2015-02-06 17:29:30 +01:00
|
|
|
/*
|
2015-08-24 15:35:54 +02:00
|
|
|
* \brief Kernel back-end for execution contexts in userland
|
2015-02-06 17:29:30 +01:00
|
|
|
* \author Martin Stein
|
2015-03-13 09:20:28 +01:00
|
|
|
* \author Reto Buerki
|
2015-02-06 17:29:30 +01:00
|
|
|
* \author Stefan Kalkowski
|
|
|
|
* \date 2013-11-11
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
2017-02-20 13:23:52 +01:00
|
|
|
* Copyright (C) 2013-2017 Genode Labs GmbH
|
2015-02-06 17:29:30 +01:00
|
|
|
*
|
|
|
|
* This file is part of the Genode OS framework, which is distributed
|
2017-02-20 13:23:52 +01:00
|
|
|
* under the terms of the GNU Affero General Public License version 3.
|
2015-02-06 17:29:30 +01:00
|
|
|
*/
|
|
|
|
|
|
|
|
/* core includes */
|
2017-10-06 12:02:36 +02:00
|
|
|
#include <kernel/cpu.h>
|
2015-02-06 17:29:30 +01:00
|
|
|
#include <kernel/thread.h>
|
|
|
|
#include <kernel/pd.h>
|
|
|
|
|
2016-09-22 11:53:09 +02:00
|
|
|
|
|
|
|
void Kernel::Thread::_call_update_data_region() { }
|
|
|
|
|
|
|
|
|
|
|
|
void Kernel::Thread::_call_update_instr_region() { }
|
|
|
|
|
|
|
|
|
2017-11-08 15:17:15 +01:00
|
|
|
void Kernel::Thread::_call_update_pd() {
|
|
|
|
Genode::Cpu::Cr3::write(Genode::Cpu::Cr3::read());
|
|
|
|
}
|
2017-06-30 12:00:27 +02:00
|
|
|
|
|
|
|
|
|
|
|
extern void * __tss_client_context_ptr;
|
|
|
|
|
2017-10-06 12:02:36 +02:00
|
|
|
void Kernel::Thread::proceed(Cpu & cpu)
|
2017-06-30 12:00:27 +02:00
|
|
|
{
|
|
|
|
void * * tss_stack_ptr = (&__tss_client_context_ptr);
|
2017-10-06 12:02:36 +02:00
|
|
|
*tss_stack_ptr = (void*)((addr_t)&*regs + sizeof(Genode::Cpu_state));
|
|
|
|
|
|
|
|
cpu.switch_to(*regs, pd()->mmu_regs);
|
2017-06-30 12:00:27 +02:00
|
|
|
|
|
|
|
asm volatile("mov %0, %%rsp \n"
|
|
|
|
"popq %%r8 \n"
|
|
|
|
"popq %%r9 \n"
|
|
|
|
"popq %%r10 \n"
|
|
|
|
"popq %%r11 \n"
|
|
|
|
"popq %%r12 \n"
|
|
|
|
"popq %%r13 \n"
|
|
|
|
"popq %%r14 \n"
|
|
|
|
"popq %%r15 \n"
|
|
|
|
"popq %%rax \n"
|
|
|
|
"popq %%rbx \n"
|
|
|
|
"popq %%rcx \n"
|
|
|
|
"popq %%rdx \n"
|
|
|
|
"popq %%rdi \n"
|
|
|
|
"popq %%rsi \n"
|
|
|
|
"popq %%rbp \n"
|
|
|
|
"add $16, %%rsp \n"
|
|
|
|
"iretq \n" :: "r" (®s->r8));
|
|
|
|
}
|
2017-10-06 12:02:36 +02:00
|
|
|
|
|
|
|
|
|
|
|
void Kernel::Thread::user_arg_0(Kernel::Call_arg const arg) { regs->rdi = arg; }
|
|
|
|
void Kernel::Thread::user_arg_1(Kernel::Call_arg const arg) { regs->rsi = arg; }
|
|
|
|
void Kernel::Thread::user_arg_2(Kernel::Call_arg const arg) { regs->rdx = arg; }
|
|
|
|
void Kernel::Thread::user_arg_3(Kernel::Call_arg const arg) { regs->rcx = arg; }
|
|
|
|
void Kernel::Thread::user_arg_4(Kernel::Call_arg const arg) { regs->r8 = arg; }
|
|
|
|
|
|
|
|
Kernel::Call_arg Kernel::Thread::user_arg_0() const { return regs->rdi; }
|
|
|
|
Kernel::Call_arg Kernel::Thread::user_arg_1() const { return regs->rsi; }
|
|
|
|
Kernel::Call_arg Kernel::Thread::user_arg_2() const { return regs->rdx; }
|
|
|
|
Kernel::Call_arg Kernel::Thread::user_arg_3() const { return regs->rcx; }
|
|
|
|
Kernel::Call_arg Kernel::Thread::user_arg_4() const { return regs->r8; }
|