linux-kernel - Re: [PATCH 2/2] xen: add sysfs node for guest type

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Date:   Mon, 22 May 2017 09:17:40 -0400
From:   Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:     Juergen Gross <jgross@...e.com>, linux-kernel@...r.kernel.org,
        xen-devel@...ts.xenproject.org
Subject: Re: [PATCH 2/2] xen: add sysfs node for guest type


> diff --git a/Documentation/ABI/testing/sysfs-hypervisor b/Documentation/ABI/testing/sysfs-hypervisor
> index 443196f0aa1c..06850f74ebd4 100644
> --- a/Documentation/ABI/testing/sysfs-hypervisor
> +++ b/Documentation/ABI/testing/sysfs-hypervisor
> @@ -19,6 +19,19 @@ Contact:	xen-devel@...ts.xenproject.org
>  Description:
>  		Compiler which was used to build the Xen hypervisor
>  
> +What:		/sys/hypervisor/guest_type
> +Date:		May 2017
> +KernelVersion:	4.12
> +Contact:	xen-devel@...ts.xenproject.org
> +Description:
> +		Type of guest:
> +		"native": standard guest type on arm
> +		"HVM": fully virtualized guest (x86)

Can we ever get this? Xen sysfs node won't load unless we are
!XEN_NATIVE and then we are either PVH or PVHVM.

-boris

> +		"PV": paravirtualized guest (x86)
> +		"PVH": fully virtualized guest without legacy emulation (x86)
> +		"PVHVM": fully virtualized guest using paravirtualized
> +			interfaces (e.g. interrupts, timers) (x86)
> +
>