Re: [Xen-devel] [QEMU][RFC V2 01/10] xen: add new machine options to support QEMU disaggregation in Xen environment

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Wed, 22 Aug 2012, Julien Grall wrote:
>     - xen_dmid: specify the id of QEMU. It will be used to
>     retrieve/store information inside XenStore.
>     - xen_default_dev (on/off): as default devices need to be create in
>     each QEMU (due to code dependency), this option specifies if it will
>     register range/PCI of default device via xen hypercall.
>     (Root bridge, south bridge, ...).
>     - xen_emulate_ide (on/off): enable/disable emulation in QEMU.
> 
> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
> ---
>  qemu-config.c |   12 ++++++++++++
>  1 files changed, 12 insertions(+), 0 deletions(-)
> 
> diff --git a/qemu-config.c b/qemu-config.c
> index c05ffbc..7740442 100644
> --- a/qemu-config.c
> +++ b/qemu-config.c
> @@ -612,6 +612,18 @@ static QemuOptsList qemu_machine_opts = {
>              .name = "dump-guest-core",
>              .type = QEMU_OPT_BOOL,
>              .help = "Include guest memory in  a core dump",
> +        }, {
> +            .name = "xen_dmid",
> +            .type = QEMU_OPT_NUMBER,
> +            .help = "Xen device model id",
> +        }, {
> +            .name = "xen_default_dev",
> +            .type = QEMU_OPT_BOOL,
> +            .help = "emulate Xen default device (South Bridge, IDE, ...)"
                                                ^devices
It would be good to document exactly which ones are these (the default
devices)

> +        }, {
> +            .name = "xen_emulate_ide",
> +            .type = QEMU_OPT_BOOL,
> +            .help = "emulate IDE with XEN"
>          },

Is this really a Xen specific option? Couldn't be used for example by
people that wants to use virtio-scsi on KVM without IDE emulation?


>          { /* End of list */ }
>      },
> -- 
> Julien Grall
> 

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