diff options
| author | Eric Auger <eric.auger@redhat.com> | 2019-10-03 17:46:39 +0200 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2019-10-15 18:09:02 +0100 |
| commit | f6530926e2310147a7844a3e663230d47b3d7333 (patch) | |
| tree | 72d1cedab2f00fff2f123803499c2b72ede04745 /hw/dma | |
| parent | f363d039e883ce6eb2a4fd09b04a38cbb6c95d43 (diff) | |
intc/arm_gic: Support IRQ injection for more than 256 vpus
Host kernels that expose the KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 capability
allow injection of interrupts along with vcpu ids larger than 255.
Let's encode the vpcu id on 12 bits according to the upgraded KVM_IRQ_LINE
ABI when needed.
Given that we have two callsites that need to assemble
the value for kvm_set_irq(), a new helper routine, kvm_arm_set_irq
is introduced.
Without that patch qemu exits with "kvm_set_irq: Invalid argument"
message.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Message-id: 20191003154640.22451-3-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/dma')
0 files changed, 0 insertions, 0 deletions