linux-kernel - Re: [PATCH v2 1/5] KVM: x86: Add return value to kvm

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]

Date:   Thu, 17 Aug 2017 20:33:32 +0800
From:   Yu Zhang <yu.c.zhang@...ux.intel.com>
To:     Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, rkrcmar@...hat.com,
        tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
        xiaoguangrong@...cent.com, joro@...tes.org
Subject: Re: [PATCH v2 1/5] KVM: x86: Add return value to kvm_cpuid().



On 8/17/2017 8:23 PM, Yu Zhang wrote:
>
>
> On 8/17/2017 8:29 PM, Paolo Bonzini wrote:
>> On 17/08/2017 21:52, Yu Zhang wrote:
>>> diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
>>> index ac15193..3e759cf 100644
>>> --- a/arch/x86/kvm/cpuid.h
>>> +++ b/arch/x86/kvm/cpuid.h
>>> @@ -21,7 +21,14 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
>>>   int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
>>>                     struct kvm_cpuid2 *cpuid,
>>>                     struct kvm_cpuid_entry2 __user *entries);
>>> -void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, 
>>> u32 *edx);
>>> +
>>> +enum {
>>> +    NO_CHECK_LIMIT = 0,
>>> +    CHECK_LIMIT = 1,
>>> +};
>> emulate.c should not include cpuid.h.  The argument can be simply a
>> bool, though.
>
> Thanks, Paolo.
> So we just use true/false in emulate.c & svm.c, is this OK?
> BTW could you please
Sorry for the unfinished line. I was wondering, why can't emulate.c 
include cpuid.h?

Yu