Julien Thierry e2cabc0720 KVM: arm64: pmu: Make overflow handler NMI safe ... commit 95e92e45a4 upstream. kvm_vcpu_kick() is not NMI safe. When the overflow handler is called from NMI context, defer waking the vcpu to an irq_work queue. A vcpu can be freed while it's not running by kvm_destroy_vm(). Prevent running the irq_work for a non-existent vcpu by calling irq_work_sync() on the PMU destroy path. [Alexandru E.: Added irq_work_sync()] Signed-off-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com> Tested-by: Sumit Garg <sumit.garg@linaro.org> (Developerbox) Cc: Julien Thierry <julien.thierry.kdev@gmail.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: James Morse <james.morse@arm.com> Cc: Suzuki K Pouloze <suzuki.poulose@arm.com> Cc: kvm@vger.kernel.org Cc: kvmarm@lists.cs.columbia.edu Link: https://lore.kernel.org/r/20200924110706.254996-6-alexandru.elisei@arm.com Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: huwentao <huwentao19@h-partners.com>		2024-11-05 17:04:08 +08:00
..
arm	KVM: arm64: pmu: Make overflow handler NMI safe	2024-11-05 17:04:08 +08:00
Kconfig	KVM: polling: add architecture backend to disable polling	2019-04-26 09:08:17 +02:00
async_pf.c	tkernel: add base tlinux kernel interfaces	2024-06-11 20:09:33 +08:00
async_pf.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504	2019-06-19 17:09:56 +02:00
coalesced_mmio.c	tkernel: sync code to the same with tk4 pub/lts/0017-kabi	2024-06-12 13:13:20 +08:00
coalesced_mmio.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
eventfd.c	tkernel: sync code to the same with tk4 pub/lts/0017-kabi	2024-06-12 13:13:20 +08:00
irqchip.c	KVM/arm updates for 5.3	2019-07-11 15:14:16 +02:00
kvm_main.c	tkernel: sync code to the same with tk4 pub/lts/0017-kabi	2024-06-12 13:13:20 +08:00
vfio.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
vfio.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00