From: Alexey Kardashevskiy
The IOMMU API implements groups creating/deletion, device binding
and IOMMU map/unmap operations.
The PowerPC implementation uses most of the API except map/unmap
operations, which are implemented on POWER using hypercalls.
However, in order to link a kernel with the
From: Alexey Kardashevskiy
VFIO implements platform independent stuff such as
a PCI driver, BAR access (via read/write on a file descriptor
or direct mapping when possible) and IRQ signaling.
The platform dependent part includes IOMMU initialization
and handling. This implements an IOMMU
From: Alexey Kardashevskiy
The enables VFIO on the pSeries platform, enabling user space
programs to access PCI devices directly.
Signed-off-by: Alexey Kardashevskiy
Cc: David Gibson
Signed-off-by: Paul Mackerras
---
arch/powerpc/platforms/pseries/iommu.c |4
drivers/iommu/Kconfig
From: Alexey Kardashevskiy
This initializes IOMMU groups based on the IOMMU configuration
discovered during the PCI scan on POWERNV (POWER non virtualized)
platform. The IOMMU groups are to be used later by the VFIO driver,
which is used for PCI pass through.
It also implements an API for
From: Alexey Kardashevskiy
The iommu_init() call initializes IOMMU internal structures and data
required for the API to function such as iommu_group_alloc().
It is registered as a subsys_initcall.
One of the IOMMU users is a PCI subsystem on POWER which discovers new
IOMMU tables during the PCI
From: Alexey Kardashevskiy
The series adds support for VFIO on POWERPC in user space (such as QEMU).
The in-kernel real mode IOMMU support is added by another series posted
separately.
As the first and main aim of this series is the POWERNV platform support,
the "Enable on POWERNV platform"
From: Alexey Kardashevskiy a...@ozlabs.ru
The series adds support for VFIO on POWERPC in user space (such as QEMU).
The in-kernel real mode IOMMU support is added by another series posted
separately.
As the first and main aim of this series is the POWERNV platform support,
the Enable on POWERNV
From: Alexey Kardashevskiy a...@ozlabs.ru
The iommu_init() call initializes IOMMU internal structures and data
required for the API to function such as iommu_group_alloc().
It is registered as a subsys_initcall.
One of the IOMMU users is a PCI subsystem on POWER which discovers new
IOMMU tables
From: Alexey Kardashevskiy a...@ozlabs.ru
This initializes IOMMU groups based on the IOMMU configuration
discovered during the PCI scan on POWERNV (POWER non virtualized)
platform. The IOMMU groups are to be used later by the VFIO driver,
which is used for PCI pass through.
It also implements
From: Alexey Kardashevskiy a...@ozlabs.ru
The enables VFIO on the pSeries platform, enabling user space
programs to access PCI devices directly.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Paul Mackerras pau...@samba.org
---
From: Alexey Kardashevskiy a...@ozlabs.ru
VFIO implements platform independent stuff such as
a PCI driver, BAR access (via read/write on a file descriptor
or direct mapping when possible) and IRQ signaling.
The platform dependent part includes IOMMU initialization
and handling. This implements
From: Alexey Kardashevskiy a...@ozlabs.ru
The IOMMU API implements groups creating/deletion, device binding
and IOMMU map/unmap operations.
The PowerPC implementation uses most of the API except map/unmap
operations, which are implemented on POWER using hypercalls.
However, in order to link a
From: Alexey Kardashevskiy
The patch allows the host kernel to handle H_PUT_TCE request
without involving QEMU in it what should save time on switching
from the kernel to QEMU and back.
The patch adds an IOMMU ID parameter into the KVM_CAP_SPAPR_TCE ioctl,
QEMU needs to be fixed to support
From: Alexey Kardashevskiy
he current VFIO-on-POWER implementation supports only user mode
driven mapping, i.e. QEMU is sending requests to map/unmap pages.
However this approach is really slow in really fast hardware so
it is better to be moved to the real mode.
The patch adds an API to
From: Alexey Kardashevskiy
The patch adds real mode handlers for H_PUT_TCE_INDIRECT and
H_STUFF_TCE hypercalls for QEMU emulated devices such as virtio
devices or emulated PCI. These calls allow adding multiple entries
(up to 512) into the TCE table in one call which saves time on
transition
From: Alexey Kardashevskiy
The first 2 patches in this set add a multi-tce support feature
(adding/deleting several TCE records at once) in real and virtual mode.
The last 2 patches enable real mode acceleration for VFIO and
extend the multi-tce feature to be available for VFIO devices.
The
From: Alexey Kardashevskiy
The lookup_linux_pte() function returns a linux PTE which
is required to convert KVM guest physical address into host real
address in real mode.
This convertion will be used by upcoming support of H_PUT_TCE_INDIRECT
as TCE list address comes from the guest directly so
From: Alexey Kardashevskiy a...@ozlabs.ru
The first 2 patches in this set add a multi-tce support feature
(adding/deleting several TCE records at once) in real and virtual mode.
The last 2 patches enable real mode acceleration for VFIO and
extend the multi-tce feature to be available for VFIO
From: Alexey Kardashevskiy a...@ozlabs.ru
The lookup_linux_pte() function returns a linux PTE which
is required to convert KVM guest physical address into host real
address in real mode.
This convertion will be used by upcoming support of H_PUT_TCE_INDIRECT
as TCE list address comes from the
From: Alexey Kardashevskiy a...@ozlabs.ru
The patch adds real mode handlers for H_PUT_TCE_INDIRECT and
H_STUFF_TCE hypercalls for QEMU emulated devices such as virtio
devices or emulated PCI. These calls allow adding multiple entries
(up to 512) into the TCE table in one call which saves time on
From: Alexey Kardashevskiy a...@ozlabs.ru
he current VFIO-on-POWER implementation supports only user mode
driven mapping, i.e. QEMU is sending requests to map/unmap pages.
However this approach is really slow in really fast hardware so
it is better to be moved to the real mode.
The patch adds an
From: Alexey Kardashevskiy a...@ozlabs.ru
The patch allows the host kernel to handle H_PUT_TCE request
without involving QEMU in it what should save time on switching
from the kernel to QEMU and back.
The patch adds an IOMMU ID parameter into the KVM_CAP_SPAPR_TCE ioctl,
QEMU needs to be fixed
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