Re: [RFC PATCH 5/6] conf: Parse and format HPT maxpagesize

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On Wed, May 23, 2018 at 18:18:01 +0200, Andrea Bolognani wrote:
> This commit is best viewed with 'git show -w'.
> 
> Signed-off-by: Andrea Bolognani <abologna@xxxxxxxxxx>
> ---
>  docs/schemas/domaincommon.rng                 | 21 ++++++---
>  src/conf/domain_conf.c                        | 44 ++++++++++++++++---
>  src/conf/domain_conf.h                        |  1 +
>  tests/qemuxml2argvdata/pseries-features.xml   |  4 +-
>  tests/qemuxml2argvtest.c                      |  1 +
>  tests/qemuxml2xmloutdata/pseries-features.xml |  4 +-
>  tests/qemuxml2xmltest.c                       |  1 +
>  7 files changed, 60 insertions(+), 16 deletions(-)
> 

[...]

> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> index 20b845f02a..e84cfb0d05 100644
> --- a/src/conf/domain_conf.c
> +++ b/src/conf/domain_conf.c
> @@ -19493,8 +19493,24 @@ virDomainDefParseXML(xmlDocPtr xml,
>                  VIR_FREE(tmp);
>              }
>  
> -            if (def->hpt_resizing != VIR_DOMAIN_HPT_RESIZING_NONE)
> +            if (virDomainParseScaledValue("./features/hpt/maxpagesize",
> +                                          NULL,
> +                                          ctxt,
> +                                          &def->hpt_maxpagesize,
> +                                          1024,
> +                                          ULLONG_MAX,
> +                                          false) < 0) {
> +                virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
> +                               "%s",
> +                               _("Unable to parse HPT maxpagesize setting"));
> +                goto error;
> +            }
> +            def->hpt_maxpagesize = VIR_ROUND_UP(def->hpt_maxpagesize, 1024);

The code in the patch using it with qemu actually expects so this is a
power of 2, so you'll need a different rounding function. 

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