From: "Alex Bennée" <alex.bennee@linaro.org>
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@huawei.com,
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, 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,
zhukeqian1@huawei.com, wangxiongfeng2@huawei.com,
wangyanan55@huawei.com, jiakernel2@gmail.com,
maobibo@loongson.cn, lixianglai@loongson.cn, linuxarm@huawei.com
Subject: Re: [PATCH 9/9] target/arm/kvm: Write CPU state back to KVM on reset
Date: Fri, 29 Sep 2023 15:39:32 +0100 [thread overview]
Message-ID: <87pm21nivj.fsf@linaro.org> (raw)
In-Reply-To: <20230929124304.13672-10-salil.mehta@huawei.com>
Salil Mehta <salil.mehta@huawei.com> writes:
> From: Jean-Philippe Brucker <jean-philippe@linaro.org>
>
> When a KVM vCPU is reset following a PSCI CPU_ON call, its power state
> is not synchronized with KVM at the moment. Because the vCPU is not
> marked dirty, we miss the call to kvm_arch_put_registers() that writes
> to KVM's MP_STATE. Force mp_state synchronization.
>
> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
> Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Seems reasonable:
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
--
Alex Bennée
Virtualisation Tech Lead @ Linaro
next prev parent reply other threads:[~2023-09-29 14:39 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-29 12:42 [PATCH 0/9] Add architecture agnostic code to support vCPU Hotplug Salil Mehta
2023-09-29 12:42 ` Salil Mehta via
2023-09-29 12:42 ` [PATCH 1/9] accel/kvm: Extract common KVM vCPU {creation,parking} code Salil Mehta
2023-09-29 12:42 ` [PATCH 1/9] accel/kvm: Extract common KVM vCPU {creation, parking} code Salil Mehta via
2023-09-29 13:32 ` [PATCH 1/9] accel/kvm: Extract common KVM vCPU {creation,parking} code Alex Bennée
2023-09-29 15:22 ` Salil Mehta
2023-09-29 15:22 ` [PATCH 1/9] accel/kvm: Extract common KVM vCPU {creation, parking} code Salil Mehta via
2023-09-29 16:45 ` [PATCH 1/9] accel/kvm: Extract common KVM vCPU {creation,parking} code Alex Bennée
2023-09-29 12:42 ` [PATCH 2/9] hw/acpi: Move CPU ctrl-dev MMIO region len macro to common header file Salil Mehta
2023-09-29 12:42 ` Salil Mehta via
2023-09-29 14:03 ` Alex Bennée
2023-09-29 15:24 ` Salil Mehta
2023-09-29 15:24 ` Salil Mehta via
2023-09-29 12:42 ` [PATCH 3/9] hw/acpi: Add ACPI CPU hotplug init stub Salil Mehta
2023-09-29 12:42 ` Salil Mehta via
2023-09-29 14:27 ` Alex Bennée
2023-09-29 15:47 ` Salil Mehta
2023-09-29 15:47 ` Salil Mehta via
2023-10-02 6:11 ` Philippe Mathieu-Daudé
2023-09-29 12:42 ` [PATCH 4/9] hw/acpi: Init GED framework with cpu hotplug events Salil Mehta
2023-09-29 12:42 ` Salil Mehta via
2023-10-02 16:06 ` Jonathan Cameron
2023-10-02 16:06 ` Jonathan Cameron via
2023-10-03 10:24 ` Salil Mehta
2023-10-03 10:24 ` Salil Mehta via
2023-09-29 12:43 ` [PATCH 5/9] hw/acpi: Update CPUs AML with cpu-(ctrl)dev change Salil Mehta
2023-09-29 12:43 ` Salil Mehta via
2023-09-29 12:43 ` [PATCH 6/9] hw/acpi: Update GED _EVT method AML with cpu scan Salil Mehta
2023-09-29 12:43 ` Salil Mehta via
2023-09-29 12:43 ` [PATCH 7/9] hw/acpi: Update ACPI GED framework to support vCPU Hotplug Salil Mehta
2023-09-29 12:43 ` Salil Mehta via
2023-09-29 12:43 ` [PATCH 8/9] physmem,gdbstub: Add helper functions to help *unrealize* vCPU object Salil Mehta
2023-09-29 12:43 ` [PATCH 8/9] physmem, gdbstub: " Salil Mehta via
2023-09-29 14:34 ` [PATCH 8/9] physmem,gdbstub: " Alex Bennée
2023-09-29 16:00 ` Salil Mehta
2023-09-29 16:00 ` Salil Mehta via
2023-09-29 12:43 ` [PATCH 9/9] target/arm/kvm: Write CPU state back to KVM on reset Salil Mehta
2023-09-29 12:43 ` Salil Mehta via
2023-09-29 14:39 ` Alex Bennée [this message]
2023-09-29 16:01 ` Salil Mehta
2023-09-29 16:01 ` Salil Mehta via
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