Re: [PATCH] nSVM: Add a test for the P (present) bit in NPT entry

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Subject: Re: [PATCH] nSVM: Add a test for the P (present) bit in NPT entry
From: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Date: Fri, 11 Sep 2020 17:36:06 +0200
Cc: kvm list <kvm@xxxxxxxxxxxxxxx>
In-reply-to: <CALMp9eSiB=NkuZJV+m-j-KcxqVzkqTf5fUS7r9vBSaY8TyK_Rg@mail.gmail.com>
References: <20200829005720.5325-1-krish.sadhukhan@oracle.com> <CALMp9eSiB=NkuZJV+m-j-KcxqVzkqTf5fUS7r9vBSaY8TyK_Rg@mail.gmail.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0

On 31/08/20 23:55, Jim Mattson wrote:
> Moreover, older AMD hardware never sets bits 32 or 33 at all.

Interesting, I didn't know this.  Is it documented at all?

Paolo

Follow-Ups:
- Re: [PATCH] nSVM: Add a test for the P (present) bit in NPT entry
  - From: Jim Mattson

References:
- [PATCH] nSVM: Add a test for the P (present) bit in NPT entry
  - From: Krish Sadhukhan
- Re: [PATCH] nSVM: Add a test for the P (present) bit in NPT entry
  - From: Jim Mattson

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