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| /linux/Documentation/virt/kvm/devices/ |
| H A D | arm-vgic-its.rst | diff 8082d50f4817ff6a7e08f4b7e9b18e5f8bfa290d Mon Mar 22 07:01:58 CET 2021 Shenming Lu <lushenming@huawei.com> KVM: arm64: GICv4.1: Give a chance to save VLPI state
Before GICv4.1, we don't have direct access to the VLPI state. So
we simply let it fail early when encountering any VLPI in saving.
But now we don't have to return -EACCES directly if on GICv4.1. Let’s
change the hard code and give a chance to save the VLPI state (and
preserve the UAPI).
Signed-off-by: Shenming Lu <lushenming@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210322060158.1584-7-lushenming@huawei.com
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| /linux/arch/arm64/kvm/vgic/ |
| H A D | vgic-its.c | diff 8082d50f4817ff6a7e08f4b7e9b18e5f8bfa290d Mon Mar 22 07:01:58 CET 2021 Shenming Lu <lushenming@huawei.com> KVM: arm64: GICv4.1: Give a chance to save VLPI state
Before GICv4.1, we don't have direct access to the VLPI state. So
we simply let it fail early when encountering any VLPI in saving.
But now we don't have to return -EACCES directly if on GICv4.1. Let’s
change the hard code and give a chance to save the VLPI state (and
preserve the UAPI).
Signed-off-by: Shenming Lu <lushenming@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210322060158.1584-7-lushenming@huawei.com
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