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| author | Christoffer Dall <christoffer.dall@linaro.org> | 2017-01-17 23:09:13 +0100 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2017-01-25 13:50:03 +0100 |
| commit | 10f92c4c537794f4e2b5f545a8953790c5445d0f (patch) | |
| tree | 1cb2edb34246edf8a5047f2721608cb2ca48e812 /include/kvm | |
| parent | 8694e4da66a636665f51b94a6a7a40c9fc0dc5ec (diff) | |
| download | linux-10f92c4c537794f4e2b5f545a8953790c5445d0f.tar.gz linux-10f92c4c537794f4e2b5f545a8953790c5445d0f.tar.bz2 linux-10f92c4c537794f4e2b5f545a8953790c5445d0f.zip | |
KVM: arm/arm64: vgic: Add debugfs vgic-state file
Add a file to debugfs to read the in-kernel state of the vgic. We don't
do any locking of the entire VGIC state while traversing all the IRQs,
so if the VM is running the user/developer may not see a quiesced state,
but should take care to pause the VM using facilities in user space for
that purpose.
We also don't support LPIs yet, but they can be added easily if needed.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'include/kvm')
| -rw-r--r-- | include/kvm/arm_vgic.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h index da2ce086ce31..0af1477cfe8d 100644 --- a/include/kvm/arm_vgic.h +++ b/include/kvm/arm_vgic.h @@ -166,6 +166,8 @@ struct vgic_its { struct list_head collection_list; }; +struct vgic_state_iter; + struct vgic_dist { bool in_kernel; bool ready; @@ -213,6 +215,9 @@ struct vgic_dist { spinlock_t lpi_list_lock; struct list_head lpi_list_head; int lpi_list_count; + + /* used by vgic-debug */ + struct vgic_state_iter *iter; }; struct vgic_v2_cpu_if { |