From: Peter Xu <peterx@redhat.com>
To: Gavin Shan <gshan@redhat.com>
Cc: catalin.marinas@arm.com, kvm@vger.kernel.org,
Marc Zyngier <maz@kernel.org>,
andrew.jones@linux.dev, kvmarm@lists.linux.dev, will@kernel.org,
shan.gavin@gmail.com, bgardon@google.com, dmatlack@google.com,
pbonzini@redhat.com, zhenyzha@redhat.com, shuah@kernel.org,
kvmarm@lists.cs.columbia.edu
Subject: Re: [PATCH v4 3/6] KVM: arm64: Enable ring-based dirty memory tracking
Date: Tue, 4 Oct 2022 09:26:11 -0400 [thread overview]
Message-ID: <Yzw0c5tD28W8L7wP@x1n> (raw)
In-Reply-To: <8b82ef3d-16ab-0aee-b464-8ad9b3718028@redhat.com>
On Tue, Oct 04, 2022 at 12:26:23PM +0800, Gavin Shan wrote:
> Note: for post-copy and snapshot, I assume we need to save the dirty bitmap
> in the last synchronization, right after the VM is stopped.
Agreed on postcopy. Note that snapshot doesn't use kvm dirty logging
because it requires synchronous events (userfaultfd), so that's not
affected by this work. Thanks,
--
Peter Xu
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WARNING: multiple messages have this Message-ID (diff)
From: Peter Xu <peterx@redhat.com>
To: Gavin Shan <gshan@redhat.com>
Cc: Marc Zyngier <maz@kernel.org>,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
catalin.marinas@arm.com, bgardon@google.com, shuah@kernel.org,
andrew.jones@linux.dev, will@kernel.org, dmatlack@google.com,
pbonzini@redhat.com, zhenyzha@redhat.com, shan.gavin@gmail.com,
james.morse@arm.com, suzuki.poulose@arm.com,
alexandru.elisei@arm.com, oliver.upton@linux.dev,
kvmarm@lists.linux.dev
Subject: Re: [PATCH v4 3/6] KVM: arm64: Enable ring-based dirty memory tracking
Date: Tue, 4 Oct 2022 09:26:11 -0400 [thread overview]
Message-ID: <Yzw0c5tD28W8L7wP@x1n> (raw)
In-Reply-To: <8b82ef3d-16ab-0aee-b464-8ad9b3718028@redhat.com>
On Tue, Oct 04, 2022 at 12:26:23PM +0800, Gavin Shan wrote:
> Note: for post-copy and snapshot, I assume we need to save the dirty bitmap
> in the last synchronization, right after the VM is stopped.
Agreed on postcopy. Note that snapshot doesn't use kvm dirty logging
because it requires synchronous events (userfaultfd), so that's not
affected by this work. Thanks,
--
Peter Xu
next prev parent reply other threads:[~2022-10-04 13:26 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-27 0:54 [PATCH v4 0/6] KVM: arm64: Enable ring-based dirty memory tracking Gavin Shan
2022-09-27 0:54 ` Gavin Shan
2022-09-27 0:54 ` [PATCH v4 1/6] KVM: x86: Introduce KVM_REQ_RING_SOFT_FULL Gavin Shan
2022-09-27 0:54 ` Gavin Shan
2022-09-27 10:26 ` Marc Zyngier
2022-09-27 10:26 ` Marc Zyngier
2022-09-27 11:31 ` Gavin Shan
2022-09-27 11:31 ` Gavin Shan
2022-09-27 16:00 ` Peter Xu
2022-09-27 16:00 ` Peter Xu
2022-09-27 0:54 ` [PATCH v4 2/6] KVM: x86: Move declaration of kvm_cpu_dirty_log_size() to kvm_dirty_ring.h Gavin Shan
2022-09-27 0:54 ` Gavin Shan
2022-09-27 16:00 ` Peter Xu
2022-09-27 16:00 ` Peter Xu
2022-09-27 0:54 ` [PATCH v4 3/6] KVM: arm64: Enable ring-based dirty memory tracking Gavin Shan
2022-09-27 0:54 ` Gavin Shan
2022-09-27 16:02 ` Peter Xu
2022-09-27 16:02 ` Peter Xu
2022-09-27 17:32 ` Marc Zyngier
2022-09-27 17:32 ` Marc Zyngier
2022-09-27 18:21 ` Peter Xu
2022-09-27 18:21 ` Peter Xu
2022-09-27 23:47 ` Gavin Shan
2022-09-27 23:47 ` Gavin Shan
2022-09-28 8:25 ` Marc Zyngier
2022-09-28 8:25 ` Marc Zyngier
2022-09-28 14:52 ` Peter Xu
2022-09-28 14:52 ` Peter Xu
2022-09-29 9:50 ` Gavin Shan
2022-09-29 9:50 ` Gavin Shan
2022-09-29 11:31 ` Gavin Shan
2022-09-29 11:31 ` Gavin Shan
2022-09-29 14:44 ` Marc Zyngier
2022-09-29 14:44 ` Marc Zyngier
2022-09-29 14:32 ` Peter Xu
2022-09-29 14:32 ` Peter Xu
2022-09-30 9:28 ` Marc Zyngier
2022-09-30 9:28 ` Marc Zyngier
2022-09-29 14:42 ` Marc Zyngier
2022-09-29 14:42 ` Marc Zyngier
2022-10-04 4:26 ` Gavin Shan
2022-10-04 4:26 ` Gavin Shan
2022-10-04 13:26 ` Peter Xu [this message]
2022-10-04 13:26 ` Peter Xu
2022-10-04 15:45 ` Marc Zyngier
2022-10-04 15:45 ` Marc Zyngier
2022-09-29 14:34 ` Marc Zyngier
2022-09-29 14:34 ` Marc Zyngier
2022-09-27 0:54 ` [PATCH v4 4/6] KVM: selftests: Use host page size to map ring buffer in dirty_log_test Gavin Shan
2022-09-27 0:54 ` Gavin Shan
2022-09-27 0:54 ` [PATCH v4 5/6] KVM: selftests: Clear dirty ring states between two modes " Gavin Shan
2022-09-27 0:54 ` Gavin Shan
2022-09-27 0:54 ` [PATCH v4 6/6] KVM: selftests: Automate choosing dirty ring size " Gavin Shan
2022-09-27 0:54 ` Gavin Shan
2022-09-27 10:30 ` [PATCH v4 0/6] KVM: arm64: Enable ring-based dirty memory tracking Marc Zyngier
2022-09-27 10:30 ` Marc Zyngier
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