Re: [PATCH v1 5/5] tools: libxendevicemodel: Provide xendevicemodel_pin_memory_cacheattr

[Paul Durrant <Paul.Durrant@citrix.com>]

> -----Original Message-----
> From: Xen-devel [mailto:xen-devel-bounces@lists.xen.org] On Behalf Of
> Ross Lagerwall
> Sent: 18 October 2017 15:04
> To: Xen-devel <xen-devel@lists.xen.org>
> Cc: Ross Lagerwall <ross.lagerwall@citrix.com>; Ian Jackson
> <Ian.Jackson@citrix.com>; Wei Liu <wei.liu2@citrix.com>
> Subject: [Xen-devel] [PATCH v1 5/5] tools: libxendevicemodel: Provide
> xendevicemodel_pin_memory_cacheattr
> 
> Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>

Reviewed-by: Paul Durrant <paul.durrant@citrix.com>

> ---
>  tools/libs/devicemodel/core.c                   | 19 +++++++++++++++++++
>  tools/libs/devicemodel/include/xendevicemodel.h | 14 ++++++++++++++
>  tools/libs/devicemodel/libxendevicemodel.map    |  1 +
>  3 files changed, 34 insertions(+)
> 
> diff --git a/tools/libs/devicemodel/core.c b/tools/libs/devicemodel/core.c
> index 2a23077..dada57e 100644
> --- a/tools/libs/devicemodel/core.c
> +++ b/tools/libs/devicemodel/core.c
> @@ -581,6 +581,25 @@ int xendevicemodel_add_to_physmap(
>      return xendevicemodel_op(dmod, domid, 1, &op, sizeof(op));
>  }
> 
> +int xendevicemodel_pin_memory_cacheattr(
> +    xendevicemodel_handle *dmod, domid_t domid, uint64_t start, uint64_t
> end,
> +    uint32_t type)
> +{
> +    struct xen_dm_op op;
> +    struct xen_dm_op_pin_memory_cacheattr *data;
> +
> +    memset(&op, 0, sizeof(op));
> +
> +    op.op = XEN_DMOP_pin_memory_cacheattr;
> +    data = &op.u.pin_memory_cacheattr;
> +
> +    data->start = start;
> +    data->end = end;
> +    data->type = type;
> +
> +    return xendevicemodel_op(dmod, domid, 1, &op, sizeof(op));
> +}
> +
>  int xendevicemodel_restrict(xendevicemodel_handle *dmod, domid_t
> domid)
>  {
>      return osdep_xendevicemodel_restrict(dmod, domid);
> diff --git a/tools/libs/devicemodel/include/xendevicemodel.h
> b/tools/libs/devicemodel/include/xendevicemodel.h
> index 2c4e392..9de6d46 100644
> --- a/tools/libs/devicemodel/include/xendevicemodel.h
> +++ b/tools/libs/devicemodel/include/xendevicemodel.h
> @@ -339,6 +339,20 @@ int xendevicemodel_add_to_physmap(
>      xendevicemodel_handle *dmod, domid_t domid, uint64_t idx, uint64_t
> gpfn);
> 
>  /**
> + * Pins caching type of RAM space.
> + *
> + * @parm dmod a handle to an open devicemodel interface.
> + * @parm domid the domain id to be serviced
> + * @parm start Start gfn
> + * @parm end End gfn
> + * @parm type XEN_DOMCTL_MEM_CACHEATTR_*
> + * @return 0 on success, -1 on failure.
> + */
> +int xendevicemodel_pin_memory_cacheattr(
> +    xendevicemodel_handle *dmod, domid_t domid, uint64_t start, uint64_t
> end,
> +    uint32_t type);
> +
> +/**
>   * This function restricts the use of this handle to the specified
>   * domain.
>   *
> diff --git a/tools/libs/devicemodel/libxendevicemodel.map
> b/tools/libs/devicemodel/libxendevicemodel.map
> index 4a19ecb..e820b77 100644
> --- a/tools/libs/devicemodel/libxendevicemodel.map
> +++ b/tools/libs/devicemodel/libxendevicemodel.map
> @@ -31,4 +31,5 @@ VERS_1.1 {
>  VERS_1.2 {
>  	global:
>  		xendevicemodel_add_to_physmap;
> +		xendevicemodel_pin_memory_cacheattr;
>  } VERS_1.1;
> --
> 2.9.5
> 
> 
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