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

Sean Christopherson
2023-03-23T22:53:46Z

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

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