RE: [Xen-devel] [PATCH] xl: tsc_mode parameter in guest configuration file

[Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>]

Hi Eric --

Sorry I don't know my way around xl source, so just checking:

The tsc_mode parameter is important for both HVM and PV.
Looking through the patch, I see a lot of hvm changes.
Does the patch also handle PV tsc_mode?

Thanks,
Dan

> -----Original Message-----
> From: Eric Chanudet [mailto:eric.chanudet@xxxxxxxxxx]
> Sent: Monday, March 29, 2010 6:35 AM
> To: xen-devel
> Subject: [Xen-devel] [PATCH] xl: tsc_mode parameter in guest
> configuration file
> 
> This patch handle tsc_mode argument in guest configuration file.
> 
> Acked-by: Vincent Hanquez <vincent.hanquez@xxxxxxxxxxxxx>
> Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> 
> diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
> --- a/tools/libxl/libxl.h
> +++ b/tools/libxl/libxl.h
> @@ -74,6 +74,7 @@ typedef struct {
>      int vpt_align;
>      int max_vcpus;
>      int cur_vcpus;
> +    int tsc_mode;
>      uint32_t max_memkb;
>      uint32_t target_memkb;
>      uint32_t video_memkb;
> diff --git a/tools/libxl/libxl_dom.c b/tools/libxl/libxl_dom.c
> --- a/tools/libxl/libxl_dom.c
> +++ b/tools/libxl/libxl_dom.c
> @@ -176,7 +176,7 @@ int build_hvm(struct libxl_ctx *ctx, uin
>      ret = hvm_build_set_params(ctx->xch, domid, info->u.hvm.apic,
> info->u.hvm.acpi,
>                                 info->u.hvm.pae, info->u.hvm.nx,
> info->u.hvm.viridian,
>                                 info->max_vcpus,
> -                               state->store_port, &state->store_mfn);
> +                               state->store_port, &state->store_mfn,
> info->tsc_mode);
>      if (ret) {
>          XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, ret, "hvm build set params
> failed");
>          return ERROR_FAIL;
> diff --git a/tools/libxl/libxl_internal.h
> b/tools/libxl/libxl_internal.h
> --- a/tools/libxl/libxl_internal.h
> +++ b/tools/libxl/libxl_internal.h
> @@ -158,7 +158,7 @@ int libxl_device_pci_flr(struct libxl_ct
>  /* from xenguest (helper */
>  int hvm_build_set_params(int handle, uint32_t domid,
>                           int apic, int acpi, int pae, int nx, int
> viridian,
> -                         int vcpus, int store_evtchn, unsigned long
> *store_mfn);
> +                         int vcpus, int store_evtchn, unsigned long
> *store_mfn, int tsc_mode);
> 
>  /* xl_exec */
> 
> diff --git a/tools/libxl/xenguest.c b/tools/libxl/xenguest.c
> --- a/tools/libxl/xenguest.c
> +++ b/tools/libxl/xenguest.c
> @@ -20,7 +20,7 @@
> 
>  int hvm_build_set_params(int handle, uint32_t domid,
>                           int apic, int acpi, int pae, int nx, int
> viridian,
> -                         int vcpus, int store_evtchn, unsigned long
> *store_mfn)
> +                         int vcpus, int store_evtchn, unsigned long
> *store_mfn, int tsc_mode)
>  {
>      struct hvm_info_table *va_hvm;
>      uint8_t *va_map, sum;
> @@ -47,5 +47,6 @@ int hvm_build_set_params(int handle, uin
>      xc_set_hvm_param(handle, domid, HVM_PARAM_VIRIDIAN, viridian);
>  #endif
>      xc_set_hvm_param(handle, domid, HVM_PARAM_STORE_EVTCHN,
> store_evtchn);
> +    xc_domain_set_tsc_info(handle, domid, tsc_mode, 0, 0, 0);
>      return 0;
>  }
> diff --git a/tools/libxl/xl.c b/tools/libxl/xl.c
> --- a/tools/libxl/xl.c
> +++ b/tools/libxl/xl.c
> @@ -235,6 +235,7 @@ static void printf_info(libxl_domain_cre
>      printf("hpet: %d\n", b_info->hpet);
>      printf("vpt_align: %d\n", b_info->vpt_align);
>      printf("max_vcpus: %d\n", b_info->max_vcpus);
> +    printf("tsc_mode: %d\n", b_info->tsc_mode);
>      printf("max_memkb: %d\n", b_info->max_memkb);
>      printf("target_memkb: %d\n", b_info->target_memkb);
>      printf("kernel: %s\n", b_info->kernel);
> @@ -382,6 +383,9 @@ static void parse_config_file(const char
>          b_info->target_memkb = b_info->max_memkb;
>      }
> 
> +    if (!xlu_cfg_get_long(config, "tsc_mode", &l))
> +        b_info->tsc_mode = l;
> +
>      if (!xlu_cfg_get_long (config, "shadow_memory", &l))
>          b_info->shadow_memkb = l * 1024;
> 
> 
> --
> Eric CHANUDET
> XenClient Team
> 
> _______________________________________________
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> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel

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