diff options
| author | Sascha Bischoff <Sascha.Bischoff@arm.com> | 2026-09-04 11:38:20 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2026-09-14 10:49:07 +0100 |
| commit | b3a40e812322daaca26d40fde681dc3079b4f3b4 (patch) | |
| tree | be52f0206d10058d27bcdf31ab355e81483b8201 /tools/perf/scripts/python | |
| parent | 896b6a10253c104eeb6a2bd98be297a7b51f6600 (diff) | |
KVM: arm64: gic-v5: Add VPE doorbell domain
VPE doorbells allow the GICv5 hardware to notify KVM when an SPI or
LPI can be signalled to a non-resident VPE. This provides the
mechanism used to wake blocked vcpus once the hardware determines that
the interrupt is eligible to be delivered.
Add support for a per-VM VPE doorbell irq domain. The domain is
created under the GICv5 LPI domain, with one doorbell allocated per
VPE. Store the allocated doorbell base in the VM's GICv5 state so that
later patches can request per-vcpu doorbell IRQs and use them for IRS
commands and wakeups.
Add the per-VPE doorbell state to the GICv5 CPU interface state. The
doorbell IRQ number is populated when the IRQs are requested, and the
db_fired state is used by later patches once doorbell delivery is
wired up.
Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
Link: https://patch.msgid.link/20260904113404.4051341-9-sascha.bischoff@arm.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions