From: Avi Kivity <avi@redhat.com>
To: Sheng Yang <sheng@linux.intel.com>
Cc: Eddie Dong <eddie.dong@intel.com>, kvm@vger.kernel.org
Subject: Re: [PATCH] KVM: Discard reserved bits checking on PDE bit 7-8
Date: Thu, 02 Apr 2009 11:58:47 +0300 [thread overview]
Message-ID: <49D47E47.5060706@redhat.com> (raw)
In-Reply-To: <1238639317-23994-1-git-send-email-sheng@linux.intel.com>
Sheng Yang wrote:
> 1. It's related to a Linux kernel bug which fixed by Ingo on
> 07a66d7c53a538e1a9759954a82bb6c07365eff9. The original code exists for quite a
> long time, and it would convert a PDE for large page into a normal PDE. But it
> fail to fit normal PDE well. With the code before Ingo's fix, the kernel would
> fall reserved bit checking with bit 8 - the remaining global bit of PTE. So the
> kernel would receive a double-fault.
>
> 2. After discussion, we decide to discard PDE bit 7-8 reserved checking for now.
> For this marked as reserved in SDM, but didn't checked by the processor in
> fact...
>
Applied, thanks.
--
error compiling committee.c: too many arguments to function
prev parent reply other threads:[~2009-04-02 8:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-02 2:28 [PATCH] KVM: Discard reserved bits checking on PDE bit 7-8 Sheng Yang
2009-04-02 8:58 ` Avi Kivity [this message]
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