8e13b376b0
This commit addresses several multiprocessing issues in base-hw: * it reworks cross-cpu maintainance work for TLB invalidation by introducing a generic Inter_processor_work and removes the so called Cpu_domain_update * thereby it solves the cross-cpu thread destruction, when the corresponding thread is active on another cpu (fix #3043) * it adds the missing TLB shootdown for x86 (fix #3042) * on ARM it removes the TLB shootdown via IPIs, because this is not needed on the multiprocessing ARM platforms we support * it enables the per-cpu initialization of the kernel's cpu objects, which means those object initialization is executed by the proper cpu * it rollbacks prior decision to make multiprocessing an aspect, but puts back certain 'smp' mechanisms (like cross-cpu lock) into the generic code base for simplicity reasons
30 lines
644 B
C++
30 lines
644 B
C++
/*
|
|
* \brief Kernel PD object implementations specific to ARM
|
|
* \author Stefan Kalkowski
|
|
* \date 2018-11-22
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2018 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU Affero General Public License version 3.
|
|
*/
|
|
|
|
#include <kernel/cpu.h>
|
|
#include <kernel/pd.h>
|
|
|
|
bool Kernel::Pd::update(Cpu & cpu)
|
|
{
|
|
/* invalidate the TLB on the local CPU only */
|
|
if (cpu.id() == Cpu::executing_id()) {
|
|
Cpu::invalidate_tlb(mmu_regs.id());
|
|
}
|
|
|
|
/*
|
|
* on all SMP ARM platforms we support the TLB can be maintained
|
|
* cross-cpu coherently
|
|
*/
|
|
return false;
|
|
}
|