Re: [Xen-users] passthrough PCI SCSI device

[James Pifer <jep@xxxxxxxxxxxxxxxx>]

On Mon, 2010-04-26 at 12:58 -0400, listmail wrote:
> If I got this right, on the extra line if direct booting or on the pv's 
> grub menu.lst kernel line.
> You may also need iommu=soft ahead of that.


Thanks. Tried that and got:
# xm start vmtest03 -c
Linux version 2.6.16.60-0.54.5-xenpae (geeko@buildhost) (gcc version 4.1.2 
20070115 (SUSE Linux)) #1 SMP Fri Sep 4 01:28:03 UTC 2009
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000040800000 (usable)
304MB HIGHMEM available.
727MB LOWMEM available.
NX (Execute Disable) protection: active
ACPI in unprivileged domain disabled
Allocating PCI resources starting at 50000000 (gap: 40800000:bf800000)
Built 1 zonelists
Kernel command line: iommu=soft swiotlb=force 
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 65536 bytes)
Xen reported: 2399.316 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Kernel panic - not syncing: No suitable physical memory available for SWIOTLB 
buffer!
Use dom0_mem Xen boot parameter to reserve
some DMA memory (e.g., dom0_mem=-128M).

Thanks,
James


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