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;
+ str
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 you
.
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-dev@lists.ozlabs.org list; linux-
ker...@vger.kernel.org list
nv/pci-ioda.c
> index bc8e74e..bd3870e 100644
> --- a/arch/powerpc/platforms/powernv/pci-ioda.c
> +++ b/arch/powerpc/platforms/powernv/pci-ioda.c
> @@ -1423,7 +1423,7 @@ static void pnv_pci_ioda_dma_dev_setup(struct pnv_phb
> *phb, struct pci_dev *pdev
>
> pe = &ph
On 04/29/2014 04:49 PM, Wei Yang wrote:
> On Mon, Apr 28, 2014 at 11:35:32PM +1000, Alexey Kardashevskiy wrote:
>> On 04/23/2014 12:26 PM, Wei Yang wrote:
>>> During the EEH hotplug event, iommu_add_device() will be invoked three times
>>> and two of them will trigger wa
On 04/29/2014 07:37 PM, Wei Yang wrote:
> On Tue, Apr 29, 2014 at 05:55:48PM +1000, Alexey Kardashevskiy wrote:
>> On 04/29/2014 04:49 PM, Wei Yang wrote:
>>> On Mon, Apr 28, 2014 at 11:35:32PM +1000, Alexey Kardashevskiy wrote:
>>>> On 04/23/2014 12:26 PM, Wei Ya
broken.
This fixes pci-bridge-set-mem-base.
Signed-off-by: Alexey Kardashevskiy
---
I have doubts this is the right fix as I tried to "fix"
pci-bridge-set-mmio-base (while I am here) and it broke the guest.
The problem I am fixing by this is that QEMU started as below is
unable to
On 05/13/2014 08:48 PM, Alexey Kardashevskiy wrote:
> PCI spec says that lower 20 bits are assumed 0xF. The existing code
> seems to get it right in pci-bridge-set-mem-limit.
>
> However pci-bridge-set-mem-base does not account 0xF and poison
> the limit. Since the limi
On 05/29/2014 07:58 AM, Benjamin Herrenschmidt wrote:
> On Wed, 2014-05-28 at 22:49 +1000, Gavin Shan wrote:
>>
>> I will remove those "address" related macros in next revision because it's
>> user-level bussiness, not related to host kernel any more.
>>
>> If the user is QEMU + guest, we need the
This adds a capability number for 64-bit TCE tables support.
Signed-off-by: Alexey Kardashevskiy
---
include/uapi/linux/kvm.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 944cd21..e6972bf 100644
--- a/include/uapi/linux/kvm.h
This reserves 2 capability numbers.
This implements an extended version of KVM_CREATE_SPAPR_TCE_64 ioctl.
Please advise how to proceed with these patches as I suspect that
first two should go via Paolo's tree while the last one via Alex Graf's tree
(correct?).
Thanks!
Alexey Kardas
(DDW), let's add
@bus_offset and @page_shift which are also required by DDW.
Signed-off-by: Alexey Kardashevskiy
---
Documentation/virtual/kvm/api.txt | 46 +
arch/powerpc/include/asm/kvm_host.h | 4 +++-
arch/powerpc/include/asm/kvm_ppc.h | 2 +-
KVM_CREATE_SPAPR_TCE KVM ioctl because in that case TCE requests
will not be passed to the user space which is desired action in
the situation like that.
Signed-off-by: Alexey Kardashevskiy
---
include/uapi/linux/kvm.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/uapi/linux/kvm.h b
On 06/05/2014 05:38 PM, Benjamin Herrenschmidt wrote:
> On Thu, 2014-06-05 at 17:25 +1000, Alexey Kardashevskiy wrote:
>> +This creates a virtual TCE (translation control entry) table, which
>> +is an IOMMU for PAPR-style virtual I/O. It is used to translate
>> +logical addr
On 06/05/2014 10:30 PM, Benjamin Herrenschmidt wrote:
> On Thu, 2014-06-05 at 13:56 +0200, Alexander Graf wrote:
>> What if we ask user space to give us a pointer to user space allocated
>> memory along with the TCE registration? We would still ask user space to
>> only use the returned fd for TC
On 06/05/2014 09:57 PM, Alexander Graf wrote:
>
> On 05.06.14 09:25, Alexey Kardashevskiy wrote:
>> This reserves 2 capability numbers.
>>
>> This implements an extended version of KVM_CREATE_SPAPR_TCE_64 ioctl.
>>
>> Please advise how to proceed with these pa
defines an empty iommu_owner struct. This adds it to pnv_ioda_pe
struct and replaces container_of(tbl) with container_of(tbl->it_owner).
This adds an @owner parameter to pnv_pci_setup_iommu_table().
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/iommu.h| 6 ++
a
Here is what I got for powernv in order to support variable page size
in iommu_table.
I am very uncertain about Patch #4 "Add @it_owner to iommu_table struct"
and wonder if there any better way to get PE from iommu_table.
Please comment. Thanks.
Alexey Kardashevskiy (6):
powerpc/po
Since a TCE page size can be other than 4K, make it configurable for
P5IOC2 and IODA PHBs.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/platforms/powernv/pci-ioda.c | 5 +++--
arch/powerpc/platforms/powernv/pci-p5ioc2.c | 3 ++-
arch/powerpc/platforms/powernv/pci.c| 6
This fixes IODA1/2 to use it_page_shift as it may be bigger than 4K.
This changes involved constant values to use "ull" modifier.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/platforms/powernv/pci-ioda.c | 16 +---
1 file changed, 9 insertions(+), 7 deletions(-)
This makes use of iommu_table::it_page_shift instead of TCE_SHIFT and
TCE_RPN_SHIFT hardcoded values.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/platforms/powernv/pci.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/pci.c
b
This implements pnv_pci_ioda(1|2)_tce_invalidate as a callback
of iommu_table to simplify code structure.
This registers invalidate() callbacks for IODA1 and IODA2.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/iommu.h| 4
arch/powerpc/platforms/powernv/pci
There are going to be other callbacks which are going to be used as
function parameters so change the existing set_bypass() callback to be
a type.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/iommu.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch
On 06/06/2014 06:44 PM, Alexey Kardashevskiy wrote:
> Here is what I got for powernv in order to support variable page size
> in iommu_table.
>
> I am very uncertain about Patch #4 "Add @it_owner to iommu_table struct"
> and wonder if there any better way to get PE from
lpers take
native endian values and do swapping at the moment of writing to a PCI
register using one of "store byte-reversed" instructions.
Suggested-by: Benjamin Herrenschmidt
Signed-off-by: Alexey Kardashevskiy
---
drivers/vfio/pci/vfio_pci_rdwr.c | 20
1 file ch
On 06/19/2014 04:35 AM, Alex Williamson wrote:
> On Wed, 2014-06-18 at 21:36 +1000, Alexey Kardashevskiy wrote:
>> VFIO exposes BARs to user space as a byte stream so userspace can
>> read it using pread()/pwrite(). Since this is a byte stream, VFIO should
>> not do byte swapp
On 06/19/2014 10:50 AM, Alexey Kardashevskiy wrote:
> On 06/19/2014 04:35 AM, Alex Williamson wrote:
>> On Wed, 2014-06-18 at 21:36 +1000, Alexey Kardashevskiy wrote:
>>> VFIO exposes BARs to user space as a byte stream so userspace can
>>> read it using pread()/pwr
On 06/19/2014 10:50 AM, Alexey Kardashevskiy wrote:
> On 06/19/2014 04:35 AM, Alex Williamson wrote:
>> On Wed, 2014-06-18 at 21:36 +1000, Alexey Kardashevskiy wrote:
>>> VFIO exposes BARs to user space as a byte stream so userspace can
>>> read it using pread()/pwr
On 06/19/2014 11:50 AM, Alexey Kardashevskiy wrote:
> On 06/19/2014 10:50 AM, Alexey Kardashevskiy wrote:
>> On 06/19/2014 04:35 AM, Alex Williamson wrote:
>>> On Wed, 2014-06-18 at 21:36 +1000, Alexey Kardashevskiy wrote:
>>>> VFIO exposes BARs to user space as
On 06/19/2014 03:30 PM, bharat.bhus...@freescale.com wrote:
>
>
>> -Original Message-
>> From: Linuxppc-dev [mailto:linuxppc-dev-
>> bounces+bharat.bhushan=freescale@lists.ozlabs.org] On Behalf Of Alexey
>> Kardashevskiy
>> Sent: Thursday, June 19,
On 06/20/2014 01:21 PM, Alex Williamson wrote:
> On Thu, 2014-06-19 at 13:48 +1000, Alexey Kardashevskiy wrote:
>> On 06/19/2014 11:50 AM, Alexey Kardashevskiy wrote:
>>> On 06/19/2014 10:50 AM, Alexey Kardashevskiy wrote:
>>>> On 06/19/2014 04:35 AM, Alex Williamso
On 06/10/2014 11:56 AM, Wei Yang wrote:
> Current iommu_table of a PE is a static field. This will have a problem when
> iommu_free_table is called.
What kind of problem? This table is per PE and PE is not going anywhere.
>
> This patch allocate iommu_table dynamically.
>
> Signed-off-by: Wei
write32.
Ping?
We need to make a decision whether to move those xxx_native() helpers
somewhere (where?) or leave the patch as is (as we figured out that
iowriteXX functions implement barriers and we cannot just use raw
accessors) and fix commit log to explain everything.
Thanks!
>> Thanks,
>
On 06/24/2014 08:41 PM, Alexander Graf wrote:
>
> On 24.06.14 12:11, Alexey Kardashevskiy wrote:
>> On 06/21/2014 09:12 AM, Benjamin Herrenschmidt wrote:
>>> On Thu, 2014-06-19 at 21:21 -0600, Alex Williamson wrote:
>>>
>>>> Working on big endian being
On 06/24/2014 10:52 PM, Alexander Graf wrote:
>
> On 24.06.14 14:50, Alexey Kardashevskiy wrote:
>> On 06/24/2014 08:41 PM, Alexander Graf wrote:
>>> On 24.06.14 12:11, Alexey Kardashevskiy wrote:
>>>> On 06/21/2014 09:12 AM, Benjamin Herrenschmidt wrote:
>&g
On 06/25/2014 12:21 AM, Alex Williamson wrote:
> On Tue, 2014-06-24 at 15:22 +0200, Alexander Graf wrote:
>> On 24.06.14 15:01, Alexey Kardashevskiy wrote:
>>> On 06/24/2014 10:52 PM, Alexander Graf wrote:
>>>> On 24.06.14 14:50, Alexey Kardashevskiy wrote:
>>&
On 06/25/2014 12:43 AM, Alex Williamson wrote:
> On Wed, 2014-06-25 at 00:33 +1000, Alexey Kardashevskiy wrote:
>> On 06/25/2014 12:21 AM, Alex Williamson wrote:
>>> On Tue, 2014-06-24 at 15:22 +0200, Alexander Graf wrote:
>>>> On 24.06.14 15:01, Alexey Kardashevskiy
On 06/25/2014 07:54 AM, Benjamin Herrenschmidt wrote:
> On Wed, 2014-06-25 at 00:33 +1000, Alexey Kardashevskiy wrote:
>>
>> I do not understand why @val is considered LE here and need to be
>> converted
>> to CPU. Really. I truly believe it should be cpu_to_le32().
On 06/25/2014 11:12 AM, Wei Yang wrote:
> On Tue, Jun 24, 2014 at 08:06:32PM +1000, Alexey Kardashevskiy wrote:
>> On 06/10/2014 11:56 AM, Wei Yang wrote:
>>> Current iommu_table of a PE is a static field. This will have a problem when
>>> iommu_free_table is called.
On 06/25/2014 03:27 PM, Wei Yang wrote:
> On Wed, Jun 25, 2014 at 02:12:34PM +1000, Alexey Kardashevskiy wrote:
>> On 06/25/2014 11:12 AM, Wei Yang wrote:
>>> On Tue, Jun 24, 2014 at 08:06:32PM +1000, Alexey Kardashevskiy wrote:
>>>> On 06/10/2014 11:56 AM,
On 06/25/2014 07:20 PM, David Laight wrote:
> From: Wei Yang
>> On Wed, Jun 25, 2014 at 02:12:34PM +1000, Alexey Kardashevskiy wrote:
>>> On 06/25/2014 11:12 AM, Wei Yang wrote:
>>>> On Tue, Jun 24, 2014 at 08:06:32PM +1000, Alexey Kardashevskiy wrote:
>>>&g
On 06/26/2014 07:12 AM, Alexander Graf wrote:
>
> On 06.06.14 02:20, Alexey Kardashevskiy wrote:
>> On 06/05/2014 09:57 PM, Alexander Graf wrote:
>>> On 05.06.14 09:25, Alexey Kardashevskiy wrote:
>>>> This reserves 2 capability numbers.
>>>>
On 07/08/2014 08:28 PM, Junichi Nomura wrote:
> On 07/02/14 04:39, Mike Snitzer wrote:
>> On Mon, Jun 30 2014 at 6:30am -0400,
>> Paul Mackerras wrote:
>>
>>> I have a machine on which 3.15 usually fails to boot, and 3.14 boots
>>> every time. The machine is a POWER8 2-socket server with 20 core
There is a couple of commented debug prints which still use
IOMMU_PAGE_SHIFT() which is not defined for POWERPC anymore, replace
them with it_page_shift.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/kernel/iommu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/kvm/book3s_64_vio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index 54cf9bc..516f2ee 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc
This prepares existing upstream kernel for DDW (Dynamic DMA windows) and
adds actual DDW support for VFIO.
This patchset does not contain any in-kernel acceleration stuff.
This patchset does not enable DDW for emulated devices.
Alexey Kardashevskiy (16):
powerpc/iommu: Fix comments with
;
- pnv_pci_ioda2_tce_invalidate_32.
There will be another pnv_pci_ioda2_tce_invalidate_64() callback for
huge DMA windows.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/iommu.h | 4
arch/powerpc/platforms/powernv/pci-ioda.c | 19 +--
arch/powerpc/platforms
();
- spapr_tce_iommu_group points to either (depending on .get_table()):
- iommu_table;
- pnv_ioda_pe;
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/iommu.h| 6 ++
arch/powerpc/include/asm/tce.h | 13
arch/powerpc/kernel/iommu.c | 31
Since a TCE page size can be other than 4K, make it configurable for
P5IOC2 and IODA PHBs.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/platforms/powernv/pci-ioda.c | 5 +++--
arch/powerpc/platforms/powernv/pci-p5ioc2.c | 3 ++-
arch/powerpc/platforms/powernv/pci.c| 6
This fixes IODA1/2 to use it_page_shift as it may be bigger than 4K.
This changes the involved constant values to use "ull" modifier.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/platforms/powernv/pci-ioda.c | 16 +---
1 file changed, 9 insertions(+), 7 deletion
ver.
This renames set_bypass() to take_ownership() as it is not necessarily
just enabling bypassing, it can be something else/more so let's give it
a generic name. The bool parameter is inverted.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/iommu.h | 1 -
arch/powe
This makes use of iommu_table::it_page_shift instead of TCE_SHIFT and
TCE_RPN_SHIFT hardcoded values.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/platforms/powernv/pci.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/pci.c
b
-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/machdep.h | 2 ++
arch/powerpc/kernel/iommu.c| 8 +---
arch/powerpc/platforms/powernv/pci.c | 13 -
arch/powerpc/platforms/pseries/iommu.c | 7 +--
arch/powerpc/sysdev/dart_iommu.c | 1 +
5 files
This returns old TCE values to the caller if requested.
The caller is expectded to call put_page() for them.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/platforms/powernv/pci.c | 11 ---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/platforms
Guests might put new TCEs without clearing them first and the PAPR spec
allows that.
This adds put_page() for TCEs which we just replaced.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/kernel/iommu.c | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch
This adds missing permission bits to the translated TCE.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/kernel/iommu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index da04561..01ac319 100644
--- a/arch/powerpc/kernel
it_map.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/kernel/iommu.c | 37 ++---
1 file changed, 30 insertions(+), 7 deletions(-)
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index d9494b2..da04561 100644
--- a/arch/powerpc/kernel
VFIO_IOMMU_SPAPR_TCE_FLAG_DDW capability via
VFIO_IOMMU_SPAPR_TCE_GET_INFO.
This calls reset() when IOMMU is being disabled (happens when VFIO stops
using it).
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/platforms/powernv/pci-ioda.c | 1 +
drivers/vfio/vfio_iommu_spapr_tce.c
et the DMA windows configuration
to the default state; now it only removes the additional window if it
was created.
The next patch will add corresponding ioctls to VFIO SPAPR TCE driver to
pass RTAS call from the userspace to the IODA code.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/i
The iommu_tce_direction() function is not used from outside iommu.c
so make it static.
The iommu_clear_tce() is not used anymore at all so remove it.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/iommu.h | 4
arch/powerpc/kernel/iommu.c | 22
ned-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/iommu.h | 5 +++--
arch/powerpc/kernel/iommu.c | 15 +--
arch/powerpc/platforms/powernv/pci-ioda.c | 3 ++-
drivers/vfio/vfio_iommu_spapr_tce.c | 6 --
4 files changed, 18 insertions(+), 11
accelerates emulated PCI and VIO devices. DDW is not affected.
This was made on top of
[PATCH v1 00/16] powernv: vfio: Add Dynamic DMA windows (DDW)
Alexey Kardashevskiy (7):
powerpc/iommu: Change prototypes for realmode support
powerpc/iommu: Support real mode
powerpc/iommu: Clean up IOMMU API
.
This does not clear TCE for a huge page in real mode and passes handling
of this to virtual mode.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/kernel/iommu.c | 107 +---
1 file changed, 81 insertions(+), 26 deletions(-)
diff --git a/arch/powerpc
SPAPR_TCE_SHIFT is used in few places only and since IOMMU_PAGE_SHIFT_4K
can bre easily used instead, remove SPAPR_TCE_SHIFT.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/kvm_book3s_64.h | 2 --
arch/powerpc/kvm/book3s_64_vio.c | 3 ++-
arch/powerpc/kvm
Upcoming multi-tce support (H_PUT_TCE_INDIRECT/H_STUFF_TCE hypercalls)
will validate TCE (not to have unexpected bits) and IO address (to be within
the DMA window boundaries).
This introduces helpers to validate TCE and IO address.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include
This adds a common helper to search for a kvmppc_spapr_tce_table by
LIOBN.
This makes H_PUT_TCE and H_GET_TCE handler use this new helper.
The helper will be also used in H_PUT_TCE_INDIRECT and H_STUFF_TCE handlers.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/kvm/book3s_64_vio_hv.c
powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc/kvm/book3s_64_vio.c
@@ -14,6 +14,7 @@
*
* Copyright 2010 Paul Mackerras, IBM Corp.
* Copyright 2011 David Gibson, IBM Corporation
+ * Copyright 2013 Alexey Kardashevskiy, IBM Corporation
*/
#include
@@ -37,8 +38,34 @@
#include
#inc
This makes use of the it_page_size from the iommu_table struct
as page size can differ.
This replaces missing IOMMU_PAGE_SHIFT macro in commented debug code
as recently introduced IOMMU_PAGE_XXX macros do not include
IOMMU_PAGE_SHIFT.
Signed-off-by: Alexey Kardashevskiy
---
drivers/vfio
MultiTCE support
Alexey Kardashevskiy (13):
KVM: PPC: Account TCE pages in locked_vm
KVM: PPC: Rework kvmppc_spapr_tce_table to support variable page size
KVM: PPC: Enable IOMMU_API for KVM_BOOK3S_64 permanently
KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number
KVM: PPC: Reserve
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/kvm/book3s_64_vio.c | 35 ++-
1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index 2137836..4ca33f1 100644
--- a/arch/powerpc
At the moment the kvmppc_spapr_tce_table struct can only describe
4GB windows which is not enough for big DMA windows.
This replaces window_size (in bytes, 4GB max) with page_shift (32bit)
and size (64bit, in pages).
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/kvm_host.h
KVM_CREATE_SPAPR_TCE KVM ioctl because in that case TCE requests
will not be passed to the user space which is desired action in
the situation like that.
Signed-off-by: Alexey Kardashevskiy
---
include/uapi/linux/kvm.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/uapi/linux/kvm.h b
This adds a capability number for 64-bit TCE tables support.
Signed-off-by: Alexey Kardashevskiy
---
include/uapi/linux/kvm.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 3048c86..65c2689 100644
--- a/include/uapi/linux/kvm.h
k3s_64_vio*. 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
---
arch/powerpc/kvm/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powe
(DDW), let's add
@bus_offset and @page_shift which are also required by DDW.
Signed-off-by: Alexey Kardashevskiy
---
Documentation/virtual/kvm/api.txt | 51 +
arch/powerpc/include/asm/kvm_ppc.h | 2 +-
arch/powerpc/include/uapi/asm/kvm.h | 9 +++
This enables guest visible TCE tables to start from non-zero offset
on a bus. This will be used for VFIO support.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/kvm_host.h | 1 +
arch/powerpc/kvm/book3s_64_vio_hv.c | 5 -
2 files changed, 5 insertions(+), 1 deletion
kvmppc_iommu_hugepage_try_add()
helper to add one.
At the moment the fastest card available for tests uses up to 9 huge
pages so walking through this hash table does not cost much.
However this can change and we may want to optimize this.
Signed-off-by: Alexey Kardashevskiy
---
Changes:
v11
16MB page sizes.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/kvm/book3s_64_vio.c| 8
arch/powerpc/kvm/book3s_64_vio_hv.c | 16
2 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm
page address.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/kvm/book3s_64_vio.c | 8 ++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index 8250521..573fd6d 100644
--- a/arch/powerpc/kvm
to release them at unexpected KVM
finish.
Signed-off-by: Alexey Kardashevskiy
---
Changes:
v5:
* added lock in search function
* changed callback function type name
v4:
* fixed few bugs
* changed kvm_vfio_find_group_by_liobn() to return informative errors
v3:
* total rework
* added a release
kvmppc_spapr_tce_table.
This adds kvm_spapr_tce_attach_iommu_group() helper to initialize
the pointers.
This puts the group when guest copy of TCE table is destroyed which
happens when TCE table fd is closed.
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/kvm_host.h | 2 ++
arch
connection 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: Alexey Kardashevskiy
---
Changes:
v12:
* reworked for the latest VFIO KVM device
v11:
* removed VFIO_IOMMU
On 07/15/2014 07:25 PM, Alexey Kardashevskiy wrote:
> Signed-off-by: Alexey Kardashevskiy
Just realized this should go to "powernv: vfio: Add Dynamic DMA windows (DDW)".
And neither patchset accounts DDW in locked_vm, need to decide how...
> ---
> arch/powerpc/kvm/b
required
:)
Alexey Kardashevskiy (12):
spapr_iommu: Disable in-kernel IOMMU tables for >4GB windows
spapr_pci: Make find_phb()/find_dev() public
spapr_iommu: Make spapr_tce_find_by_liobn() public
linux headers update for DDW
spapr_rtas: Add Dynamic DMA windows (DDW) RTAS calls supp
to provide path for calling DDW-related
ioctls via VFIO container fd.
Signed-off-by: Alexey Kardashevskiy
---
"Reset" is not implemented yet and it is questionable if we really want it.
---
hw/ppc/Makefile.objs| 3 +
hw/ppc/spapr_
are addressed to BUID+config_addr
in IEEE1275 format.
Signed-off-by: Alexey Kardashevskiy
---
hw/ppc/spapr_pci.c | 22 +++---
include/hw/pci-host/spapr.h | 4
2 files changed, 15 insertions(+), 11 deletions(-)
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
Signed-off-by: Alexey Kardashevskiy
---
linux-headers/linux/vfio.h | 37 -
1 file changed, 36 insertions(+), 1 deletion(-)
diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h
index 26c218e..f0aa97d 100644
--- a/linux-headers/linux/vfio.h
Signed-off-by: Alexey Kardashevskiy
---
hw/ppc/spapr_iommu.c | 2 +-
include/hw/ppc/spapr.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/ppc/spapr_iommu.c b/hw/ppc/spapr_iommu.c
index 36f5d27..588d442 100644
--- a/hw/ppc/spapr_iommu.c
+++ b/hw/ppc/spapr_iommu.c
This option will enable Dynamic DMA windows (DDW) support for pseries
machine.
Signed-off-by: Alexey Kardashevskiy
---
hw/ppc/spapr.c | 15 +++
vl.c | 4
2 files changed, 19 insertions(+)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index d01978f..fec295b 100644
, there will be no
performance impact.
Signed-off-by: Alexey Kardashevskiy
---
hw/ppc/spapr_iommu.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/hw/ppc/spapr_iommu.c b/hw/ppc/spapr_iommu.c
index f6e32a4..36f5d27 100644
--- a/hw/ppc/spapr_iommu.c
+++ b/hw/ppc
Signed-off-by: Alexey Kardashevskiy
---
hw/ppc/spapr_pci_vfio.c | 73 +
1 file changed, 73 insertions(+)
diff --git a/hw/ppc/spapr_pci_vfio.c b/hw/ppc/spapr_pci_vfio.c
index d3bddf2..b72aff0 100644
--- a/hw/ppc/spapr_pci_vfio.c
+++ b/hw/ppc
Signed-off-by: Alexey Kardashevskiy
---
hw/ppc/spapr_pci.c | 62 +
include/hw/pci-host/spapr.h | 3 +++
2 files changed, 65 insertions(+)
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 230b59c..038a485 100644
--- a/hw/ppc
Signed-off-by: Alexey Kardashevskiy
---
hw/ppc/spapr_iommu.c | 7 ---
target-ppc/kvm.c | 47 ---
target-ppc/kvm_ppc.h | 10 +++---
3 files changed, 47 insertions(+), 17 deletions(-)
diff --git a/hw/ppc/spapr_iommu.c b/hw/ppc/spapr_iommu.c
ented completely
in vfio.c because kvm_vfio_spapr_tce_liobn needs a group fd and
we do not want to share resources likes that outside vfio.c.
Signed-off-by: Alexey Kardashevskiy
---
hw/misc/vfio.c | 41 +
hw/ppc/spapr_iommu.c| 1 +
hw/ppc/spapr_pci_v
Signed-off-by: Alexey Kardashevskiy
---
linux-headers/asm-mips/kvm_para.h | 6 +-
linux-headers/asm-powerpc/kvm.h | 9 +
linux-headers/linux/kvm.h | 12
linux-headers/linux/kvm_para.h| 3 +++
4 files changed, 29 insertions(+), 1 deletion(-)
diff --git a
Signed-off-by: Alexey Kardashevskiy
---
hw/misc/vfio.c | 4
1 file changed, 4 insertions(+)
diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c
index 0b9eba0..e7b4d6e 100644
--- a/hw/misc/vfio.c
+++ b/hw/misc/vfio.c
@@ -4437,6 +4437,10 @@ int vfio_container_ioctl(AddressSpace *as, int32_t
On 07/15/2014 07:24 PM, Alexey Kardashevskiy wrote:
> Guests might put new TCEs without clearing them first and the PAPR spec
> allows that.
>
> This adds put_page() for TCEs which we just replaced.
>
> Signed-off-by: Alexey Kardashevskiy
> ---
> arch/pow
re (was in later series)
* added counting for huge window to locked_vm (ugly but better than nothing)
* fixed bug with missing >>PAGE_SHIFT when calling pfn_to_page
Alexey Kardashevskiy (18):
powerpc/iommu: Fix comments with it_page_shift
KVM: PPC: Use RCU when adding to arch.spapr_tce_t
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/kvm/book3s_64_vio.c | 35 ++-
1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index 516f2ee..48b7ed4 100644
--- a/arch/powerpc
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/kvm/book3s_64_vio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index 54cf9bc..516f2ee 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc
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