Morello instruction tracing nops #257
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A previous merge moved the tcg cflags logic to the tcg_cpu_init_cflags function. This is only called when a vcpu is started to precompute cflags. In order to ensure that TB cflags are compared correctly, curr_cflags must set CF_LOG_INSTR dynamically.
Use the hlt instruction with a custom set of immediates to issue tracing commands. This mirrors the behaviour of the ARM FVP Tarmac trace plugin, which uses the hlt instruction with configurable immediate values to start and stop tracing. Introduce the following hlt immediates: - 0xff00: start instruction tracing - 0xff01: stop instruction tracing - 0xff02: start user-mode instruction tracing
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arichardson
approved these changes
Jul 29, 2024
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