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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v6 00/31] Add ITS support
From: Vijaya Kumar K <Vijaya.Kumar@xxxxxxxxxxxxxxxxxx> This is based on DraftG version http://xenbits.xen.org/people/ianc/vits/draftG.pdf Following major features are supported - GICv3 ITS support for arm64 platform - Only Dom0 is supported. For DomU pci passthrough feature is required. Patches shared @ https://github.com/vijaykilari/its_v6.git Changes in v6: - Rebased to latest staging branch. - Compiled all the patches individually for both arm32 and arm64 - Split the patch "xen/arm: ITS: Allocate irq descriptors for LPIs" into two. One for allocating LPI irq_desc and other patch for allocating pending_irq desc for LPIs - Following new patches are introduced 1) xen/arm: Rename NR_IRQs and vgic_num_irqs helper function 2) xen/arm: ITS: Introduce msi_desc for LPIs 3) xen/arm: Move vgic locking inside get_irq_priority callback 4) xen/arm: ITS: Store LPIs allocated and IRQ ID bits per domain 5) xen/arm: ITS: Introduce helper to get number of event IDs 6) xen/arm: ITS: Add virtual ITS availability check helper 7) xen/arm: ITS: Add 32-bit access to GICR_TYPER) 8) xen/arm: ITS: Allocate pending_lpi descriptors for LPIs - Based on below patch set http://lists.xen.org/archives/html/xen-devel/2015-08/msg00168.html Some Major TODOs: 1) Avoid making vits_process_cmd() static in later point of time 2) How to handle LPI that does not have LPI config table entry. 3) Enable/disable ITS to Dom0 Changes in v5: - Added following new patches 0001-xen-arm-Return-success-if-dt-node-does-not-have-irq-.patch 0004-xen-arm-Set-nr_cpu_ids-to-available-number-of-cpus.patch 0009-xen-arm-ITS-Export-ITS-info-to-Virtual-ITS.patch 0013-xen-arm-ITS-Implement-gic_is_lpi-helper-function.patch - Split patch #12 into two patches #14 & #16 0014-xen-arm-ITS-Allocate-irq-descriptors-for-LPIs.patch 0016-xen-arm-ITS-Route-LPIs.patch - Introduce new API to route LPI (route_lpi_to_guest() ) - Moved patch #8 in v4 as patch #19 - irq_descritors for LPIs are allocated dynamically - Removed RB-tree for managing vitual its devices. Will be introduced when pci-passthrough is implemented - its_add_device() api now takes nr_ites and DT its node as parameters - some function are kept as non-static when introduced in a patch for compilation purpose and eventually made static when used. - Tested compilation for arm32 Changes in v4: - Patch for rate limiting of error message is removed. - Patch #4 and #5 in v3 is merged - Merged #13 and #16 as one patch - hw_irq_controller is implemented for LPIs - GITS and GICR emulation for LPIs in separate patches - Removed build functions for ITS command in physical ITS driver - Added new patch to add and assign devices from platform file - Enable compilation of vits and pits driver in separate patch - Replace msi-parent property in all pci dt nodes to single ITS node generated by Xen for Dom0 Vijaya Kumar K (31): xen/dt: Handle correctly node with interrupt-map in dt_for_each_irq_map xen/arm: Add bitmap_find_next_zero_area helper function xen: Add log2 functionality xen/arm: Set nr_cpu_ids to available number of cpus xen/arm: Rename NR_IRQs and vgic_num_irqs helper function xen/arm: ITS: Port ITS driver to Xen xen/arm: ITS: Add helper functions to manage its_devices xen/arm: ITS: Introduce msi_desc for LPIs xen/arm: ITS: Add APIs to add and assign device xen/arm: ITS: Introduce gic_is_lpi helper function xen/arm: ITS: Enable compilation of physical ITS driver xen/arm: Move vgic locking inside get_irq_priority callback xen/arm: ITS: implement hw_irq_controller for LPIs xen/arm: ITS: Initialize physical ITS and export lpi support xen/arm: ITS: Add virtual ITS driver xen/arm: ITS: Add virtual ITS commands support xen/arm: ITS: Store LPIs allocated and IRQ ID bits per domain xen/arm: ITS: Enable virtual ITS driver xen/arm: ITS: Export ITS info to Virtual ITS xen/arm: ITS: Introduce helper to get number of event IDs xen/arm: ITS: Add GITS registers emulation xen/arm: ITS: Add virtual ITS availability check helper xen/arm: ITS: Add 32-bit access to GICR_TYPER xen/arm: ITS: Add GICR register emulation xen/arm: ITS: Allocate irq descriptors for LPIs xen/arm: ITS: Allocate pending_lpi descriptors for LPIs xen/arm: ITS: Route LPIs xen/arm: ITS: Add domain specific ITS initialization xen/arm: ITS: Map ITS translation space xen/arm: ITS: Generate ITS node for Dom0 xen/arm: ITS: Add pci devices in ThunderX xen/arch/arm/Makefile | 2 + xen/arch/arm/domain_build.c | 11 + xen/arch/arm/gic-hip04.c | 19 +- xen/arch/arm/gic-v2.c | 19 +- xen/arch/arm/gic-v3-its.c | 1594 +++++++++++++++++++++++++++++++++++++ xen/arch/arm/gic-v3.c | 102 ++- xen/arch/arm/gic.c | 73 +- xen/arch/arm/irq.c | 176 +++- xen/arch/arm/platforms/Makefile | 1 + xen/arch/arm/platforms/thunderx.c | 151 ++++ xen/arch/arm/setup.c | 2 + xen/arch/arm/vgic-v2.c | 9 +- xen/arch/arm/vgic-v3-its.c | 993 +++++++++++++++++++++++ xen/arch/arm/vgic-v3.c | 419 +++++++++- xen/arch/arm/vgic.c | 117 ++- xen/common/bitmap.c | 39 + xen/common/device_tree.c | 4 +- xen/include/asm-arm/domain.h | 11 + xen/include/asm-arm/gic-its.h | 387 +++++++++ xen/include/asm-arm/gic.h | 27 +- xen/include/asm-arm/gic_v3_defs.h | 51 +- xen/include/asm-arm/irq.h | 24 +- xen/include/asm-arm/vgic.h | 18 +- xen/include/xen/bitmap.h | 16 + xen/include/xen/lib.h | 2 + xen/include/xen/log2.h | 167 ++++ 26 files changed, 4357 insertions(+), 77 deletions(-) create mode 100644 xen/arch/arm/gic-v3-its.c create mode 100644 xen/arch/arm/platforms/thunderx.c create mode 100644 xen/arch/arm/vgic-v3-its.c create mode 100644 xen/include/asm-arm/gic-its.h create mode 100644 xen/include/xen/log2.h -- 1.7.9.5 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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