From: Feng Wu <feng.wu@intel.com>
To: pbonzini@redhat.com, alex.williamson@redhat.com, joro@8bytes.org,
mtosatti@redhat.com
Cc: eric.auger@linaro.org, kvm@vger.kernel.org,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
Feng Wu <feng.wu@intel.com>
Subject: [PATCH v9 00/18] Add VT-d Posted-Interrupts support - including prerequisite series
Date: Fri, 18 Sep 2015 22:29:38 +0800 [thread overview]
Message-ID: <1442586596-5920-1-git-send-email-feng.wu@intel.com> (raw)
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 the following URL:
http://www.intel.com/content/www/us/en/intelligent-systems/intel-technology/vt-directed-io-spec.html
v9:
- Include the whole series:
[01/18]: irq bypasser manager
[02/18] - [06/18]: Common non-architecture part for VT-d PI and ARM side forwarded irq
[07/18] - [18/18]: VT-d PI part
v8:
refer to the changelog in each patch
v7:
* Define two weak irq bypass callbacks:
- kvm_arch_irq_bypass_start()
- kvm_arch_irq_bypass_stop()
* Remove the x86 dummy implementation of the above two functions.
* Print some useful information instead of WARN_ON() when the
irq bypass consumer unregistration fails.
* Fix an issue when calling pi_pre_block and pi_post_block.
v6:
* Rebase on 4.2.0-rc6
* Rebase on https://lkml.org/lkml/2015/8/6/526 and http://www.gossamer-threads.com/lists/linux/kernel/2235623
* 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 irq_bypass_register_producer fails
* Remove optional dummy callbacks for irq producer
v4:
* For lowest-priority interrupt, only support single-CPU destination
interrupts at the current stage, more common lowest priority support
will be added later.
* Accoring to Marcelo's suggestion, when vCPU is blocked, we handle
the posted-interrupts in the HLT emulation path.
* Some small changes (coding style, typo, add some code comments)
v3:
* Adjust the Posted-interrupts Descriptor updating logic when vCPU is
preempted or blocked.
* KVM_DEV_VFIO_DEVICE_POSTING_IRQ --> KVM_DEV_VFIO_DEVICE_POST_IRQ
* __KVM_HAVE_ARCH_KVM_VFIO_POSTING --> __KVM_HAVE_ARCH_KVM_VFIO_POST
* Add KVM_DEV_VFIO_DEVICE_UNPOST_IRQ attribute for VFIO irq, which
can be used to change back to remapping mode.
* Fix typo
v2:
* Use VFIO framework to enable this feature, the VFIO part of this series is
base on Eric's patch "[PATCH v3 0/8] KVM-VFIO IRQ forward control"
* Rebase this patchset on git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git,
then revise some irq logic based on the new hierarchy irqdomain patches provided
by Jiang Liu <jiang.liu@linux.intel.com>
*** BLURB HERE ***
Alex Williamson (1):
virt: IRQ bypass manager
Eric Auger (4):
KVM: arm/arm64: select IRQ_BYPASS_MANAGER
KVM: create kvm_irqfd.h
KVM: introduce kvm_arch functions for IRQ bypass
KVM: eventfd: add irq bypass consumer management
Feng Wu (13):
KVM: x86: select IRQ_BYPASS_MANAGER
KVM: Extend struct pi_desc for VT-d Posted-Interrupts
KVM: Add some helper functions for Posted-Interrupts
KVM: Define a new interface kvm_intr_is_single_vcpu()
KVM: Make struct kvm_irq_routing_table accessible
KVM: make kvm_set_msi_irq() public
vfio: Register/unregister irq_bypass_producer
KVM: x86: Update IRTE for posted-interrupts
KVM: Implement IRQ bypass consumer callbacks for x86
KVM: Add an arch specific hooks in 'struct kvm_kernel_irqfd'
KVM: Update Posted-Interrupts Descriptor when vCPU is preempted
KVM: Update Posted-Interrupts Descriptor when vCPU is blocked
iommu/vt-d: Add a command line parameter for VT-d posted-interrupts
Documentation/kernel-parameters.txt | 1 +
Documentation/virtual/kvm/locking.txt | 12 ++
MAINTAINERS | 7 +
arch/arm/kvm/Kconfig | 2 +
arch/arm/kvm/Makefile | 1 +
arch/arm64/kvm/Kconfig | 2 +
arch/arm64/kvm/Makefile | 1 +
arch/x86/include/asm/kvm_host.h | 24 +++
arch/x86/kvm/Kconfig | 3 +
arch/x86/kvm/Makefile | 3 +
arch/x86/kvm/irq_comm.c | 32 ++-
arch/x86/kvm/lapic.c | 59 ++++++
arch/x86/kvm/lapic.h | 2 +
arch/x86/kvm/trace.h | 33 ++++
arch/x86/kvm/vmx.c | 361 +++++++++++++++++++++++++++++++++-
arch/x86/kvm/x86.c | 108 +++++++++-
drivers/iommu/irq_remapping.c | 12 +-
drivers/vfio/pci/Kconfig | 1 +
drivers/vfio/pci/vfio_pci_intrs.c | 9 +
drivers/vfio/pci/vfio_pci_private.h | 2 +
include/linux/irqbypass.h | 90 +++++++++
include/linux/kvm_host.h | 29 +++
include/linux/kvm_irqfd.h | 71 +++++++
virt/kvm/Kconfig | 3 +
virt/kvm/eventfd.c | 142 +++++++------
virt/kvm/irqchip.c | 10 -
virt/kvm/kvm_main.c | 3 +
virt/lib/Kconfig | 2 +
virt/lib/Makefile | 1 +
virt/lib/irqbypass.c | 257 ++++++++++++++++++++++++
30 files changed, 1182 insertions(+), 101 deletions(-)
create mode 100644 include/linux/irqbypass.h
create mode 100644 include/linux/kvm_irqfd.h
create mode 100644 virt/lib/Kconfig
create mode 100644 virt/lib/Makefile
create mode 100644 virt/lib/irqbypass.c
--
2.1.0
next reply other threads:[~2015-09-18 14:43 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-18 14:29 Feng Wu [this message]
2015-09-18 14:29 ` [PATCH v9 01/18] virt: IRQ bypass manager Feng Wu
2015-09-18 15:34 ` Wu, Feng
2015-09-18 14:29 ` [PATCH v9 02/18] KVM: x86: select IRQ_BYPASS_MANAGER Feng Wu
2015-09-18 14:29 ` [PATCH v9 03/18] KVM: arm/arm64: " Feng Wu
2015-09-21 19:32 ` Eric Auger
2015-09-18 14:29 ` [PATCH v9 04/18] KVM: create kvm_irqfd.h Feng Wu
2015-09-18 15:35 ` Wu, Feng
2015-09-18 14:29 ` [PATCH v9 05/18] KVM: introduce kvm_arch functions for IRQ bypass Feng Wu
2015-09-18 14:29 ` [PATCH v9 06/18] KVM: eventfd: add irq bypass consumer management Feng Wu
2015-09-18 14:29 ` [PATCH v9 07/18] KVM: Extend struct pi_desc for VT-d Posted-Interrupts Feng Wu
2015-09-18 14:29 ` [PATCH v9 08/18] KVM: Add some helper functions for Posted-Interrupts Feng Wu
2015-09-18 14:29 ` [PATCH v9 09/18] KVM: Define a new interface kvm_intr_is_single_vcpu() Feng Wu
2015-09-18 14:29 ` [PATCH v9 10/18] KVM: Make struct kvm_irq_routing_table accessible Feng Wu
2015-09-18 14:29 ` [PATCH v9 11/18] KVM: make kvm_set_msi_irq() public Feng Wu
2015-09-18 14:29 ` [PATCH v9 12/18] vfio: Register/unregister irq_bypass_producer Feng Wu
2015-09-18 17:19 ` Alex Williamson
2015-09-21 8:56 ` Wu, Feng
2015-09-21 9:32 ` Paolo Bonzini
2015-09-21 11:35 ` Wu, Feng
2015-09-21 12:06 ` Paolo Bonzini
2015-09-21 12:08 ` Wu, Feng
2015-09-21 12:53 ` Wu, Feng
2015-09-21 13:02 ` Paolo Bonzini
2015-09-21 19:46 ` Eric Auger
2016-04-26 20:08 ` Alex Williamson
2016-04-27 1:32 ` Wu, Feng
2016-04-28 16:40 ` Alex Williamson
2016-04-28 15:35 ` Eric Auger
2015-09-18 14:29 ` [PATCH v9 13/18] KVM: x86: Update IRTE for posted-interrupts Feng Wu
2015-09-18 14:29 ` [PATCH v9 14/18] KVM: Implement IRQ bypass consumer callbacks for x86 Feng Wu
2015-09-18 14:29 ` [PATCH v9 15/18] KVM: Add an arch specific hooks in 'struct kvm_kernel_irqfd' Feng Wu
2015-09-18 14:29 ` [PATCH v9 16/18] KVM: Update Posted-Interrupts Descriptor when vCPU is preempted Feng Wu
2015-09-18 14:29 ` [PATCH v9 17/18] KVM: Update Posted-Interrupts Descriptor when vCPU is blocked Feng Wu
2015-09-18 16:06 ` Paolo Bonzini
2015-09-19 7:11 ` Wu, Feng
2015-09-21 2:16 ` Wu, Feng
2015-09-21 5:32 ` Paolo Bonzini
2015-09-21 5:45 ` Wu, Feng
2015-10-14 23:41 ` David Matlack
2015-10-15 1:33 ` Wu, Feng
2015-10-15 17:39 ` David Matlack
2015-10-15 18:13 ` Paolo Bonzini
2015-10-16 1:45 ` Wu, Feng
2015-09-18 14:29 ` [PATCH v9 18/18] iommu/vt-d: Add a command line parameter for VT-d posted-interrupts Feng Wu
2015-09-21 13:46 ` Joerg Roedel
2015-09-18 14:58 ` [PATCH v9 00/18] Add VT-d Posted-Interrupts support - including prerequisite series Paolo Bonzini
2015-09-18 15:08 ` Wu, Feng
2015-09-18 15:21 ` Paolo Bonzini
2015-09-18 15:38 ` Wu, Feng
2015-09-18 17:57 ` Alex Williamson
2015-09-25 1:49 ` Wu, Feng
2015-09-25 11:14 ` Paolo Bonzini
2015-09-28 10:14 ` Wu, Feng
2015-09-28 10:18 ` Paolo Bonzini
2015-09-28 10:22 ` Wu, Feng
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