13 Feb
2020
13 Feb
'20
9:18 p.m.
Hi Ben,
When configured as a hypervisor, seL4 uses the hardware interrupt
virtualization support of GICv2 (GIC-400) and GICv3 (GIC-500). More
work is needed for SoCs without such hardware support.
BTW, it looks like Raspberry Pi4 (bcm2711) has a GIC-400 controller.
Would you consider the new version?
Regards,
Yanyan
On Thu, 2020-02-13 at 09:15 +0000, Turner, Ben wrote:
Hi,
I have been attempting to add support for the Raspberry Pi 3 b
platform so that I can run the vm_minimal application on it. The
platform supports ARM_HYP, so I believe it should be possible to get
this working.
I have reached to point where ninja errors on an implicit declaration
for `set_gic_vcpu_ctrl_hcr`. From what I understand, this is to do
with the ARM Generic Interrupt Controller, however the RPi3b doesn't
have a GIC, it has a `bcm2836-armctrl-ic`. This occurs because the
file vcpu.h defines an inline function that calls this function,
however as the RPi3b doesn't have a GIC, neither the gic_v2.h or
gic_v3.h files are provided in the build environment, and hence the
build fails.
I am unsure what this means in terms of implementation. What needs to
be added or changed to get this compiling for the RPi3b?
Thanks in advance
Ben Turner
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