lkml.org 
[lkml]   [2014]   [Nov]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH 00/13] Add VT-d Posted-Interrupts support for KVM
Date
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

Feng Wu (13):
iommu/vt-d: VT-d Posted-Interrupts feature detection
KVM: Initialize VT-d Posted-Interrtups Descriptor
KVM: Add KVM_CAP_PI to detect VT-d Posted-Interrtups
iommu/vt-d: Adjust 'struct irte' to better suit for VT-d
Posted-Interrupts
KVM: Update IRTE according to guest interrupt configuration changes
KVM: Add some helper functions for Posted-Interrupts
x86, irq: Define a global vector for VT-d Posted-Interrupts
KVM: Update Posted-Interrupts descriptor during VCPU scheduling
KVM: Change NDST field after VCPU scheduling
KVM: Add the handler for Wake-up Vector
KVM: Suppress posted-interrupt when 'SN' is set
iommu/vt-d: No need to migrating irq for VT-d Posted-Interrtups
iommu/vt-d: Add a command line parameter for VT-d posted-interrupts

arch/x86/include/asm/entry_arch.h | 2 +
arch/x86/include/asm/hardirq.h | 1 +
arch/x86/include/asm/hw_irq.h | 2 +
arch/x86/include/asm/irq_remapping.h | 7 +
arch/x86/include/asm/irq_vectors.h | 1 +
arch/x86/include/asm/kvm_host.h | 9 ++
arch/x86/kernel/apic/apic.c | 1 +
arch/x86/kernel/entry_64.S | 2 +
arch/x86/kernel/irq.c | 27 ++++
arch/x86/kernel/irqinit.c | 2 +
arch/x86/kvm/vmx.c | 257 +++++++++++++++++++++++++++++++++-
arch/x86/kvm/x86.c | 53 ++++++-
drivers/iommu/amd_iommu.c | 6 +
drivers/iommu/intel_irq_remapping.c | 83 +++++++++--
drivers/iommu/irq_remapping.c | 20 +++
drivers/iommu/irq_remapping.h | 8 +
include/linux/dmar.h | 30 ++++-
include/linux/intel-iommu.h | 1 +
include/linux/kvm_host.h | 25 ++++
include/uapi/linux/kvm.h | 2 +
virt/kvm/assigned-dev.c | 141 +++++++++++++++++++
virt/kvm/irq_comm.c | 4 +-
virt/kvm/irqchip.c | 11 --
virt/kvm/kvm_main.c | 14 ++
24 files changed, 667 insertions(+), 42 deletions(-)



\
 
 \ /
  Last update: 2014-11-10 08:21    [W:0.136 / U:15.016 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site