8cd0e66353
This bug is probably lurking there for so long, I cannot even git-blame my way to the commit first introducing it. Anyway, because n32 is also TARGET_MIPS64, the address space range cannot be determined by looking at TARGET_MIPS64 alone. Fix this by only declaring 48-bit address spaces for n64, or the n32 user emulation will happily hand out memory ranges beyond the 31-bit limit and crash. Confirmed to make the minimal reproducing example in the linked issue behave. Closes: https://gitlab.com/qemu-project/qemu/-/issues/939 Cc: Philippe Mathieu-Daudé <f4bug@amsat.org> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Aleksandar Rikalo <aleksandar.rikalo@syrmia.com> Signed-off-by: WANG Xuerui <xen0n@gentoo.org> Tested-by: Andreas K. Huettel <dilfridge@gentoo.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220328035942.3299661-1-xen0n@gentoo.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
35 lines
662 B
C
35 lines
662 B
C
/*
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* MIPS cpu parameters for qemu.
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*
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* SPDX-License-Identifier: LGPL-2.0+
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*/
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#ifndef MIPS_CPU_PARAM_H
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#define MIPS_CPU_PARAM_H 1
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#ifdef TARGET_MIPS64
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# define TARGET_LONG_BITS 64
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#else
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# define TARGET_LONG_BITS 32
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#endif
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#ifdef TARGET_ABI_MIPSN64
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#define TARGET_PHYS_ADDR_SPACE_BITS 48
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#define TARGET_VIRT_ADDR_SPACE_BITS 48
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#else
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#define TARGET_PHYS_ADDR_SPACE_BITS 40
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# ifdef CONFIG_USER_ONLY
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# define TARGET_VIRT_ADDR_SPACE_BITS 31
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# else
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# define TARGET_VIRT_ADDR_SPACE_BITS 32
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#endif
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#endif
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#ifdef CONFIG_USER_ONLY
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#define TARGET_PAGE_BITS 12
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#else
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#define TARGET_PAGE_BITS_VARY
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#define TARGET_PAGE_BITS_MIN 12
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#endif
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#define NB_MMU_MODES 4
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#endif
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