From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Alexey Kardashevskiy <aik@ozlabs.ru>, linuxppc-dev@lists.ozlabs.org
Cc: kvm@vger.kernel.org, Alexey Kardashevskiy <aik@ozlabs.ru>,
kvm-ppc@vger.kernel.org,
Alex Williamson <alex.williamson@redhat.com>,
Paul Mackerras <paulus@samba.org>,
David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [kernel, v11, 01/10] powerpc/mmu: Add real mode support for IOMMU preregistered memory
Date: Mon, 1 May 2017 12:58:51 +1000 (AEST) [thread overview]
Message-ID: <3wGTdl2zlQz9sN9@ozlabs.org> (raw)
In-Reply-To: <20170322042156.11756-2-aik@ozlabs.ru>
On Wed, 2017-03-22 at 04:21:47 UTC, Alexey Kardashevskiy wrote:
> This makes mm_iommu_lookup() able to work in realmode by replacing
> list_for_each_entry_rcu() (which can do debug stuff which can fail in
> real mode) with list_for_each_entry_lockless().
>
> This adds realmode version of mm_iommu_ua_to_hpa() which adds
> explicit vmalloc'd-to-linear address conversion.
> Unlike mm_iommu_ua_to_hpa(), mm_iommu_ua_to_hpa_rm() can fail.
>
> This changes mm_iommu_preregistered() to receive @mm as in real mode
> @current does not always have a correct pointer.
>
> This adds realmode version of mm_iommu_lookup() which receives @mm
> (for the same reason as for mm_iommu_preregistered()) and uses
> lockless version of list_for_each_entry_rcu().
>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/6b5c19c55266f6efd10ffac0e9f9f2
cheers
next prev parent reply other threads:[~2017-05-01 2:58 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-22 4:21 [PATCH kernel v11 00/10] powerpc/kvm/vfio: Enable in-kernel acceleration Alexey Kardashevskiy
2017-03-22 4:21 ` [PATCH kernel v11 01/10] powerpc/mmu: Add real mode support for IOMMU preregistered memory Alexey Kardashevskiy
2017-05-01 2:58 ` Michael Ellerman [this message]
2017-03-22 4:21 ` [PATCH kernel v11 02/10] powerpc/powernv/iommu: Add real mode version of iommu_table_ops::exchange() Alexey Kardashevskiy
2017-03-27 8:47 ` Michael Ellerman
2017-05-01 2:58 ` [kernel, v11, " Michael Ellerman
2017-03-22 4:21 ` [PATCH kernel v11 03/10] powerpc/iommu/vfio_spapr_tce: Cleanup iommu_table disposal Alexey Kardashevskiy
2017-05-01 2:58 ` [kernel, v11, " Michael Ellerman
2017-03-22 4:21 ` [PATCH kernel v11 04/10] powerpc/vfio_spapr_tce: Add reference counting to iommu_table Alexey Kardashevskiy
2017-03-24 20:16 ` Alex Williamson
2017-05-01 2:58 ` [kernel, v11, " Michael Ellerman
2017-03-22 4:21 ` [PATCH kernel v11 05/10] KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number Alexey Kardashevskiy
2017-03-22 4:21 ` [PATCH kernel v11 06/10] KVM: PPC: Enable IOMMU_API for KVM_BOOK3S_64 permanently Alexey Kardashevskiy
2017-03-22 4:21 ` [PATCH kernel v11 07/10] KVM: PPC: Pass kvm* to kvmppc_find_table() Alexey Kardashevskiy
2017-03-22 4:21 ` [PATCH kernel v11 08/10] KVM: PPC: Use preregistered memory API to access TCE list Alexey Kardashevskiy
2017-03-22 4:21 ` [PATCH kernel v11 09/10] KVM: PPC: iommu: Unify TCE checking Alexey Kardashevskiy
2017-03-27 3:36 ` Michael Ellerman
2017-03-22 4:21 ` [PATCH kernel v11 10/10] KVM: PPC: VFIO: Add in-kernel acceleration for VFIO Alexey Kardashevskiy
2017-03-24 20:16 ` Alex Williamson
2017-03-27 2:35 ` David Gibson
2017-03-27 5:06 ` [PATCH kernel v11 00/10] powerpc/kvm/vfio: Enable in-kernel acceleration Paul Mackerras
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