Hi guys!
My program is like below.There are two “store” operation in it, one
stores “a" into log region, the other stores “a” into normal region.
“
Int main(){
char* log = malloc(1G);
writeLog(a);
write(a);
}
”
Now I want gem5 to distinguish writes toward two regions(log region and data
region). And I think of two ways to achieve this.
One is to let gem5 memory controller differentiate write requests which is
toward log region from those that is toward normal region.
I want to use pkt->adds() to achieve distinguish. However, I don't know how to
let gem5 know the start address of the log region (in program I could only see
virtual address, while memory controller sees physical address.)
The other is to split memory range into two region(a log region and a data
region). I found in source code gem5 simulates physical memory by “pmem =
mmap(range.size()). Are there any method to let program knows which memory
region is log region.Then I could store into log region in my program.
Thanks a lot.
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