linux-kernel - Re: [PATCH v2 5/5] Documentation: Add ABI entry for sysfs file vmcsinfo and vmcsinfo

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Date:	Thu, 14 Jun 2012 16:21:56 +0300
From:	Avi Kivity <avi@...hat.com>
To:	zhangyanfei <zhangyanfei@...fujitsu.com>
CC:	mtosatti@...hat.com, ebiederm@...ssion.com, luto@....edu,
	Joerg Roedel <joerg.roedel@....com>, dzickus@...hat.com,
	paul.gortmaker@...driver.com, ludwig.nussel@...e.de,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	kexec@...ts.infradead.org, Greg KH <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v2 5/5] Documentation: Add ABI entry for sysfs file vmcsinfo
 and vmcsinfo_maxsize

On 05/16/2012 10:57 AM, zhangyanfei wrote:
> We create two new sysfs files, vmcsinfo and vmcsinfo_maxsize. And
> here we add an Documentation/ABI entry for them.
> 
> 
> diff --git a/Documentation/ABI/testing/sysfs-kernel-vmcsinfo b/Documentation/ABI/testing/sysfs-kernel-vmcsinfo
> new file mode 100644
> index 0000000..adbf866
> --- /dev/null
> +++ b/Documentation/ABI/testing/sysfs-kernel-vmcsinfo
> @@ -0,0 +1,16 @@
> +What:		/sys/kernel/vmcsinfo
> +Date:		April 2012
> +KernelVersion:	3.4.0
> +Contact:	Zhang Yanfei <zhangyanfei@...fujitsu.com>
> +Description
> +		Shows physical address of VMCSINFO. VMCSINFO contains
> +		the VMCS revision identifier and encoded offsets of fields
> +		in VMCS data on Intel processors equipped with the VT
> +		extensions.
> +
> +What:		/sys/kernel/vmcsinfo_maxsize
> +Date:		April 2012
> +KernelVersion:	3.4.0
> +Contact:	Zhang Yanfei <zhangyanfei@...fujitsu.com>
> +Description
> +		Shows max size of VMCSINFO.
> 

This describes the cpu, so maybe /sys/devices/cpu is a better place for
these files.

Would it make sense to expose the actual fields?

that is, have /sys/devices/cpu/vmcs/0806 contain the offset of
GUEST_DS_SELECTOR.

-- 
error compiling committee.c: too many arguments to function


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