> -----Original Message----- > From: Eric Auger [mailto:eric.auger@xxxxxxxxxx] > Sent: Monday, July 13, 2015 9:19 PM > To: Wu, Feng; kvm@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx > Cc: pbonzini@xxxxxxxxxx; alex.williamson@xxxxxxxxxx; joro@xxxxxxxxxx > Subject: Re: [v5 00/19] Add VT-d Posted-Interrupts support > > Hi Feng, > On 07/13/2015 11:47 AM, Feng Wu wrote: > > 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-technolog > y/vt-directed-io-spec.html > > > > This series was part of > http://thread.gmane.org/gmane.linux.kernel.iommu/7708. To make things > clear, send out IOMMU part here. > > > > This patch-set is based on the lastest x86/apic branch of tip tree. > > > > Divide the whole series which contain multiple components into three parts: > > - Prerequisite changes to irq subsystem (already merged) > > - IOMMU part (already merged) > > - KVM and VFIO parts (this series) > > > > v5: > > - Based on Alex and Eric's irq bypass manager: > > https://lkml.org/lkml/2015/7/10/663 > > - Reuse some common patch from Eric > > A comment about the overall structure. Previously you prefered to have 2 > separate series, one usable by both of us and one with my forwarding > stuff. Why did you change your mind? I didn't change my mind, since alex sent out the latest irq bypass manger patch, in which, some callbacks are renamed and some are changed to optional, I feel there may need some changes to your patch below: [RFC v2 0/6] IRQ bypass manager and irqfd consumer So I integrate it here, sorry for the inconvenience. Could you please send Out a new version of this patch-set, then I can follow it. Thanks a lot! Thanks, Feng > > Best Regards > > Eric > > > > Eric Auger (3): > > KVM: create kvm_irqfd.h > > KVM: eventfd: add irq bypass information in irqfd > > KVM: eventfd: add irq bypass consumer management > > > > Feng Wu (16): > > 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: Get Posted-Interrupts descriptor address from struct kvm_vcpu > > KVM: Add interfaces to control PI outside vmx > > KVM: Make struct kvm_irq_routing_table accessible > > KVM: make kvm_set_msi_irq() public > > vfio: Select IRQ_BYPASS_MANAGER for vfio PCI devices > > vfio: Register/unregister irq_bypass_producer > > KVM, x86: Select IRQ_BYPASS_MANAGER for KVM_INTEL > > KVM: x86: Update IRTE for posted-interrupts > > KVM: x86: Add arch specific routines for irqbypass manager > > 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 > > KVM: Warn if 'SN' is set during posting interrupts by software > > > > arch/x86/include/asm/kvm_host.h | 15 ++ > > arch/x86/kvm/Kconfig | 1 + > > arch/x86/kvm/irq_comm.c | 28 +++- > > arch/x86/kvm/vmx.c | 278 > +++++++++++++++++++++++++++++++++++- > > arch/x86/kvm/x86.c | 160 +++++++++++++++++++-- > > drivers/vfio/pci/Kconfig | 1 + > > drivers/vfio/pci/vfio_pci_intrs.c | 19 +++ > > drivers/vfio/pci/vfio_pci_private.h | 2 + > > include/linux/kvm_host.h | 23 +++ > > include/linux/kvm_irqfd.h | 74 ++++++++++ > > virt/kvm/eventfd.c | 115 ++++++--------- > > virt/kvm/irqchip.c | 11 -- > > virt/kvm/kvm_main.c | 3 + > > 13 files changed, 632 insertions(+), 98 deletions(-) > > create mode 100644 include/linux/kvm_irqfd.h > > -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
