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| author | Philippe Mathieu-Daudé | 2020-11-30 11:13:01 +0100 |
|---|---|---|
| committer | Philippe Mathieu-Daudé | 2020-12-13 19:58:54 +0100 |
| commit | 7d6f01a12be534ce2ffaf0aa8741e5f5efca2362 (patch) | |
| tree | 2f48e4b400ce240f1b1dffceb06674663b35fc37 | |
| parent | target/mips: Also display exception names in user-mode (diff) | |
| download | qemu-7d6f01a12be534ce2ffaf0aa8741e5f5efca2362.tar.gz qemu-7d6f01a12be534ce2ffaf0aa8741e5f5efca2362.tar.xz qemu-7d6f01a12be534ce2ffaf0aa8741e5f5efca2362.zip | |
target/mips: Allow executing MSA instructions on Loongson-3A4000
The Loongson-3A4000 is a GS464V-based processor with MIPS MSA ASE:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg763059.html
Commit af868995e1b correctly set the 'MSA present' bit of Config3
register, but forgot to allow the MSA instructions decoding in
insn_flags, so executing them triggers a 'Reserved Instruction'.
Fix by adding the ASE_MSA mask to insn_flags.
Fixes: af868995e1b ("target/mips: Add Loongson-3 CPU definition")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <20201130102228.2395100-1-f4bug@amsat.org>
| -rw-r--r-- | target/mips/translate_init.c.inc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/target/mips/translate_init.c.inc b/target/mips/translate_init.c.inc index ea85d5c6a7..79f75ed863 100644 --- a/target/mips/translate_init.c.inc +++ b/target/mips/translate_init.c.inc @@ -832,7 +832,7 @@ const mips_def_t mips_defs[] = .mmu_type = MMU_TYPE_R4000, }, { - .name = "Loongson-3A4000", + .name = "Loongson-3A4000", /* GS464V-based */ .CP0_PRid = 0x14C000, /* 64KB I-cache and d-cache. 4 way with 32 bit cache line size. */ .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | (0x2 << CP0C0_AT) | @@ -885,7 +885,7 @@ const mips_def_t mips_defs[] = .CP1_fcr31_rw_bitmask = 0xFF83FFFF, .SEGBITS = 48, .PABITS = 48, - .insn_flags = CPU_LOONGSON3A, + .insn_flags = CPU_LOONGSON3A | ASE_MSA, .mmu_type = MMU_TYPE_R4000, }, { |