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author | Andre Przywara | 2016-07-15 13:43:32 +0200 |
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committer | Marc Zyngier | 2016-07-18 19:14:36 +0200 |
commit | 424c33830f53f248a68da125e70d9a4d95a8e010 (patch) | |
tree | 9b975ccc2cb6083ce3ebe9ba865e6904dad595f7 /virt/kvm/arm/vgic/vgic-init.c | |
parent | KVM: arm64: vgic-its: Introduce new KVM ITS device (diff) | |
download | kernel-qcow2-linux-424c33830f53f248a68da125e70d9a4d95a8e010.tar.gz kernel-qcow2-linux-424c33830f53f248a68da125e70d9a4d95a8e010.tar.xz kernel-qcow2-linux-424c33830f53f248a68da125e70d9a4d95a8e010.zip |
KVM: arm64: vgic-its: Implement basic ITS register handlers
Add emulation for some basic MMIO registers used in the ITS emulation.
This includes:
- GITS_{CTLR,TYPER,IIDR}
- ID registers
- GITS_{CBASER,CREADR,CWRITER}
(which implement the ITS command buffer handling)
- GITS_BASER<n>
Most of the handlers are pretty straight forward, only the CWRITER
handler is a bit more involved by taking the new its_cmd mutex and
then iterating over the command buffer.
The registers holding base addresses and attributes are sanitised before
storing them.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'virt/kvm/arm/vgic/vgic-init.c')
0 files changed, 0 insertions, 0 deletions