From: Ram Pai <linuxram@us.ibm.com>
To: mpe@ellerman.id.au
Cc: linuxppc-dev@lists.ozlabs.org, benh@kernel.crashing.org,
david@gibson.dropbear.id.au, paulus@ozlabs.org,
mdroth@linux.vnet.ibm.com, hch@lst.de, linuxram@us.ibm.com,
andmike@us.ibm.com, sukadev@linux.vnet.ibm.com, mst@redhat.com,
ram.n.pai@gmail.com, aik@ozlabs.ru, cai@lca.pw,
tglx@linutronix.de, bauerman@linux.ibm.com,
linux-kernel@vger.kernel.org, leonardo@linux.ibm.com
Subject: [PATCH v5 0/2] Enable IOMMU support for pseries Secure VMs
Date: Fri, 6 Dec 2019 17:12:37 -0800 [thread overview]
Message-ID: <1575681159-30356-1-git-send-email-linuxram@us.ibm.com> (raw)
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"
changelog:
v5: unshare the page used in H_PUT_TCE_INDIRECT hcall to
communicate the TCE entries with the hypervisor.
Concern raised by Alexey. This minimizes the number
of pages shared with the hypervisor.
v4: Corrected the Subject, to include the keyword 'PATCH'.
No other changes.
v3: Better description of 2/2 patch.
Suggested by David Gibson.
v2: added comments describing the changes.
Suggested by Alexey and Michael Ellermen.
Ram Pai (2):
powerpc/pseries/iommu: Share the per-cpu TCE page with the hypervisor.
powerpc/pseries/iommu: Use dma_iommu_ops for Secure VM.
arch/powerpc/platforms/pseries/iommu.c | 43 ++++++++++++++++++++++++----------
1 file changed, 30 insertions(+), 13 deletions(-)
--
1.8.3.1
next reply other threads:[~2019-12-07 1:13 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-07 1:12 Ram Pai [this message]
2019-12-07 1:12 ` [PATCH v5 1/2] powerpc/pseries/iommu: Share the per-cpu TCE page with the hypervisor Ram Pai
2019-12-07 1:12 ` [PATCH v5 2/2] powerpc/pseries/iommu: Use dma_iommu_ops for Secure VM Ram Pai
2019-12-10 3:08 ` Alexey Kardashevskiy
2019-12-10 22:09 ` Thiago Jung Bauermann
2019-12-11 1:43 ` Michael Roth
2019-12-11 8:36 ` Alexey Kardashevskiy
2019-12-11 18:07 ` Michael Roth
2019-12-11 18:20 ` Christoph Hellwig
2019-12-12 6:45 ` Ram Pai
2019-12-13 0:19 ` Michael Roth
2019-12-10 3:07 ` [PATCH v5 1/2] powerpc/pseries/iommu: Share the per-cpu TCE page with the hypervisor Alexey Kardashevskiy
2019-12-10 5:12 ` Ram Pai
2019-12-10 5:32 ` Alexey Kardashevskiy
2019-12-10 15:35 ` Ram Pai
2019-12-11 8:15 ` Alexey Kardashevskiy
2019-12-11 20:31 ` Michael Roth
2019-12-11 22:47 ` Alexey Kardashevskiy
2019-12-12 2:39 ` Alexey Kardashevskiy
2019-12-13 0:22 ` Michael Roth
2019-12-12 4:11 ` Ram Pai
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