Re: [Xen-devel] [PATCH] pvh support for gdbsx

[George Dunlap <dunlapg@xxxxxxxxx>]

On Sat, Nov 23, 2013 at 12:48 AM, Mukesh Rathor
<mukesh.rathor@xxxxxxxxxx> wrote:
> Add pvh support to gdbsx so it can be used to debug pvh domUs.
>
> Signed-off-by: Mukesh Rathor <mukesh.rathor@xxxxxxxxxx>

In theory the "pvh_guest" flag will go away at some point, but until then:

Release-acked-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>

> ---
>  tools/debugger/gdbsx/xg/xg_main.c |    4 +++-
>  1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/tools/debugger/gdbsx/xg/xg_main.c 
> b/tools/debugger/gdbsx/xg/xg_main.c
> index 64c7484..5736b86 100644
> --- a/tools/debugger/gdbsx/xg/xg_main.c
> +++ b/tools/debugger/gdbsx/xg/xg_main.c
> @@ -81,6 +81,7 @@ int xgtrc_on = 0;
>  struct xen_domctl domctl;         /* just use a global domctl */
>
>  static int     _hvm_guest;        /* hvm guest? 32bit HVMs have 64bit 
> context */
> +static int     _pvh_guest;        /* PV guest in HVM container */
>  static domid_t _dom_id;           /* guest domid */
>  static int     _max_vcpu_id;      /* thus max_vcpu_id+1 VCPUs */
>  static int     _dom0_fd;          /* fd of /dev/privcmd */
> @@ -309,6 +310,7 @@ xg_attach(int domid, int guest_bitness)
>
>      _max_vcpu_id = domctl.u.getdomaininfo.max_vcpu_id;
>      _hvm_guest = (domctl.u.getdomaininfo.flags & XEN_DOMINF_hvm_guest);
> +    _pvh_guest = (domctl.u.getdomaininfo.flags & XEN_DOMINF_pvh_guest);
>      return _max_vcpu_id;
>  }
>
> @@ -369,7 +371,7 @@ _change_TF(vcpuid_t which_vcpu, int guest_bitness, int 
> setit)
>      int sz = sizeof(anyc);
>
>      /* first try the MTF for hvm guest. otherwise do manually */
> -    if (_hvm_guest) {
> +    if (_hvm_guest || _pvh_guest) {
>          domctl.u.debug_op.vcpu = which_vcpu;
>          domctl.u.debug_op.op = setit ? XEN_DOMCTL_DEBUG_OP_SINGLE_STEP_ON :
>                                         XEN_DOMCTL_DEBUG_OP_SINGLE_STEP_OFF;
> --
> 1.7.2.3
>
>
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> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel

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