linux-kernel - Re: [PATCH 2/3] KVM - Fix hypercall arguments

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Message-ID: <469C7A9E.30207@qumranet.com>
Date:	Tue, 17 Jul 2007 11:15:26 +0300
From:	Avi Kivity <avi@...ranet.com>
To:	Anthony Liguori <aliguori@...ibm.com>
CC:	Jeff Dike <jdike@...toit.com>, LKML <linux-kernel@...r.kernel.org>,
	KVM devel <kvm-devel@...ts.sourceforge.net>
Subject: Re: [PATCH 2/3] KVM - Fix hypercall arguments

Jeff Dike wrote:
> It looks like kvm_hypercall is trying to match the system call
> convention and mixed up the call number and first argument in the
> 32-bit case.
>
> Signed-off-by: Jeff Dike <jdike@...ux.intel.com>
> --
>  drivers/kvm/kvm_main.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> Index: kvm/drivers/kvm/kvm_main.c
> ===================================================================
> --- kvm.orig/drivers/kvm/kvm_main.c
> +++ kvm/drivers/kvm/kvm_main.c
> @@ -1351,8 +1351,8 @@ int kvm_hypercall(struct kvm_vcpu *vcpu,
>  	} else
>  #endif
>  	{
> -		nr = vcpu->regs[VCPU_REGS_RBX] & -1u;
> -		a0 = vcpu->regs[VCPU_REGS_RAX] & -1u;
> +		nr = vcpu->regs[VCPU_REGS_RAX] & -1u;
> +		a0 = vcpu->regs[VCPU_REGS_RBX] & -1u;
>  		a1 = vcpu->regs[VCPU_REGS_RCX] & -1u;
>  		a2 = vcpu->regs[VCPU_REGS_RDX] & -1u;
>  		a3 = vcpu->regs[VCPU_REGS_RSI] & -1u;
>   

Anthony?  I think you were hacking this area?

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

-
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