Import defines, and steal enough helper functions, from Linux to
enable programming of the gic (v2 and v3). Then use the framework
to add an initial test (an ipi test; self, target-list, broadcast).
It's my hope that this framework will be a suitable base on which
more tests may be easily added, particularly because we have
vgic-new and tcg gicv3 emulation getting close to merge.
To run it, along with other tests, just do
./configure [ --arch=[arm|arm64] --cross-prefix=$PREFIX ]
make
export QEMU=$PATH_TO_QEMU
./run_tests.sh
To run it separately do, e.g.
$QEMU -machine virt,accel=tcg -cpu cortex-a57 \
-device virtio-serial-device \
-device virtconsole,chardev=ctd -chardev testdev,id=ctd \
-display none -serial stdio \
-kernel arm/gic.flat \
-smp 123 -machine gic-version=3 -append ipi
^^ note, we can go nuts with nr-cpus on TCG :-)
Or, a KVM example using a different "sender" cpu and irq (other than zero)
$QEMU -machine virt,accel=kvm -cpu host \
-device virtio-serial-device \
-device virtconsole,chardev=ctd -chardev testdev,id=ctd \
-display none -serial stdio \
-kernel arm/gic.flat \
-smp 48 -machine gic-version=3 -append 'ipi sender=42 irq=1'
Patches:
01-05: fixes and functionality needed by the later gic patches
06-07: code theft from Linux (defines, helper functions)
08-10: arm/gic.flat (the base of the gic unit test), currently just IPI
Available here: https://github.com/rhdrjones/kvm-unit-tests/commits/arm/gic
Andrew Jones (10):
lib: xstr: allow multiple args
arm64: fix get_"sysreg32" and make MPIDR 64bit
arm/arm64: smp: support more than 8 cpus
arm/arm64: add some delay routines
arm/arm64: irq enable/disable
arm/arm64: add initial gicv2 support
arm64: add initial gicv3 support
arm/arm64: gicv2: add an IPI test
arm/arm64: gicv3: add an IPI test
arm/arm64: gic: don't just use zero
arm/Makefile.common | 7 +-
arm/gic.c | 338 +++++++++++++++++++++++++++++++++++++++++++++
arm/run | 19 ++-
arm/selftest.c | 5 +-
arm/unittests.cfg | 13 ++
lib/arm/asm/arch_gicv3.h | 184 ++++++++++++++++++++++++
lib/arm/asm/gic-v2.h | 74 ++++++++++
lib/arm/asm/gic-v3.h | 320 ++++++++++++++++++++++++++++++++++++++++++
lib/arm/asm/gic.h | 21 +++
lib/arm/asm/processor.h | 38 ++++-
lib/arm/asm/setup.h | 4 +-
lib/arm/gic.c | 127 +++++++++++++++++
lib/arm/processor.c | 15 ++
lib/arm/setup.c | 12 +-
lib/arm64/asm/arch_gicv3.h | 169 +++++++++++++++++++++++
lib/arm64/asm/gic-v2.h | 1 +
lib/arm64/asm/gic-v3.h | 1 +
lib/arm64/asm/gic.h | 1 +
lib/arm64/asm/processor.h | 53 +++++--
lib/arm64/asm/sysreg.h | 44 ++++++
lib/arm64/processor.c | 15 ++
lib/libcflat.h | 4 +-
22 files changed, 1439 insertions(+), 26 deletions(-)
create mode 100644 arm/gic.c
create mode 100644 lib/arm/asm/arch_gicv3.h
create mode 100644 lib/arm/asm/gic-v2.h
create mode 100644 lib/arm/asm/gic-v3.h
create mode 100644 lib/arm/asm/gic.h
create mode 100644 lib/arm/gic.c
create mode 100644 lib/arm64/asm/arch_gicv3.h
create mode 100644 lib/arm64/asm/gic-v2.h
create mode 100644 lib/arm64/asm/gic-v3.h
create mode 100644 lib/arm64/asm/gic.h
create mode 100644 lib/arm64/asm/sysreg.h
--
2.4.11
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