.
The patch adds new register index PT_DSCR (index=44) which can be
set/get by:
ptrace(PTRACE_POKEUSER, traced_process, PT_DSCR 3, dscr);
dscr = ptrace(PTRACE_PEEKUSER, traced_process, PT_DSCR 3, NULL);
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/ptrace.h |3
On 20/02/13 15:33, Alex Williamson wrote:
On Wed, 2013-02-20 at 15:20 +1100, Alexey Kardashevskiy wrote:
On 20/02/13 14:47, Alex Williamson wrote:
On Wed, 2013-02-20 at 13:31 +1100, Alexey Kardashevskiy wrote:
On 20/02/13 07:11, Alex Williamson wrote:
On Tue, 2013-02-19 at 18:38 +1100, David
* various locks fixed
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Documentation/vfio.txt | 63 ++
drivers/vfio/Kconfig|6 +
drivers/vfio/Makefile |1 +
drivers/vfio/vfio.c
On 21/03/13 07:45, Alex Williamson wrote:
On Tue, 2013-03-19 at 18:08 +1100, Alexey Kardashevskiy wrote:
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
in order
to support in-kernel handling of DMA map/unmap requests.
The patch adds the iommu_group_find(id) function which performs
such search.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/iommu/iommu.c | 26 ++
include/linux/iommu.h |1 +
2 files
in order
to support in-kernel handling of DMA map/unmap requests.
The patch adds the iommu_group_get_by_id(id) function which performs
such search.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/iommu/iommu.c | 28
include/linux/iommu.h |1 +
2
in order
to support in-kernel handling of DMA map/unmap requests.
The patch adds the iommu_group_get_by_id(id) function which performs
such search.
v2: fixed reference counting.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/iommu/iommu.c | 29
SPAPR_TCE_IOMMU config
option and configure VFIO as required.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/iommu.h |9 ++
arch/powerpc/kernel/iommu.c | 186 ++
arch/powerpc
On 29/11/12 15:20, Alex Williamson wrote:
+ /* Put tces to the table */
+ for (i = 0; (i pages) !ret; ++i, tce += IOMMU_PAGE_SIZE) {
+ ret = put_tce(tbl, entry + i, tce, direction);
+ /*
+* As IOMMU page size is always 4K, the system
On 01/12/12 03:48, Alex Williamson wrote:
On Fri, 2012-11-30 at 17:14 +1100, Alexey Kardashevskiy wrote:
This patch 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 VFIO
SPAPR_TCE_IOMMU config
option and configure VFIO as required.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/iommu.h |9 ++
arch/powerpc/kernel/iommu.c | 186 ++
arch/powerpc
) but have not decided
about its actual design yet.
Alexey Kardashevskiy (2):
vfio powerpc: enabled on powernv platform
vfio powerpc: implemented IOMMU driver for VFIO
arch/powerpc/include/asm/iommu.h |9 +
arch/powerpc/kernel/iommu.c | 186 ++
arch/powerpc
mapping/unmapping pages for the guest IO and
provides information about DMA window (required by a POWERPC
guest).
The counterpart in QEMU is required to support this functionality.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/vfio
On 04/12/12 04:35, Alex Williamson wrote:
On Mon, 2012-12-03 at 13:52 +1100, Alexey Kardashevskiy wrote:
This patch 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 VFIO
,
the empty kvm_iommu_map_pages/kvm_iommu_unmap_pages have to be
defined, so does the patch.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Cc: David Gibson da...@gibson.dropbear.id.au
---
arch/powerpc/kernel/iommu.c | 17 +
1 file changed, 17 insertions(+)
diff --git a/arch
The series introduces a VFIO support on POWER.
The QEMU support is required, the real mode acceleration patches are coming
later.
Alexey Kardashevskiy (2):
vfio powerpc: enabled on powernv platform
vfio powerpc: implemented IOMMU driver for VFIO
arch/powerpc/include/asm/iommu.h
VFIO on POWER, enable SPAPR_TCE_IOMMU config
option and configure VFIO as required.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/iommu.h| 15 ++
arch/powerpc/kernel/iommu.c | 343
mapping/unmapping pages for the guest IO and
provides information about DMA window (required by a POWERPC
guest).
The counterpart in QEMU is required to support this functionality.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/vfio
On 12/02/13 09:16, Alex Williamson wrote:
On Mon, 2013-02-11 at 22:54 +1100, Alexey Kardashevskiy wrote:
This patch 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 VFIO
On 12/02/13 09:17, Alex Williamson wrote:
On Mon, 2013-02-11 at 22:54 +1100, Alexey Kardashevskiy wrote:
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
-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/iommu/iommu.c | 19 ++-
include/linux/iommu.h | 20
2 files changed, 22 insertions(+), 17 deletions(-)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index b0afd3d..58cc298 100644
--- a/drivers/iommu
On 12/02/13 16:07, Alex Williamson wrote:
On Tue, 2013-02-12 at 15:06 +1100, Alexey Kardashevskiy wrote:
Having this patch in a tree, adding new nodes in sysfs
for IOMMU groups is going to be easier.
The first candidate for this change is a dma-window-size
property which tells a size of a DMA
Hi!
On POWERNV we use only the part of IOMMU API which handles devices and
groups. We do not use IOMMU domains as VFIO containers do everything we
need for VFIO and we do not implement iommu_ops as it is not very relevant
to our architecture (does not give dma window properties, etc).
So
.
Regards
Varun
-Original Message-
From: Alexey Kardashevskiy [mailto:a...@ozlabs.ru]
Sent: Friday, March 01, 2013 6:55 AM
To: Kumar Gala
Cc: Sethi Varun-B16395; Benjamin Herrenschmidt; iommu@lists.linux-
foundation.org; linuxppc-...@lists.ozlabs.org list; linux-
ker...@vger.kernel.org list
not
been changed by this patch.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/ptrace.h |3 ++-
arch/powerpc/kernel/ptrace.c | 29 ++---
arch/powerpc/kernel/ptrace32.c| 15 ---
3 files changed, 32 insertions(+), 15
On 13/02/13 04:15, Alex Williamson wrote:
On Wed, 2013-02-13 at 01:42 +1100, Alexey Kardashevskiy wrote:
On 12/02/13 16:07, Alex Williamson wrote:
On Tue, 2013-02-12 at 15:06 +1100, Alexey Kardashevskiy wrote:
Having this patch in a tree, adding new nodes in sysfs
for IOMMU groups is going
On 15/02/13 14:24, Paul Mackerras wrote:
On Mon, Feb 11, 2013 at 11:12:41PM +1100, a...@ozlabs.ru wrote:
+static long emulated_h_put_tce(struct kvmppc_spapr_tce_table *stt,
+ unsigned long ioba, unsigned long tce)
+{
+ unsigned long idx = ioba SPAPR_TCE_SHIFT;
+
On 19/02/13 16:24, Alex Williamson wrote:
On Mon, 2013-02-18 at 17:15 +1100, Alexey Kardashevskiy wrote:
On 13/02/13 04:15, Alex Williamson wrote:
On Wed, 2013-02-13 at 01:42 +1100, Alexey Kardashevskiy wrote:
On 12/02/13 16:07, Alex Williamson wrote:
On Tue, 2013-02-12 at 15:06 +1100
On 20/02/13 07:11, Alex Williamson wrote:
On Tue, 2013-02-19 at 18:38 +1100, David Gibson wrote:
On Mon, Feb 18, 2013 at 10:24:00PM -0700, Alex Williamson wrote:
On Mon, 2013-02-18 at 17:15 +1100, Alexey Kardashevskiy wrote:
On 13/02/13 04:15, Alex Williamson wrote:
On Wed, 2013-02-13 at 01
On 20/02/13 14:47, Alex Williamson wrote:
On Wed, 2013-02-20 at 13:31 +1100, Alexey Kardashevskiy wrote:
On 20/02/13 07:11, Alex Williamson wrote:
On Tue, 2013-02-19 at 18:38 +1100, David Gibson wrote:
On Mon, Feb 18, 2013 at 10:24:00PM -0700, Alex Williamson wrote:
On Mon, 2013-02-18 at 17
Hi!
There is a per core register on modern POWER processors (POWER6+) called
DSCR: The DSCR (aka Data Stream Control Register) is supported on some
server PowerPC chips and allow some control over the prefetch of data
streams.
Its per process support has been added by
mapping/unmapping pages for the guest IO and
provides information about DMA window (required by a POWERPC
guest).
The counterpart in QEMU is required to support this functionality.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/vfio
SPAPR_TCE_IOMMU config
option and configure VFIO as required.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/iommu.h | 10 ++
arch/powerpc/kernel/iommu.c | 214 ++
arch/powerpc
tree
for a guest OS properly. Although this driver has been
tested only on POWERNV, it should work on any platform
supporting TCE tables.
To enable VFIO on POWER, enable SPAPR_TCE_IOMMU config
option.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Ping?
On 15/10/12 17:18, Alexey Kardashevskiy wrote:
The DSCR (aka Data Stream Control Register) is supported on some
server PowerPC chips and allow some control over the prefetch
of data streams.
The kernel already supports DSCR value per thread but there is also
a need in a ability to change
On 22/11/12 22:56, Sethi Varun-B16395 wrote:
-Original Message-
From: linux-kernel-ow...@vger.kernel.org [mailto:linux-kernel-
ow...@vger.kernel.org] On Behalf Of Alex Williamson
Sent: Tuesday, November 20, 2012 11:50 PM
To: Alexey Kardashevskiy
Cc: Benjamin Herrenschmidt; Paul
device tree node. Otherwise, it
would cause kernel crash.
Actually, it was introduced by commit 66523d9f (powerpc/eeh: Trace
error based on PE from beginning).
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
---
arch/powerpc/platforms/pseries
. So we
shouldn't try to get the PE's device tree node. Otherwise, it
would cause kernel crash.
Actually, it was introduced by commit 66523d9f (powerpc/eeh: Trace
error based on PE from beginning).
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Signed-off-by: Gavin Shan sha
The series includes IOMMU implementation and necessary IOMMU groups
initialization.
Alexey Kardashevskiy (2):
vfio powerpc: implemented IOMMU driver for VFIO
vfio powerpc: enabled on powernv platform
arch/powerpc/include/asm/iommu.h |6 +
arch/powerpc/kernel/iommu.c | 141
mapping/unmapping pages for the guest IO and
provides information about DMA window (required by a POWERPC
guest).
The counterpart in QEMU is required to support this functionality.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/vfio
SPAPR_TCE_IOMMU config
option and configure VFIO as required.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/iommu.h |6 ++
arch/powerpc/kernel/iommu.c | 141 ++
arch/powerpc
On 27/11/12 05:04, Alex Williamson wrote:
On Mon, 2012-11-26 at 08:18 -0700, Alex Williamson wrote:
On Fri, 2012-11-23 at 13:02 +1100, Alexey Kardashevskiy wrote:
On 22/11/12 22:56, Sethi Varun-B16395 wrote:
-Original Message-
From: linux-kernel-ow...@vger.kernel.org [mailto:linux
On 27/11/12 05:20, Alex Williamson wrote:
On Fri, 2012-11-23 at 20:03 +1100, Alexey Kardashevskiy wrote:
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
On 27/11/12 15:29, Alex Williamson wrote:
On Tue, 2012-11-27 at 15:06 +1100, Alexey Kardashevskiy wrote:
On 27/11/12 05:20, Alex Williamson wrote:
On Fri, 2012-11-23 at 20:03 +1100, Alexey Kardashevskiy wrote:
VFIO implements platform independent stuff such as
a PCI driver, BAR access (via
SPAPR_TCE_IOMMU config
option and configure VFIO as required.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/iommu.h |9 +++
arch/powerpc/kernel/iommu.c | 147 ++
arch/powerpc
mapping/unmapping pages for the guest IO and
provides information about DMA window (required by a POWERPC
guest).
The counterpart in QEMU is required to support this functionality.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/vfio
On 29/11/12 08:01, Alex Williamson wrote:
On Wed, 2012-11-28 at 18:21 +1100, Alexey Kardashevskiy wrote:
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
SPAPR_TCE_IOMMU config
option and configure VFIO as required.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/iommu.h |9 ++
arch/powerpc/kernel/iommu.c | 159 ++
arch/powerpc
On 16/12/12 22:20, Joerg Roedel wrote:
Alexey,
On Thu, Dec 13, 2012 at 08:48:55AM -0700, Alex Williamson wrote:
Probably a good idea to CC the iommu list and maintainer...
On Thu, 2012-12-13 at 17:28 +1100, Alexey Kardashevskiy wrote:
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
On 08/12/12 04:38, Alex Williamson wrote:
+static int __init tce_iommu_init(void)
+{
+ struct pci_dev *pdev = NULL;
+ struct iommu_table *tbl;
+ struct iommu_group *grp;
+
+ /* Allocate and initialize IOMMU groups */
+ for_each_pci_dev(pdev) {
+ tbl =
On 08/12/12 04:01, Alex Williamson wrote:
+ case VFIO_IOMMU_MAP_DMA: {
+ vfio_iommu_spapr_tce_dma_map param;
+ struct iommu_table *tbl = container-tbl;
+ enum dma_data_direction direction;
+ unsigned long locked, lock_limit;
+
+
SPAPR_TCE_IOMMU config
option and configure VFIO as required.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/iommu.h | 10 ++
arch/powerpc/kernel/iommu.c | 329 ++
arch/powerpc
mapping/unmapping pages for the guest IO and
provides information about DMA window (required by a POWERPC
guest).
The counterpart in QEMU is required to support this functionality.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/vfio
.
On 12/12/12 23:34, Alexey Kardashevskiy wrote:
This patch 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 VFIO driver (PCI pass through).
It also implements an API
On 13/12/12 10:30, Alex Williamson wrote:
On Wed, 2012-12-12 at 23:34 +1100, Alexey Kardashevskiy wrote:
This patch 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 VFIO
.
The patch adds new register index PT_DSCR (index=44) which can be
set/get by:
ptrace(PTRACE_POKEUSER, traced_process, PT_DSCR 3, dscr);
dscr = ptrace(PTRACE_PEEKUSER, traced_process, PT_DSCR 3, NULL);
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/ptrace.h |1
.
The patch adds new register index PT_DSCR (index=44) which can be
set/get by:
ptrace(PTRACE_POKEUSER, traced_process, PT_DSCR 3, dscr);
dscr = ptrace(PTRACE_PEEKUSER, traced_process, PT_DSCR 3, NULL);
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/ptrace.h |1
On 13/12/12 13:29, Benjamin Herrenschmidt wrote:
On Wed, 2012-12-12 at 07:34 -0700, Alex Williamson wrote:
But what would I put there?... IOMMU ID is more than enough at the moment
and struct iommu_table does not have anything what would have made sense to
show in the sysfs...
I believe David
place to call
iommu_group_alloc() is when a new group is just discovered. However
PCI scan is done from subsys_initcall hook as well what makes
using of the IOMMU API impossible.
The patch moves IOMMU subsystem initialization one step earlier.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
.
The patch adds new register index PT_DSCR (index=44) which can be
set/get by:
ptrace(PTRACE_POKEUSER, traced_process, PT_DSCR 3, dscr);
dscr = ptrace(PTRACE_PEEKUSER, traced_process, PT_DSCR 3, NULL);
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/ptrace.h |3
-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/uapi/asm/ptrace.h |1 +
arch/powerpc/kernel/ptrace.c | 29 +
2 files changed, 30 insertions(+)
diff --git a/arch/powerpc/include/uapi/asm/ptrace.h
b/arch/powerpc/include/uapi/asm
before PCI scan begins.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/iommu/iommu.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index ddbdaca..1065a1a 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu
Hi!
Recently I started getting multiple errors like this:
cxgb3 0006:01:00.0: iommu_alloc failed, tbl c3067980 vaddr
c01fbdaaa882 npages 1
cxgb3 0006:01:00.0: iommu_alloc failed, tbl c3067980 vaddr
c01fbdaaa882 npages 1
cxgb3 0006:01:00.0: iommu_alloc failed, tbl
On 08/06/2013 04:41 AM, Jay Fenlason wrote:
On Mon, Aug 05, 2013 at 12:59:04PM +1000, Alexey Kardashevskiy wrote:
Hi!
Recently I started getting multiple errors like this:
cxgb3 0006:01:00.0: iommu_alloc failed, tbl c3067980 vaddr
c01fbdaaa882 npages 1
cxgb3 0006:01:00.0
in realmode_get_page() and realmode_put_page()
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/pgtable-ppc64.h | 2 ++
arch/powerpc/mm/init_64.c| 54 +++-
include/linux/mm.h | 14 +
include/linux/page
On 07/25/2013 08:26 PM, Alexey Kardashevskiy wrote:
The 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, so we want to move that to KVM.
Since H_PUT_TCE can be extremely
On 08/27/2013 05:56 PM, Gleb Natapov wrote:
On Thu, Aug 15, 2013 at 05:49:26PM +1000, Alexey Kardashevskiy wrote:
This is to reserve a capablity number for upcoming support
of VFIO-IOMMU DMA operations in real mode.
The last ioctl in the group which KVM_CREATE_SPAPR_TCE_IOMMU is added
On 08/27/2013 08:58 PM, Gleb Natapov wrote:
On Tue, Aug 27, 2013 at 06:42:18PM +1000, Alexey Kardashevskiy wrote:
On 08/27/2013 05:56 PM, Gleb Natapov wrote:
On Thu, Aug 15, 2013 at 05:49:26PM +1000, Alexey Kardashevskiy wrote:
This is to reserve a capablity number for upcoming support
instruction for TCE invalidation.
This new feature is going to be utilized by real mode support of VFIO.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
v8:
* fixed check_patch.pl warnings
2013/11/07:
* added comment why stdcix cannot be used in virtual mode
2013/08/07:
* tested
: add
hash_for_each_possible_rcu_notrace(),
Ben suggested to push it via his tree so I included it to the series.
* realmode_(get|put)_page is reworked.
More details in the individual patch comments.
Alexey Kardashevskiy (13):
KVM: PPC: POWERNV: move iommu_add_device earlier
hashtable: add
This adds hash_for_each_possible_rcu_notrace() which is basically
a notrace clone of hash_for_each_possible_rcu() which cannot be
used in real mode due to its tracing/debugging capability.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
v8:
* fixed warnings from check_patch.pl
-foundation.org
Reviewed-by: Paul Mackerras pau...@samba.org
Signed-off-by: Paul Mackerras pau...@samba.org
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
2013/07/25 (v7):
* removed realmode_put_page and added put_page_unless_one() instead.
The name has been chosen to conform the already
successfully
in the kernel based fast path. If they can not be handled by the kernel,
they will get passed on to user space. So user space still has to have
an implementation for these despite the in kernel acceleration.
Signed-off-by: Paul Mackerras pau...@samba.org
Signed-off-by: Alexey Kardashevskiy
. iommu_tce_direction is static now as it is not called from anywhere else.
This will be used by upcoming real mode support of VFIO on POWER.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
v8:
* fixed warnings from check_patch.pl
---
arch/powerpc/include/asm/iommu.h | 9 +-
arch
*. With those
ifdef's we could have only user space emulated devices accelerated
(but not VFIO) which do not seem to be very useful.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/kvm/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/kvm/Kconfig b/arch
to be used for initialization.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
v9:
* KVM ioctl is replaced with SPAPR TCE IOMMU KVM device type with
KVM_DEV_SPAPR_TCE_IOMMU_ATTR_LINKAGE attribute
2013/08/15:
* fixed mistype in comments
* fixed commit message which says what uses
() and iommu_del_device() are public now.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
v8:
* added the check for iommu_group!=NULL before removing device from a group
as suggested by Wei Yang weiy...@linux.vnet.ibm.com
v2:
* added a helper - set_iommu_table_base_and_group - which does
This is to reserve a capablity number for upcoming support
of H_PUT_TCE_INDIRECT and H_STUFF_TCE pseries hypercalls
which support mulptiple DMA map/unmap operations per one call.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
2013/07/16:
* changed the number
---
include/uapi
in real life and there is no
any obvious place to put it.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/kvm/book3s_hv.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 9e823ad..5f15ff7 100644
--- a/arch
between KVM and VFIO.
Tests show that this patch increases transmission speed from 220MB/s
to 750..1020MB/s on 10Gb network (Chelsea CXGB3 10Gb ethernet card).
Signed-off-by: Paul Mackerras pau...@samba.org
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
v9
KVM is going to use VFIO's external API. However KVM can operate even VFIO
is not compiled or loaded so KVM is linked to VFIO dynamically.
This adds proxy functions for VFIO external API.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/kvm/book3s_64_vio.c | 49
.
However this can change and we may want to optimize this.
Signed-off-by: Paul Mackerras pau...@samba.org
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
2013/07/12:
* removed multiple #ifdef IOMMU_API as IOMMU_API is always enabled
for KVM_BOOK3S_64
2013/06/27:
* list of huge pages
On 08/19/2013 11:29 AM, Wei Yang wrote:
On Fri, Aug 16, 2013 at 08:15:36PM +1000, Alexey Kardashevskiy wrote:
On 08/16/2013 08:08 PM, Wei Yang wrote:
---
arch/powerpc/kernel/iommu.c |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kernel/iommu.c b/arch
On 08/19/2013 11:55 AM, Wei Yang wrote:
On Mon, Aug 19, 2013 at 11:39:49AM +1000, Alexey Kardashevskiy wrote:
On 08/19/2013 11:29 AM, Wei Yang wrote:
On Fri, Aug 16, 2013 at 08:15:36PM +1000, Alexey Kardashevskiy wrote:
On 08/16/2013 08:08 PM, Wei Yang wrote:
---
arch/powerpc/kernel/iommu.c
...@linux-foundation.org
Cc: Santosh Rastapur sant...@chelsio.com
Cc: Jay Fenlason fenla...@redhat.com
Cc: David S. Miller da...@davemloft.net
Cc: Divy Le ray d...@chelsio.com
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/net/ethernet/chelsio/cxgb3/sge.c | 107
() and iommu_del_device() are public now.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
arch/powerpc/include/asm/iommu.h| 2 ++
arch/powerpc/kernel/iommu.c | 41 +++--
arch/powerpc/platforms/powernv/pci-ioda.c | 12 ++---
arch/powerpc/platforms/powernv
driver.
iommu_add_device() and iommu_del_device() are public now.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
v2:
* added a helper - set_iommu_table_base_and_group - which does
set_iommu_table_base() and iommu_add_device()
---
arch/powerpc/include/asm/iommu.h
On 08/15/2013 05:16 PM, Alexander Graf wrote:
On 01.08.2013, at 06:44, Alexey Kardashevskiy wrote:
This is to reserve a capablity number for upcoming support
of VFIO-IOMMU DMA operations in real mode.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
2013/07/16
On 08/15/2013 05:25 PM, Alexander Graf wrote:
On 15.08.2013, at 09:24, Alexander Graf wrote:
On 15.08.2013, at 09:22, Alexey Kardashevskiy wrote:
On 08/15/2013 05:16 PM, Alexander Graf wrote:
On 01.08.2013, at 06:44, Alexey Kardashevskiy wrote:
This is to reserve a capablity number
the KVM_CREATE_SPAPR_TCE_IOMMU ioclt gets
0xaf.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
2013/08/15 v8:
* fixed comment again
2013/08/15:
* fixed mistype in comments
* fixed commit message which says what uses ioctls 0xad and 0xae
2013/07/16:
* changed the number
2013/07/11:
* changed
On 08/15/2013 05:43 PM, Alexander Graf wrote:
On 15.08.2013, at 09:42, Alexey Kardashevskiy wrote:
On 08/15/2013 05:25 PM, Alexander Graf wrote:
On 15.08.2013, at 09:24, Alexander Graf wrote:
On 15.08.2013, at 09:22, Alexey Kardashevskiy wrote:
On 08/15/2013 05:16 PM, Alexander Graf
On 08/16/2013 08:08 PM, Wei Yang wrote:
---
arch/powerpc/kernel/iommu.c |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index b20ff17..5abf7c3 100644
--- a/arch/powerpc/kernel/iommu.c
+++
On 07/10/2013 03:32 AM, Alexander Graf wrote:
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off) so we added a list of huge pages. It is populated
On 07/10/2013 01:35 AM, Alexander Graf wrote:
On 06/27/2013 07:02 AM, Alexey Kardashevskiy wrote:
Signed-off-by: Alexey Kardashevskiya...@ozlabs.ru
---
include/uapi/linux/kvm.h |2 ++
1 file changed, 2 insertions(+)
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
On 07/10/2013 02:02 AM, Alexander Graf wrote:
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
The existing TCE machine calls (tce_build and tce_free) only support
virtual mode as they call __raw_writeq for TCE invalidation what
fails in real mode.
This introduces tce_build_rm
On 07/10/2013 03:02 AM, Alexander Graf wrote:
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
This adds real mode handlers for the H_PUT_TCE_INDIRECT and
H_STUFF_TCE hypercalls for QEMU emulated devices such as IBMVIO
devices or emulated PCI. These calls allow adding multiple entries
(up
On 07/10/2013 08:27 PM, Alexander Graf wrote:
On 10.07.2013, at 01:35, Alexey Kardashevskiy wrote:
On 07/10/2013 01:35 AM, Alexander Graf wrote:
On 06/27/2013 07:02 AM, Alexey Kardashevskiy wrote:
Signed-off-by: Alexey Kardashevskiya...@ozlabs.ru
---
include/uapi/linux/kvm.h |2
On 07/10/2013 08:05 PM, Alexander Graf wrote:
On 10.07.2013, at 07:00, Alexey Kardashevskiy wrote:
On 07/10/2013 03:02 AM, Alexander Graf wrote:
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
This adds real mode handlers for the H_PUT_TCE_INDIRECT and
H_STUFF_TCE hypercalls for QEMU
On 07/10/2013 03:32 AM, Alexander Graf wrote:
On 07/06/2013 05:07 PM, Alexey Kardashevskiy wrote:
This adds special support for huge pages (16MB). The reference
counting cannot be easily done for such pages in real mode (when
MMU is off) so we added a list of huge pages. It is populated
On 07/11/2013 08:11 PM, Alexander Graf wrote:
On 11.07.2013, at 07:12, Alexey Kardashevskiy wrote:
On 07/10/2013 08:05 PM, Alexander Graf wrote:
On 10.07.2013, at 07:00, Alexey Kardashevskiy wrote:
On 07/10/2013 03:02 AM, Alexander Graf wrote:
On 07/06/2013 05:07 PM, Alexey
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