From: Paul Mackerras <paulus@ozlabs.org>
To: Alexey Kardashevskiy <aik@ozlabs.ru>
Cc: "Alex Williamson" <alex.williamson@redhat.com>,
"Jose Ricardo Ziviani" <joserz@linux.ibm.com>,
"Sam Bobroff" <sbobroff@linux.ibm.com>,
"Alistair Popple" <alistair@popple.id.au>,
"Daniel Henrique Barboza" <danielhb413@gmail.com>,
linuxppc-dev@lists.ozlabs.org, kvm-ppc@vger.kernel.org,
"Piotr Jaroszynski" <pjaroszynski@nvidia.com>,
"Leonardo Augusto Guimarães Garcia" <lagarcia@br.ibm.com>,
"Reza Arbab" <arbab@linux.ibm.com>,
"David Gibson" <david@gibson.dropbear.id.au>
Subject: Re: [PATCH kernel v5 03/20] powerpc/vfio/iommu/kvm: Do not pin device memory
Date: Fri, 14 Dec 2018 03:18:39 +0000 [thread overview]
Message-ID: <20181214031839.GA25474@blackberry> (raw)
In-Reply-To: <20181213061734.16651-4-aik@ozlabs.ru>
On Thu, Dec 13, 2018 at 05:17:17PM +1100, Alexey Kardashevskiy wrote:
> This new memory does not have page structs as it is not plugged to
> the host so gup() will fail anyway.
>
> This adds 2 helpers:
> - mm_iommu_newdev() to preregister the "memory device" memory so
> the rest of API can still be used;
> - mm_iommu_is_devmem() to know if the physical address is one of thise
> new regions which we must avoid unpinning of.
>
> This adds @mm to tce_page_is_contained() and iommu_tce_xchg() to test
> if the memory is device memory to avoid pfn_to_page().
>
> This adds a check for device memory in mm_iommu_ua_mark_dirty_rm() which
> does delayed pages dirtying.
>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Paul Mackerras <paulus@ozlabs.org>
WARNING: multiple messages have this Message-ID (diff)
From: Paul Mackerras <paulus@ozlabs.org>
To: Alexey Kardashevskiy <aik@ozlabs.ru>
Cc: "Alex Williamson" <alex.williamson@redhat.com>,
"Jose Ricardo Ziviani" <joserz@linux.ibm.com>,
"Sam Bobroff" <sbobroff@linux.ibm.com>,
"Alistair Popple" <alistair@popple.id.au>,
"Daniel Henrique Barboza" <danielhb413@gmail.com>,
linuxppc-dev@lists.ozlabs.org, kvm-ppc@vger.kernel.org,
"Piotr Jaroszynski" <pjaroszynski@nvidia.com>,
"Leonardo Augusto Guimarães Garcia" <lagarcia@br.ibm.com>,
"Reza Arbab" <arbab@linux.ibm.com>,
"David Gibson" <david@gibson.dropbear.id.au>
Subject: Re: [PATCH kernel v5 03/20] powerpc/vfio/iommu/kvm: Do not pin device memory
Date: Fri, 14 Dec 2018 14:18:39 +1100 [thread overview]
Message-ID: <20181214031839.GA25474@blackberry> (raw)
In-Reply-To: <20181213061734.16651-4-aik@ozlabs.ru>
On Thu, Dec 13, 2018 at 05:17:17PM +1100, Alexey Kardashevskiy wrote:
> This new memory does not have page structs as it is not plugged to
> the host so gup() will fail anyway.
>
> This adds 2 helpers:
> - mm_iommu_newdev() to preregister the "memory device" memory so
> the rest of API can still be used;
> - mm_iommu_is_devmem() to know if the physical address is one of thise
> new regions which we must avoid unpinning of.
>
> This adds @mm to tce_page_is_contained() and iommu_tce_xchg() to test
> if the memory is device memory to avoid pfn_to_page().
>
> This adds a check for device memory in mm_iommu_ua_mark_dirty_rm() which
> does delayed pages dirtying.
>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Paul Mackerras <paulus@ozlabs.org>
next prev parent reply other threads:[~2018-12-14 3:18 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-13 6:17 [PATCH kernel v5 00/20] powerpc/powernv/npu, vfio: NVIDIA V100 + P9 passthrough Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 01/20] powerpc/ioda/npu: Call skiboot's hot reset hook when disabling NPU2 Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 02/20] powerpc/mm/iommu/vfio_spapr_tce: Change mm_iommu_get to reference a region Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 03/20] powerpc/vfio/iommu/kvm: Do not pin device memory Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-14 3:18 ` Paul Mackerras [this message]
2018-12-14 3:18 ` Paul Mackerras
2018-12-18 23:33 ` Michael Ellerman
2018-12-18 23:33 ` Michael Ellerman
2018-12-13 6:17 ` [PATCH kernel v5 04/20] powerpc/powernv: Move npu struct from pnv_phb to pci_controller Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 05/20] powerpc/powernv/npu: Move OPAL calls away from context manipulation Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 06/20] powerpc/pseries/iommu: Use memory@ nodes in max RAM address calculation Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 07/20] powerpc/pseries/npu: Enable platform support Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 08/20] powerpc/pseries: Remove IOMMU API support for non-LPAR systems Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 09/20] powerpc/powernv/pseries: Rework device adding to IOMMU groups Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 10/20] powerpc/iommu_api: Move IOMMU groups setup to a single place Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-18 23:35 ` Michael Ellerman
2018-12-18 23:35 ` Michael Ellerman
2018-12-19 6:17 ` Alexey Kardashevskiy
2018-12-19 6:17 ` Alexey Kardashevskiy
2018-12-19 9:51 ` Michael Ellerman
2018-12-19 9:51 ` Michael Ellerman
2018-12-13 6:17 ` [PATCH kernel v5 11/20] powerpc/powernv: Reference iommu_table while it is linked to a group Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 12/20] powerpc/powernv/npu: Move single TVE handling to NPU PE Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 13/20] powerpc/powernv/npu: Convert NPU IOMMU helpers to iommu_table_group_ops Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 14/20] powerpc/powernv/npu: Add compound IOMMU groups Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-19 0:17 ` Michael Ellerman
2018-12-19 0:17 ` Michael Ellerman
2018-12-19 6:54 ` Alexey Kardashevskiy
2018-12-19 6:54 ` Alexey Kardashevskiy
2018-12-19 10:00 ` Michael Ellerman
2018-12-19 10:00 ` Michael Ellerman
2018-12-20 2:18 ` Alexey Kardashevskiy
2018-12-20 2:18 ` Alexey Kardashevskiy
2018-12-20 5:33 ` Michael Ellerman
2018-12-20 5:33 ` Michael Ellerman
2018-12-13 6:17 ` [PATCH kernel v5 15/20] powerpc/powernv/npu: Add release_ownership hook Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 16/20] powerpc/powernv/npu: Check mmio_atsd array bounds when populating Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 17/20] powerpc/powernv/npu: Fault user page into the hypervisor's pagetable Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 18/20] vfio_pci: Allow mapping extra regions Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 19/20] vfio_pci: Allow regions to add own capabilities Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-13 6:17 ` [PATCH kernel v5 20/20] vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver Alexey Kardashevskiy
2018-12-13 6:17 ` Alexey Kardashevskiy
2018-12-18 22:37 ` Alex Williamson
2018-12-18 22:37 ` Alex Williamson
2018-12-19 4:36 ` Alexey Kardashevskiy
2018-12-19 4:36 ` Alexey Kardashevskiy
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181214031839.GA25474@blackberry \
--to=paulus@ozlabs.org \
--cc=aik@ozlabs.ru \
--cc=alex.williamson@redhat.com \
--cc=alistair@popple.id.au \
--cc=arbab@linux.ibm.com \
--cc=danielhb413@gmail.com \
--cc=david@gibson.dropbear.id.au \
--cc=joserz@linux.ibm.com \
--cc=kvm-ppc@vger.kernel.org \
--cc=lagarcia@br.ibm.com \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=pjaroszynski@nvidia.com \
--cc=sbobroff@linux.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.