Mark Rutland f8049488e7 arm64: entry: add a call_on_irq_stack helper ... When handling IRQ/FIQ exceptions the entry assembly may transition from a task's stack to a CPU's IRQ stack (and IRQ shadow call stack). In subsequent patches we want to migrate the IRQ/FIQ triage logic to C, and as we want to perform some actions on the task stack (e.g. EL1 preemption), we need to switch stacks within the C handler. So that we can do so, this patch adds a helper to call a function on a CPU's IRQ stack (and shadow stack as appropriate). Subsequent patches will make use of the new helper function. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Marc Zyngier <maz@kernel.org> Cc: James Morse <james.morse@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20210607094624.34689-7-mark.rutland@arm.com Signed-off-by: Will Deacon <will@kernel.org>		2021-06-07 11:35:55 +01:00
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asm	arm64: entry: add a call_on_irq_stack helper	2021-06-07 11:35:55 +01:00
uapi/asm	KVM: arm64: Move 'struct kvm_arch_memory_slot' out of uapi/	2020-11-27 18:59:05 +00:00