Hi Nan,
On Mon, Aug 24, 2015 at 06:26:33AM +, Xiao, Nan (Nan@HPS Performance,
Beijing) wrote:
drivers/iommu/intel-iommu.c | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 0649b94..4213598 100644
Hi Nan,
I applied this patch with some formatting fixes, thanks. Details below:
From: Xiao, Nan (Nan@HPS Performance, Beijing) nan.x...@hp.com
git-am made this author-line out of your patch: (Nan@HPS (Nan@HPS
Which doesn't even look like a valid email address. I fixed it, but
please include a
On Tue, Aug 25, 2015 at 08:46:27AM +, Xiao, Nan (Nan@HPservers-Core-OE-PSC)
wrote:
Yes, your patch is simple and better!
Okay, I queued this patch to my x86/vt-d branch:
From 03932776424a799c3f065a69e98076a78530288b Mon Sep 17 00:00:00 2001
From: Joerg Roedel jroe...@suse.de
Date: Tue, 25
This patch updates the Posted-Interrupts Descriptor when vCPU
is blocked.
pre-block:
- Add the vCPU to the blocked per-CPU list
- Set 'NV' to POSTED_INTR_WAKEUP_VECTOR
post-block:
- Remove the vCPU from the per-CPU list
Signed-off-by: Feng Wu feng...@intel.com
---
Enable VT-d Posted-Interrtups and add a command line
parameter for it.
Signed-off-by: Feng Wu feng...@intel.com
---
Documentation/kernel-parameters.txt | 1 +
drivers/iommu/irq_remapping.c | 12
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git
Extend struct pi_desc for VT-d Posted-Interrupts.
Signed-off-by: Feng Wu feng...@intel.com
---
arch/x86/kvm/vmx.c | 20 ++--
1 file changed, 18 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 83b7b5c..271dd70 100644
---
Enable irq bypass manager for vfio PCI devices.
Signed-off-by: Feng Wu feng...@intel.com
---
drivers/vfio/pci/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/vfio/pci/Kconfig b/drivers/vfio/pci/Kconfig
index 579d83b..02912f1 100644
--- a/drivers/vfio/pci/Kconfig
+++
Make kvm_set_msi_irq() public, we can use this function outside.
Signed-off-by: Feng Wu feng...@intel.com
---
arch/x86/include/asm/kvm_host.h | 4
arch/x86/kvm/irq_comm.c | 4 ++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h
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
Define two weak arch callbacks so that archs that don't need
them don't need define them.
Signed-off-by: Feng Wu feng...@intel.com
---
virt/kvm/eventfd.c | 10 ++
1 file changed, 10 insertions(+)
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index d7a230f..f3050b9 100644
---
Implement the following callbacks for x86:
- kvm_arch_irq_bypass_add_producer
- kvm_arch_irq_bypass_del_producer
- kvm_arch_irq_bypass_stop: dummy callback
- kvm_arch_irq_bypass_resume: dummy callback
and set CONFIG_HAVE_KVM_IRQ_BYPASS for x86.
Signed-off-by: Feng Wu feng...@intel.com
---
Hi Joerg,
Firstly, thanks very much for your detailed comments!
I first send this patch to linux-ker...@vger.kernel.org only (the result of
get_maintainer.pl ), but after about 3
days, there is no any responses. I thought no one would notice this bug, so I
resend the patch to you. But this
Currently, we don't support urgent interrupt, all interrupts
are recognized as non-urgent interrupt, so we cannot post
interrupts when 'SN' is set.
If the vcpu is in guest mode, it cannot have been scheduled out,
and that's the only case when SN is set currently, warning if
SN is set.
Define an interface to get PI descriptor address from the vCPU structure.
Signed-off-by: Feng Wu feng...@intel.com
---
arch/x86/include/asm/kvm_host.h | 2 ++
arch/x86/kvm/vmx.c | 11 +++
2 files changed, 13 insertions(+)
diff --git a/arch/x86/include/asm/kvm_host.h
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 the registration/unregistration of an
irq_bypass_producer for MSI/MSIx on vfio pci devices.
v6:
- Make the add_consumer and del_consumer callbacks static
- Remove pointless INIT_LIST_HEAD to 'vdev-ctx[vector].producer.node)'
- Use dev_info instead of WARN_ON() when
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 feng...@intel.com
---
include/linux/kvm_host.h | 14 ++
virt/kvm/irqchip.c | 10 --
2 files changed, 14 insertions(+), 10 deletions(-)
diff
This patch adds the routine to update IRTE for posted-interrupts
when guest changes the interrupt configuration.
Signed-off-by: Feng Wu feng...@intel.com
---
arch/x86/kvm/x86.c | 73 ++
1 file changed, 73 insertions(+)
diff --git
This patch adds some helper functions to manipulate the
Posted-Interrupts Descriptor.
Signed-off-by: Feng Wu feng...@intel.com
---
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 271dd70..316f9bf
This patch defines a new interface kvm_intr_is_single_vcpu(),
which can returns whether the interrupt is for single-CPU or not.
It is used by VT-d PI, since now we only support single-CPU
interrupts, For lowest-priority interrupts, if user configures
it via /proc/irq or uses irqbalance to make it
This patch adds an arch specific hooks 'arch_update' in
'struct kvm_kernel_irqfd'. On Intel side, it is used to
update the IRTE when VT-d posted-interrupts is used.
Signed-off-by: Feng Wu feng...@intel.com
---
arch/x86/include/asm/kvm_host.h | 2 ++
arch/x86/kvm/x86.c | 5 +
Hi Joerg,
Yes, your patch is simple and better!
Best Regards
Nan Xiao
-Original Message-
From: j...@8bytes.org [mailto:j...@8bytes.org]
Sent: Tuesday, August 25, 2015 4:42 PM
To: Xiao, Nan (Nan@HPservers-Core-OE-PSC)
Cc: dw...@infradead.org; iommu@lists.linux-foundation.org;
Hi Joerg,
In commit message:
There is a bug in iommu_context_addr() which will always use the lower
context table, event when the upper context table needs to be used. Fix this
issue.
I think it should be even when the upper context table , not event.
Thanks!
Best Regards
Nan Xiao
On Tue, Aug 25, 2015 at 09:15:39AM +, Xiao, Nan (Nan@HPservers-Core-OE-PSC)
wrote:
In commit message:
There is a bug in iommu_context_addr() which will always use the lower
context table, event when the upper context table needs to be used. Fix
this issue.
I think it should be
On Tue, 2015-08-25 at 16:50 +0800, Feng Wu wrote:
This patch adds the routine to update IRTE for posted-interrupts
when guest changes the interrupt configuration.
Signed-off-by: Feng Wu feng...@intel.com
---
arch/x86/kvm/x86.c | 73
++
-Original Message-
From: Alex Williamson [mailto:alex.william...@redhat.com]
Sent: Wednesday, August 26, 2015 3:58 AM
To: Wu, Feng
Cc: pbonz...@redhat.com; j...@8bytes.org; mtosa...@redhat.com;
eric.au...@linaro.org; k...@vger.kernel.org;
iommu@lists.linux-foundation.org;
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