Query Regarding memory alignment /access

Vishwas Srivastava vishu.kernel at gmail.com
Mon Feb 1 04:47:59 EST 2016

Hi All,

            I have  2 questions regarding memory access/alignment
1: can aligned/unaligned virtual address could translate to
unaligned/aligned physical address ? or
 aligned virtual --- > aligned phy and unaligned virtual --- > unaligned
phy ??
2: Since the cpu access the memory in word size, for a large buffer, (say
size N bytes where N > wordsize) isn't it sufficient for buffer to be
properly aligned if its address % WORD_SIZE == 0? rather than address % N
== 0  check?? since cpu, anyways will not access more than word size at a
time so any address which is divisible by wordsize is by default properly

Please share your inputs.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20160201/301adbef/attachment.html 

More information about the Kernelnewbies mailing list