> I need to add zero-page to support XIP. Unallocated blocks are redirected > to this. Basically it's a static simgle page filled with zero.
did you look at uvm_loanzero, which does something similar? YAMAMOTO Takashi > > void *pmap_zeropage; > paddr_t pmap_zeropage_phys_addr; > > and initialized by pmap.c like: > > pmap_zeropage = (void *)uvm_pageboot_alloc(PAGE_SIZE); > pmap_zeropage_phys_addr = MIPS_KSEG0_TO_PHYS(pmap_zeropage); > > Because it's used publically (from the coming custome genfs_getpages()), it's > defined somewhere like uvm_page.h. > > Masao > > -- > Masao Uebayashi / Tombi Inc. / Tel: +81-90-9141-4635
