From: Federico Parola <federico.parola@polito.it>
To: kvm@vger.kernel.org
Subject: Pre-populate TDP table to avoid page faults at VM boot
Date: Wed, 26 Jul 2023 10:09:10 -0700 [thread overview]
Message-ID: <65262e67-7885-971a-896d-ad9c0a760907@polito.it> (raw)
Hi everyone,
is it possible to pre-populate the TDP table (EPT in my case) when
configuring the VM environment, so that there won't be a page fault / VM
exit every time the guest tries to access a RAM page for the first time?
At the moment I see a lot of page faults when the VM boots, is it
possible to prevent them to reduce boot time?
(I'm using QEMU to run my VMs.)
Best regards,
Federico Parola
next reply other threads:[~2023-07-26 17:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-26 17:09 Federico Parola [this message]
2023-07-26 17:31 ` Pre-populate TDP table to avoid page faults at VM boot Sean Christopherson
2023-07-26 18:03 ` Federico Parola
2024-02-01 18:11 ` Sean Christopherson
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