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| author | Oliver Upton <oliver.upton@linux.dev> | 2023-10-30 20:19:13 +0000 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2023-10-30 20:19:13 +0000 |
| commit | 54b44ad26c4296f341a26456ef121d2fd2ac0c59 (patch) | |
| tree | 678c44021c60f912c594d4a6457a626eb866327e /Documentation/virt/kvm/devices/arm-vgic-v3.rst | |
| parent | df26b77915be7813a0ca06ddd06f04fb4e13e471 (diff) | |
| parent | f9940416f193d148dd7ad7498ce4f40c83d12e7a (diff) | |
Merge branch kvm-arm64/sgi-injection into kvmarm/next
* kvm-arm64/sgi-injection:
: vSGI injection improvements + fixes, courtesy Marc Zyngier
:
: Avoid linearly searching for vSGI targets using a compressed MPIDR to
: index a cache. While at it, fix some egregious bugs in KVM's mishandling
: of vcpuid (user-controlled value) and vcpu_idx.
KVM: arm64: Clarify the ordering requirements for vcpu/RD creation
KVM: arm64: vgic-v3: Optimize affinity-based SGI injection
KVM: arm64: Fast-track kvm_mpidr_to_vcpu() when mpidr_data is available
KVM: arm64: Build MPIDR to vcpu index cache at runtime
KVM: arm64: Simplify kvm_vcpu_get_mpidr_aff()
KVM: arm64: Use vcpu_idx for invalidation tracking
KVM: arm64: vgic: Use vcpu_idx for the debug information
KVM: arm64: vgic-v2: Use cpuid from userspace as vcpu_id
KVM: arm64: vgic-v3: Refactor GICv3 SGI generation
KVM: arm64: vgic-its: Treat the collection target address as a vcpu_id
KVM: arm64: vgic: Make kvm_vgic_inject_irq() take a vcpu pointer
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'Documentation/virt/kvm/devices/arm-vgic-v3.rst')
| -rw-r--r-- | Documentation/virt/kvm/devices/arm-vgic-v3.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/virt/kvm/devices/arm-vgic-v3.rst b/Documentation/virt/kvm/devices/arm-vgic-v3.rst index 51e5e5762571..5817edb4e046 100644 --- a/Documentation/virt/kvm/devices/arm-vgic-v3.rst +++ b/Documentation/virt/kvm/devices/arm-vgic-v3.rst @@ -59,6 +59,13 @@ Groups: It is invalid to mix calls with KVM_VGIC_V3_ADDR_TYPE_REDIST and KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION attributes. + Note that to obtain reproducible results (the same VCPU being associated + with the same redistributor across a save/restore operation), VCPU creation + order, redistributor region creation order as well as the respective + interleaves of VCPU and region creation MUST be preserved. Any change in + either ordering may result in a different vcpu_id/redistributor association, + resulting in a VM that will fail to run at restore time. + Errors: ======= ============================================================= |