From: Paolo Bonzini <pbonzini@redhat.com>
To: Sean Christopherson <seanjc@google.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [GIT PULL] KVM: x86: MMU changes for 6.9
Date: Thu, 14 Mar 2024 19:31:30 +0100 [thread overview]
Message-ID: <CABgObfa3By9GU9_8FmqHQK-AxWU3ocbBkQK0xXwx2XRDP828dg@mail.gmail.com> (raw)
In-Reply-To: <20240308223702.1350851-5-seanjc@google.com>
On Fri, Mar 8, 2024 at 11:37 PM Sean Christopherson <seanjc@google.com> wrote:
>
> - Zap TDP MMU roots at 4KiB granularity to minimize the delay in yielding if
> a reschedule is needed, e.g. if a high priority task needs to run. Because
> KVM doesn't support yielding in the middle of processing a zapped non-leaf
> SPTE, zapping at 1GiB granularity can result in multi-millisecond lag when
> attempting to schedule in a high priority.
>
Would 2 MiB provide a nice middle ground?
Paolo
next prev parent reply other threads:[~2024-03-14 18:31 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-08 22:36 [GIT PULL] KVM: x86 pull requests for 6.9 Sean Christopherson
2024-03-08 22:36 ` [GIT PULL] KVM: Async #PF changes " Sean Christopherson
2024-03-11 14:23 ` Paolo Bonzini
2024-03-08 22:36 ` [GIT PULL] KVM: Common MMU " Sean Christopherson
2024-03-11 14:23 ` Paolo Bonzini
2024-03-08 22:36 ` [GIT PULL] KVM: x86: Misc " Sean Christopherson
2024-03-11 14:28 ` Paolo Bonzini
2024-03-08 22:36 ` [GIT PULL] KVM: x86: MMU " Sean Christopherson
2024-03-11 14:30 ` Paolo Bonzini
2024-03-14 18:31 ` Paolo Bonzini [this message]
2024-03-14 18:38 ` Sean Christopherson
2024-03-14 18:43 ` Paolo Bonzini
2024-03-08 22:36 ` [GIT PULL] KVM: x86: PMU " Sean Christopherson
2024-03-11 14:40 ` Paolo Bonzini
2024-03-08 22:36 ` [GIT PULL] KVM: x86: Selftests " Sean Christopherson
2024-03-11 14:21 ` Paolo Bonzini
2024-03-11 14:35 ` Paolo Bonzini
2024-03-12 23:00 ` Sean Christopherson
2024-03-14 18:40 ` Sean Christopherson
2024-03-08 22:37 ` [GIT PULL] KVM: x86: VMX " Sean Christopherson
2024-03-11 14:42 ` Paolo Bonzini
2024-03-08 22:37 ` [GIT PULL] KVM: Xen and gfn_to_pfn_cache " Sean Christopherson
2024-03-11 14:02 ` Janosch Frank
2024-03-11 14:43 ` Paolo Bonzini
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