b6a0aa0537
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453832250-766-11-git-send-email-peter.maydell@linaro.org
71 lines
2.8 KiB
C
71 lines
2.8 KiB
C
/*
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* QEMU Smram/pam logic implementation
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*
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* Copyright (c) 2006 Fabrice Bellard
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* Copyright (c) 2011 Isaku Yamahata <yamahata at valinux co jp>
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* VA Linux Systems Japan K.K.
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* Copyright (c) 2012 Jason Baron <jbaron@redhat.com>
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*
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* Split out from piix.c
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qom/object.h"
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#include "sysemu/sysemu.h"
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#include "hw/pci-host/pam.h"
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void init_pam(DeviceState *dev, MemoryRegion *ram_memory,
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MemoryRegion *system_memory, MemoryRegion *pci_address_space,
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PAMMemoryRegion *mem, uint32_t start, uint32_t size)
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{
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int i;
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/* RAM */
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memory_region_init_alias(&mem->alias[3], OBJECT(dev), "pam-ram", ram_memory,
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start, size);
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/* ROM (XXX: not quite correct) */
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memory_region_init_alias(&mem->alias[1], OBJECT(dev), "pam-rom", ram_memory,
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start, size);
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memory_region_set_readonly(&mem->alias[1], true);
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/* XXX: should distinguish read/write cases */
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memory_region_init_alias(&mem->alias[0], OBJECT(dev), "pam-pci", pci_address_space,
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start, size);
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memory_region_init_alias(&mem->alias[2], OBJECT(dev), "pam-pci", ram_memory,
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start, size);
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for (i = 0; i < 4; ++i) {
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memory_region_set_enabled(&mem->alias[i], false);
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memory_region_add_subregion_overlap(system_memory, start,
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&mem->alias[i], 1);
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}
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mem->current = 0;
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}
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void pam_update(PAMMemoryRegion *pam, int idx, uint8_t val)
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{
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assert(0 <= idx && idx <= 12);
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memory_region_set_enabled(&pam->alias[pam->current], false);
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pam->current = (val >> ((!(idx & 1)) * 4)) & PAM_ATTR_MASK;
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memory_region_set_enabled(&pam->alias[pam->current], true);
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}
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