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[Qemu-devel] anybody using MMIO tracing?


From: Hollis Blanchard
Subject: [Qemu-devel] anybody using MMIO tracing?
Date: Mon, 2 Nov 2015 09:18:03 -0800
User-agent: Mozilla/5.0 (X11; Linux i686; rv:38.0) Gecko/20100101 Thunderbird/38.3.0

I'm trying to use the memory_region_ops_read/write tracepoints. They produce output like this:
memory_region_ops_write 0.000 pid=8861 mr=0x185b1e8 addr=0x0 value=0x3 size=0x4
memory_region_ops_write 165.000 pid=8861 mr=0x185b1e8 addr=0x80 value=0xffffffff size=0x4
memory_region_ops_write 155.000 pid=8861 mr=0x1914240 addr=0x0 value=0x3 size=0x4
memory_region_ops_write 2.000 pid=8861 mr=0x185b320 addr=0x0 value=0x3 size=0x4
memory_region_ops_write 134.000 pid=8861 mr=0x1914240 addr=0x4 value=0x80 size=0x4
How do I discover which devices are represented by MemoryRegions 0x185b1e8 and 0x1914240? Or alternatively how do I discover the full addresses? Thanks.

--
Hollis Blanchard
Mentor Graphics Emulation Division


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