Re: [Xen-devel] [PATCH 03/27] tools/libxl: Stash all restore parameters in domain_create_state

[Yang Hongyang <yanghy@xxxxxxxxxxxxxx>]

On 06/15/2015 09:44 PM, Andrew Cooper wrote:
> Shortly more parameters will appear, and this saves unboxing each one.
>
> No functional change.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> CC: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
> CC: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
> CC: Wei Liu <wei.liu2@xxxxxxxxxx>
Reviewed-by: Yang Hongyang <yanghy@xxxxxxxxxxxxxx>

> ---
>   tools/libxl/libxl_create.c       |   12 ++++++------
>   tools/libxl/libxl_internal.h     |    2 +-
>   tools/libxl/libxl_save_callout.c |    2 +-
>   3 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
> index 86384d2..385891c 100644
> --- a/tools/libxl/libxl_create.c
> +++ b/tools/libxl/libxl_create.c
> @@ -1577,8 +1577,8 @@ static void domain_create_cb(libxl__egc *egc,
>                                int rc, uint32_t domid);
>
>   static int do_domain_create(libxl_ctx *ctx, libxl_domain_config *d_config,
> -                            uint32_t *domid,
> -                            int restore_fd, int checkpointed_stream,
> +                            uint32_t *domid, int restore_fd,
> +                            const libxl_domain_restore_params *params,
>                               const libxl_asyncop_how *ao_how,
>                               const libxl_asyncprogress_how *aop_console_how)
>   {
> @@ -1591,8 +1591,8 @@ static int do_domain_create(libxl_ctx *ctx, 
> libxl_domain_config *d_config,
>       libxl_domain_config_init(&cdcs->dcs.guest_config_saved);
>       libxl_domain_config_copy(ctx, &cdcs->dcs.guest_config_saved, d_config);
>       cdcs->dcs.restore_fd = restore_fd;
> +    if (params) cdcs->dcs.restore_params = *params;
>       cdcs->dcs.callback = domain_create_cb;
> -    cdcs->dcs.checkpointed_stream = checkpointed_stream;
>       libxl__ao_progress_gethow(&cdcs->dcs.aop_console_how, aop_console_how);
>       cdcs->domid_out = domid;
>
> @@ -1619,7 +1619,7 @@ int libxl_domain_create_new(libxl_ctx *ctx, 
> libxl_domain_config *d_config,
>                               const libxl_asyncop_how *ao_how,
>                               const libxl_asyncprogress_how *aop_console_how)
>   {
> -    return do_domain_create(ctx, d_config, domid, -1, 0,
> +    return do_domain_create(ctx, d_config, domid, -1, NULL,
>                               ao_how, aop_console_how);
>   }
>
> @@ -1629,8 +1629,8 @@ int libxl_domain_create_restore(libxl_ctx *ctx, 
> libxl_domain_config *d_config,
>                                   const libxl_asyncop_how *ao_how,
>                                   const libxl_asyncprogress_how 
> *aop_console_how)
>   {
> -    return do_domain_create(ctx, d_config, domid, restore_fd,
> -                            params->checkpointed_stream, ao_how, 
> aop_console_how);
> +    return do_domain_create(ctx, d_config, domid, restore_fd, params,
> +                            ao_how, aop_console_how);
>   }
>
>   /*
> diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
> index 6226c18..796bd21 100644
> --- a/tools/libxl/libxl_internal.h
> +++ b/tools/libxl/libxl_internal.h
> @@ -3122,11 +3122,11 @@ struct libxl__domain_create_state {
>       libxl_domain_config *guest_config;
>       libxl_domain_config guest_config_saved; /* vanilla config */
>       int restore_fd;
> +    libxl_domain_restore_params restore_params;
>       libxl__domain_create_cb *callback;
>       libxl_asyncprogress_how aop_console_how;
>       /* private to domain_create */
>       int guest_domid;
> -    int checkpointed_stream;
>       libxl__domain_build_state build_state;
>       libxl__bootloader_state bl;
>       libxl__stub_dm_spawn_state dmss;
> diff --git a/tools/libxl/libxl_save_callout.c b/tools/libxl/libxl_save_callout.c
> index 40b25e4..3585a84 100644
> --- a/tools/libxl/libxl_save_callout.c
> +++ b/tools/libxl/libxl_save_callout.c
> @@ -59,7 +59,7 @@ void libxl__xc_domain_restore(libxl__egc *egc, 
> libxl__domain_create_state *dcs,
>           state->store_domid, state->console_port,
>           state->console_domid,
>           hvm, pae, superpages,
> -        cbflags, dcs->checkpointed_stream,
> +        cbflags, dcs->restore_params.checkpointed_stream,
>       };
>
>       dcs->shs.ao = ao;
--
Thanks,
Yang.

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