diff options
| author | lixinyu <precinct@mail.ustc.edu.cn> | 2020-04-11 20:46:12 +0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2020-04-12 14:07:07 -0700 |
| commit | a4e57084c16d5b0eff3651693fba04f26b30b551 (patch) | |
| tree | bbdef14b0cbc1fdc177addda6672d5e23fef76cf /tcg/mips | |
| parent | 17e1e49814096a3daaa8e5a73acd56a0f30bdc18 (diff) | |
| download | qemu-a4e57084c16d5b0eff3651693fba04f26b30b551.zip | |
tcg/mips: mips sync* encode error
OPC_SYNC_WMB, OPC_SYNC_MB, OPC_SYNC_ACQUIRE, OPC_SYNC_RELEASE and
OPC_SYNC_RMB have wrong encode. According to the mips manual,
their encode should be 'OPC_SYNC | 0x?? << 6' rather than
'OPC_SYNC | 0x?? << 5'. Wrong encode can lead illegal instruction
errors. These instructions often appear with multi-threaded
simulation.
Fixes: 6f0b99104a3 ("tcg/mips: Add support for fence")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: lixinyu <precinct@mail.ustc.edu.cn>
Message-Id: <20200411124612.12560-1-precinct@mail.ustc.edu.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/mips')
| -rw-r--r-- | tcg/mips/tcg-target.inc.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/tcg/mips/tcg-target.inc.c b/tcg/mips/tcg-target.inc.c index 1da663ce84..4d32ebc1df 100644 --- a/tcg/mips/tcg-target.inc.c +++ b/tcg/mips/tcg-target.inc.c @@ -404,11 +404,11 @@ typedef enum { /* MIPS r6 introduced names for weaker variants of SYNC. These are backward compatible to previous architecture revisions. */ - OPC_SYNC_WMB = OPC_SYNC | 0x04 << 5, - OPC_SYNC_MB = OPC_SYNC | 0x10 << 5, - OPC_SYNC_ACQUIRE = OPC_SYNC | 0x11 << 5, - OPC_SYNC_RELEASE = OPC_SYNC | 0x12 << 5, - OPC_SYNC_RMB = OPC_SYNC | 0x13 << 5, + OPC_SYNC_WMB = OPC_SYNC | 0x04 << 6, + OPC_SYNC_MB = OPC_SYNC | 0x10 << 6, + OPC_SYNC_ACQUIRE = OPC_SYNC | 0x11 << 6, + OPC_SYNC_RELEASE = OPC_SYNC | 0x12 << 6, + OPC_SYNC_RMB = OPC_SYNC | 0x13 << 6, /* Aliases for convenience. */ ALIAS_PADD = sizeof(void *) == 4 ? OPC_ADDU : OPC_DADDU, |