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| author | Max Filippov <jcmvbkbc@gmail.com> | 2020-08-29 03:47:58 -0700 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2020-10-26 12:07:19 +0100 |
| commit | ab97f0505bec6280c5455009b7678daf5c9278bc (patch) | |
| tree | c803338253b1cfba0ab39cc99c447dfe736d3080 | |
| parent | e554eb4bb56395b1e3b7042dc6974dc87de3f4d1 (diff) | |
| download | qemu-ab97f0505bec6280c5455009b7678daf5c9278bc.zip qemu-ab97f0505bec6280c5455009b7678daf5c9278bc.tar.gz qemu-ab97f0505bec6280c5455009b7678daf5c9278bc.tar.bz2 | |
target/xtensa: enable all coprocessors for linux-user
Linux userspace always sees coprocessors as enabled. CPENABLE register
and coprocessor exceptions are used internally by the kernel to manage
lazy coprocessor context switch. None of it is needed for linux-user.
Always enable all coprocessors for user emulation.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200829104758.22337-1-jcmvbkbc@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| -rw-r--r-- | target/xtensa/cpu.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c index 6a033e7..88a3226 100644 --- a/target/xtensa/cpu.c +++ b/target/xtensa/cpu.c @@ -93,6 +93,7 @@ static void xtensa_cpu_reset(DeviceState *dev) !xtensa_abi_call0()) { env->sregs[PS] |= PS_WOE; } + env->sregs[CPENABLE] = 0xff; #endif env->sregs[VECBASE] = env->config->vecbase; env->sregs[IBREAKENABLE] = 0; |