[libvirt] [PATCH 2/2] libxl: support enabling the HPET

[Eric Blake]

On 05/10/2011 05:24 AM, Paolo Bonzini wrote:
> libxl accepts hpet configuration in its domain info struct.  Parse the
> domain definition's <clock> element in order to set the value.
> 
> Signed-off-by: Paolo Bonzini <pbonzini at redhat.com>
> ---
>  src/libxl/libxl_conf.c |    8 ++++++++
>  1 files changed, 8 insertions(+), 0 deletions(-)
> 
> diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c
> index 9dc35fc..6ace10e 100644
> --- a/src/libxl/libxl_conf.c
> +++ b/src/libxl/libxl_conf.c
> @@ -374,6 +374,7 @@ libxlMakeDomBuildInfo(virDomainDefPtr def, libxl_domain_config *d_config)
>  {
>      libxl_domain_build_info *b_info = &d_config->b_info;
>      int hvm = STREQ(def->os.type, "hvm");
> +    int i;
>  
>      libxl_init_build_info(b_info, &d_config->c_info);
>  
> @@ -399,6 +400,13 @@ libxlMakeDomBuildInfo(virDomainDefPtr def, libxl_domain_config *d_config)
>          b_info->u.hvm.pae = def->features & (1 << VIR_DOMAIN_FEATURE_PAE);
>          b_info->u.hvm.apic = def->features & (1 << VIR_DOMAIN_FEATURE_APIC);
>          b_info->u.hvm.acpi = def->features & (1 << VIR_DOMAIN_FEATURE_ACPI);
> +        for (i = 0; i < def->clock.ntimers; i++) {
> +            if (def->clock.timers[i]->name == VIR_DOMAIN_TIMER_NAME_HPET &&
> +                def->clock.timers[i]->present == 1) {
> +                b_info->u.hvm.acpi.hpet = 1;
> +            }
> +        }

Like you, I'm not set up to runtime test this; but I'm getting a
compilation error:

  CC     libvirt_driver_libxl_la-libxl_conf.lo
libxl/libxl_conf.c: In function 'libxlMakeDomBuildInfo':
libxl/libxl_conf.c:409:35: error: request for member 'hpet' in something
not a structure or union

Is this something where we need to do a configure check to see whether
libxl is new enough to support that member?

This patch will need a v2, possibly with more input from those more
familiar with libxl.

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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