Gibson Date: Wed, 23 Jan 2013 17:20:43 +0000 Subject: [PATCH] pseries: Adjust default VIO address allocations to play better with libvirt Currently, if VIO devices for pseries don't have addresses explicitly allocated, they get automatically numbered from 0x1000. This is in the same general range that libvirt will typically assign VIO device addresses. That means that if there is a device libvirt doesn't know about, and it gets an address assigned before the libvirt assigned devices are processed, we can end up with an address conflict (qemu will abort with an error). While the real solution is to teach libvirt about the other devices, so it can correctly manage the whole allocation, this patch reduces the interim inconvenience by moving qemu allocations to a range that libvirt is less likely to conflict with. Because the guest gets the device addresses through the device tree, these addresses are truly arbitrary and can be changed without breaking guests. Signed-off-by: David Gibson Signed-off-by: Alexander Graf --- hw/spapr_vio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/spapr_vio.c b/hw/spapr_vio.c index 2054219c95..34c9ca6b65 100644 --- a/hw/spapr_vio.c +++ b/hw/spapr_vio.c @@ -492,7 +492,7 @@ VIOsPAPRBus *spapr_vio_bus_init(void) qbus = qbus_create(TYPE_SPAPR_VIO_BUS, dev, "spapr-vio"); bus = DO_UPCAST(VIOsPAPRBus, bus, qbus); - bus->next_reg = 0x1000; + bus->next_reg = 0x71000000; /* hcall-vio */ spapr_register_hypercall(H_VIO_SIGNAL, h_vio_signal);