On 27/01/15 07:03, Pranavkumar Sawargaonkar wrote:
> In APM X-Gene, GIC register space is 64K aligned while the sizes mentioned
> in the dt are 4K aligned. This breaks KVM when kernel is built with 64K page
> size due to size alignment checking in vgic driver for VCPU Control and
> VCPU register.
>
> This patch corrects the sizes to be inline with the hardware spec.
This patch may be correct, but it is useless. The firmware on my APM
system (some version of u-boot) repaints the DT at boot time, negating
the effect of this patch.
Another system I can remove from my 64k-capable list.
M.
> CC: linux-arm-ker...@lists.infradead.org
> CC: kvmarm@lists.cs.columbia.edu
> CC: a...@arndb.de
> CC: marc.zyng...@arm.com
> CC: christoffer.d...@linaro.org
> CC: j...@redhat.com
> Signed-off-by: Pranavkumar Sawargaonkar <psawargaon...@apm.com>
> Signed-off-by: Tushar Jagad <tja...@apm.com>
> Signed-off-by: Feng Kan <f...@apm.com>
> ---
> arch/arm64/boot/dts/apm/apm-storm.dtsi | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi
> b/arch/arm64/boot/dts/apm/apm-storm.dtsi
> index f1ad9c2..65f0e6d 100644
> --- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
> +++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
> @@ -81,10 +81,10 @@
> compatible = "arm,cortex-a15-gic";
> #interrupt-cells = <3>;
> interrupt-controller;
> - reg = <0x0 0x78010000 0x0 0x1000>, /* GIC Dist */
> - <0x0 0x78020000 0x0 0x1000>, /* GIC CPU */
> - <0x0 0x78040000 0x0 0x2000>, /* GIC VCPU Control */
> - <0x0 0x78060000 0x0 0x2000>; /* GIC VCPU */
> + reg = <0x0 0x78010000 0x0 0x10000>, /* GIC Dist */
> + <0x0 0x78020000 0x0 0x20000>, /* GIC CPU */
> + <0x0 0x78040000 0x0 0x10000>, /* GIC VCPU Control */
> + <0x0 0x78060000 0x0 0x20000>; /* GIC VCPU */
> interrupts = <1 9 0xf04>; /* GIC Maintenence IRQ */
> };
>
> --
> 1.7.9.5
>
>
--
Jazz is not dead. It just smells funny...
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