linux-kernel - Re: [PATCH v2 5/6] KVM: MMU: remove 'clear

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: <4CE4D8C9.90302@cn.fujitsu.com>
Date:	Thu, 18 Nov 2010 15:42:01 +0800
From:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>
To:	Marcelo Tosatti <mtosatti@...hat.com>
CC:	Avi Kivity <avi@...hat.com>, LKML <linux-kernel@...r.kernel.org>,
	KVM <kvm@...r.kernel.org>
Subject: Re: [PATCH v2 5/6] KVM: MMU: remove 'clear_unsync' parameter

On 11/18/2010 12:49 AM, Marcelo Tosatti wrote:
			    bool clear_unsync)
>> +static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
>>  {
>>  	int i, offset, nr_present;
>>  	bool host_writable;
>> @@ -781,7 +780,7 @@ static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
>>  			u64 nonpresent;
>>  
>>  			if (rsvd_bits_set || is_present_gpte(gpte) ||
>> -			      !clear_unsync)
>> +			      sp->unsync)
>>  				nonpresent = shadow_trap_nonpresent_pte;
>>  			else
>>  				nonpresent = shadow_notrap_nonpresent_pte;
> 
> Its better to keep this explicit as a parameter. 
> 

But after patch 6 (KVM: MMU: cleanup update_pte, pte_prefetch and sync_page functions),
this parameter is not used anymore... i don't have strong opinion on it :-)
--
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/