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[PATCH] target/mips: Fix address space range declaration on n32
From: |
WANG Xuerui |
Subject: |
[PATCH] target/mips: Fix address space range declaration on n32 |
Date: |
Sun, 27 Mar 2022 13:34:55 +0800 |
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
Signed-off-by: WANG Xuerui <xen0n@gentoo.org>
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>
Cc: Andreas K. Hüttel <dilfridge@gentoo.org>
---
target/mips/cpu-param.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/mips/cpu-param.h b/target/mips/cpu-param.h
index 9c4a6ea45e2..1aebd01df9c 100644
--- a/target/mips/cpu-param.h
+++ b/target/mips/cpu-param.h
@@ -12,7 +12,7 @@
#else
# define TARGET_LONG_BITS 32
#endif
-#ifdef TARGET_MIPS64
+#ifdef TARGET_ABI_MIPSN64
#define TARGET_PHYS_ADDR_SPACE_BITS 48
#define TARGET_VIRT_ADDR_SPACE_BITS 48
#else
--
2.35.1
- [PATCH] target/mips: Fix address space range declaration on n32,
WANG Xuerui <=