diff options
| author | John Baldwin <jhb@FreeBSD.org> | 2026-02-18 16:04:54 +0000 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2026-02-18 16:04:54 +0000 |
| commit | 349808d8bd197165390a286bccdaa29a1d77c7ab (patch) | |
| tree | 056d15f45f43c228a9b4ff721992c92c90ae7e13 /sys/security/mac_bsdextended/ugidfw_internal.h | |
| parent | 3a960425df759a7bb8f946d23f035c63f3a5de7a (diff) | |
Since the low bits of a window's limit are hardwired to 1, this
configuration looks like a minimally sized window at address 0.
However, PCI resources are not generally at address 0 (see the
__PCI_BAR_ZERO_VALID macro that was only defined on sparc64), and some
PCI-PCI bridges report these register values after a reset. The
result today is a lot of spam in dmesg as the minimally-sized windows
fail to allocate. By ignoring these windows and treating them as
closed the end result is the same, but there is less spam during boot.
Reported by: jrtc27
Differential Revision: https://reviews.freebsd.org/D43922
Diffstat (limited to 'sys/security/mac_bsdextended/ugidfw_internal.h')
0 files changed, 0 insertions, 0 deletions