linux-kernel - Re: [PATCH 3/3] KVM: Expose MSRs to userspace

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20061117001510.58f01b3c.akpm@osdl.org>
Date:	Fri, 17 Nov 2006 00:15:10 -0800
From:	Andrew Morton <akpm@...l.org>
To:	Avi Kivity <avi@...ranet.com>
Cc:	kvm-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	uril@...ranet.com
Subject: Re: [PATCH 3/3] KVM: Expose MSRs to userspace

On Fri, 17 Nov 2006 09:20:49 +0200
Avi Kivity <avi@...ranet.com> wrote:

> >> +out_vcpu:
> >> +	vcpu_put(vcpu);
> >> +
> >> +	return rc;
> >> +}
> >>     
> >
> > This function returns no indication of how many msrs it actually did set. 
> > Should it?
> >   
> 
> It can't hurt.  Is returning the number of msrs set in the return code 
> (ala short write) acceptable, or do I need to make this a read/write ioctl?
> 

I'd have thought that you'd just copy the number written into msrs->nmsrs via

	msrs->nmsrs = num_entries;

like kvm_dev_ioctl_set_msrs() does.  Dunno...
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/