linux-kernel - Re: [PATCH] KVM/VMX: Avoid return error when flush tlb successfully in the hv_remote_flush_tlb_with

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: <20190111135138.GG14852@flask>
Date:   Fri, 11 Jan 2019 14:51:38 +0100
From:   Radim Krčmář <rkrcmar@...hat.com>
To:     lantianyu1986@...il.com
Cc:     Lan Tianyu <Tianyu.Lan@...rosoft.com>, pbonzini@...hat.com,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, hpa@...or.com,
        x86@...nel.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM/VMX: Avoid return error when flush tlb successfully
 in the hv_remote_flush_tlb_with_range()

2019-01-04 15:20+0800, lantianyu1986@...il.com:
> From: Lan Tianyu <Tianyu.Lan@...rosoft.com>
> 
> The "ret" is initialized to be ENOTSUPP. The return value of
> __hv_remote_flush_tlb_with_range() will be Or with "ret" when ept
> table potiners are mismatched. This will cause return ENOTSUPP even if
> flush tlb successfully. This patch is to fix the issue and set
> "ret" to 0.
> 
> Fix: a5c214da("KVM/VMX: Change hv flush logic when ept tables are mismatched.")
> Signed-off-by: Lan Tianyu <Tianyu.Lan@...rosoft.com>
> ---

Applied, thanks.