.
Signed-off-by: Matt Evans m...@ozlabs.org
For the bits derived from my qemu code:
Signed-off-by: David Gibson da...@gibson.dropbear.id.au
For the bits derived from my qemu code:
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
--
Alexey
--
To unsubscribe from this list: send the line
The following patches add MSIX support for PCI on POWER.
The first aim is virtio-pci so it was tested. It will also support
VFIO when it becomes available in public.
Alexey Kardashevskiy (3):
msi/msix: added functions to API to set up message address and data
pseries: added allocator
-by: Alexey Kardashevskiy a...@ozlabs.ru
---
hw/msi.c | 14 ++
hw/msi.h |1 +
hw/msix.c | 10 ++
hw/msix.h |3 +++
4 files changed, 28 insertions(+), 0 deletions(-)
diff --git a/hw/msi.c b/hw/msi.c
index 5d6ceb6..124878a 100644
--- a/hw/msi.c
+++ b/hw/msi.c
The patch adds a simple helper which allocates a consecutive sequence
of IRQs calling spapr_allocate_irq for each and checks that allocated
IRQs go consequently.
The patch is required for upcoming support of MSI/MSIX on POWER.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
hw/spapr.c
address and data patch.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
hw/spapr.c |9 ++-
hw/spapr_pci.c | 266 +--
hw/spapr_pci.h | 13 +++-
trace-events |9 ++
4 files changed, 284 insertions(+), 13 deletions(-)
diff
The PCIHostState struct already contains SysBusDevice so
the one in sPAPRPHBState has to go.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
hw/spapr_pci.c |4 ++--
hw/spapr_pci.h |1 -
2 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/hw/spapr_pci.c b/hw/spapr_pci.c
spapr_populate_pci_devices() populates the device tree only with bus
properties and has nothing to do with the devices on it as PCI BAR
allocation is done by the system firmware (SLOF).
New name - spapr_populate_pci_dt() - describes the functionality better.
Signed-off-by: Alexey Kardashevskiy
It is convenient for debug to be able to switch on/off some events easily.
The only possibility now is to remove event name from the file completely
and type it again when we want it back.
The patch adds '#' symbol handling as a comment specifier.
Signed-off-by: Alexey Kardashevskiy
Forgot to CC: someone :)
On 14/06/12 14:29, Alexey Kardashevskiy wrote:
The following patches add MSIX support for PCI on POWER.
The first aim is virtio-pci so it was tested. It will also support
VFIO when it becomes available in public.
Alexey Kardashevskiy (3):
msi/msix: added
On 14/06/12 14:56, Alex Williamson wrote:
On Thu, 2012-06-14 at 14:31 +1000, Alexey Kardashevskiy wrote:
Normally QEMU expects the guest to initialize MSI/MSIX vectors.
However on POWER the guest uses RTAS subsystem to configure MSI/MSIX and
does not write these vectors to device's config
On 14/06/12 15:38, Alex Williamson wrote:
On Thu, 2012-06-14 at 15:17 +1000, Alexey Kardashevskiy wrote:
On 14/06/12 14:56, Alex Williamson wrote:
On Thu, 2012-06-14 at 14:31 +1000, Alexey Kardashevskiy wrote:
Normally QEMU expects the guest to initialize MSI/MSIX vectors.
However on POWER
On 14/06/12 23:18, Stefan Hajnoczi wrote:
On Thu, Jun 14, 2012 at 02:41:40PM +1000, Alexey Kardashevskiy wrote:
It is convenient for debug to be able to switch on/off some events easily.
The only possibility now is to remove event name from the file completely
and type it again when we want
where MSI/MSIX vectors point to.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
hw/msi.c | 14 ++
hw/msi.h |1 +
hw/msix.c |8
hw/msix.h |3 +++
4 files changed, 26 insertions(+)
diff --git a/hw/msi.c b/hw/msi.c
index 5233204..c7b3e6a 100644
--- a/hw
for a symmetry.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
hw/msi.c | 29 +
hw/msi.h |2 ++
hw/msix.c | 11 ++-
hw/msix.h |3 +++
4 files changed, 44 insertions(+), 1 deletion(-)
diff --git a/hw/msi.c b/hw/msi.c
index 5233204..9ad84a4 100644
On 21/06/12 20:38, Jan Kiszka wrote:
On 2012-06-21 12:28, Alexey Kardashevskiy wrote:
On 21/06/12 17:39, Jan Kiszka wrote:
On 2012-06-21 09:18, Alexey Kardashevskiy wrote:
agrhhh. sha1 of the patch changed after rebasing :)
Added (msi|msix)_(set|get)_message() function for whoever might
hypercalls. So in order to support MSIX for virtio-pci on
POWER we have to initialize MSI/MSIX message from QEMU.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
hw/msi.c | 13 +
hw/msi.h |1 +
hw/msix.c |9 +
hw/msix.h |2 ++
4 files changed, 25 insertions
On 21/06/12 21:49, Jan Kiszka wrote:
On 2012-06-21 13:39, Alexey Kardashevskiy wrote:
Added (msi|msix)_set_message() functions.
Currently msi_notify()/msix_notify() write to these vectors to
signal the guest about an interrupt so the correct values have to
written there by the guest or QEMU
vectors, instead
it uses RTAS hypercalls. So in order to support MSIX for virtio-pci on
POWER we have to initialize MSI/MSIX message from QEMU.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
hw/msi.c | 13 +
hw/msi.h |1 +
hw/msix.c |9 +
hw/msix.h |2 ++
4
Ping?
On 22/06/12 11:15, Alexey Kardashevskiy wrote:
Added (msi|msix)_set_message() function for whoever might
want to use them.
Currently msi_notify()/msix_notify() write to these vectors to
signal the guest about an interrupt so the correct values have to
written there by the guest
On 18/07/12 22:43, Michael S. Tsirkin wrote:
On Thu, Jun 21, 2012 at 09:39:10PM +1000, Alexey Kardashevskiy wrote:
Added (msi|msix)_set_message() functions.
Currently msi_notify()/msix_notify() write to these vectors to
signal the guest about an interrupt so the correct values have
On 19/07/12 01:23, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 11:17:12PM +1000, Alexey Kardashevskiy wrote:
On 18/07/12 22:43, Michael S. Tsirkin wrote:
On Thu, Jun 21, 2012 at 09:39:10PM +1000, Alexey Kardashevskiy wrote:
Added (msi|msix)_set_message() functions.
Currently msi_notify
From: Paul Mackerras pau...@samba.org
TODO: ask Paul to make a proper message.
This is the fix for a host kernel compiled with a page size
other than 4K (TCE page size). In the case of a 64K page size,
the host used to lose address bits in hpte_rpn().
The patch fixes it.
Signed-off-by: Alexey
,
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
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;
+
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 da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Signed-off-by: Paul Mackerras
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 Kardashevskiy a...@ozlabs.ru
and we may want
to optimize this.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_host.h |2 +
arch/powerpc/include/asm/kvm_ppc.h | 24 +++
arch/powerpc/kvm
.
Although the series compiles, it does not make sense without VFIO patches which
are posted separately.
The iommu: Add a function to find an iommu group by id patch has already
gone to linux-next (from iommu tree) but it is not in upstream yet so
I am including it here for the reference.
Alexey
-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Signed-off-by: Paul Mackerras pau...@samba.org
---
Documentation/virtual/kvm/api.txt | 28
arch/powerpc/include/asm/kvm_host.h |2 +
arch/powerpc/include/asm/kvm_ppc.h |2 +
arch/powerpc/include/uapi/asm/kvm.h |7 +
arch/powerpc/kvm
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 a...@ozlabs.ru
Signed-off-by: Paul Mackerras pau...@samba.org
---
drivers/iommu/iommu.c | 29
physical
address. This makes lookup_linux_pte() public so that code can call
it.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_ppc.h |3 +++
arch/powerpc/kvm
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 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
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 a...@ozlabs.ru
The IOMMU API implements groups
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 host kernel to handle H_PUT_TCE
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 PCI. These calls allow adding
the 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 da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
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 Kardashevskiy a...@ozlabs.ru
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
that this patch increases transmission speed from 220MB/s
to 750..1020MB/s on 10Gb network (Chelsea CXGB3 10Gb ethernet card).
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Signed-off-by: Paul Mackerras pau...@samba.org
---
Changes:
2013-05-20:
* removed
and we may want
to optimize this.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Signed-off-by: Paul Mackerras pau...@samba.org
---
Changes:
* the real mode handler now searches for a huge page by gpa (used to be pte)
* the virtual mode handler
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
--- a/arch/powerpc/kvm/powerpc.c
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;
+ if
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 wrote:
diff --git a/arch/powerpc/kvm
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
kvm_device_attr)
#define KVM_HAS_DEVICE_ATTR _IOW(KVMIO, 0xe3, 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.c b/arch/powerpc/kvm/powerpc.c
index 8465c2a
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 kvm_s390_ucas_mapping {
#define KVM_GET_DEVICE_ATTR _IOW
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:
On 05/28/2013 06:30:40 PM, Alexey Kardashevskiy wrote
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 Kardashevskiy a...@ozlabs.ru
the 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 da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
that this patch increases transmission speed from 220MB/s
to 750..1020MB/s on 10Gb network (Chelsea CXGB3 10Gb ethernet card).
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Signed-off-by: Paul Mackerras pau...@samba.org
---
Changes:
2013/06/05:
* changed
and we may want
to optimize this.
Cc: David Gibson da...@gibson.dropbear.id.au
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
Signed-off-by: Paul Mackerras pau...@samba.org
---
Changes:
2013/06/05:
* fixed compile error when CONFIG_IOMMU_API=n
2013/05/20:
* the real mode handler now searches
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. These calls allow adding multiple entries
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 06/17/2013 08:06 AM, Alexander Graf wrote:
On 05.06.2013, at 08:11, Alexey
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;
+}
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;
unsigned int shift
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 still
welcome :-)
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()?
I was
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 - would not get_file() and fput_atomic
The changes are:
1. rebased on v3.10-rc7
2. removed spinlocks from real mode
3. added security checks between KVM and VFIO
MOre details in the individual patch comments.
Alexey Kardashevskiy (8):
KVM: PPC: reserve a capability number for multitce support
KVM: PPC: reserve a capability
user API support
in VFIO is required.
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:
2013/06
and we may want
to optimize this.
Signed-off-by: Paul Mackerras pau...@samba.org
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
2013/06/27:
* list of huge pages replaces with hashtable for better performance
* spinlock removed from real mode and only protects insertion of new
huge
Gibson da...@gibson.dropbear.id.au
Signed-off-by: Paul Mackerras pau...@samba.org
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
2013/06/27:
* realmode_get_page() fixed to use get_page_unless_zero(). If failed,
the call will be passed from real to virtual mode and safely handled
the 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.
Signed-off-by: Paul Mackerras pau...@samba.org
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
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
---
include/linux/hashtable.h | 15 +++
1
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
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 d88c8ee..970b1f5 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -666,6 +666,7
.
The vfio: Limit group opens patch is also required for the consistency.
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
drivers/vfio/vfio.c | 53 +++
1 file changed, 53 insertions(+)
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index
On 06/27/2013 07:42 PM, Benjamin Herrenschmidt wrote:
On Thu, 2013-06-27 at 16:59 +1000, Stephen Rothwell wrote:
+/* Allows an external user (for example, KVM) to unlock an IOMMU
group */
+static void vfio_group_del_external_user(struct file *filep)
+{
+ struct vfio_group *group =
hash_for_each_possible_rcu_notrace(),
posted earlier today.
Alexey Kardashevskiy (8):
KVM: PPC: reserve a capability number for multitce support
KVM: PPC: reserve a capability and ioctl numbers for realmode VFIO
vfio: add external user support
powerpc: Prepare to support kernel handling of IOMMU map/unmap
powerpc
-off-by: Paul Mackerras pau...@samba.org
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
2013/06/27:
* realmode_get_page() fixed to use get_page_unless_zero(). If failed,
the call will be passed from real to virtual mode and safely handled.
* added comment to PageCompound() in include
the 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.
Signed-off-by: Paul Mackerras pau...@samba.org
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
an iommu_group struct for later use.
4. When KVM is finished, it calls vfio_group_put_external_user() to
release the VFIO group by decrementing the container user counter.
Everything gets released.
The vfio: Limit group opens patch is also required for the consistency.
Signed-off-by: Alexey
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
---
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
index
user API support
in VFIO is required.
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:
2013/07
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
---
include/uapi/linux/kvm.h | 1 +
1 file changed, 1 insertion
and we may want
to optimize this.
Signed-off-by: Paul Mackerras pau...@samba.org
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
2013/06/27:
* list of huge pages replaces with hashtable for better performance
* spinlock removed from real mode and only protects insertion of new
huge
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
---
arch/powerpc/include/asm/machdep.h| 12 ++
arch/powerpc/platforms/powernv/pci-ioda.c | 26 +++--
arch
On 07/09/2013 07:52 AM, Alex Williamson wrote:
On Sun, 2013-07-07 at 01:07 +1000, Alexey Kardashevskiy wrote:
VFIO is designed to be used via ioctls on file descriptors
returned by VFIO.
However in some situations support for an external user is required.
The first user is KVM on PPC64
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 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 10:51 PM, Alexander Graf wrote:
On 11.07.2013, at 14:39, Benjamin Herrenschmidt wrote:
On Thu, 2013-07-11 at 13:15 +0200, Alexander Graf wrote:
And that's bad. Jeez, seriously. Don't argue this case. We enable new
features individually unless we're 100% sure we can keep
On 07/11/2013 10:58 PM, Benjamin Herrenschmidt wrote:
On Thu, 2013-07-11 at 14:51 +0200, Alexander Graf wrote:
I don't like bloat usually. But Alexey even had an #ifdef DEBUG in
there to selectively disable in-kernel handling of multi-TCE. Not
calling ENABLE_CAP would give him exactly that
On 07/11/2013 11:41 PM, chandrashekar shastri wrote:
Hi All,
I complied the latest kernel 3.10.0+ pulled from the git on top of
3.10.0-rc5+ by enabling the new Virtualiztaion features. The compliation
was sucessfull, when I rebooted the machine it fails to boot with error as
systemd [1] :
. 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
---
arch/powerpc/include/asm/iommu.h | 9 +-
arch/powerpc/kernel/iommu.c | 197
On 07/16/2013 10:53 AM, Alexey Kardashevskiy wrote:
The changes are:
1. rebased on v3.11-rc1 so the capability numbers changed again
2. fixed multiple comments from maintainers
3. KVM: PPC: Add support for IOMMU in-kernel handling is split into
2 patches, the new one is powerpc/iommu: rework
Ping, anyone, please?
Ben needs ack from any of MM people before proceeding with this patch. Thanks!
On 07/16/2013 10:53 AM, 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
On 07/23/2013 12:23 PM, Alex Williamson wrote:
On Tue, 2013-07-16 at 10:53 +1000, Alexey Kardashevskiy wrote:
VFIO is designed to be used via ioctls on file descriptors
returned by VFIO.
However in some situations support for an external user is required.
The first user is KVM on PPC64
hash_for_each_possible_rcu_notrace(),
Ben suggested to push it via his tree so I included it to the series.
4. realmode_(get|put)_page is reworked.
More details in the individual patch comments.
Alexey Kardashevskiy (10):
hashtable: add hash_for_each_possible_rcu_notrace()
KVM: PPC: reserve a capability number for multitce
.
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
-by: Paul Mackerras pau...@samba.org
Signed-off-by: Alexey Kardashevskiy a...@ozlabs.ru
---
Changes:
2013/07/11:
* removed multiple #ifdef IOMMU_API as IOMMU_API is always enabled
for KVM_BOOK3S_64
* kvmppc_gpa_to_hva_and_get also returns host phys address. Not much sense
for this here but the next
*. 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
. 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
---
arch/powerpc/include/asm/iommu.h | 9 +-
arch/powerpc/kernel/iommu.c | 198
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:
2013/11/07:
* added comment why stdcix cannot be used in virtual mode
2013/08/07:
* tested on p7ioc and fixed a bug with realmode
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
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
Signed-off
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:
* changed the number
2013/07/11:
* changed order in a file, added comment about a gap in ioctl number
Signed-off
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
---
include/linux/hashtable.h | 15 +++
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