On Thu, 23 Mar 2023 16:22:38 +0530 Chaitanya S Prakash chaitanyas.prakash@arm.com wrote:
The va_128TBswitch selftest is designed and implemented for PowerPC and x86 architectures which support a 128TB switch, up to 256TB of virtual address space and hugepage sizes of 16MB and 2MB respectively. Arm64 platforms on the other hand support a 256Tb switch, up to 4PB of virtual address space and a default hugepage size of 512MB when 64k pagesize is enabled.
These architectural differences require introducing support for arm64 platforms, after which a more generic naming convention is suggested. The in code comments are amended to provide a more platform independent explanation of the working of the code and nr_hugepages are configured as required. Finally, the file running the testcase is modified in order to prevent skipping of hugetlb testcases of va_high_addr_switch.
This series has been tested on 6.3.0-rc3 kernel, both on arm64 and x86 platforms.
Would it make sense to get this series into the ARM tree, so it sees more testing on ARM?