From: Paolo Bonzini <pbonzini@redhat.com>
To: Peter Xu <peterx@redhat.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Christophe de Dinechin <dinechin@redhat.com>,
"Michael S . Tsirkin" <mst@redhat.com>,
Sean Christopherson <sean.j.christopherson@intel.com>,
Yan Zhao <yan.y.zhao@intel.com>,
Alex Williamson <alex.williamson@redhat.com>,
Jason Wang <jasowang@redhat.com>,
Kevin Kevin <kevin.tian@intel.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>
Subject: Re: [PATCH v3 00/21] KVM: Dirty ring interface
Date: Sun, 19 Jan 2020 10:11:31 +0100 [thread overview]
Message-ID: <2dbda1b2-888e-dcb8-50ec-b8400e83225c@redhat.com> (raw)
In-Reply-To: <20200109145729.32898-1-peterx@redhat.com>
On 09/01/20 15:57, Peter Xu wrote:
> Branch is here: https://github.com/xzpeter/linux/tree/kvm-dirty-ring
> (based on kvm/queue)
>
> Please refer to either the previous cover letters, or documentation
> update in patch 12 for the big picture. Previous posts:
>
> V1: https://lore.kernel.org/kvm/20191129213505.18472-1-peterx@redhat.com
> V2: https://lore.kernel.org/kvm/20191221014938.58831-1-peterx@redhat.com
>
> The major change in V3 is that we dropped the whole waitqueue and the
> global lock. With that, we have clean per-vcpu ring and no default
> ring any more. The two kvmgt refactoring patches were also included
> to show the dependency of the works.
>
> Patchset layout:
>
> Patch 1-2: Picked up from kvmgt refactoring
> Patch 3-6: Small patches that are not directly related,
> (So can be acked/nacked/picked as standalone)
> Patch 7-11: Prepares for the dirty ring interface
> Patch 12: Major implementation
> Patch 13-14: Quick follow-ups for patch 8
> Patch 15-21: Test cases
>
> V3 changelog:
>
> - fail userspace writable maps on dirty ring ranges [Jason]
> - commit message fixups [Paolo]
> - change __x86_set_memory_region to return hva [Paolo]
> - cacheline align for indices [Paolo, Jason]
> - drop waitqueue, global lock, etc., include kvmgt rework patchset
> - take lock for __x86_set_memory_region() (otherwise it triggers a
> lockdep in latest kvm/queue) [Paolo]
> - check KVM_DIRTY_LOG_PAGE_OFFSET in kvm_vm_ioctl_enable_dirty_log_ring
> - one more patch to drop x86_set_memory_region [Paolo]
> - one more patch to remove extra srcu usage in init_rmode_identity_map()
> - add some r-bs for Paolo
>
> Please review, thanks.
>
> Paolo Bonzini (1):
> KVM: Move running VCPU from ARM to common code
>
> Peter Xu (18):
> KVM: Remove kvm_read_guest_atomic()
> KVM: Add build-time error check on kvm_run size
> KVM: X86: Change parameter for fast_page_fault tracepoint
> KVM: X86: Don't take srcu lock in init_rmode_identity_map()
> KVM: Cache as_id in kvm_memory_slot
> KVM: X86: Drop x86_set_memory_region()
> KVM: X86: Don't track dirty for KVM_SET_[TSS_ADDR|IDENTITY_MAP_ADDR]
> KVM: Pass in kvm pointer into mark_page_dirty_in_slot()
> KVM: X86: Implement ring-based dirty memory tracking
> KVM: Make dirty ring exclusive to dirty bitmap log
> KVM: Don't allocate dirty bitmap if dirty ring is enabled
> KVM: selftests: Always clear dirty bitmap after iteration
> KVM: selftests: Sync uapi/linux/kvm.h to tools/
> KVM: selftests: Use a single binary for dirty/clear log test
> KVM: selftests: Introduce after_vcpu_run hook for dirty log test
> KVM: selftests: Add dirty ring buffer test
> KVM: selftests: Let dirty_log_test async for dirty ring test
> KVM: selftests: Add "-c" parameter to dirty log test
>
> Yan Zhao (2):
> vfio: introduce vfio_iova_rw to read/write a range of IOVAs
> drm/i915/gvt: subsitute kvm_read/write_guest with vfio_iova_rw
>
> Documentation/virt/kvm/api.txt | 96 ++++
> arch/arm/include/asm/kvm_host.h | 2 -
> arch/arm64/include/asm/kvm_host.h | 2 -
> arch/x86/include/asm/kvm_host.h | 7 +-
> arch/x86/include/uapi/asm/kvm.h | 1 +
> arch/x86/kvm/Makefile | 3 +-
> arch/x86/kvm/mmu/mmu.c | 6 +
> arch/x86/kvm/mmutrace.h | 9 +-
> arch/x86/kvm/svm.c | 3 +-
> arch/x86/kvm/vmx/vmx.c | 86 ++--
> arch/x86/kvm/x86.c | 43 +-
> drivers/gpu/drm/i915/gvt/kvmgt.c | 25 +-
> drivers/vfio/vfio.c | 45 ++
> drivers/vfio/vfio_iommu_type1.c | 81 ++++
> include/linux/kvm_dirty_ring.h | 55 +++
> include/linux/kvm_host.h | 37 +-
> include/linux/vfio.h | 5 +
> include/trace/events/kvm.h | 78 ++++
> include/uapi/linux/kvm.h | 33 ++
> tools/include/uapi/linux/kvm.h | 38 ++
> tools/testing/selftests/kvm/Makefile | 2 -
> .../selftests/kvm/clear_dirty_log_test.c | 2 -
> tools/testing/selftests/kvm/dirty_log_test.c | 420 ++++++++++++++++--
> .../testing/selftests/kvm/include/kvm_util.h | 4 +
> tools/testing/selftests/kvm/lib/kvm_util.c | 72 +++
> .../selftests/kvm/lib/kvm_util_internal.h | 3 +
> virt/kvm/arm/arch_timer.c | 2 +-
> virt/kvm/arm/arm.c | 29 --
> virt/kvm/arm/perf.c | 6 +-
> virt/kvm/arm/vgic/vgic-mmio.c | 15 +-
> virt/kvm/dirty_ring.c | 162 +++++++
> virt/kvm/kvm_main.c | 215 +++++++--
> 32 files changed, 1379 insertions(+), 208 deletions(-)
> create mode 100644 include/linux/kvm_dirty_ring.h
> delete mode 100644 tools/testing/selftests/kvm/clear_dirty_log_test.c
> create mode 100644 virt/kvm/dirty_ring.c
>
Queued patches 3-6, 8-9, 11; thanks!
Paolo
prev parent reply other threads:[~2020-01-19 9:11 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-09 14:57 [PATCH v3 00/21] KVM: Dirty ring interface Peter Xu
2020-01-09 14:57 ` [PATCH v3 01/21] vfio: introduce vfio_iova_rw to read/write a range of IOVAs Peter Xu
2020-01-09 14:57 ` [PATCH v3 02/21] drm/i915/gvt: subsitute kvm_read/write_guest with vfio_iova_rw Peter Xu
2020-01-09 14:57 ` [PATCH v3 03/21] KVM: Remove kvm_read_guest_atomic() Peter Xu
2020-01-09 14:57 ` [PATCH v3 04/21] KVM: Add build-time error check on kvm_run size Peter Xu
2020-01-09 14:57 ` [PATCH v3 05/21] KVM: X86: Change parameter for fast_page_fault tracepoint Peter Xu
2020-01-09 14:57 ` [PATCH v3 06/21] KVM: X86: Don't take srcu lock in init_rmode_identity_map() Peter Xu
2020-01-09 14:57 ` [PATCH v3 07/21] KVM: Cache as_id in kvm_memory_slot Peter Xu
2020-01-09 14:57 ` [PATCH v3 08/21] KVM: X86: Drop x86_set_memory_region() Peter Xu
2020-01-09 14:57 ` [PATCH v3 09/21] KVM: X86: Don't track dirty for KVM_SET_[TSS_ADDR|IDENTITY_MAP_ADDR] Peter Xu
2020-01-19 9:01 ` Paolo Bonzini
2020-01-20 6:45 ` Peter Xu
2020-01-21 15:56 ` Sean Christopherson
2020-01-21 16:14 ` Paolo Bonzini
2020-01-28 5:50 ` Peter Xu
2020-01-28 18:24 ` Sean Christopherson
2020-01-31 15:08 ` Peter Xu
2020-01-31 19:33 ` Sean Christopherson
2020-01-31 20:28 ` Peter Xu
2020-01-31 20:36 ` Sean Christopherson
2020-01-31 20:55 ` Peter Xu
2020-01-31 21:29 ` Sean Christopherson
2020-01-31 22:16 ` Peter Xu
2020-01-31 22:20 ` Sean Christopherson
2020-01-09 14:57 ` [PATCH v3 10/21] KVM: Pass in kvm pointer into mark_page_dirty_in_slot() Peter Xu
2020-01-09 14:57 ` [PATCH v3 11/21] KVM: Move running VCPU from ARM to common code Peter Xu
2020-01-09 14:57 ` [PATCH v3 12/21] KVM: X86: Implement ring-based dirty memory tracking Peter Xu
2020-01-09 16:29 ` Michael S. Tsirkin
2020-01-09 16:56 ` Alex Williamson
2020-01-09 19:21 ` Peter Xu
2020-01-09 19:36 ` Michael S. Tsirkin
2020-01-09 19:15 ` Peter Xu
2020-01-09 19:35 ` Michael S. Tsirkin
2020-01-09 20:19 ` Peter Xu
2020-01-09 22:18 ` Michael S. Tsirkin
2020-01-10 15:29 ` Peter Xu
2020-01-12 6:24 ` Michael S. Tsirkin
2020-01-14 20:01 ` Peter Xu
2020-01-15 6:50 ` Michael S. Tsirkin
2020-01-15 15:20 ` Peter Xu
2020-01-19 9:09 ` Paolo Bonzini
2020-01-19 10:12 ` Michael S. Tsirkin
2020-01-20 7:29 ` Peter Xu
2020-01-20 7:47 ` Michael S. Tsirkin
2020-01-21 8:29 ` Peter Xu
2020-01-21 10:25 ` Paolo Bonzini
2020-01-21 10:24 ` Paolo Bonzini
2020-01-11 4:49 ` kbuild test robot
2020-01-11 23:19 ` kbuild test robot
2020-01-15 6:47 ` Michael S. Tsirkin
2020-01-15 15:27 ` Peter Xu
2020-01-16 8:38 ` Michael S. Tsirkin
2020-01-16 16:27 ` Peter Xu
2020-01-17 9:50 ` Michael S. Tsirkin
2020-01-20 6:48 ` Peter Xu
2020-01-09 14:57 ` [PATCH v3 13/21] KVM: Make dirty ring exclusive to dirty bitmap log Peter Xu
2020-01-09 14:57 ` [PATCH v3 14/21] KVM: Don't allocate dirty bitmap if dirty ring is enabled Peter Xu
2020-01-09 16:41 ` Peter Xu
2020-01-09 14:57 ` [PATCH v3 15/21] KVM: selftests: Always clear dirty bitmap after iteration Peter Xu
2020-01-09 14:57 ` [PATCH v3 16/21] KVM: selftests: Sync uapi/linux/kvm.h to tools/ Peter Xu
2020-01-09 14:57 ` [PATCH v3 17/21] KVM: selftests: Use a single binary for dirty/clear log test Peter Xu
2020-01-09 14:57 ` [PATCH v3 18/21] KVM: selftests: Introduce after_vcpu_run hook for dirty " Peter Xu
2020-01-09 14:57 ` [PATCH v3 19/21] KVM: selftests: Add dirty ring buffer test Peter Xu
2020-01-09 14:57 ` [PATCH v3 20/21] KVM: selftests: Let dirty_log_test async for dirty ring test Peter Xu
2020-01-09 14:57 ` [PATCH v3 21/21] KVM: selftests: Add "-c" parameter to dirty log test Peter Xu
2020-01-09 15:59 ` [PATCH v3 00/21] KVM: Dirty ring interface Michael S. Tsirkin
2020-01-09 16:17 ` Peter Xu
2020-01-09 16:40 ` Michael S. Tsirkin
2020-01-09 17:08 ` Peter Xu
2020-01-09 19:08 ` Michael S. Tsirkin
2020-01-09 19:39 ` Peter Xu
2020-01-09 20:42 ` Paolo Bonzini
2020-01-09 22:28 ` Michael S. Tsirkin
2020-01-10 15:10 ` Peter Xu
2020-01-09 16:47 ` Alex Williamson
2020-01-09 17:58 ` Peter Xu
2020-01-09 19:13 ` Michael S. Tsirkin
2020-01-09 19:23 ` Peter Xu
2020-01-09 19:37 ` Michael S. Tsirkin
2020-01-09 20:51 ` Paolo Bonzini
2020-01-09 22:21 ` Michael S. Tsirkin
2020-01-19 9:11 ` Paolo Bonzini [this message]
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