On 02/02/2015 12:35 PM, Alex Williamson wrote:
[cc +joerg]
On Mon, 2015-02-02 at 11:01 -0500, Mark Hounschell wrote:
On 01/30/2015 04:51 PM, Alex Williamson wrote:
On Fri, 2015-01-30 at 16:07 -0500, Mark Hounschell wrote:
On 01/30/2015 03:11 PM, Alex Williamson wrote:
On Fri, 2015-01-30 at 1
On Wed, Jan 28 2015 at 04:07:39 AM, Will Deacon wrote:
> On Fri, Jan 23, 2015 at 10:33:20PM +, Mitchel Humpherys wrote:
>> On Fri, Jan 23 2015 at 03:24:15 AM, Will Deacon wrote:
>> > On Thu, Jan 22, 2015 at 11:48:02PM +, Mitchel Humpherys wrote:
>> >> Context interrupts can call domain-sp
[cc +joerg]
On Mon, 2015-02-02 at 11:01 -0500, Mark Hounschell wrote:
> On 01/30/2015 04:51 PM, Alex Williamson wrote:
> > On Fri, 2015-01-30 at 16:07 -0500, Mark Hounschell wrote:
> >> On 01/30/2015 03:11 PM, Alex Williamson wrote:
> >>> On Fri, 2015-01-30 at 19:12 +, Mark Hounschell wrote:
>
On Fri, Jan 30, 2015 at 12:28:14PM +, Joerg Roedel wrote:
> On Wed, Jan 28, 2015 at 02:35:24PM +, Will Deacon wrote:
> > On Tue, Jan 27, 2015 at 12:08:57AM +, Joerg Roedel wrote:
> > > @@ -51,6 +51,7 @@ struct iommu_group {
> > > void (*iommu_data_release)(void *iommu_data);
> > > c
On 02/02/2015 07:18 AM, Catalin Marinas wrote:
On Fri, Jan 30, 2015 at 06:06:27PM +, Murali Karicheri wrote:
On 01/28/2015 12:30 PM, Catalin Marinas wrote:
I think we can remove this check altogether (we leaved without it for a
while) but we need to add 1 when calculating the mask:
On 01/30/2015 04:51 PM, Alex Williamson wrote:
On Fri, 2015-01-30 at 16:07 -0500, Mark Hounschell wrote:
On 01/30/2015 03:11 PM, Alex Williamson wrote:
On Fri, 2015-01-30 at 19:12 +, Mark Hounschell wrote:
I've posted the following email to vger.kernel.org but got no response. I am
trying
On Fri, Jan 30, 2015 at 06:06:27PM +, Murali Karicheri wrote:
> On 01/28/2015 12:30 PM, Catalin Marinas wrote:
> > I think we can remove this check altogether (we leaved without it for a
> > while) but we need to add 1 when calculating the mask:
> >
> > dev->coherent_dma_mask = min(DMA_BIT_
On Fri, Jan 30, 2015 at 09:55:55PM +, Arnd Bergmann wrote:
> ARM allmodconfig gained a new warning when dma_addr_t is 32-bit wide:
>
> drivers/iommu/arm-smmu.c: In function 'arm_smmu_iova_to_phys_hard':
> drivers/iommu/arm-smmu.c:1255:3: warning: right shift count >= width of type
>
> This ch
This patch adds a new interface irq_remapping_cap() to detect
whether irq remapping supports new features, such as VT-d
Posted-Interrupts. We export this function out, so that KVM
code can check this and use this mechanism properly.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
---
arch/x86/inc
Add a new irte_pi structure for VT-d Posted-Interrupts.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
Acked-by: David Woodhouse
---
include/linux/dmar.h | 32
1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/include/linux/dmar.h b/include/linux
Set Posted-Interrupts capability for Intel iommu when IR is enabled,
clear it when IR is disabled.
Signed-off-by: Feng Wu
---
drivers/iommu/intel_irq_remapping.c | 34 ++
drivers/iommu/irq_remapping.c |2 ++
drivers/iommu/irq_remapping.h |3 +
Implement irq_set_vcpu_affinity for intel_ir_chip.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
Acked-by: David Woodhouse
---
arch/x86/include/asm/irq_remapping.h |5
drivers/iommu/intel_irq_remapping.c | 35 ++
2 files changed, 40 insertions(+), 0
We don't need to migrate the irqs for VT-d Posted-Interrupts here.
When 'pst' is set in IRTE, the associated irq will be posted to
guests instead of interrupt remapping. The destination of the
interrupt is set in Posted-Interrupts Descriptor, and the migration
happens during vCPU scheduling.
Howev
This patch adds a new member capability to struct irq_remap_ops,
this new function ops can be used to check whether some
features are supported, such as VT-d Posted-Interrupts.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
---
arch/x86/include/asm/irq_remapping.h |4
drivers/iommu/irq_
VT-d Posted-Interrupts is an enhancement to CPU side Posted-Interrupt.
With VT-d Posted-Interrupts enabled, external interrupts from
direct-assigned devices can be delivered to guests without VMM
intervention when guest is running in non-root mode.
You can find the VT-d Posted-Interrtups Spec. in
Add helper function to detect VT-d Posted-Interrupts capability.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
Acked-by: David Woodhouse
---
include/linux/intel-iommu.h |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-io
Return error when inserting a new IOMMU which doesn't support PI
if PI is currently in use.
Signed-off-by: Feng Wu
---
drivers/iommu/intel_irq_remapping.c |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/iommu/intel_irq_remapping.c
b/drivers/iommu/intel_irq_rem
Made a mistake with Joro's address, will resend this series again, Sorry for
this!
Thanks,
Feng
> -Original Message-
> From: Wu, Feng
> Sent: Monday, February 02, 2015 4:02 PM
> To: dw...@infradead.org; j...@8bytes.or
> Cc: jiang@linux.intel.com; iommu@lists.linux-foundation.org;
> l
Return error when inserting a new IOMMU which doesn't support PI
if PI is currently in use.
Signed-off-by: Feng Wu
---
drivers/iommu/intel_irq_remapping.c |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/iommu/intel_irq_remapping.c
b/drivers/iommu/intel_irq_rem
This patch adds a new interface irq_remapping_cap() to detect
whether irq remapping supports new features, such as VT-d
Posted-Interrupts. We export this function out, so that KVM
code can check this and use this mechanism properly.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
---
arch/x86/inc
Set Posted-Interrupts capability for Intel iommu when IR is enabled,
clear it when IR is disabled.
Signed-off-by: Feng Wu
---
drivers/iommu/intel_irq_remapping.c | 34 ++
drivers/iommu/irq_remapping.c |2 ++
drivers/iommu/irq_remapping.h |3 +
We don't need to migrate the irqs for VT-d Posted-Interrupts here.
When 'pst' is set in IRTE, the associated irq will be posted to
guests instead of interrupt remapping. The destination of the
interrupt is set in Posted-Interrupts Descriptor, and the migration
happens during vCPU scheduling.
Howev
Implement irq_set_vcpu_affinity for intel_ir_chip.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
Acked-by: David Woodhouse
---
arch/x86/include/asm/irq_remapping.h |5
drivers/iommu/intel_irq_remapping.c | 35 ++
2 files changed, 40 insertions(+), 0
Add a new irte_pi structure for VT-d Posted-Interrupts.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
Acked-by: David Woodhouse
---
include/linux/dmar.h | 32
1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/include/linux/dmar.h b/include/linux
VT-d Posted-Interrupts is an enhancement to CPU side Posted-Interrupt.
With VT-d Posted-Interrupts enabled, external interrupts from
direct-assigned devices can be delivered to guests without VMM
intervention when guest is running in non-root mode.
You can find the VT-d Posted-Interrtups Spec. in
This patch adds a new member capability to struct irq_remap_ops,
this new function ops can be used to check whether some
features are supported, such as VT-d Posted-Interrupts.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
---
arch/x86/include/asm/irq_remapping.h |4
drivers/iommu/irq_
Add helper function to detect VT-d Posted-Interrupts capability.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
Acked-by: David Woodhouse
---
include/linux/intel-iommu.h |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-io
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