lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Tue, 16 Feb 2021 17:03:19 -0800
From:   Sean Christopherson <>
To:     Ashish Kalra <>
Subject: Re: [PATCH v10 10/16] KVM: x86: Introduce KVM_GET_SHARED_PAGES_LIST

On Thu, Feb 04, 2021, Ashish Kalra wrote:
> From: Brijesh Singh <>
> The ioctl is used to retrieve a guest's shared pages list.

What's the performance hit to boot time if KVM_HC_PAGE_ENC_STATUS is passed
through to userspace?  That way, userspace could manage the set of pages in
whatever data structure they want, and these get/set ioctls go away.

Also, aren't there plans for an in-guest migration helper?  If so, do we have
any idea what that interface will look like?  E.g. if we're going to end up with
a full fledged driver in the guest, why not bite the bullet now and bypass KVM

Powered by blists - more mailing lists