From mboxrd@z Thu Jan  1 00:00:00 1970
From: Richie <listmail@triad.rr.com>
Subject: Re: pv-grub boot hangs when iommu=soft. Booting kernel
	directly with the flags works. MiniOS screws around with page flags.
Date: Tue, 06 Jul 2010 17:36:33 -0400
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To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Konrad Rzeszutek Wilk wrote:
> [    0.000000] Kernel command line: ro root=/dev/mapper/vg_vs03-lv_root rd_LVM_LV=vg_vs03/lv_root rd_LVM_LV=vg_vs03/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us debug earlyprintk=xen console=hvc0 iommu=swiotlb swiotlb=force
> [    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
>   
shouldn't that be iommu=soft or is it another valid spec.?