This series is a revival of an RFC series sent in Dec 2016 [1]. Given the amount of code and the lack of traction at that time, I haven't respinned until now. However a recent bug found related to the ITS migration convinced me that this work may deserve to be respinned and enhanced. Tests exercise main ITS commands and also test migration. With the migration framework, we are able to trigger the migration from guest and that is very practical actually. What is particular with the ITS programming is that most of the commands are passed through queues and there is real error handling. Invalid commands are just ignored and that is not really tester friendly. This series includes Andre's patch: "arm: gic: Provide per-IRQ helper functions" [2] test_migrate_unmapped_collection is currently failing with upstream kernel. See [3]. The series can be fount at: https://github.com/eauger/kut/tree/its-v3 Best Regards Eric History: v2 -> v3: - fix 32b compilation - take into account Drew's comments (see individual diff logs) v1 -> v2: - took into account Zenghui's comments - collect R-b's from Thomas References: [1] [kvm-unit-tests RFC 00/15] arm/arm64: add ITS framework https://lists.gnu.org/archive/html/qemu-devel/2016-12/msg00575.html [2] [kvm-unit-tests PATCH 00/17] arm: gic: Test SPIs and interrupt groups https://patchwork.kernel.org/cover/11234975/ [3] [PATCH] KVM: arm/arm64: vgic-its: Fix restoration of unmapped collections (https://lkml.org/lkml/2019/12/13/205) Execution: x For ITS migration testing use: ./run_tests.sh -g migration (block on TCG) x For other ITS tests: ./run_tests.sh -g its x non migration tests can be launched invidually. For instance: ./arm-run arm/gic.flat -smp 8 -append 'its-trigger' Andre Przywara (1): arm: gic: Provide per-IRQ helper functions Eric Auger (13): libcflat: Add other size defines arm/arm64: gic: Introduce setup_irq() helper arm/arm64: gicv3: Add some re-distributor defines arm/arm64: ITS: Introspection tests arm/arm64: gicv3: Set the LPI config and pending tables arm/arm64: gicv3: Enable/Disable LPIs at re-distributor level arm/arm64: ITS: its_enable_defaults arm/arm64: ITS: Device and collection Initialization arm/arm64: ITS: commands arm/arm64: ITS: INT functional tests arm/run: Allow Migration tests arm/arm64: ITS: migration tests arm/arm64: ITS: pending table migration test arm/Makefile.arm64 | 1 + arm/Makefile.common | 2 +- arm/gic.c | 488 +++++++++++++++++++++++++++++++++++-- arm/run | 2 +- arm/unittests.cfg | 38 +++ lib/arm/asm/gic-v3-its.h | 167 +++++++++++++ lib/arm/asm/gic-v3.h | 25 ++ lib/arm/asm/gic.h | 8 + lib/arm/gic-v3-its-cmd.c | 454 ++++++++++++++++++++++++++++++++++ lib/arm/gic-v3-its.c | 243 ++++++++++++++++++ lib/arm/gic-v3.c | 81 ++++++ lib/arm/gic.c | 120 ++++++++- lib/arm/io.c | 28 +++ lib/arm64/asm/gic-v3-its.h | 1 + lib/libcflat.h | 3 + 15 files changed, 1633 insertions(+), 28 deletions(-) create mode 100644 lib/arm/asm/gic-v3-its.h create mode 100644 lib/arm/gic-v3-its-cmd.c create mode 100644 lib/arm/gic-v3-its.c create mode 100644 lib/arm64/asm/gic-v3-its.h -- 2.20.1
