[mirror_qemu.git] / target / hppa / mem_helper.c

/*
 *  HPPA memory access helper routines
 *
 *  Copyright (c) 2017 Helge Deller
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */

#include "qemu/osdep.h"
#include "cpu.h"
#include "exec/exec-all.h"
#include "exec/helper-proto.h"
#include "qom/cpu.h"

#ifdef CONFIG_USER_ONLY
int hppa_cpu_handle_mmu_fault(CPUState *cs, vaddr address,
                              int size, int rw, int mmu_idx)
{
    HPPACPU *cpu = HPPA_CPU(cs);

    cs->exception_index = EXCP_SIGSEGV;
    cpu->env.ior = address;
    return 1;
}
#else
hwaddr hppa_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
{
    /* Stub */
    return addr;
}

void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType type,
              int mmu_idx, uintptr_t retaddr)
{
    /* Stub */
    int prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
    hwaddr phys = addr;

    /* Success!  Store the translation into the QEMU TLB.  */
    tlb_set_page(cs, addr & TARGET_PAGE_MASK, phys & TARGET_PAGE_MASK,
                 prot, mmu_idx, TARGET_PAGE_SIZE);
}
#endif /* CONFIG_USER_ONLY */
Commit	Line	Data
813dff13 HD	1	/*
	2	* HPPA memory access helper routines
	3	*
	4	* Copyright (c) 2017 Helge Deller
	5	*
	6	* This library is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU Lesser General Public
	8	* License as published by the Free Software Foundation; either
	9	* version 2 of the License, or (at your option) any later version.
	10	*
	11	* This library is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* Lesser General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU Lesser General Public
	17	* License along with this library; if not, see <http://www.gnu.org/licenses/>.
	18	*/
	19
	20	#include "qemu/osdep.h"
	21	#include "cpu.h"
	22	#include "exec/exec-all.h"
	23	#include "exec/helper-proto.h"
	24	#include "qom/cpu.h"
	25
	26	#ifdef CONFIG_USER_ONLY
	27	int hppa_cpu_handle_mmu_fault(CPUState *cs, vaddr address,
	28	int size, int rw, int mmu_idx)
	29	{
	30	HPPACPU *cpu = HPPA_CPU(cs);
	31
	32	cs->exception_index = EXCP_SIGSEGV;
	33	cpu->env.ior = address;
	34	return 1;
	35	}
	36	#else
	37	hwaddr hppa_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
	38	{
	39	/* Stub */
	40	return addr;
	41	}
	42
	43	void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType type,
	44	int mmu_idx, uintptr_t retaddr)
	45	{
	46	/* Stub */
	47	int prot = PAGE_READ \| PAGE_WRITE \| PAGE_EXEC;
	48	hwaddr phys = addr;
	49
	50	/* Success! Store the translation into the QEMU TLB. */
	51	tlb_set_page(cs, addr & TARGET_PAGE_MASK, phys & TARGET_PAGE_MASK,
	52	prot, mmu_idx, TARGET_PAGE_SIZE);
	53	}
	54	#endif /* CONFIG_USER_ONLY */