From: Salil Mehta <salil.mehta@huawei.com>
To: Igor Mammedov <imammedo@redhat.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
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Linuxarm <linuxarm@huawei.com>
Subject: RE: [PATCH V6 0/9] Add architecture agnostic code to support vCPU Hotplug
Date: Fri, 27 Oct 2023 10:23:45 +0000 [thread overview]
Message-ID: <6a3f5229dccc497a96bd5db405a27fcb@huawei.com> (raw)
Message-ID: <20231027102345.7kk88gtEjGsK6DEvpRfSWGzji6rdHAqFPoAOaghXu9M@z> (raw)
In-Reply-To: <20231026144103.565a9566@imammedo.users.ipa.redhat.com>
Hi Igor,
> From: Igor Mammedov <imammedo@redhat.com>
> Sent: Thursday, October 26, 2023 1:41 PM
> To: Salil Mehta <salil.mehta@huawei.com>
> Cc: qemu-devel@nongnu.org; qemu-arm@nongnu.org; maz@kernel.org; jean-
> philippe@linaro.org; Jonathan Cameron <jonathan.cameron@huawei.com>;
> lpieralisi@kernel.org; peter.maydell@linaro.org;
> richard.henderson@linaro.org; andrew.jones@linux.dev; david@redhat.com;
> philmd@linaro.org; eric.auger@redhat.com; oliver.upton@linux.dev;
> pbonzini@redhat.com; mst@redhat.com; will@kernel.org; gshan@redhat.com;
> rafael@kernel.org; alex.bennee@linaro.org; linux@armlinux.org.uk;
> darren@os.amperecomputing.com; ilkka@os.amperecomputing.com;
> vishnu@os.amperecomputing.com; karl.heubaum@oracle.com;
> miguel.luis@oracle.com; salil.mehta@opnsrc.net; zhukeqian
> <zhukeqian1@huawei.com>; wangxiongfeng (C) <wangxiongfeng2@huawei.com>;
> wangyanan (Y) <wangyanan55@huawei.com>; jiakernel2@gmail.com;
> maobibo@loongson.cn; lixianglai@loongson.cn; Linuxarm <linuxarm@huawei.com>
> Subject: Re: [PATCH V6 0/9] Add architecture agnostic code to support vCPU
> Hotplug
>
> On Fri, 13 Oct 2023 11:51:20 +0100
> Salil Mehta <salil.mehta@huawei.com> wrote:
>
> > Virtual CPU hotplug support is being added across various
> architectures[1][3].
> > This series adds various code bits common across all architectures:
> >
> > 1. vCPU creation and Parking code refactor [Patch 1]
> > 2. Update ACPI GED framework to support vCPU Hotplug [Patch 4,6,7]
> > 3. ACPI CPUs AML code change [Patch 5]
> > 4. Helper functions to support unrealization of CPU objects [Patch 8,9]
> > 5. Misc [Patch 2,3]
>
> Thanks Salil!
>
> Overall series looks good to me (modulo some points, I'd like to be addressed)
> I'll do some testing and follow with per patch review tomorrow.
Many thanks! that would be helpful.
Meanwhile, I am preparing the V7 version of this to address the x86/microvm
qtest break reported by Miguel.
https://lore.kernel.org/qemu-devel/51B6C120-3707-4730-AE14-0F5CD32DC984@oracle.com/
Solution suggested here:
https://lore.kernel.org/qemu-devel/15e70616-6abb-63a4-17d0-820f4a254607@opnsrc.net/T/#m108f102b2fe92b7dd7218f2f942f7b233a9d6af3
cheers
Salil.
> > Repository:
> >
> > [*] https://github.com/salil-mehta/qemu.git virt-cpuhp-armv8/rfc-v2.common.v6
> >
> >
> > Revision History:
> >
> > Patch-set V5 -> V6
> > 1. Addressed Gavin Shan's comments
> > - Fixed the assert() ranges of address spaces
> > - Rebased the patch-set to latest changes in the qemu.git
> > - Added Reviewed-by tags for patches {8,9}
> > 2. Addressed Jonathan Cameron's comments
> > - Updated commit-log for [Patch V5 1/9] with mention of trace events
> > - Added Reviewed-by tags for patches {1,5}
> > 3. Added Tested-by tags from Xianglai Li
> > 4. Fixed checkpatch.pl error "Qemu -> QEMU" in [Patch V5 1/9]
> > Link: https://lore.kernel.org/qemu-devel/20231011194355.15628-1-salil.mehta@huawei.com/
> >
> > Patch-set V4 -> V5
> > 1. Addressed Gavin Shan's comments
> > - Fixed the trace events print string for kvm_{create,get,park,destroy}_vcpu
> > - Added Reviewed-by tag for patch {1}
> > 2. Added Shaoqin Huang's Reviewed-by tags for Patches {2,3}
> > 3. Added Tested-by Tag from Vishnu Pajjuri to the patch-set
> > 4. Dropped the ARM specific [Patch V4 10/10]
> > Link: https://lore.kernel.org/qemu-devel/20231009203601.17584-1-salil.mehta@huawei.com/
> >
> > Patch-set V3 -> V4
> > 1. Addressed David Hilderbrand's comments
> > - Fixed the wrong doc comment of kvm_park_vcpu API prototype
> > - Added Reviewed-by tags for patches {2,4}
> > Link: https://lore.kernel.org/qemu-devel/20231009112812.10612-1-salil.mehta@huawei.com/
> >
> > Patch-set V2 -> V3
> > 1. Addressed Jonathan Cameron's comments
> > - Fixed 'vcpu-id' type wrongly changed from 'unsigned long' to 'integer'
> > - Removed unnecessary use of variable 'vcpu_id' in kvm_park_vcpu
> > - Updated [Patch V2 3/10] commit-log with details of ACPI_CPU_SCAN_METHOD macro
> > - Updated [Patch V2 5/10] commit-log with details of conditional event handler method
> > - Added Reviewed-by tags for patches {2,3,4,6,7}
> > 2. Addressed Gavin Shan's comments
> > - Remove unnecessary use of variable 'vcpu_id' in kvm_par_vcpu
> > - Fixed return value in kvm_get_vcpu from -1 to -ENOENT
> > - Reset the value of 'gdb_num_g_regs' in gdb_unregister_coprocessor_all
> > - Fixed the kvm_{create,park}_vcpu prototypes docs
> > - Added Reviewed-by tags for patches {2,3,4,5,6,7,9,10}
> > 3. Addressed one earlier missed comment by Alex Bennée in RFC V1
> > - Added traces instead of DPRINTF in the newly added and some existing functions
> > Link: https://lore.kernel.org/qemu-devel/20230930001933.2660-1- salil.mehta@huawei.com/
> >
> > Patch-set V1 -> V2
> > 1. Addressed Alex Bennée's comments
> > - Refactored the kvm_create_vcpu logic to get rid of goto
> > - Added the docs for kvm_{create,park}_vcpu prototypes
> > - Splitted the gdbstub and AddressSpace destruction change into separate patches
> > - Added Reviewed-by tags for patches {2,10}
> > Link: https://lore.kernel.org/qemu-devel/20230929124304.13672-1-salil.mehta@huawei.com/
> >
> > References:
> >
> > [1] https://lore.kernel.org/qemu-devel/20230926100436.28284-1-salil.mehta@huawei.com/
> > [2] https://lore.kernel.org/all/20230913163823.7880-1-james.morse@arm.com/
> > [3] https://lore.kernel.org/qemu-devel/cover.1695697701.git.lixianglai@loongson.cn/
> >
> >
> > Salil Mehta (9):
> > accel/kvm: Extract common KVM vCPU {creation,parking} code
> > hw/acpi: Move CPU ctrl-dev MMIO region len macro to common header file
> > hw/acpi: Add ACPI CPU hotplug init stub
> > hw/acpi: Init GED framework with CPU hotplug events
> > hw/acpi: Update CPUs AML with cpu-(ctrl)dev change
> > hw/acpi: Update GED _EVT method AML with CPU scan
> > hw/acpi: Update ACPI GED framework to support vCPU Hotplug
> > physmem: Add helper function to destroy CPU AddressSpace
> > gdbstub: Add helper function to unregister GDB register space
> >
> > accel/kvm/kvm-all.c | 64 ++++++++++++++++++++------
> > accel/kvm/trace-events | 4 ++
> > gdbstub/gdbstub.c | 12 +++++
> > hw/acpi/acpi-cpu-hotplug-stub.c | 6 +++
> > hw/acpi/cpu.c | 27 +++++++----
> > hw/acpi/generic_event_device.c | 22 +++++++++
> > hw/i386/acpi-build.c | 3 +-
> > include/exec/cpu-common.h | 8 ++++
> > include/exec/gdbstub.h | 5 ++
> > include/hw/acpi/cpu.h | 5 +-
> > include/hw/acpi/cpu_hotplug.h | 4 ++
> > include/hw/acpi/generic_event_device.h | 5 ++
> > include/hw/core/cpu.h | 1 +
> > include/sysemu/kvm.h | 16 +++++++
> > system/physmem.c | 29 ++++++++++++
> > 15 files changed, 184 insertions(+), 27 deletions(-)
> >
next prev parent reply other threads:[~2023-10-27 10:23 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-13 10:51 [PATCH V6 0/9] Add architecture agnostic code to support vCPU Hotplug Salil Mehta via
2023-10-13 10:51 ` Salil Mehta
2023-10-13 10:51 ` [PATCH V6 1/9] accel/kvm: Extract common KVM vCPU {creation, parking} code Salil Mehta via
2023-10-13 10:51 ` Salil Mehta
2023-10-27 12:56 ` [PATCH V6 1/9] accel/kvm: Extract common KVM vCPU {creation,parking} code Igor Mammedov
2023-11-06 14:37 ` Salil Mehta via
2023-10-13 10:51 ` [PATCH V6 2/9] hw/acpi: Move CPU ctrl-dev MMIO region len macro to common header file Salil Mehta via
2023-10-13 10:51 ` Salil Mehta
2023-10-13 10:51 ` [PATCH V6 3/9] hw/acpi: Add ACPI CPU hotplug init stub Salil Mehta via
2023-10-13 10:51 ` Salil Mehta
2023-10-27 13:05 ` Igor Mammedov
2023-11-06 14:40 ` Salil Mehta via
2023-10-13 10:51 ` [PATCH V6 4/9] hw/acpi: Init GED framework with CPU hotplug events Salil Mehta via
2023-10-13 10:51 ` Salil Mehta
2023-10-19 10:16 ` Alex Bennée
2023-10-19 10:27 ` Salil Mehta via
2023-10-19 10:27 ` Salil Mehta
2023-10-27 14:08 ` Igor Mammedov
2023-11-13 17:36 ` Salil Mehta via
2023-10-13 10:51 ` [PATCH V6 5/9] hw/acpi: Update CPUs AML with cpu-(ctrl)dev change Salil Mehta via
2023-10-13 10:51 ` Salil Mehta
2023-10-27 13:46 ` Igor Mammedov
2023-11-13 17:45 ` Salil Mehta via
2023-10-13 10:51 ` [PATCH V6 6/9] hw/acpi: Update GED _EVT method AML with CPU scan Salil Mehta via
2023-10-13 10:51 ` Salil Mehta
2023-10-13 10:51 ` [PATCH V6 7/9] hw/acpi: Update ACPI GED framework to support vCPU Hotplug Salil Mehta via
2023-10-13 10:51 ` Salil Mehta
2023-10-27 13:18 ` Igor Mammedov
2023-11-08 10:58 ` Salil Mehta via
2023-10-13 10:51 ` [PATCH V6 8/9] physmem: Add helper function to destroy CPU AddressSpace Salil Mehta via
2023-10-13 10:51 ` Salil Mehta
2023-10-13 10:51 ` [PATCH V6 9/9] gdbstub: Add helper function to unregister GDB register space Salil Mehta via
2023-10-13 10:51 ` Salil Mehta
2023-10-13 16:33 ` [PATCH V6 0/9] Add architecture agnostic code to support vCPU Hotplug Miguel Luis
2023-10-16 9:52 ` Salil Mehta via
2023-10-16 9:52 ` Salil Mehta
2023-10-16 10:01 ` Miguel Luis
2023-10-16 10:09 ` Salil Mehta via
2023-10-16 10:09 ` Salil Mehta
2023-10-19 9:50 ` Miguel Luis
2023-10-19 9:04 ` Shaoqin Huang
2023-10-19 9:34 ` Salil Mehta via
2023-10-19 9:34 ` Salil Mehta
2023-10-20 3:30 ` Shaoqin Huang
2023-10-26 12:41 ` Igor Mammedov
2023-10-27 10:23 ` Salil Mehta via [this message]
2023-10-27 10:23 ` Salil Mehta
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