Hello,
On Friday 12 December 2014 13:15:51 Tomasz Figa wrote:
> On Fri, Dec 12, 2014 at 5:48 AM, Rafael J. Wysocki wrote:
> > On Thursday, December 11, 2014 04:51:37 PM Ulf Hansson wrote:
> >> On 11 December 2014 at 16:31, Kevin Hilman wrote:
> >> > [+ Laurent Pinchart]
> >> >
> >> > Tomasz Figa
[+ Laurent Pinchart]
Tomasz Figa writes:
> On Thu, Dec 11, 2014 at 8:58 PM, Ulf Hansson wrote:
[...]
>>> @@ -988,11 +1107,28 @@ static int rk_iommu_probe(struct platform_device
>>> *pdev)
>>> return -ENXIO;
>>> }
>>>
>>> + pm_runtime_no_callbacks(dev);
>>> +
Tomasz Figa writes:
[...]
> We have a power domain, which contains an IOMMU and an IP block, which
> can do bus transactions through that IOMMU. Of course the IP block is
> not aware of the IOMMU, because this is just an integration detail and
> on other platforms using the same IP block the IOM
On Fri, Dec 12, 2014 at 10:25:31AM +0800, Li, ZhenHua wrote:
> Sorry I have no plan yet.
> Could you send me your logs on your AMD system?
> On 12/10/2014 04:46 PM, Baoquan He wrote:
> >This issue happens on AMD iommu too, do you have any plans or
> >thoughts on that?
I think the best approach fo
Hi Jerry,
On Thu, Dec 11, 2014 at 09:35:34AM -0700, Jerry Hoemann wrote:
> On Tue, Dec 09, 2014 at 01:15:25PM +0100, Joerg Roedel wrote:
> > >From d65b236d0f27fe3ef7ac4d12cceb0da67aec86ce Mon Sep 17 00:00:00 2001
> > From: Joerg Roedel
> > Date: Tue, 9 Dec 2014 12:56:45 +0100
> > Subject: [PATCH]
Hi Linus,
The following changes since commit fc14f9c1272f62c3e8d01300f52467c0d9af50f9:
Linux 3.18-rc5 (2014-11-16 16:36:20 -0800)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
tags/iommu-updates-v3.19
for you to fetch changes up to 76
This patch updates the Posted-Interrupts Descriptor when vCPU
is blocked.
pre-block:
- Add the vCPU to the blocked per-CPU list
- Clear 'SN'
- Set 'NV' to POSTED_INTR_WAKEUP_VECTOR
post-block:
- Remove the vCPU from the per-CPU list
Signed-off-by: Feng Wu
---
arch/x86/include/asm/kvm_host.h |
Enable VT-d Posted-Interrtups and add a command line
parameter for it.
Signed-off-by: Feng Wu
---
Documentation/kernel-parameters.txt | 1 +
drivers/iommu/irq_remapping.c | 12
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/Documentation/kernel-parameters.txt
This patch updates the Posted-Interrupts Descriptor when vCPU
is preempted.
sched out:
- Set 'SN' to suppress furture non-urgent interrupts posted for
the vCPU.
sched in:
- Clear 'SN'
- Change NDST if vCPU is scheduled to a different CPU
- Set 'NV' to POSTED_INTR_VECTOR
Signed-off-by: Feng Wu
-
Currently, we don't support urgent interrupt, all interrupts
are recognized as non-urgent interrupt, so we cannot send
posted-interrupt when 'SN' is set.
Signed-off-by: Feng Wu
---
arch/x86/kvm/vmx.c | 11 +--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/vmx
Define a wakeup worker thread for a vCPU.
Signed-off-by: Feng Wu
---
include/linux/kvm_host.h | 1 +
virt/kvm/kvm_main.c | 9 +
2 files changed, 10 insertions(+)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ca9a393..3d7242c 100644
--- a/include/linux/kvm_h
This patch adds and documents two new attributes
KVM_DEV_VFIO_DEVICE_POST_IRQ and KVM_DEV_VFIO_DEVICE_UNPOST_IRQ
in KVM_DEV_VFIO_DEVICE group. The new attributes are used for
VT-d Posted-Interrupts.
When guest OS changes the interrupt configuration for an
assigned device, such as, MSI/MSIx data/ad
This patch adds the kvm-vfio interface for VT-d Posted-Interrrupts.
When guests update MSI/MSI-x information for an assigned-device,
QEMU will use KVM_DEV_VFIO_DEVICE_POST_IRQ attribute to setup
IRTE for VT-d PI. Userspace program can also use
KVM_DEV_VFIO_DEVICE_UNPOST_IRQ to change back to irq re
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
Currently, we use a global vector as the Posted-Interrupts
Notification Event for all the vCPUs in the system. We need
to introduce another global vector for VT-d Posted-Interrtups,
which will be used to wakeup the sleep vCPU when an external
interrupt from a direct-assigned device happens for that
This patch adds some helper functions to manipulate the
Posted-Interrupts Descriptor.
Signed-off-by: Feng Wu
---
arch/x86/kvm/vmx.c | 26 ++
1 file changed, 26 insertions(+)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index abdb84f..0b1383e 100644
--- a/arch/x86
Implement irq_set_vcpu_affinity for intel_ir_chip.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
---
arch/x86/include/asm/irq_remapping.h | 5 +
drivers/iommu/intel_irq_remapping.c | 35 +++
2 files changed, 40 insertions(+)
diff --git a/arch/x86/include/a
Change struct pi_desc for VT-d Posted-Interrupts.
Signed-off-by: Feng Wu
---
arch/x86/kvm/vmx.c | 15 +--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 3e556c6..abdb84f 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/v
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
---
include/linux/dmar.h | 32
1 file changed, 32 insertions(+)
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 8473756..c7f9cda 100644
--- a/in
This patch initializes the VT-d Posted-Interrupts Descriptor.
Signed-off-by: Feng Wu
---
arch/x86/kvm/vmx.c | 27 +++
1 file changed, 27 insertions(+)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 0b1383e..66ca275 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x
Add helper function to detect VT-d Posted-Interrupts capability.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
---
include/linux/intel-iommu.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index ecaf3a9..8174ae8 100644
--- a/includ
Make kvm_set_msi_irq() public, we can use this function outside.
Signed-off-by: Feng Wu
---
include/linux/kvm_host.h | 2 ++
virt/kvm/irq_comm.c | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index cfa85ac..5cd4420 1
This patch defines macro __KVM_HAVE_ARCH_KVM_VFIO_POST and
implement kvm_arch_vfio_update_pi_irte for x86 architecture.
Signed-off-by: Feng Wu
---
arch/x86/include/asm/kvm_host.h | 2 ++
arch/x86/kvm/Makefile | 2 +-
arch/x86/kvm/kvm_vfio_x86.c | 77 ++
Move struct kvm_irq_routing_table from irqchip.c to kvm_host.h,
so we can use it outside of irqchip.c.
Signed-off-by: Feng Wu
---
include/linux/kvm_host.h | 19 +++
virt/kvm/irqchip.c | 11 ---
2 files changed, 19 insertions(+), 11 deletions(-)
diff --git a/include
This patch adds pi_clear_sn and pi_set_sn to struct kvm_x86_ops,
so we can set/clear SN outside vmx.
Signed-off-by: Feng Wu
---
arch/x86/include/asm/kvm_host.h | 3 +++
arch/x86/kvm/vmx.c | 13 +
2 files changed, 16 insertions(+)
diff --git a/arch/x86/include/asm/kvm_h
Implement irq_set_vcpu_affinity for pci_msi_ir_controller.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
---
arch/x86/kernel/apic/msi.c | 1 +
include/linux/irq.h| 3 +++
2 files changed, 4 insertions(+)
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index da163da
This patch defines a new interface kvm_find_dest_vcpu for
VT-d PI, which can returns the destination vCPU of the
interrupt for guests.
Since VT-d PI cannot handle broadcast/multicast interrupt,
Here we only handle Fixed and Lowest priority interrupts.
The current method of handling guest lowest p
Add the Intel side implementation for capability in
struct irq_remap_ops.
Signed-off-by: Feng Wu
Reviewed-by: Jiang Liu
---
drivers/iommu/intel_irq_remapping.c | 27 +++
drivers/iommu/irq_remapping.c | 2 ++
drivers/iommu/irq_remapping.h | 4
3 files c
Define a interface to get PI descriptor address from the vCPU structure.
Signed-off-by: Feng Wu
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/vmx.c | 12
2 files changed, 13 insertions(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kv
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_rem
With Posted-Interrupts support in Intel CPU and IOMMU, an external
interrupt from assigned-devices could be directly delivered to a
virtual CPU in a virtual machine. Instead of hacking KVM and Intel
IOMMU drivers, we propose a platform independent interface to target
an interrupt to a specific virt
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
Hi Mark,
On Mon, Dec 8, 2014 at 3:20 PM, Mark Zhang wrote:
> This patch adds suspend/resume support for NVIDIA SMMU.
> This patch is created on top of Thierry Reding's patch set:
>
> "[PATCH v7 00/12] NVIDIA Tegra memory controller and IOMMU support"
You should have this comment under the "---
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