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| author | Marc Zyngier <marc.zyngier@arm.com> | 2016-02-09 17:37:39 +0000 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2016-03-09 04:24:03 +0000 |
| commit | 667a87a928c9e1939b1a518be0d62b24378c1fe8 (patch) | |
| tree | 9b17459c7a7bb8c26329381a32aa6088937a248c /virt | |
| parent | cc1daf0b82f12040065bb1a77dd7945b9ef821f8 (diff) | |
| download | linux-stable-667a87a928c9e1939b1a518be0d62b24378c1fe8.tar.gz linux-stable-667a87a928c9e1939b1a518be0d62b24378c1fe8.tar.bz2 linux-stable-667a87a928c9e1939b1a518be0d62b24378c1fe8.zip | |
KVM: arm/arm64: vgic-v2: Make GICD_SGIR quicker to hit
The GICD_SGIR register lives a long way from the beginning of
the handler array, which is searched linearly. As this is hit
pretty often, let's move it up. This saves us some precious
cycles when the guest is generating IPIs.
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/arm/vgic-v2-emul.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/virt/kvm/arm/vgic-v2-emul.c b/virt/kvm/arm/vgic-v2-emul.c index 13907970d11c..1b0bee095427 100644 --- a/virt/kvm/arm/vgic-v2-emul.c +++ b/virt/kvm/arm/vgic-v2-emul.c @@ -321,6 +321,11 @@ static bool handle_mmio_sgi_clear(struct kvm_vcpu *vcpu, static const struct vgic_io_range vgic_dist_ranges[] = { { + .base = GIC_DIST_SOFTINT, + .len = 4, + .handle_mmio = handle_mmio_sgi_reg, + }, + { .base = GIC_DIST_CTRL, .len = 12, .bits_per_irq = 0, @@ -387,11 +392,6 @@ static const struct vgic_io_range vgic_dist_ranges[] = { .handle_mmio = handle_mmio_cfg_reg, }, { - .base = GIC_DIST_SOFTINT, - .len = 4, - .handle_mmio = handle_mmio_sgi_reg, - }, - { .base = GIC_DIST_SGI_PENDING_CLEAR, .len = VGIC_NR_SGIS, .handle_mmio = handle_mmio_sgi_clear, |