Hi Joerg, Any comments about this new version? Thanks a lot!
Thanks, Feng > -----Original Message----- > From: Wu, Feng > Sent: Wednesday, May 27, 2015 12:06 PM > To: j...@8bytes.org; dw...@infradead.org > Cc: t...@linutronix.de; jiang....@linux.intel.com; > io...@lists.linux-foundation.org; linux-kernel@vger.kernel.org; Wu, Feng > Subject: [v8 0/9] Add VT-d Posted-Interrupts support - IOMMU part > > 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 in tip tree x86/apic > branch) > - IOMMU part (in this series) > - KVM and VFIO parts (will send out this part once the first two parts are > accepted) > > v7->v8: > * Save the irq mode (posted or remapped) of an IRTE in struct irq_2_iommu. > * Use this new mode to decide whether update the hardware when > modifying irte in intel_ir_set_affinity(). > > v6->v7: > * Add an static inline helper function set_irq_posting_cap() to set > the PI capability. > * Add some comments for the new member "ir_data->irte_pi_entry". > > v5->v6: > * Extend 'struct irte' for VT-d Posted-Interrupts, combine remapped > and posted mode into one irte structure. > > v4->v5: > * Abstract modify_irte() to accept two format of irte. > > v3->v4: > * Change capability to a int variant flags instead of a function call. > * Add hotplug case for VT-d PI. > > Feng Wu (8): > iommu: Add new member capability to struct irq_remap_ops > iommu, x86: Implement irq_set_vcpu_affinity for intel_ir_chip > iommu, x86: Save the mode (posted or remapped) of an IRTE > iommu, x86: No need to migrating irq for VT-d Posted-Interrupts > iommu, x86: Add cap_pi_support() to detect VT-d PI capability > iommu, x86: Setup Posted-Interrupts capability for Intel iommu > iommu, x86: define irq_remapping_cap() > iommu, x86: Properly handler PI for IOMMU hotplug > > Thomas Gleixner (1): > iommu: dmar: Extend struct irte for VT-d Posted-Interrupts > > arch/x86/include/asm/irq_remapping.h | 11 +++++ > drivers/iommu/intel_irq_remapping.c | 93 > +++++++++++++++++++++++++++++++++++- > drivers/iommu/irq_remapping.c | 11 +++++ > drivers/iommu/irq_remapping.h | 6 +++ > include/linux/dmar.h | 70 +++++++++++++++++++++------ > include/linux/intel-iommu.h | 1 + > 6 files changed, 176 insertions(+), 16 deletions(-) > > -- > 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
