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authormatt <matt@NetBSD.org>2002-07-25 23:33:04 +0000
committermatt <matt@NetBSD.org>2002-07-25 23:33:04 +0000
commita660a9325fdf88d0925ad173c2a90080267bef77 (patch)
treeaae5f8de8d2d395fc62430d2ab453e54c919b615 /sys/dev/microcode
parent7e57db6ca92a5c1a7ece304ac130566c5a797766 (diff)
Set normal memory PTEs with PTE_M (memory coherent). Change how we
remember the "exec"ness of a page. If a managed page is pmap_enter'ed with VM_PROT_EXECUTE, remember that it's an "exec"page. Such that when additional mapping are performed, no synch'ing of the I-cache is needed. Revoke "exec"ness when the page is mapped into the kernel with VM_PROT_WRITE or the pmap_page_protect is called with VM_PROT_NONE.
Diffstat (limited to 'sys/dev/microcode')
0 files changed, 0 insertions, 0 deletions