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| author | Shenming Lu <lushenming@huawei.com> | 2021-03-22 09:01:58 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-03-24 21:12:21 +0300 |
| commit | 8082d50f4817ff6a7e08f4b7e9b18e5f8bfa290d (patch) | |
| tree | 64e6c248e66806893054251eb754a2e75e4e0558 /Documentation/virt | |
| parent | 12df7429213abbfa9632ab7db94f629ec309a58b (diff) | |
| download | linux-8082d50f4817ff6a7e08f4b7e9b18e5f8bfa290d.tar.xz | |
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
Diffstat (limited to 'Documentation/virt')
| -rw-r--r-- | Documentation/virt/kvm/devices/arm-vgic-its.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/virt/kvm/devices/arm-vgic-its.rst b/Documentation/virt/kvm/devices/arm-vgic-its.rst index 6c304fd2b1b4..d257eddbae29 100644 --- a/Documentation/virt/kvm/devices/arm-vgic-its.rst +++ b/Documentation/virt/kvm/devices/arm-vgic-its.rst @@ -80,7 +80,7 @@ KVM_DEV_ARM_VGIC_GRP_CTRL -EFAULT Invalid guest ram access -EBUSY One or more VCPUS are running -EACCES The virtual ITS is backed by a physical GICv4 ITS, and the - state is not available + state is not available without GICv4.1 ======= ========================================================== KVM_DEV_ARM_VGIC_GRP_ITS_REGS |