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authorEric Auger <eric.auger@redhat.com>2019-08-23 20:33:30 +0300
committerMarc Zyngier <maz@kernel.org>2019-08-25 13:02:52 +0300
commit3109741a8d773b91eec4a1f7764c97a1176ec32d (patch)
treeeaf4b6f30e5d5d290bf2b4ad51d52263c549b3b2 /include/kvm
parent926c61568d0b2e57254e92290369d4539568f8cc (diff)
downloadlinux-3109741a8d773b91eec4a1f7764c97a1176ec32d.tar.xz
KVM: arm/arm64: vgic: Use a single IO device per redistributor
At the moment we use 2 IO devices per GICv3 redistributor: one one for the RD_base frame and one for the SGI_base frame. Instead we can use a single IO device per redistributor (the 2 frames are contiguous). This saves slots on the KVM_MMIO_BUS which is currently limited to NR_IOBUS_DEVS (1000). This change allows to instantiate up to 512 redistributors and may speed the guest boot with a large number of VCPUs. Signed-off-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'include/kvm')
-rw-r--r--include/kvm/arm_vgic.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index ded50a30e2d5..af4f09c02bf1 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -314,7 +314,6 @@ struct vgic_cpu {
* parts of the redistributor.
*/
struct vgic_io_device rd_iodev;
- struct vgic_io_device sgi_iodev;
struct vgic_redist_region *rdreg;
/* Contains the attributes and gpa of the LPI pending tables. */