linux-kernel - Re: [PATCH] locking/paravirt: Fix performance regression on core bonded vCPU

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Message-ID: <MEYP282MB4026FF84EBFFBEB36C9E1682C3389@MEYP282MB4026.AUSP282.PROD.OUTLOOK.COM>
Date:   Thu,  3 Nov 2022 21:58:35 +0800
From:   johnnyaiai <arafatms@...look.com>
To:     jgross@...e.com
Cc:     arafatms@...look.com, bp@...en8.de, dave.hansen@...ux.intel.com,
        hpa@...or.com, johnnyaiai@...cent.com,
        linux-kernel@...r.kernel.org, mingo@...hat.com, tglx@...utronix.de,
        virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH] locking/paravirt: Fix performance regression on core bonded vCPU

Thanks for reply! I think nopvspin parameters controls
pvspinlock or native spinlock. a vm guest always running
on virtspin wheather nopvspin sets or not when EXITS_HALT
not supported by hypervisor. So provide a missing parameter
'novirtspin'.