linux-kernel - Re: [PATCH v7 1/3] KVM: x86: export svm/vmx exit code and vector code to userspace

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Date:	Mon, 03 Sep 2012 14:13:18 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Dong Hao <haodong@...ux.vnet.ibm.com>
CC:	acme@...radead.org, mtosatti@...hat.com, mingo@...e.hu,
	xiaoguangrong@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org
Subject: Re: [PATCH v7 1/3] KVM: x86: export svm/vmx exit code and vector
 code to userspace

On 08/27/2012 12:51 PM, Dong Hao wrote:
> From: Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
> 
> Exporting KVM exit information to userspace to be consumed by perf.
> 
> [ Dong Hao <haodong@...ux.vnet.ibm.com>: rebase it on acme's git tree ]
> Signed-off-by: Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
> Signed-off-by: Dong Hao <haodong@...ux.vnet.ibm.com>
> ---
>  arch/x86/include/asm/kvm_host.h |   36 ++++---

Please put ABIs in kvm.h.  But see below.

>  arch/x86/include/asm/svm.h      |  205 +++++++++++++++++++++++++--------------
>  arch/x86/include/asm/vmx.h      |  126 ++++++++++++++++--------
>  arch/x86/kvm/trace.h            |   89 -----------------
>  4 files changed, 234 insertions(+), 222 deletions(-)
> 
>  
> +#define DE_VECTOR 0
> +#define DB_VECTOR 1
> +#define BP_VECTOR 3
> +#define OF_VECTOR 4
> +#define BR_VECTOR 5
> +#define UD_VECTOR 6
> +#define NM_VECTOR 7
> +#define DF_VECTOR 8
> +#define TS_VECTOR 10
> +#define NP_VECTOR 11
> +#define SS_VECTOR 12
> +#define GP_VECTOR 13
> +#define PF_VECTOR 14
> +#define MF_VECTOR 16
> +#define MC_VECTOR 18

This is not a kvm ABI, but an x86 architecture constants.  It should be
put into an existing x86 header.

> +
>  #endif /* _ASM_X86_KVM_HOST_H */
> diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h
> index f2b83bc..cdf5674 100644
> --- a/arch/x86/include/asm/svm.h
> +++ b/arch/x86/include/asm/svm.h
> @@ -1,6 +1,135 @@
>  #ifndef __SVM_H
>  #define __SVM_H
>  
> +
> +#ifdef __KERNEL__
> +

The entire file can be exported; nothing in there is implementation
specific.

> diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
> index 74fcb96..61e04e9 100644
> --- a/arch/x86/include/asm/vmx.h
> +++ b/arch/x86/include/asm/vmx.h
> +
> +#ifdef __KERNEL__
> +

Ditto.


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