linux-kernel - Re: [PATCH v3 2/4] xen/pv: fix vendor checks for pmu emulation

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] [day] [month] [year] [list]

Message-ID: <ed377c8c-95c3-8386-cfa2-51ae9b8add67@suse.com>
Date:   Wed, 5 Oct 2022 13:59:03 +0200
From:   Jan Beulich <jbeulich@...e.com>
To:     Juergen Gross <jgross@...e.com>
Cc:     Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>, xen-devel@...ts.xenproject.org,
        linux-kernel@...r.kernel.org, x86@...nel.org
Subject: Re: [PATCH v3 2/4] xen/pv: fix vendor checks for pmu emulation

On 05.10.2022 13:03, Juergen Gross wrote:
> The CPU vendor checks for pmu emulation are rather limited today, as
> the assumption seems to be that only Intel and AMD are existing and/or
> supported vendors.
> 
> Fix that by handling Centaur and Zhaoxin CPUs the same way as Intel,
> and Hygon the same way as AMD.
> 
> While at it fix the return type of is_intel_pmu_msr().
> 
> Suggested-by: Jan Beulich <jbeulich@...e.com>
> Signed-off-by: Juergen Gross <jgross@...e.com>

Reviewed-by: Jan Beulich <jbeulich@...e.com>