85d8da3fea
Move sysemu-specific files under the new sysemu/ subfolder and adapt the Meson machinery. Update the KVM MIPS entry in MAINTAINERS. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-17-f4bug@amsat.org>
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/*
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* QEMU MIPS address translation support
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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 "cpu.h"
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static int mips_um_ksegs;
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uint64_t cpu_mips_kseg0_to_phys(void *opaque, uint64_t addr)
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{
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return addr & 0x1fffffffll;
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}
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uint64_t cpu_mips_phys_to_kseg0(void *opaque, uint64_t addr)
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{
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return addr | ~0x7fffffffll;
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}
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uint64_t cpu_mips_kvm_um_phys_to_kseg0(void *opaque, uint64_t addr)
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{
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return addr | 0x40000000ll;
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}
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uint64_t cpu_mips_kseg1_to_phys(void *opaque, uint64_t addr)
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{
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return addr & 0x1fffffffll;
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}
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uint64_t cpu_mips_phys_to_kseg1(void *opaque, uint64_t addr)
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{
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return (addr & 0x1fffffffll) | 0xffffffffa0000000ll;
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}
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bool mips_um_ksegs_enabled(void)
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{
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return mips_um_ksegs;
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}
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void mips_um_ksegs_enable(void)
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{
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mips_um_ksegs = 1;
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}
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