From: Ram Pai <linuxram@us.ibm.com>
To: Alexey Kardashevskiy <aik@ozlabs.ru>
Cc: andmike@us.ibm.com, mst@redhat.com, mdroth@linux.vnet.ibm.com,
linux-kernel@vger.kernel.org, ram.n.pai@gmail.com, cai@lca.pw,
tglx@linutronix.de, sukadev@linux.vnet.ibm.com,
linuxppc-dev@lists.ozlabs.org, hch@lst.de,
bauerman@linux.ibm.com, david@gibson.dropbear.id.au
Subject: RE: [RFC v1 0/2] Enable IOMMU support for pseries Secure VMs
Date: Wed, 6 Nov 2019 08:46:30 -0800 [thread overview]
Message-ID: <20191106164630.GB5201@oc0525413822.ibm.com> (raw)
In-Reply-To: <265679db-9cb3-1660-0cf6-97f740b1b48b@ozlabs.ru>
On Wed, Nov 06, 2019 at 12:59:50PM +1100, Alexey Kardashevskiy wrote:
>
>
> On 05/11/2019 08:28, Ram Pai wrote:
> > This patch series enables IOMMU support for pseries Secure VMs.
> >
> >
> > Tested using QEMU command line option:
> >
> > "-device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x4,
> > iommu_platform=on,disable-modern=off,disable-legacy=on"
> > and
> >
> > "-device virtio-blk-pci,scsi=off,bus=pci.0,
> > addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,
> > iommu_platform=on,disable-modern=off,disable-legacy=on"
>
>
> Worth mentioning that SLOF won't boot with such devices as SLOF does not know about iommu_platform=on.
I did see SLOF complaining, but that did not stop it from booting the guest.
My boot device was a virtio device, with iommu platform flag
enabled.
So I am not sure, under what conditions SLOF will fail to boot. Any
idea?
RP
next prev parent reply other threads:[~2019-11-06 16:49 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-04 21:28 [RFC v1 0/2] Enable IOMMU support for pseries Secure VMs Ram Pai
2019-11-04 21:28 ` [RFC v1 1/2] powerpc/pseries/iommu: Share the per-cpu TCE page with the hypervisor Ram Pai
2019-11-04 21:28 ` [RFC v1 2/2] powerpc/pseries/iommu: Use dma_iommu_ops for Secure VMs aswell Ram Pai
2019-11-07 10:26 ` Michael Ellerman
2019-11-08 5:49 ` Ram Pai
2019-11-06 1:58 ` [RFC v1 1/2] powerpc/pseries/iommu: Share the per-cpu TCE page with the hypervisor Alexey Kardashevskiy
2019-11-06 17:01 ` Ram Pai
2019-11-07 5:58 ` Alexey Kardashevskiy
2019-11-07 10:29 ` Michael Ellerman
2019-11-08 6:05 ` Ram Pai
2019-11-06 1:59 ` [RFC v1 0/2] Enable IOMMU support for pseries Secure VMs Alexey Kardashevskiy
2019-11-06 16:46 ` Ram Pai [this message]
2019-11-06 18:06 ` Michael S. Tsirkin
2019-11-06 18:52 ` Michael Roth
2019-11-06 22:22 ` Ram Pai
2019-11-07 6:01 ` Alexey Kardashevskiy
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