linux-kernel - Re: [PATCH 2/3] x86/kvm/hyper-v: remove stale entries from vec_bitmap/auto_eoi

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Date:   Wed, 28 Feb 2018 17:38:46 +0300
From:   Roman Kagan <rkagan@...tuozzo.com>
To:     Vitaly Kuznetsov <vkuznets@...hat.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org, x86@...nel.org,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        "Michael Kelley (EOSG)" <Michael.H.Kelley@...rosoft.com>,
        Andrey Smetanin <asmetanin@...tuozzo.com>,
        "Denis V . Lunev" <den@...nvz.org>
Subject: Re: [PATCH 2/3] x86/kvm/hyper-v: remove stale entries from
 vec_bitmap/auto_eoi_bitmap on vector change

On Wed, Feb 28, 2018 at 02:44:00PM +0100, Vitaly Kuznetsov wrote:
> When a new vector is written to SINx we update vec_bitmap/auto_eoi_bitmap
> but we forget to remove old vector from these masks (in case it is not
> present in some other SINTx).
> 
> Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
> ---
>  arch/x86/include/uapi/asm/hyperv.h |  2 ++
>  arch/x86/kvm/hyperv.c              | 32 ++++++++++++++++++++++----------
>  2 files changed, 24 insertions(+), 10 deletions(-)

Reviewed-by: Roman Kagan <rkagan@...tuozzo.com>