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| author | Andre Przywara <andre.przywara@arm.com> | 2014-06-07 02:54:51 +0400 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2015-01-20 20:25:31 +0300 |
| commit | a0675c25d6392c2197b796a60c4a2a0138c86355 (patch) | |
| tree | 123679ec2053ab33bc40f9c67b9489c9508ca313 /include/kvm | |
| parent | 9fedf146778e6d1c26319ebaf56131a4f3a6be03 (diff) | |
| download | linux-a0675c25d6392c2197b796a60c4a2a0138c86355.tar.xz | |
arm/arm64: KVM: add virtual GICv3 distributor emulation
With everything separated and prepared, we implement a model of a
GICv3 distributor and redistributors by using the existing framework
to provide handler functions for each register group.
Currently we limit the emulation to a model enforcing a single
security state, with SRE==1 (forcing system register access) and
ARE==1 (allowing more than 8 VCPUs).
We share some of the functions provided for GICv2 emulation, but take
the different ways of addressing (v)CPUs into account.
Save and restore is currently not implemented.
Similar to the split-off of the GICv2 specific code, the new emulation
code goes into a new file (vgic-v3-emul.c).
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'include/kvm')
| -rw-r--r-- | include/kvm/arm_vgic.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h index ff04afd0d901..98c30168bce4 100644 --- a/include/kvm/arm_vgic.h +++ b/include/kvm/arm_vgic.h @@ -162,7 +162,11 @@ struct vgic_dist { /* Distributor and vcpu interface mapping in the guest */ phys_addr_t vgic_dist_base; - phys_addr_t vgic_cpu_base; + /* GICv2 and GICv3 use different mapped register blocks */ + union { + phys_addr_t vgic_cpu_base; + phys_addr_t vgic_redist_base; + }; /* Distributor enabled */ u32 enabled; @@ -224,6 +228,9 @@ struct vgic_dist { */ struct vgic_bitmap *irq_spi_target; + /* Target MPIDR for each IRQ (needed for GICv3 IROUTERn) only */ + u32 *irq_spi_mpidr; + /* Bitmap indicating which CPU has something pending */ unsigned long *irq_pending_on_cpu; |