From: Salil Mehta via <qemu-devel@nongnu.org> To: Jonathan Cameron <jonathan.cameron@huawei.com> Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>, "qemu-arm@nongnu.org" <qemu-arm@nongnu.org>, "maz@kernel.org" <maz@kernel.org>, "jean-philippe@linaro.org" <jean-philippe@linaro.org>, "lpieralisi@kernel.org" <lpieralisi@kernel.org>, "peter.maydell@linaro.org" <peter.maydell@linaro.org>, "richard.henderson@linaro.org" <richard.henderson@linaro.org>, "imammedo@redhat.com" <imammedo@redhat.com>, "andrew.jones@linux.dev" <andrew.jones@linux.dev>, "david@redhat.com" <david@redhat.com>, "philmd@linaro.org" <philmd@linaro.org>, "eric.auger@redhat.com" <eric.auger@redhat.com>, "oliver.upton@linux.dev" <oliver.upton@linux.dev>, "pbonzini@redhat.com" <pbonzini@redhat.com>, "mst@redhat.com" <mst@redhat.com>, "will@kernel.org" <will@kernel.org>, "gshan@redhat.com" <gshan@redhat.com>, "rafael@kernel.org" <rafael@kernel.org>, "alex.bennee@linaro.org" <alex.bennee@linaro.org>, "linux@armlinux.org.uk" <linux@armlinux.org.uk>, "darren@os.amperecomputing.com" <darren@os.amperecomputing.com>, "ilkka@os.amperecomputing.com" <ilkka@os.amperecomputing.com>, "vishnu@os.amperecomputing.com" <vishnu@os.amperecomputing.com>, "karl.heubaum@oracle.com" <karl.heubaum@oracle.com>, "miguel.luis@oracle.com" <miguel.luis@oracle.com>, "salil.mehta@opnsrc.net" <salil.mehta@opnsrc.net>, zhukeqian <zhukeqian1@huawei.com>, "wangxiongfeng (C)" <wangxiongfeng2@huawei.com>, "wangyanan (Y)" <wangyanan55@huawei.com>, "jiakernel2@gmail.com" <jiakernel2@gmail.com>, "maobibo@loongson.cn" <maobibo@loongson.cn>, "lixianglai@loongson.cn" <lixianglai@loongson.cn>, Linuxarm <linuxarm@huawei.com> Subject: RE: [PATCH V5 1/9] accel/kvm: Extract common KVM vCPU {creation,parking} code Date: Thu, 12 Oct 2023 14:38:43 +0000 [thread overview] Message-ID: <ff06c2f8c85948b3be5a9855086dd5cd@huawei.com> (raw) In-Reply-To: <20231012153625.00005025@Huawei.com> Hi Jonathan, > From: Jonathan Cameron <jonathan.cameron@huawei.com> > Sent: Thursday, October 12, 2023 3:36 PM > To: Salil Mehta <salil.mehta@huawei.com> > Cc: qemu-devel@nongnu.org; qemu-arm@nongnu.org; maz@kernel.org; jean- > philippe@linaro.org; lpieralisi@kernel.org; peter.maydell@linaro.org; > richard.henderson@linaro.org; imammedo@redhat.com; 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 V5 1/9] accel/kvm: Extract common KVM vCPU > {creation,parking} code > > On Wed, 11 Oct 2023 20:43:47 +0100 > Salil Mehta <salil.mehta@huawei.com> wrote: > > > KVM vCPU creation is done once during the initialization of the VM when > Qemu > > thread is spawned. This is common to all the architectures. > > > > Hot-unplug of vCPU results in destruction of the vCPU object in QOM but > the > > corresponding KVM vCPU object in the Host KVM is not destroyed and its > > representative KVM vCPU object/context in Qemu is parked. > > > > Refactor common logic so that some APIs could be reused by vCPU Hotplug code. > > If you are respinning I'd also call out that you added some trace points. Ok. Will do. Thanks > > Signed-off-by: Salil Mehta <salil.mehta@huawei.com> > > Reviewed-by: Gavin Shan <gshan@redhat.com> > > Tested-by: Vishnu Pajjuri <vishnu@os.amperecomputing.com> > Otherwise LGTM as it's a straight forward refactor. > > Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> >
WARNING: multiple messages have this Message-ID (diff)
From: Salil Mehta <salil.mehta@huawei.com> To: Jonathan Cameron <jonathan.cameron@huawei.com> Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>, "qemu-arm@nongnu.org" <qemu-arm@nongnu.org>, "maz@kernel.org" <maz@kernel.org>, "jean-philippe@linaro.org" <jean-philippe@linaro.org>, "lpieralisi@kernel.org" <lpieralisi@kernel.org>, "peter.maydell@linaro.org" <peter.maydell@linaro.org>, "richard.henderson@linaro.org" <richard.henderson@linaro.org>, "imammedo@redhat.com" <imammedo@redhat.com>, "andrew.jones@linux.dev" <andrew.jones@linux.dev>, "david@redhat.com" <david@redhat.com>, "philmd@linaro.org" <philmd@linaro.org>, "eric.auger@redhat.com" <eric.auger@redhat.com>, "oliver.upton@linux.dev" <oliver.upton@linux.dev>, "pbonzini@redhat.com" <pbonzini@redhat.com>, "mst@redhat.com" <mst@redhat.com>, "will@kernel.org" <will@kernel.org>, "gshan@redhat.com" <gshan@redhat.com>, "rafael@kernel.org" <rafael@kernel.org>, "alex.bennee@linaro.org" <alex.bennee@linaro.org>, "linux@armlinux.org.uk" <linux@armlinux.org.uk>, "darren@os.amperecomputing.com" <darren@os.amperecomputing.com>, "ilkka@os.amperecomputing.com" <ilkka@os.amperecomputing.com>, "vishnu@os.amperecomputing.com" <vishnu@os.amperecomputing.com>, "karl.heubaum@oracle.com" <karl.heubaum@oracle.com>, "miguel.luis@oracle.com" <miguel.luis@oracle.com>, "salil.mehta@opnsrc.net" <salil.mehta@opnsrc.net>, zhukeqian <zhukeqian1@huawei.com>, "wangxiongfeng (C)" <wangxiongfeng2@huawei.com>, "wangyanan (Y)" <wangyanan55@huawei.com>, "jiakernel2@gmail.com" <jiakernel2@gmail.com>, "maobibo@loongson.cn" <maobibo@loongson.cn>, "lixianglai@loongson.cn" <lixianglai@loongson.cn>, Linuxarm <linuxarm@huawei.com> Subject: RE: [PATCH V5 1/9] accel/kvm: Extract common KVM vCPU {creation,parking} code Date: Thu, 12 Oct 2023 14:38:43 +0000 [thread overview] Message-ID: <ff06c2f8c85948b3be5a9855086dd5cd@huawei.com> (raw) Message-ID: <20231012143843.UCZNjEV8BAyvJ8FPpXPyHNsmN3GcUJQV6LALB90JQ-4@z> (raw) In-Reply-To: <20231012153625.00005025@Huawei.com> Hi Jonathan, > From: Jonathan Cameron <jonathan.cameron@huawei.com> > Sent: Thursday, October 12, 2023 3:36 PM > To: Salil Mehta <salil.mehta@huawei.com> > Cc: qemu-devel@nongnu.org; qemu-arm@nongnu.org; maz@kernel.org; jean- > philippe@linaro.org; lpieralisi@kernel.org; peter.maydell@linaro.org; > richard.henderson@linaro.org; imammedo@redhat.com; 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 V5 1/9] accel/kvm: Extract common KVM vCPU > {creation,parking} code > > On Wed, 11 Oct 2023 20:43:47 +0100 > Salil Mehta <salil.mehta@huawei.com> wrote: > > > KVM vCPU creation is done once during the initialization of the VM when > Qemu > > thread is spawned. This is common to all the architectures. > > > > Hot-unplug of vCPU results in destruction of the vCPU object in QOM but > the > > corresponding KVM vCPU object in the Host KVM is not destroyed and its > > representative KVM vCPU object/context in Qemu is parked. > > > > Refactor common logic so that some APIs could be reused by vCPU Hotplug code. > > If you are respinning I'd also call out that you added some trace points. Ok. Will do. Thanks > > Signed-off-by: Salil Mehta <salil.mehta@huawei.com> > > Reviewed-by: Gavin Shan <gshan@redhat.com> > > Tested-by: Vishnu Pajjuri <vishnu@os.amperecomputing.com> > Otherwise LGTM as it's a straight forward refactor. > > Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> >
next prev parent reply other threads:[~2023-10-12 14:39 UTC|newest] Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-10-11 19:43 [PATCH V5 0/9] Add architecture agnostic code to support vCPU Hotplug Salil Mehta via 2023-10-11 19:43 ` Salil Mehta 2023-10-11 19:43 ` [PATCH V5 1/9] accel/kvm: Extract common KVM vCPU {creation, parking} code Salil Mehta via 2023-10-11 19:43 ` Salil Mehta 2023-10-12 14:36 ` [PATCH V5 1/9] accel/kvm: Extract common KVM vCPU {creation,parking} code Jonathan Cameron via 2023-10-12 14:36 ` Jonathan Cameron 2023-10-12 14:38 ` Salil Mehta via [this message] 2023-10-12 14:38 ` Salil Mehta 2023-10-16 2:45 ` [PATCH V5 1/9] accel/kvm: Extract common KVM vCPU {creation, parking} code Shaoqin Huang 2023-10-16 2:47 ` Shaoqin Huang 2023-10-11 19:43 ` [PATCH V5 2/9] hw/acpi: Move CPU ctrl-dev MMIO region len macro to common header file Salil Mehta via 2023-10-11 19:43 ` Salil Mehta 2023-10-11 19:43 ` [PATCH V5 3/9] hw/acpi: Add ACPI CPU hotplug init stub Salil Mehta via 2023-10-11 19:43 ` Salil Mehta 2023-10-11 19:43 ` [PATCH V5 4/9] hw/acpi: Init GED framework with CPU hotplug events Salil Mehta via 2023-10-11 19:43 ` Salil Mehta 2023-10-16 2:53 ` Shaoqin Huang 2023-10-16 10:01 ` Salil Mehta via 2023-10-16 10:01 ` Salil Mehta 2023-10-11 19:43 ` [PATCH V5 5/9] hw/acpi: Update CPUs AML with cpu-(ctrl)dev change Salil Mehta via 2023-10-11 19:43 ` Salil Mehta 2023-10-12 14:49 ` Jonathan Cameron via 2023-10-12 14:49 ` Jonathan Cameron 2023-10-11 19:43 ` [PATCH V5 6/9] hw/acpi: Update GED _EVT method AML with CPU scan Salil Mehta via 2023-10-11 19:43 ` Salil Mehta 2023-10-11 19:43 ` [PATCH V5 7/9] hw/acpi: Update ACPI GED framework to support vCPU Hotplug Salil Mehta via 2023-10-11 19:43 ` Salil Mehta 2023-10-11 19:43 ` [PATCH V5 8/9] physmem: Add helper function to destroy CPU AddressSpace Salil Mehta via 2023-10-11 19:43 ` Salil Mehta 2023-10-11 23:31 ` Gavin Shan 2023-10-12 0:04 ` Salil Mehta 2023-10-12 0:18 ` Gavin Shan 2023-10-12 9:22 ` Salil Mehta via 2023-10-12 9:22 ` Salil Mehta 2023-10-11 19:43 ` [PATCH V5 9/9] gdbstub: Add helper function to unregister GDB register space Salil Mehta via 2023-10-11 19:43 ` Salil Mehta 2023-10-12 0:07 ` Gavin Shan 2023-10-12 9:19 ` Salil Mehta via 2023-10-12 9:19 ` Salil Mehta 2023-10-13 3:58 ` [PATCH V5 0/9] Add architecture agnostic code to support vCPU Hotplug lixianglai 2023-10-13 10:21 ` Salil Mehta via 2023-10-13 10:21 ` Salil Mehta
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