On 28/07/12 05:22, Blue Swirl wrote:
On Wed, Jul 25, 2012 at 5:03 PM, Alex Williamson
+
+static void vfio_enable_intx_kvm(VFIODevice *vdev)
+{
+#ifdef CONFIG_KVM
These shouldn't be needed. The device will not be useful without KVM,
so the file shouldn't be compiled for non-KVM case at all.
I
; mechanism for now since the previous netlink version produced
> too many gag reflexes. It's easy enough to set a bit in the
> group flags too indicate such support in the future, so I
> think we can move ahead without it.
>
> Appreciate any feedback or suggestions. Thanks,
strerror(errno));
for (i = 0; i < vdev->nr_vectors; i++) {
@@ -355,6 +356,8 @@ static void vfio_enable_msi(VFIODevice *vdev, bool msix)
qemu_free(vdev->msi_vectors);
vdev->nr_vectors = 0;
return;
+} else if (0 < ret) {
+vdev->nr_vecto
led: %s\n",
__FUNCTION__, vdev->host.seg, vdev->host.bus, vdev->host.dev,
vdev->host.func, addr, val, len, strerror(errno));
@@ -675,6 +704,7 @@ static int vfio_setup_msi(VFIODevice *vdev)
vdev->config_offset + pos + PCI_CAP_FLAGS) != s
Hi!
On 29/11/11 14:46, Alex Williamson wrote:
> On Tue, 2011-11-29 at 12:52 +1100, Alexey Kardashevskiy wrote:
>> Hi!
>>
>> I tried (successfully) to run it on POWER and while doing that I found some
>> issues. I'll try to
>> explain them in separate mails
On 29/11/11 16:48, Alex Williamson wrote:
> On Tue, 2011-11-29 at 15:34 +1100, Alexey Kardashevskiy wrote:
>> Hi!
>>
>> On 29/11/11 14:46, Alex Williamson wrote:
>>> On Tue, 2011-11-29 at 12:52 +1100, Alexey Kardashevskiy wrote:
>>>> Hi!
>>>&
scripts/dtc/libfdt.
>>
>> Signed-off-by: Matt Evans
>
> For the bits derived from my code:
>
> Signed-off-by: David Gibson
>
For the bits derived from my code:
Signed-off-by: Alexey Kardashevskiy
--
Alexey
--
To unsubscribe from this list: send the
; and
>> DT nodes generated for each.
>>
>> Signed-off-by: Matt Evans
>
> For the bits derived from my qemu code:
>
> Signed-off-by: David Gibson
>
For the bits derived from my qemu code:
Signed-off-by: Alexey Kardashevskiy
--
Alexey
--
To unsubscribe from
.
The proposed patch does not change capability pointers when
the same type capability is about to add.
Signed-off-by: Alexey Kardashevskiy
---
hw/pci.c | 10 ++
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/hw/pci.c b/hw/pci.c
index aa0c0b8..1f7c924 100644
--- a/hw/pci.c
.
The proposed patch does not change capability pointers when
the same type capability is about to add.
Signed-off-by: Alexey Kardashevskiy
---
hw/pci.c | 10 ++
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/hw/pci.c b/hw/pci.c
index aa0c0b8..1f7c924 100644
--- a/hw/pci.c
11.05.2012 20:52, Alexander Graf написал:
>
> On 11.05.2012, at 08:45, Alexey Kardashevskiy wrote:
>
>> Normally the pci_add_capability is called on devices to add new
>> capability. This is ok for emulated devices which capabilities list
>> is being built by QEMU.
&g
12.05.2012 5:20, Jason Baron написал:
> On Fri, May 11, 2012 at 04:45:21PM +1000, Alexey Kardashevskiy wrote:
>> Normally the pci_add_capability is called on devices to add new
>> capability. This is ok for emulated devices which capabilities list
>> is being built by QEMU.
Added msi_set_address_data and msix_set_address_data in order to support
sPAPR-specific implementation of MSI/MSIX configuration mechanism.
POWER guest does not initialize these fields, it expects a supervisor to
get them initialized.
Required for VFIO on POWER.
Signed-off-by: Alexey
r solution.
Signed-off-by: Alexey Kardashevskiy
---
drivers/vfio/pci/vfio_pci.c |9 +++--
1 files changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index b2f1f3a..6d4a783 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/driver
form would initialize in its own way.
Signed-off-by: Alexey Kardashevskiy
---
hw/pci.c | 18 ++
hw/pci.h |1 +
hw/pci_internals.h |2 ++
3 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/hw/pci.c b/hw/pci.c
index 1f7c924..8c2e193 10064
window starting
from 0x0).
As for me, it is too complicated. We do not need either
- platform specific IOMMU chardev or
- IOMMU API at all
What do I miss?
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/iommu.h |3 +
arch/powerpc/kernel/iommu.c | 302
The idea of the patch is to demonstrate what POWER needs to support VFIO.
It will not compile as many other patches are needed and they are not
posted anywhere yet.
The patch includes:
1) sPAPR PCI bus got an additional flag "is_vfio" which defines IOMMU
behavior
2) Added POWER-specific IOMMU ha
On 14/05/12 12:55, Alex Williamson wrote:
> On Sat, 2012-05-12 at 16:50 +1000, Alexey Kardashevskiy wrote:
>> The original code calculated the real size of the ROM and passed it to
>> QEMU which tried to do pci_register_bar and failed with error message
>> "ERROR: PC
On 12/05/12 00:13, Alexander Graf wrote:
>
> On 11.05.2012, at 14:47, Alexey Kardashevskiy wrote:
>
>> 11.05.2012 20:52, Alexander Graf написал:
>>>
>>> On 11.05.2012, at 08:45, Alexey Kardashevskiy wrote:
>>>
>>>> Normally the pci_add_capa
On 14/05/12 11:58, David Gibson wrote:
> On Sat, May 12, 2012 at 05:29:53PM +1000, Alexey Kardashevskiy wrote:
>> There is a need for a mechanism to obtain an IRQ line number to
>> initialize End-Of-Interrupt handler.
>>
>> There is anothe
On 17/05/12 06:39, Alex Williamson wrote:
> On Mon, 2012-05-14 at 14:21 +1000, Alexey Kardashevskiy wrote:
>> On 14/05/12 11:58, David Gibson wrote:
>>> On Sat, May 12, 2012 at 05:29:53PM +1000, Alexey Kardashevskiy wrote:
>>>> There is a need for a mechanism t
On 17/05/12 13:00, Benjamin Herrenschmidt wrote:
> On Thu, 2012-05-17 at 12:16 +1000, Alexey Kardashevskiy wrote:
>
>>> It actually can change dynamically on x86 due to acpi interrupt links
>>> which allow the guest a generic way to select from a set of possible
>&
size);
+return existing;
+}
+
if (!offset) {
offset = pci_find_space(pdev, size);
if (!offset) {
return -ENOSPC;
On 14/05/12 13:49, Alexey Kardashevskiy wrote:
> On 12/05/12 00:13, Alexander Graf wrote:
>>
>> On 11.05.2012
On 22/05/12 13:21, Alexander Graf wrote:
>
>
> On 22.05.2012, at 04:02, Benjamin Herrenschmidt
> wrote:
>
>> On Fri, 2012-05-18 at 15:12 +1000, Alexey Kardashevskiy wrote:
>>> Alexander,
>>>
>>> Is that any better? :)
>>
>> Alex (Gr
On 22/05/12 15:52, Alexander Graf wrote:
>
>
> On 22.05.2012, at 05:44, Alexey Kardashevskiy wrote:
>
>> On 22/05/12 13:21, Alexander Graf wrote:
>>>
>>>
>>> On 22.05.2012, at 04:02, Benjamin Herrenschmidt
>>> wrote:
>>>
>
On 22/05/12 16:31, Alexander Graf wrote:
>
>
> On 22.05.2012, at 08:11, Alexey Kardashevskiy wrote:
>
>> On 22/05/12 15:52, Alexander Graf wrote:
>>>
>>>
>>> On 22.05.2012, at 05:44, Alexey Kardashevskiy wrote:
>>>
>>>> On 22/
patch is made on top of
git://github.com/awilliam/linux-vfio.git iommu-group-vfio-20120523
(which is iommu-group-vfio-20120521 + some fixes)
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/Kconfig |6 +
arch/powerpc/include/asm/iommu.h |3 +
arch/powerpc/kernel/Makefile
[Found while debugging VFIO on POWER but it is platform independent]
There is a feature in PCI (>=2.3?) to mask/unmask INTx via PCI_COMMAND and
PCI_STATUS registers.
And there is some API to support that (commit
a2e27787f893621c5a6b865acf6b7766f8671328).
I have a network adapter:
0001:00:01.0 E
On 25/05/12 00:41, Alex Williamson wrote:
>>> [Found while debugging VFIO on POWER but it is platform independent]
>>>
>>> There is a feature in PCI (>=2.3?) to mask/unmask INTx via PCI_COMMAND and
>>> PCI_STATUS registers.
>>
>> Yes, 2.3 introduced this. Masking is done via command register, chec
On 24/05/12 22:02, Jan Kiszka wrote:
> On 2012-05-24 04:44, Alexey Kardashevskiy wrote:
>> [Found while debugging VFIO on POWER but it is platform independent]
>>
>> There is a feature in PCI (>=2.3?) to mask/unmask INTx via PCI_COMMAND and
>> PCI_STATUS registers.
On 25/05/12 01:12, Alex Williamson wrote:
> On Thu, 2012-05-24 at 13:10 +1000, Alexey Kardashevskiy wrote:
>> The patch introduces support of VFIO on POWER.
>>
>> The patch consists of:
>>
>> 1. IOMMU driver for VFIO.
>> It does not use IOMMU API at a
On 25/05/12 12:29, Jan Kiszka wrote:
> On 2012-05-24 22:18, Alexey Kardashevskiy wrote:
>> On 24/05/12 22:02, Jan Kiszka wrote:
>>> On 2012-05-24 04:44, Alexey Kardashevskiy wrote:
>>>> [Found while debugging VFIO on POWER but it is platform independent]
>>>
pci_enable_device() is called
on that PCI function.
To eliminate such effect, some quirk should be called. The proposed
pci_fixup_final does its job well for mentioned NEC PCI USB but not
sure if it is 100% correct.
Signed-off-by: Alexey Kardashevskiy
---
drivers/vfio/pci/vfio_pci.c |2 ++
1
25.05.2012 20:43, Jan Kiszka написал:
> On 2012-05-24 23:47, Alexey Kardashevskiy wrote:
>> On 25/05/12 12:29, Jan Kiszka wrote:
>>> On 2012-05-24 22:18, Alexey Kardashevskiy wrote:
>>>> On 24/05/12 22:02, Jan Kiszka wrote:
>>>>> On 2012-05-24 04:44, Al
ter as broken so that pci_intx_mask_supported
>> won't report it as compatible.
>>
>> Reported-by: Alexey Kardashevskiy
>> Signed-off-by: Jan Kiszka
>> ---
>>
>> Alexey, please test if this catches your case correctly.
>
> Alexey? Ping for testing.
Sorry, was
:
0x34: 0xD0
0xC8: 0x01 0xD0
0xD0: 0x05 0xC8
0xE0: 0x10 0x00
As result capabilities at 0xC8 and 0xD0 point to each other.
Signed-off-by: Alexey Kardashevskiy
---
hw/pci.c | 25 -
1 files changed, 20 insertions(+), 5 deletions(-)
diff --git a/hw/pci.c b/hw/pci.c
index
08.06.2012 20:56, Jan Kiszka написал:
> On 2012-06-08 10:47, Alexey Kardashevskiy wrote:
>> Yet another try :)
>>
>> Normally the pci_add_capability is called on devices to add new
>> capability. This is ok for emulated devices which capabilities list
>> is being
08.06.2012 21:30, Jan Kiszka пишет:
> On 2012-06-08 13:16, Alexey Kardashevskiy wrote:
>> 08.06.2012 20:56, Jan Kiszka написал:
>>> On 2012-06-08 10:47, Alexey Kardashevskiy wrote:
>>>> Yet another try :)
>>>>
>>>> Normally the pci_add_capa
Ping?
On 12/05/12 16:48, Alexey Kardashevskiy wrote:
> Added msi_set_address_data and msix_set_address_data in order to support
> sPAPR-specific implementation of MSI/MSIX configuration mechanism.
> POWER guest does not initialize these fields, it expects a supervisor to
> get them
On 13/06/12 13:22, Benjamin Herrenschmidt wrote:
> On Wed, 2012-06-13 at 12:44 +1000, Alexey Kardashevskiy wrote:
>> Ping?
>
> FYI. The way it normally works on pseries is that RTAS, which is the
> part of the firmware that lives inside the partition alongside the OS,
> per
On 07/06/12 09:17, Alex Williamson wrote:
> On Fri, 2012-05-25 at 17:35 +1000, Alexey Kardashevskiy wrote:
>> Some adapters (like NEC PCI USB controller) do not flush their config
>> on a sioftware reset and remember DMA config, etc.
>>
>> If we use such an adapter with
On 27/06/12 22:37, Dan Carpenter wrote:
> On Mon, Jun 25, 2012 at 10:55:52PM -0600, Alex Williamson wrote:
>> Hi,
>>
>> VFIO has been kicking around for well over a year now and has been
>> posted numerous times for review. The pre-requirements are finally
>> available in linux-next (or will be in
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
Signed-off-by: Alexey Kardashevskiy
---
arch/powerpc/include/asm/iommu.h| 15 ++
arch/powerpc/kernel/iommu.c | 343 +++
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
Signed-off-by: Alexey Kardashevskiy
---
drivers/vfio/Kconfig|6 +
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
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
* various locks fixed
Cc: David Gibson
Signed-off-by: Alexey Kardashevskiy
---
Documentation/vfio.txt | 63 ++
drivers/vfio/Kconfig|6 +
drivers/vfio/Makefile |1 +
drivers/vfio/vfio.c |1 +
drivers/vfio/vfio_iommu_spapr_tce.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
reference.
Alexey Kardashevskiy (6):
KVM: PPC: Make lookup_linux_pte public
KVM: PPC: Add support for multiple-TCE hcalls
powerpc: Prepare to support kernel handling of IOMMU map/unmap
iommu: Add a function to find an iommu group by id
KVM: PPC: Add support for IOMMU in-kernel handling
KVM
physical
address. This makes lookup_linux_pte() public so that code can call
it.
Signed-off-by: Alexey Kardashevskiy
Cc: David Gibson
Signed-off-by: Paul Mackerras
---
arch/powerpc/include/asm/kvm_ppc.h |3 +++
arch/powerpc/kvm/book3s_hv_rm_mmu.c |5 +++--
2 files changed, 6 insertions
nvironment as things
like the sparsemem vmemmap mappings aren't accessible.
This adds an API to increment/decrement page counter as
get_user_pages API used for user mode mapping does not work
in the real mode.
CONFIG_SPARSEMEM_VMEMMAP and CONFIG_FLATMEM are supported.
Signed-off-by: Alexey K
in order
to support in-kernel handling of DMA map/unmap requests.
This adds the iommu_group_get_by_id(id) function which performs
this search.
Signed-off-by: Alexey Kardashevskiy
Signed-off-by: Paul Mackerras
---
drivers/iommu/iommu.c | 29 +
include/linux/iommu.h
this.
This also adds the virt_only parameter to the KVM module
for debug and performance check purposes.
Tests show that this patch increases transmission speed from 220MB/s
to 750..1020MB/s on 10Gb network (Chelsea CXGB3 10Gb ethernet card).
Cc: David Gibson
Signed-off-by: Alexey Kardashevskiy
needs to query for this capability and set the "hcall-multi-tce"
hypertas property only if the capability is present, otherwise
there will be serious performance degradation.
Cc: David Gibson
Signed-off-by: Alexey Kardashevskiy
Signed-off-by: Paul Mackerras
---
Documentation/virtual/k
and we may want
to optimize this.
Cc: David Gibson
Signed-off-by: Alexey Kardashevskiy
Signed-off-by: Paul Mackerras
---
arch/powerpc/include/asm/kvm_host.h |2 +
arch/powerpc/include/asm/kvm_ppc.h | 24 +++
arch/powerpc/kvm/book3s_64_vio.c| 79
On 05/07/2013 07:07 AM, Alex Williamson wrote:
> On Mon, 2013-05-06 at 17:21 +1000, a...@ozlabs.ru wrote:
>> From: Alexey Kardashevskiy
>>
>> The IOMMU API implements groups creating/deletion, device binding
>> and IOMMU map/unmap operations.
>>
>> The Powe
On 05/07/2013 11:42 AM, Alex Williamson wrote:
> On Tue, 2013-05-07 at 10:49 +1000, Alexey Kardashevskiy wrote:
>> On 05/07/2013 07:07 AM, Alex Williamson wrote:
>>> On Mon, 2013-05-06 at 17:21 +1000, a...@ozlabs.ru wrote:
>>>> From: Alexey Kardashevskiy
>>>
On 05/07/2013 03:29 PM, David Gibson wrote:
> On Mon, May 06, 2013 at 05:25:56PM +1000, Alexey Kardashevskiy wrote:
>> This allows the host kernel to handle H_PUT_TCE, H_PUT_TCE_INDIRECT
>> and H_STUFF_TCE requests without passing them to QEMU, which should
>> save time on
On 05/07/2013 04:02 PM, David Gibson wrote:
> On Tue, May 07, 2013 at 03:51:31PM +1000, Alexey Kardashevskiy wrote:
>> On 05/07/2013 03:29 PM, David Gibson wrote:
>>> On Mon, May 06, 2013 at 05:25:56PM +1000, Alexey Kardashevskiy wrote:
>>>> This allows the h
On 05/10/2013 04:51 PM, David Gibson wrote:
> On Mon, May 06, 2013 at 05:25:53PM +1000, 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 virtio
>> devices or emulated PC
between
VFIO and the new handlers is to be made in QEMU
via ioctl to the KVM fd.
The series was made and tested against v3.10-rc1.
Alexey Kardashevskiy (4):
KVM: PPC: Add support for multiple-TCE hcalls
powerpc: Prepare to support kernel handling of IOMMU map/unmap
KVM: PPC: Add support for
functionality of this patch, QEMU
needs to query for this capability and set the "hcall-multi-tce"
hypertas property only if the capability is present, otherwise
there will be serious performance degradation.
Cc: David Gibson
Signed-off-by: Alexey Kardashevskiy
Signed-off-by: Paul
nvironment as things
like the sparsemem vmemmap mappings aren't accessible.
This adds an API to increment/decrement page counter as
get_user_pages API used for user mode mapping does not work
in the real mode.
CONFIG_SPARSEMEM_VMEMMAP and CONFIG_FLATMEM are supported.
Signed-off-by: Alexey K
patch increases transmission speed from 220MB/s
to 750..1020MB/s on 10Gb network (Chelsea CXGB3 10Gb ethernet card).
Cc: David Gibson
Signed-off-by: Alexey Kardashevskiy
Signed-off-by: Paul Mackerras
---
Changes:
2013-05-20:
* removed get_user() from real mode handlers
* kvm_vcpu_arch::tce_tmp
and we may want
to optimize this.
Cc: David Gibson
Signed-off-by: Alexey Kardashevskiy
Signed-off-by: Paul Mackerras
---
Changes:
* the real mode handler now searches for a huge page by gpa (used to be pte)
* the virtual mode handler prints warning if it is called twice for the same
huge page
/unmapping pages for the guest IO and
provides information about DMA window (required by a POWER
guest).
Cc: David Gibson
Signed-off-by: Alexey Kardashevskiy
Signed-off-by: Paul Mackerras
---
Documentation/vfio.txt | 63 ++
drivers/vfio/Kconfig|6
gainst v3.10-rc1.
It also contains some bugfixes which are mentioned (if any) in the patch
messages.
Alexey Kardashevskiy (3):
powerpc/vfio: Enable on POWERNV platform
powerpc/vfio: Implement IOMMU driver for VFIO
powerpc/vfio: Enable on pSeries platform
Documentation/vfio.txt
network.
To enable VFIO on POWER, enable SPAPR_TCE_IOMMU config
option and configure VFIO as required.
Cc: David Gibson
Signed-off-by: Alexey Kardashevskiy
Signed-off-by: Paul Mackerras
---
Changes:
* the PCI devices are added to groups from subsys_initcall_sync (used to
be done via
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 |2
Oops, wrong subject (cut-n-paste) :)
There are 3 patches, not 5.
On 05/21/2013 01:33 PM, Alexey Kardashevskiy wrote:
> 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.
&g
On 05/24/2013 12:56 AM, Alex Williamson wrote:
> On Tue, 2013-05-21 at 13:33 +1000, Alexey Kardashevskiy wrote:
>> 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
>> separatel
On 05/25/2013 12:45 PM, David Gibson wrote:
> On Wed, May 22, 2013 at 04:06:57PM -0500, Scott Wood wrote:
>> On 05/20/2013 10:06:46 PM, Alexey Kardashevskiy wrote:
>>> diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
>>> index 8465c2a..da6bf61 100644
On 05/27/2013 08:23 PM, Paolo Bonzini wrote:
> Il 25/05/2013 04:45, David Gibson ha scritto:
+ case KVM_CREATE_SPAPR_TCE_IOMMU: {
+ struct kvm_create_spapr_tce_iommu create_tce_iommu;
+ struct kvm *kvm = filp->private_data;
+
+ r = -EFAULT;
On 05/27/2013 08:08 PM, Paolo Bonzini wrote:
> Il 21/05/2013 05:06, Alexey Kardashevskiy ha scritto:
>> This adds real mode handlers for the H_PUT_TCE_INDIRECT and
>> H_STUFF_TCE hypercalls for QEMU emulated devices such as virtio
>> devices or emulated PCI.
>
> Do you
On 05/29/2013 03:45 AM, Scott Wood wrote:
> On 05/26/2013 09:44:24 PM, Alexey Kardashevskiy wrote:
>> On 05/25/2013 12:45 PM, David Gibson wrote:
>> > On Wed, May 22, 2013 at 04:06:57PM -0500, Scott Wood wrote:
>> >> On 05/20/2013 10:06:46 PM, Alexey Kardashevskiy w
On 05/29/2013 09:35 AM, Scott Wood wrote:
> On 05/28/2013 06:30:40 PM, Alexey Kardashevskiy wrote:
>> >> >>> @@ -939,6 +940,9 @@ struct kvm_s390_ucas_mapping {
>> >> >>> #define KVM_GET_DEVICE_ATTR _IOW(KVMIO, 0xe2, struct
>> >> &
On 05/29/2013 02:32 AM, Scott Wood wrote:
> On 05/24/2013 09:45:24 PM, David Gibson wrote:
>> On Wed, May 22, 2013 at 04:06:57PM -0500, Scott Wood wrote:
>> > On 05/20/2013 10:06:46 PM, Alexey Kardashevskiy wrote:
>> > >diff --git a/arch/powerpc/kvm/powerpc.
On 05/30/2013 06:05 AM, Scott Wood wrote:
> On 05/28/2013 07:12:32 PM, Alexey Kardashevskiy wrote:
>> On 05/29/2013 09:35 AM, Scott Wood wrote:
>> > On 05/28/2013 06:30:40 PM, Alexey Kardashevskiy wrote:
>> >> >> >>> @@ -939,6 +940,9 @@ struct
On 05/30/2013 09:14 AM, Scott Wood wrote:
> On 05/29/2013 06:10:33 PM, Alexey Kardashevskiy wrote:
>> On 05/30/2013 06:05 AM, Scott Wood wrote:
>> > On 05/28/2013 07:12:32 PM, Alexey Kardashevskiy wrote:
>> >> On 05/29/2013 09:35 AM, Scott Wood wrote:
>> &g
devtmpfs_delete_node() calls devnode() callback with mode==NULL but
vfio still tries to write there.
The patch fixes this.
Signed-off-by: Alexey Kardashevskiy
---
Steps to reproduce on freshly booted system with no devices given to VFIO:
modprobe vfio
rmmod vfio_iommu_spapr_tce
rmmod vfio
Ben, ping! :)
This series has tiny fixes (capability and ioctl numbers,
changed documentation, compile errors in some configuration).
More details are in the commit messages.
Rebased on v3.10-rc4.
Alexey Kardashevskiy (4):
KVM: PPC: Add support for multiple-TCE hcalls
powerpc: Prepare to
functionality of this patch, QEMU
needs to query for this capability and set the "hcall-multi-tce"
hypertas property only if the capability is present, otherwise
there will be serious performance degradation.
Cc: David Gibson
Signed-off-by: Alexey Kardashevskiy
Signed-off-by: Paul
patch increases transmission speed from 220MB/s
to 750..1020MB/s on 10Gb network (Chelsea CXGB3 10Gb ethernet card).
Cc: David Gibson
Signed-off-by: Alexey Kardashevskiy
Signed-off-by: Paul Mackerras
---
Changes:
2013/06/05:
* changed capability number
* changed ioctl number
* update the doc
nvironment as things
like the sparsemem vmemmap mappings aren't accessible.
This adds an API to increment/decrement page counter as
get_user_pages API used for user mode mapping does not work
in the real mode.
CONFIG_SPARSEMEM_VMEMMAP and CONFIG_FLATMEM are supported.
Signed-off-by: Alexey K
and we may want
to optimize this.
Cc: David Gibson
Signed-off-by: Alexey Kardashevskiy
Signed-off-by: Paul Mackerras
---
Changes:
2013/06/05:
* fixed compile error when CONFIG_IOMMU_API=n
2013/05/20:
* the real mode handler now searches for a huge page by gpa (used to be pte)
* the virtual
On 06/17/2013 08:06 AM, Alexander Graf wrote:
>
> On 05.06.2013, at 08:11, 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
On 06/17/2013 06:02 PM, Alexander Graf wrote:
>
> On 17.06.2013, at 09:55, Alexey Kardashevskiy wrote:
>
>> On 06/17/2013 08:06 AM, Alexander Graf wrote:
>>>
>>> On 05.06.2013, at 08:11, Alexey Kardashevskiy wrote:
>>>
>>>> This
On 06/17/2013 06:40 PM, Alexander Graf wrote:
>
> On 17.06.2013, at 10:34, Alexey Kardashevskiy wrote:
>
>> On 06/17/2013 06:02 PM, Alexander Graf wrote:
>>>
>>> On 17.06.2013, at 09:55, Alexey Kardashevskiy wrote:
>>>
>>>> On 06/1
On 06/16/2013 02:26 PM, Benjamin Herrenschmidt wrote:
>> +#if defined(CONFIG_SPARSEMEM_VMEMMAP) || defined(CONFIG_FLATMEM)
>> +int realmode_get_page(struct page *page)
>> +{
>> +if (PageCompound(page))
>> +return -EAGAIN;
>> +
>> +get_page(page);
>> +
>> +return 0;
>> +}
>>
Signed-off-by: Alexey Kardashevskiy
---
Documentation/virtual/kvm/api.txt |8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/Documentation/virtual/kvm/api.txt
b/Documentation/virtual/kvm/api.txt
index 5f91eda..6365fef 100644
--- a/Documentation/virtual/kvm/api.txt
On 06/16/2013 02:39 PM, Benjamin Herrenschmidt wrote:
>> static pte_t kvmppc_lookup_pte(pgd_t *pgdir, unsigned long hva, bool
>> writing,
>> -unsigned long *pte_sizep)
>> +unsigned long *pte_sizep, bool do_get_page)
>> {
>> pte_t *ptep;
>> unsign
On 06/20/2013 01:49 AM, Alex Williamson wrote:
> On Thu, 2013-06-20 at 00:50 +1000, Benjamin Herrenschmidt wrote:
>> On Wed, 2013-06-19 at 11:58 +0200, Alexander Graf wrote:
>>
Alex, any objection ?
>>>
>>> Which Alex? :)
>>
>> Heh, mostly Williamson in this specific case but your input is sti
On 06/20/2013 05:47 PM, Benjamin Herrenschmidt wrote:
> On Thu, 2013-06-20 at 15:28 +1000, David Gibson wrote:
>>> Just out of curiosity - would not get_file() and fput_atomic() on a
>> group's
>>> file* do the right job instead of vfio_group_add_external_user() and
>>> vfio_group_del_external_user
Signed-off-by: Alexey Kardashevskiy
---
Documentation/vfio.txt |6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/Documentation/vfio.txt b/Documentation/vfio.txt
index c55533c..d7993dc 100644
--- a/Documentation/vfio.txt
+++ b/Documentation/vfio.txt
@@ -172,12 +172,12
Cool, thanks!
So we will need only this (to be called from KVM), and that will be it, right?
int vfio_group_iommu_id_from_file(struct file *filep)
...
On 06/22/2013 07:12 AM, Alex Williamson wrote:
> vfio_group_fops_open attempts to limit concurrent sessions by
> disallowing opens once group->
On 06/22/2013 11:26 AM, Alex Williamson wrote:
> On Sat, 2013-06-22 at 11:16 +1000, Alexey Kardashevskiy wrote:
>> Cool, thanks!
>>
>> So we will need only this (to be called from KVM), and that will be it,
>> right?
>
> For what? This is not the external
On 06/22/2013 12:57 PM, Alex Williamson wrote:
> On Sat, 2013-06-22 at 12:44 +1000, Alexey Kardashevskiy wrote:
>> On 06/22/2013 11:26 AM, Alex Williamson wrote:
>>> On Sat, 2013-06-22 at 11:16 +1000, Alexey Kardashevskiy wrote:
>>>> Cool, thanks!
>>>>
&g
On 06/21/2013 12:55 AM, Alex Williamson wrote:
> On Thu, 2013-06-20 at 18:48 +1000, Alexey Kardashevskiy wrote:
>> On 06/20/2013 05:47 PM, Benjamin Herrenschmidt wrote:
>>> On Thu, 2013-06-20 at 15:28 +1000, David Gibson wrote:
>>>>> Just out of curiosity - wou
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