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: <ZIumMeRxDzzcKpUh@google.com>
Date:   Thu, 15 Jun 2023 17:00:49 -0700
From:   Sean Christopherson <seanjc@...gle.com>
To:     Yang Weijiang <weijiang.yang@...el.com>
Cc:     pbonzini@...hat.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, peterz@...radead.org,
        rppt@...nel.org, binbin.wu@...ux.intel.com,
        rick.p.edgecombe@...el.com, john.allen@....com
Subject: Re: [PATCH v3 00/21] Enable CET Virtualization

On Thu, Jun 15, 2023, Sean Christopherson wrote:
> Your cover letter from v2 back in April said the same thing.  Why hasn't the patch
> been posted?  And what exactly is the issue?  IIUC, setting CR4.CET with
> MSR_IA32_S_CET=0 and MSR_IA32_U_CET=0 should be a nop, which suggests that there's
> a KVM bug.  And if that's the case, the next obvious questions is, why are you
> posting known buggy code?

Ah, is the problem that the test doesn't set CR0.WP as required by CR4.CET=1?

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ