Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
On Mon, Mar 06, 2023 at 11:29:53AM -0600, Timothy Pearson wrote: > This patch series reenables VFIO support on POWER systems. It > is based on Alexey Kardashevskiys's patch series, rebased and > successfully tested under QEMU with a Marvell PCIe SATA controller > on a POWER9 Blackbird host. > > Alexey Kardashevskiy (3): > powerpc/iommu: Add "borrowing" iommu_table_group_ops > powerpc/pci_64: Init pcibios subsys a bit later > powerpc/iommu: Add iommu_ops to report capabilities and allow blocking > domains > > Timothy Pearson (1): > Add myself to MAINTAINERS for Power VFIO support > > MAINTAINERS | 5 + > arch/powerpc/include/asm/iommu.h | 6 +- > arch/powerpc/include/asm/pci-bridge.h | 7 + > arch/powerpc/kernel/iommu.c | 246 +- > arch/powerpc/kernel/pci_64.c | 2 +- > arch/powerpc/platforms/powernv/pci-ioda.c | 36 +++- > arch/powerpc/platforms/pseries/iommu.c| 27 +++ > arch/powerpc/platforms/pseries/pseries.h | 4 + > arch/powerpc/platforms/pseries/setup.c| 3 + > drivers/vfio/vfio_iommu_spapr_tce.c | 96 ++--- > 10 files changed, 338 insertions(+), 94 deletions(-) > > -- > 2.30.2 The Alexey Kardashevskiy (3) patchs series tested on powerNV denali power9 system with NetXtreme BCM5719 Gigabit Ethernet PCIe card.The vfio passthrough is working fine Tested-by : Narayana Murty
Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
Timothy Pearson writes: > - Original Message - >> From: "Michael Ellerman" >> To: "Timothy Pearson" , "Timothy Pearson" >> >> Cc: "kvm" , "linuxppc-dev" >> >> Sent: Tuesday, March 21, 2023 5:33:57 AM >> Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems > >> Timothy Pearson writes: >>> - Original Message - >>>> From: "Timothy Pearson" >>>> To: "Michael Ellerman" >>>> Cc: "Timothy Pearson" , "kvm" >>>> , "linuxppc-dev" >>>> >>>> Sent: Thursday, March 9, 2023 1:28:20 PM >>>> Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems >>> >>>> - Original Message - >>>>> From: "Michael Ellerman" >>>>> To: "Timothy Pearson" , "kvm" >>>>> >>>>> Cc: "linuxppc-dev" >>>>> Sent: Thursday, March 9, 2023 5:40:01 AM >>>>> Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems >>>> >>>>> Timothy Pearson writes: >>>>>> This patch series reenables VFIO support on POWER systems. It >>>>>> is based on Alexey Kardashevskiys's patch series, rebased and >>>>>> successfully tested under QEMU with a Marvell PCIe SATA controller >>>>>> on a POWER9 Blackbird host. >>>>>> >>>>>> Alexey Kardashevskiy (3): >>>>>> powerpc/iommu: Add "borrowing" iommu_table_group_ops >>>>>> powerpc/pci_64: Init pcibios subsys a bit later >>>>>> powerpc/iommu: Add iommu_ops to report capabilities and allow blocking >>>>>> domains >>>>> >>>>> As sent the patches had lost Alexey's authorship (no From: line), I >>>>> fixed it up when applying so the first 3 are authored by Alexey. >>>>> >>>>> cheers >>>> >>>> Thanks for catching that, it wasn't intentional. Probably used a wrong Git >>>> command... >>> >>> Just wanted to touch base on the patches, since they're still listed as >>> Under >>> Review on patchwork. Are we good to go for the 6.4 merge window? >> >> They've been in my next (and so linux-next), since last week. I just >> haven't updated patchwork yet. >> >> So yeah they are on track to go into mainline during the v6.4 merge window. >> >> cheers > > Sounds great, thanks! Saw them in the next tree but wasn't sure if the > patchwork status was more reflective of overall status. Yeah I guess patchwork is more reflective. I sometimes put things in next for a few days to see if any issues shake out, before I update patchwork. Mainly because it's a pain to un-update patchwork if the patch needs to be backed out, but also as a signal that the patch isn't quite locked into next yet. cheers
Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
- Original Message - > From: "Michael Ellerman" > To: "Timothy Pearson" , "Timothy Pearson" > > Cc: "kvm" , "linuxppc-dev" > > Sent: Tuesday, March 21, 2023 5:33:57 AM > Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems > Timothy Pearson writes: >> - Original Message - >>> From: "Timothy Pearson" >>> To: "Michael Ellerman" >>> Cc: "Timothy Pearson" , "kvm" >>> , "linuxppc-dev" >>> >>> Sent: Thursday, March 9, 2023 1:28:20 PM >>> Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems >> >>> - Original Message - >>>> From: "Michael Ellerman" >>>> To: "Timothy Pearson" , "kvm" >>>> >>>> Cc: "linuxppc-dev" >>>> Sent: Thursday, March 9, 2023 5:40:01 AM >>>> Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems >>> >>>> Timothy Pearson writes: >>>>> This patch series reenables VFIO support on POWER systems. It >>>>> is based on Alexey Kardashevskiys's patch series, rebased and >>>>> successfully tested under QEMU with a Marvell PCIe SATA controller >>>>> on a POWER9 Blackbird host. >>>>> >>>>> Alexey Kardashevskiy (3): >>>>> powerpc/iommu: Add "borrowing" iommu_table_group_ops >>>>> powerpc/pci_64: Init pcibios subsys a bit later >>>>> powerpc/iommu: Add iommu_ops to report capabilities and allow blocking >>>>> domains >>>> >>>> As sent the patches had lost Alexey's authorship (no From: line), I >>>> fixed it up when applying so the first 3 are authored by Alexey. >>>> >>>> cheers >>> >>> Thanks for catching that, it wasn't intentional. Probably used a wrong Git >>> command... >> >> Just wanted to touch base on the patches, since they're still listed as Under >> Review on patchwork. Are we good to go for the 6.4 merge window? > > They've been in my next (and so linux-next), since last week. I just > haven't updated patchwork yet. > > So yeah they are on track to go into mainline during the v6.4 merge window. > > cheers Sounds great, thanks! Saw them in the next tree but wasn't sure if the patchwork status was more reflective of overall status.
Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
Timothy Pearson writes: > - Original Message - >> From: "Timothy Pearson" >> To: "Michael Ellerman" >> Cc: "Timothy Pearson" , "kvm" >> , "linuxppc-dev" >> >> Sent: Thursday, March 9, 2023 1:28:20 PM >> Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems > >> - Original Message - >>> From: "Michael Ellerman" >>> To: "Timothy Pearson" , "kvm" >>> >>> Cc: "linuxppc-dev" >>> Sent: Thursday, March 9, 2023 5:40:01 AM >>> Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems >> >>> Timothy Pearson writes: >>>> This patch series reenables VFIO support on POWER systems. It >>>> is based on Alexey Kardashevskiys's patch series, rebased and >>>> successfully tested under QEMU with a Marvell PCIe SATA controller >>>> on a POWER9 Blackbird host. >>>> >>>> Alexey Kardashevskiy (3): >>>> powerpc/iommu: Add "borrowing" iommu_table_group_ops >>>> powerpc/pci_64: Init pcibios subsys a bit later >>>> powerpc/iommu: Add iommu_ops to report capabilities and allow blocking >>>> domains >>> >>> As sent the patches had lost Alexey's authorship (no From: line), I >>> fixed it up when applying so the first 3 are authored by Alexey. >>> >>> cheers >> >> Thanks for catching that, it wasn't intentional. Probably used a wrong Git >> command... > > Just wanted to touch base on the patches, since they're still listed as Under > Review on patchwork. Are we good to go for the 6.4 merge window? They've been in my next (and so linux-next), since last week. I just haven't updated patchwork yet. So yeah they are on track to go into mainline during the v6.4 merge window. cheers
Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
- Original Message - > From: "Timothy Pearson" > To: "Michael Ellerman" > Cc: "Timothy Pearson" , "kvm" > , "linuxppc-dev" > > Sent: Thursday, March 9, 2023 1:28:20 PM > Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems > - Original Message - >> From: "Michael Ellerman" >> To: "Timothy Pearson" , "kvm" >> >> Cc: "linuxppc-dev" >> Sent: Thursday, March 9, 2023 5:40:01 AM >> Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems > >> Timothy Pearson writes: >>> This patch series reenables VFIO support on POWER systems. It >>> is based on Alexey Kardashevskiys's patch series, rebased and >>> successfully tested under QEMU with a Marvell PCIe SATA controller >>> on a POWER9 Blackbird host. >>> >>> Alexey Kardashevskiy (3): >>> powerpc/iommu: Add "borrowing" iommu_table_group_ops >>> powerpc/pci_64: Init pcibios subsys a bit later >>> powerpc/iommu: Add iommu_ops to report capabilities and allow blocking >>> domains >> >> As sent the patches had lost Alexey's authorship (no From: line), I >> fixed it up when applying so the first 3 are authored by Alexey. >> >> cheers > > Thanks for catching that, it wasn't intentional. Probably used a wrong Git > command... Just wanted to touch base on the patches, since they're still listed as Under Review on patchwork. Are we good to go for the 6.4 merge window? Thanks!
Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
- Original Message - > From: "Michael Ellerman" > To: "Timothy Pearson" , "kvm" > > Cc: "linuxppc-dev" > Sent: Thursday, March 9, 2023 5:40:01 AM > Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems > Timothy Pearson writes: >> This patch series reenables VFIO support on POWER systems. It >> is based on Alexey Kardashevskiys's patch series, rebased and >> successfully tested under QEMU with a Marvell PCIe SATA controller >> on a POWER9 Blackbird host. >> >> Alexey Kardashevskiy (3): >> powerpc/iommu: Add "borrowing" iommu_table_group_ops >> powerpc/pci_64: Init pcibios subsys a bit later >> powerpc/iommu: Add iommu_ops to report capabilities and allow blocking >> domains > > As sent the patches had lost Alexey's authorship (no From: line), I > fixed it up when applying so the first 3 are authored by Alexey. > > cheers Thanks for catching that, it wasn't intentional. Probably used a wrong Git command...
Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
Timothy Pearson writes: > This patch series reenables VFIO support on POWER systems. It > is based on Alexey Kardashevskiys's patch series, rebased and > successfully tested under QEMU with a Marvell PCIe SATA controller > on a POWER9 Blackbird host. > > Alexey Kardashevskiy (3): > powerpc/iommu: Add "borrowing" iommu_table_group_ops > powerpc/pci_64: Init pcibios subsys a bit later > powerpc/iommu: Add iommu_ops to report capabilities and allow blocking > domains As sent the patches had lost Alexey's authorship (no From: line), I fixed it up when applying so the first 3 are authored by Alexey. cheers > Timothy Pearson (1): > Add myself to MAINTAINERS for Power VFIO support > > MAINTAINERS | 5 + > arch/powerpc/include/asm/iommu.h | 6 +- > arch/powerpc/include/asm/pci-bridge.h | 7 + > arch/powerpc/kernel/iommu.c | 246 +- > arch/powerpc/kernel/pci_64.c | 2 +- > arch/powerpc/platforms/powernv/pci-ioda.c | 36 +++- > arch/powerpc/platforms/pseries/iommu.c| 27 +++ > arch/powerpc/platforms/pseries/pseries.h | 4 + > arch/powerpc/platforms/pseries/setup.c| 3 + > drivers/vfio/vfio_iommu_spapr_tce.c | 96 ++--- > 10 files changed, 338 insertions(+), 94 deletions(-) > > -- > 2.30.2
Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
Alex Williamson writes: > On Mon, 6 Mar 2023 11:29:53 -0600 (CST) > Timothy Pearson wrote: > >> This patch series reenables VFIO support on POWER systems. It >> is based on Alexey Kardashevskiys's patch series, rebased and >> successfully tested under QEMU with a Marvell PCIe SATA controller >> on a POWER9 Blackbird host. >> >> Alexey Kardashevskiy (3): >> powerpc/iommu: Add "borrowing" iommu_table_group_ops >> powerpc/pci_64: Init pcibios subsys a bit later >> powerpc/iommu: Add iommu_ops to report capabilities and allow blocking >> domains >> >> Timothy Pearson (1): >> Add myself to MAINTAINERS for Power VFIO support >> >> MAINTAINERS | 5 + >> arch/powerpc/include/asm/iommu.h | 6 +- >> arch/powerpc/include/asm/pci-bridge.h | 7 + >> arch/powerpc/kernel/iommu.c | 246 +- >> arch/powerpc/kernel/pci_64.c | 2 +- >> arch/powerpc/platforms/powernv/pci-ioda.c | 36 +++- >> arch/powerpc/platforms/pseries/iommu.c| 27 +++ >> arch/powerpc/platforms/pseries/pseries.h | 4 + >> arch/powerpc/platforms/pseries/setup.c| 3 + >> drivers/vfio/vfio_iommu_spapr_tce.c | 96 ++--- >> 10 files changed, 338 insertions(+), 94 deletions(-) >> > > For vfio and MAINTAINERS portions, > > Acked-by: Alex Williamson Thanks. cheers
Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
- Original Message - > From: "Alex Williamson" > To: "Timothy Pearson" > Cc: "kvm" , "linuxppc-dev" > > Sent: Monday, March 6, 2023 6:59:41 PM > Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems > On Mon, 6 Mar 2023 18:35:22 -0600 (CST) > Timothy Pearson wrote: > >> - Original Message - >> > From: "Alex Williamson" >> > To: "Timothy Pearson" >> > Cc: "kvm" , "linuxppc-dev" >> > >> > Sent: Monday, March 6, 2023 5:46:07 PM >> > Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems >> >> > On Mon, 6 Mar 2023 11:29:53 -0600 (CST) >> > Timothy Pearson wrote: >> > >> >> This patch series reenables VFIO support on POWER systems. It >> >> is based on Alexey Kardashevskiys's patch series, rebased and >> >> successfully tested under QEMU with a Marvell PCIe SATA controller >> >> on a POWER9 Blackbird host. >> >> >> >> Alexey Kardashevskiy (3): >> >> powerpc/iommu: Add "borrowing" iommu_table_group_ops >> >> powerpc/pci_64: Init pcibios subsys a bit later >> >> powerpc/iommu: Add iommu_ops to report capabilities and allow blocking >> >> domains >> >> >> >> Timothy Pearson (1): >> >> Add myself to MAINTAINERS for Power VFIO support >> >> >> >> MAINTAINERS | 5 + >> >> arch/powerpc/include/asm/iommu.h | 6 +- >> >> arch/powerpc/include/asm/pci-bridge.h | 7 + >> >> arch/powerpc/kernel/iommu.c | 246 +- >> >> arch/powerpc/kernel/pci_64.c | 2 +- >> >> arch/powerpc/platforms/powernv/pci-ioda.c | 36 +++- >> >> arch/powerpc/platforms/pseries/iommu.c| 27 +++ >> >> arch/powerpc/platforms/pseries/pseries.h | 4 + >> >> arch/powerpc/platforms/pseries/setup.c| 3 + >> >> drivers/vfio/vfio_iommu_spapr_tce.c | 96 ++--- >> >> 10 files changed, 338 insertions(+), 94 deletions(-) >> >> >> > >> > For vfio and MAINTAINERS portions, >> > >> > Acked-by: Alex Williamson >> > >> > I'll note though that spapr_tce_take_ownership() looks like it copied a >> > bug from the old tce_iommu_take_ownership() where tbl and tbl->it_map >> > are tested before calling iommu_take_ownership() but not in the unwind >> > loop, ie. tables we might have skipped on setup are unconditionally >> > released on unwind. Thanks, >> > >> > Alex >> >> Thanks for that. I'll put together a patch to get rid of that >> potential bug that can be applied after this series is merged, unless >> you'd rather I resubmit a v3 with the issue fixed? > > Follow-up fix is fine by me. Thanks, > > Alex Just sent that patch in. Thanks!
Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
On Mon, 6 Mar 2023 18:35:22 -0600 (CST) Timothy Pearson wrote: > - Original Message - > > From: "Alex Williamson" > > To: "Timothy Pearson" > > Cc: "kvm" , "linuxppc-dev" > > > > Sent: Monday, March 6, 2023 5:46:07 PM > > Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems > > > On Mon, 6 Mar 2023 11:29:53 -0600 (CST) > > Timothy Pearson wrote: > > > >> This patch series reenables VFIO support on POWER systems. It > >> is based on Alexey Kardashevskiys's patch series, rebased and > >> successfully tested under QEMU with a Marvell PCIe SATA controller > >> on a POWER9 Blackbird host. > >> > >> Alexey Kardashevskiy (3): > >> powerpc/iommu: Add "borrowing" iommu_table_group_ops > >> powerpc/pci_64: Init pcibios subsys a bit later > >> powerpc/iommu: Add iommu_ops to report capabilities and allow blocking > >> domains > >> > >> Timothy Pearson (1): > >> Add myself to MAINTAINERS for Power VFIO support > >> > >> MAINTAINERS | 5 + > >> arch/powerpc/include/asm/iommu.h | 6 +- > >> arch/powerpc/include/asm/pci-bridge.h | 7 + > >> arch/powerpc/kernel/iommu.c | 246 +- > >> arch/powerpc/kernel/pci_64.c | 2 +- > >> arch/powerpc/platforms/powernv/pci-ioda.c | 36 +++- > >> arch/powerpc/platforms/pseries/iommu.c| 27 +++ > >> arch/powerpc/platforms/pseries/pseries.h | 4 + > >> arch/powerpc/platforms/pseries/setup.c| 3 + > >> drivers/vfio/vfio_iommu_spapr_tce.c | 96 ++--- > >> 10 files changed, 338 insertions(+), 94 deletions(-) > >> > > > > For vfio and MAINTAINERS portions, > > > > Acked-by: Alex Williamson > > > > I'll note though that spapr_tce_take_ownership() looks like it copied a > > bug from the old tce_iommu_take_ownership() where tbl and tbl->it_map > > are tested before calling iommu_take_ownership() but not in the unwind > > loop, ie. tables we might have skipped on setup are unconditionally > > released on unwind. Thanks, > > > > Alex > > Thanks for that. I'll put together a patch to get rid of that > potential bug that can be applied after this series is merged, unless > you'd rather I resubmit a v3 with the issue fixed? Follow-up fix is fine by me. Thanks, Alex
Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
On 07/03/2023 10:46, Alex Williamson wrote: On Mon, 6 Mar 2023 11:29:53 -0600 (CST) Timothy Pearson wrote: This patch series reenables VFIO support on POWER systems. It is based on Alexey Kardashevskiys's patch series, rebased and successfully tested under QEMU with a Marvell PCIe SATA controller on a POWER9 Blackbird host. Alexey Kardashevskiy (3): powerpc/iommu: Add "borrowing" iommu_table_group_ops powerpc/pci_64: Init pcibios subsys a bit later powerpc/iommu: Add iommu_ops to report capabilities and allow blocking domains Timothy Pearson (1): Add myself to MAINTAINERS for Power VFIO support MAINTAINERS | 5 + arch/powerpc/include/asm/iommu.h | 6 +- arch/powerpc/include/asm/pci-bridge.h | 7 + arch/powerpc/kernel/iommu.c | 246 +- arch/powerpc/kernel/pci_64.c | 2 +- arch/powerpc/platforms/powernv/pci-ioda.c | 36 +++- arch/powerpc/platforms/pseries/iommu.c| 27 +++ arch/powerpc/platforms/pseries/pseries.h | 4 + arch/powerpc/platforms/pseries/setup.c| 3 + drivers/vfio/vfio_iommu_spapr_tce.c | 96 ++--- 10 files changed, 338 insertions(+), 94 deletions(-) For vfio and MAINTAINERS portions, Acked-by: Alex Williamson I'll note though that spapr_tce_take_ownership() looks like it copied a bug from the old tce_iommu_take_ownership() where tbl and tbl->it_map are tested before calling iommu_take_ownership() but not in the unwind loop, ie. tables we might have skipped on setup are unconditionally released on unwind. Thanks, Ah, true, a bug. Thanks for pointing out. -- Alexey
Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
- Original Message - > From: "Alex Williamson" > To: "Timothy Pearson" > Cc: "kvm" , "linuxppc-dev" > > Sent: Monday, March 6, 2023 5:46:07 PM > Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems > On Mon, 6 Mar 2023 11:29:53 -0600 (CST) > Timothy Pearson wrote: > >> This patch series reenables VFIO support on POWER systems. It >> is based on Alexey Kardashevskiys's patch series, rebased and >> successfully tested under QEMU with a Marvell PCIe SATA controller >> on a POWER9 Blackbird host. >> >> Alexey Kardashevskiy (3): >> powerpc/iommu: Add "borrowing" iommu_table_group_ops >> powerpc/pci_64: Init pcibios subsys a bit later >> powerpc/iommu: Add iommu_ops to report capabilities and allow blocking >> domains >> >> Timothy Pearson (1): >> Add myself to MAINTAINERS for Power VFIO support >> >> MAINTAINERS | 5 + >> arch/powerpc/include/asm/iommu.h | 6 +- >> arch/powerpc/include/asm/pci-bridge.h | 7 + >> arch/powerpc/kernel/iommu.c | 246 +- >> arch/powerpc/kernel/pci_64.c | 2 +- >> arch/powerpc/platforms/powernv/pci-ioda.c | 36 +++- >> arch/powerpc/platforms/pseries/iommu.c| 27 +++ >> arch/powerpc/platforms/pseries/pseries.h | 4 + >> arch/powerpc/platforms/pseries/setup.c| 3 + >> drivers/vfio/vfio_iommu_spapr_tce.c | 96 ++--- >> 10 files changed, 338 insertions(+), 94 deletions(-) >> > > For vfio and MAINTAINERS portions, > > Acked-by: Alex Williamson > > I'll note though that spapr_tce_take_ownership() looks like it copied a > bug from the old tce_iommu_take_ownership() where tbl and tbl->it_map > are tested before calling iommu_take_ownership() but not in the unwind > loop, ie. tables we might have skipped on setup are unconditionally > released on unwind. Thanks, > > Alex Thanks for that. I'll put together a patch to get rid of that potential bug that can be applied after this series is merged, unless you'd rather I resubmit a v3 with the issue fixed?
Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
On Mon, 6 Mar 2023 11:29:53 -0600 (CST) Timothy Pearson wrote: > This patch series reenables VFIO support on POWER systems. It > is based on Alexey Kardashevskiys's patch series, rebased and > successfully tested under QEMU with a Marvell PCIe SATA controller > on a POWER9 Blackbird host. > > Alexey Kardashevskiy (3): > powerpc/iommu: Add "borrowing" iommu_table_group_ops > powerpc/pci_64: Init pcibios subsys a bit later > powerpc/iommu: Add iommu_ops to report capabilities and allow blocking > domains > > Timothy Pearson (1): > Add myself to MAINTAINERS for Power VFIO support > > MAINTAINERS | 5 + > arch/powerpc/include/asm/iommu.h | 6 +- > arch/powerpc/include/asm/pci-bridge.h | 7 + > arch/powerpc/kernel/iommu.c | 246 +- > arch/powerpc/kernel/pci_64.c | 2 +- > arch/powerpc/platforms/powernv/pci-ioda.c | 36 +++- > arch/powerpc/platforms/pseries/iommu.c| 27 +++ > arch/powerpc/platforms/pseries/pseries.h | 4 + > arch/powerpc/platforms/pseries/setup.c| 3 + > drivers/vfio/vfio_iommu_spapr_tce.c | 96 ++--- > 10 files changed, 338 insertions(+), 94 deletions(-) > For vfio and MAINTAINERS portions, Acked-by: Alex Williamson I'll note though that spapr_tce_take_ownership() looks like it copied a bug from the old tce_iommu_take_ownership() where tbl and tbl->it_map are tested before calling iommu_take_ownership() but not in the unwind loop, ie. tables we might have skipped on setup are unconditionally released on unwind. Thanks, Alex
[PATCH v2 0/4] Reenable VFIO support on POWER systems
This patch series reenables VFIO support on POWER systems. It is based on Alexey Kardashevskiys's patch series, rebased and successfully tested under QEMU with a Marvell PCIe SATA controller on a POWER9 Blackbird host. Alexey Kardashevskiy (3): powerpc/iommu: Add "borrowing" iommu_table_group_ops powerpc/pci_64: Init pcibios subsys a bit later powerpc/iommu: Add iommu_ops to report capabilities and allow blocking domains Timothy Pearson (1): Add myself to MAINTAINERS for Power VFIO support MAINTAINERS | 5 + arch/powerpc/include/asm/iommu.h | 6 +- arch/powerpc/include/asm/pci-bridge.h | 7 + arch/powerpc/kernel/iommu.c | 246 +- arch/powerpc/kernel/pci_64.c | 2 +- arch/powerpc/platforms/powernv/pci-ioda.c | 36 +++- arch/powerpc/platforms/pseries/iommu.c| 27 +++ arch/powerpc/platforms/pseries/pseries.h | 4 + arch/powerpc/platforms/pseries/setup.c| 3 + drivers/vfio/vfio_iommu_spapr_tce.c | 96 ++--- 10 files changed, 338 insertions(+), 94 deletions(-) -- 2.30.2
