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From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Subject: [PATCH kernel 0/3] Enable IOMMU support for pseries Secure VMs
Date: Fri, 13 Dec 2019 19:45:34 +1100
Message-Id: <20191213084537.27306-1-aik@ozlabs.ru>
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Cc: Alexey Kardashevskiy <aik@ozlabs.ru>, Ram Pai <linuxram@us.ibm.com>,
 kvm-ppc@vger.kernel.org, Paul Mackerras <paulus@samba.org>,
 Thiago Jung Bauermann <bauerman@linux.ibm.com>,
 David Gibson <david@gibson.dropbear.id.au>
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 <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

This enables IOMMU for SVM. Instead of sharing
a H_PUT_TCE_INDIRECT page, this uses H_PUT_TCE for mapping
and H_STUFF_TCE for clearing TCEs which should bring
acceptable performance at the boot time; otherwise things
work with the same speed anyway.

Please comment. Thanks.



Alexey Kardashevskiy (2):
  powerpc/pseries: Allow not having
    ibm,hypertas-functions::hcall-multi-tce for DDW
  powerpc/pseries/iommu: Do not use H_PUT_TCE_INDIRECT in secure VM

Ram Pai (1):
  powerpc/pseries/iommu: Use dma_iommu_ops for Secure VM.

 arch/powerpc/platforms/pseries/iommu.c | 59 +++++++++++++++-----------
 1 file changed, 34 insertions(+), 25 deletions(-)

-- 
2.17.1