mirror of https://gitee.com/openkylin/qemu.git
target-ppc: add extended opcodes for dcbt/dcbtst
The latest glibc provides a memrchr routine using an extended opcode of the 'dcbt' instruction : 00000000000a7cc0 <memrchr>: a7cc0: 11 00 4c 3c addis r2,r12,17 a7cc4: b8 f8 42 38 addi r2,r2,-1864 a7cc8: 14 2a e3 7c add r7,r3,r5 a7ccc: d0 00 07 7c neg r0,r7 a7cd0: ff ff e7 38 addi r7,r7,-1 a7cd4: 78 1b 6a 7c mr r10,r3 a7cd8: 24 06 e6 78 rldicr r6,r7,0,56 a7cdc: 60 00 20 39 li r9,96 a7ce0: 2c 32 09 7e dcbtt r9,r6 .... which breaks grep, and other commands, in TCG mode : invalid bits: 02000000 for opcode: 1f - 16 - 08 (7e09322c) 00003fff799feca0 This patch adds the extended opcodes for dcbt/dcbtst as no-ops just like the 'dcbt' instruction. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
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target-ppc
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@ -9596,8 +9596,8 @@ GEN_HANDLER(mtspr, 0x1F, 0x13, 0x0E, 0x00000001, PPC_MISC),
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GEN_HANDLER(dcbf, 0x1F, 0x16, 0x02, 0x03C00001, PPC_CACHE),
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GEN_HANDLER(dcbi, 0x1F, 0x16, 0x0E, 0x03E00001, PPC_CACHE),
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GEN_HANDLER(dcbst, 0x1F, 0x16, 0x01, 0x03E00001, PPC_CACHE),
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GEN_HANDLER(dcbt, 0x1F, 0x16, 0x08, 0x02000001, PPC_CACHE),
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GEN_HANDLER(dcbtst, 0x1F, 0x16, 0x07, 0x02000001, PPC_CACHE),
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GEN_HANDLER(dcbt, 0x1F, 0x16, 0x08, 0x00000001, PPC_CACHE),
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GEN_HANDLER(dcbtst, 0x1F, 0x16, 0x07, 0x00000001, PPC_CACHE),
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GEN_HANDLER(dcbz, 0x1F, 0x16, 0x1F, 0x03C00001, PPC_CACHE_DCBZ),
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GEN_HANDLER(dst, 0x1F, 0x16, 0x0A, 0x01800001, PPC_ALTIVEC),
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GEN_HANDLER(dstst, 0x1F, 0x16, 0x0B, 0x02000001, PPC_ALTIVEC),
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