Re: [RFC 5/6] qemu: Fill in GIC capabilities

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On 03/21/2016 01:28 PM, Andrea Bolognani wrote:
> Take the GIC capabilities stored in a virQEMUCaps instance and
> update a virDomainCaps instance appropriately.
> ---
>  src/qemu/qemu_capabilities.c | 38 +++++++++++++++++++++++++++++++++++++-
>  1 file changed, 37 insertions(+), 1 deletion(-)
> 

I think domaincapstest.c should be modified to add a (new) 2.6 version
of the *.caps file. One that has the supported='yes' set.

and this is probably where the docs get modified to add the new elements...

> diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
> index e54208a..64007f0 100644
> --- a/src/qemu/qemu_capabilities.c
> +++ b/src/qemu/qemu_capabilities.c
> @@ -4065,6 +4065,41 @@ virQEMUCapsFillDomainDeviceHostdevCaps(virQEMUCapsPtr qemuCaps,
>  }
>  
>  
> +static int
> +virQEMUCapsFillDomainFeatureGICCaps(virQEMUCapsPtr qemuCaps,
> +                                    virDomainCapsPtr domCaps)
> +{
> +    virDomainCapsFeatureGICPtr gic = &domCaps->gic;
> +    size_t i;
> +
> +    if (domCaps->arch != VIR_ARCH_ARMV7L &&
> +        domCaps->arch != VIR_ARCH_AARCH64)
> +        return 0;
> +
> +    if (STRNEQ(domCaps->machine, "virt") &&
> +        !STRPREFIX(domCaps->machine, "virt-"))
> +        return 0;
> +
> +    for (i = 0; i < qemuCaps->ngicCapabilities; i++) {
> +        virGICCapabilityPtr cap = &qemuCaps->gicCapabilities[i];
> +
> +        if (domCaps->virttype == VIR_DOMAIN_VIRT_KVM &&
> +            !(cap->implementation & VIR_GIC_IMPLEMENTATION_KERNEL))
> +            continue;
> +
> +        if (domCaps->virttype == VIR_DOMAIN_VIRT_QEMU &&
> +            !(cap->implementation & VIR_GIC_IMPLEMENTATION_EMULATED))
> +            continue;

For these, patch 6 would need to be already in place I think if
circumstances were "just right" (so to speak).

> +
> +        gic->supported = true;
> +        VIR_DOMAIN_CAPS_ENUM_SET(gic->version,
> +                                 cap->version);

Can there be more than one?  How is that handled!

IOW: Once we print, do we just break;?


John

> +    }
> +
> +    return 0;
> +}
> +
> +
>  int
>  virQEMUCapsFillDomainCaps(virDomainCapsPtr domCaps,
>                            virQEMUCapsPtr qemuCaps,
> @@ -4081,7 +4116,8 @@ virQEMUCapsFillDomainCaps(virDomainCapsPtr domCaps,
>      if (virQEMUCapsFillDomainOSCaps(qemuCaps, os,
>                                      loader, nloader) < 0 ||
>          virQEMUCapsFillDomainDeviceDiskCaps(qemuCaps, domCaps->machine, disk) < 0 ||
> -        virQEMUCapsFillDomainDeviceHostdevCaps(qemuCaps, hostdev) < 0)
> +        virQEMUCapsFillDomainDeviceHostdevCaps(qemuCaps, hostdev) < 0 ||
> +        virQEMUCapsFillDomainFeatureGICCaps(qemuCaps, domCaps) < 0)
>          return -1;
>      return 0;
>  }
> 

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