linux-kernel - Re: [PATCH v4 0/6] KVM: MMU: performance tweaks for heavy CR0.WP users

lists.openwall.net		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:   Thu, 23 Mar 2023 15:50:34 -0700
From:   Sean Christopherson <seanjc@...gle.com>
To:     Sean Christopherson <seanjc@...gle.com>, kvm@...r.kernel.org,
        Mathias Krause <minipli@...ecurity.net>
Cc:     linux-kernel@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>
Subject: Re: [PATCH v4 0/6] KVM: MMU: performance tweaks for heavy CR0.WP users

On Wed, 22 Mar 2023 02:37:25 +0100, Mathias Krause wrote:
> v3: https://lore.kernel.org/kvm/20230201194604.11135-1-minipli@grsecurity.net/
> 
> This series is the fourth iteration of resurrecting the missing pieces of
> Paolo's previous attempt[1] to avoid needless MMU roots unloading.
> 
> It's incorporating Sean's feedback to v3 and rebased on top of
> kvm-x86/next, namely commit d8708b80fa0e ("KVM: Change return type of
> kvm_arch_vm_ioctl() to "int"").
> 
> [...]

Applied 1 and 5 to kvm-x86 mmu, and the rest to kvm-x86 misc, thanks!

[1/6] KVM: x86/mmu: Avoid indirect call for get_cr3
      https://github.com/kvm-x86/linux/commit/2fdcc1b32418
[2/6] KVM: x86: Do not unload MMU roots when only toggling CR0.WP with TDP enabled
      https://github.com/kvm-x86/linux/commit/01b31714bd90
[3/6] KVM: x86: Ignore CR0.WP toggles in non-paging mode
      https://github.com/kvm-x86/linux/commit/e40bcf9f3a18
[4/6] KVM: x86: Make use of kvm_read_cr*_bits() when testing bits
      https://github.com/kvm-x86/linux/commit/74cdc836919b
[5/6] KVM: x86/mmu: Fix comment typo
      https://github.com/kvm-x86/linux/commit/50f13998451e
[6/6] KVM: VMX: Make CR0.WP a guest owned bit
      https://github.com/kvm-x86/linux/commit/fb509f76acc8

--
https://github.com/kvm-x86/linux/tree/next
https://github.com/kvm-x86/linux/tree/fixes