| Message ID | 20210323041238.133835-1-shashi.mallela@linaro.org |
|---|---|
| Headers | show |
| Series | GICv3 LPI and ITS feature implementation | expand |
Shashi Mallela <shashi.mallela@linaro.org> writes: > This patchset implements qemu device model for enabling physical > LPI support and ITS functionality in GIC as per GICv3 specification. > Both flat table and 2 level tables are implemented.The ITS commands > for adding/deleting ITS table entries,trigerring LPI interrupts are > implemented.Translated LPI interrupt ids are processed by redistributor > to determine priority and set pending state appropriately before > forwarding the same to cpu interface. > The ITS feature support has been added to sbsa-ref platform as well as > virt platform,wherein the emulated functionality co-exists with kvm > kernel functionality. Running the kvm-unit-tests ITS set: env QEMU=$HOME/lsrc/qemu.git/builds/arm.all/qemu-system-aarch64 ./run_tests.sh -g its with a patched unitests.cfg to remove the KVM requirement I get: PASS its-introspection (5 tests) FAIL its-trigger (6 tests, 1 unexpected failures) FAIL its-migration FAIL its-pending-migration (1 tests, 1 unexpected failures) SKIP its-migrate-unmapped-collection (1 tests, 1 skipped) The its-migration asserts: Now migrate the VM, then press a key to continue... INFO: gicv3: its-migration: Migration complete INT dev_id=2 event_id=20 /home/alex/lsrc/tests/kvm-unit-tests.git/lib/arm64/gic-v3-its-cmd.c:192: assert failed: false: INT timeout! STACK: Full logs attached: -- Alex Bennée
Shashi Mallela <shashi.mallela@linaro.org> writes: > This patchset implements qemu device model for enabling physical > LPI support and ITS functionality in GIC as per GICv3 specification. > Both flat table and 2 level tables are implemented.The ITS commands > for adding/deleting ITS table entries,trigerring LPI interrupts are > implemented.Translated LPI interrupt ids are processed by redistributor > to determine priority and set pending state appropriately before > forwarding the same to cpu interface. > The ITS feature support has been added to sbsa-ref platform as well as > virt platform,wherein the emulated functionality co-exists with kvm > kernel functionality. OK I've finished my first pass. I didn't want to keep repeating myself with the later patches. So in summary: - use REG/FIELD to avoid the manual mask definition/manipulation - define registers in the patch that first uses them - check LOG_UNIMP vs LOG_GUEST_ERROR (and possibly assert if it shouldn't happen) - and of course pass the kvm-unit-tests ITS tests ;-) Thanks, > > Shashi Mallela (8): > hw/intc: GICv3 ITS initial framework > hw/intc: GICv3 ITS register definitions added > hw/intc: GICv3 ITS command queue framework > hw/intc: GICv3 ITS Command processing > hw/intc: GICv3 ITS Feature enablement > hw/intc: GICv3 redistributor ITS processing > hw/arm/sbsa-ref: add ITS support in SBSA GIC > hw/arm/virt: add ITS support in virt GIC > > hw/arm/sbsa-ref.c | 26 +- > hw/arm/virt.c | 10 +- > hw/intc/arm_gicv3.c | 6 + > hw/intc/arm_gicv3_common.c | 16 + > hw/intc/arm_gicv3_cpuif.c | 15 +- > hw/intc/arm_gicv3_dist.c | 22 +- > hw/intc/arm_gicv3_its.c | 1417 ++++++++++++++++++++ > hw/intc/arm_gicv3_its_common.c | 17 +- > hw/intc/arm_gicv3_its_kvm.c | 2 +- > hw/intc/arm_gicv3_redist.c | 155 ++- > hw/intc/gicv3_internal.h | 176 ++- > hw/intc/meson.build | 1 + > include/hw/intc/arm_gicv3_common.h | 14 + > include/hw/intc/arm_gicv3_its_common.h | 12 +- > target/arm/kvm_arm.h | 4 +- > 15 files changed, 1869 insertions(+), 24 deletions(-) > create mode 100644 hw/intc/arm_gicv3_its.c -- Alex Bennée