[PATCH 0/3] Use FEAT_HAFDBS to track dirty pages

For some ARM64 cores there is a facility that allows the page table walker to track the dirty state of a page. These commits enhances the performance of CMOs by VA.

Marc Zyngier (2): arm64: Use FEAT_HAFDBS to track dirty pages when available arm64: Use level-2 for largest block mappings when FEAT_HAFDBS is present

meitao (1): armv8: enable HAFDBS for other ELx when FEAT_HAFDBS is present

arch/arm/cpu/armv8/cache_v8.c | 30 +++++++++++++++++++++++++++--- arch/arm/include/asm/armv8/mmu.h | 20 ++++++++++++++++---- arch/arm/include/asm/global_data.h | 2 ++ 3 files changed, 45 insertions(+), 7 deletions(-)