This patchset is a result of my work to get the *BSD kernels to boot under QEMU SPARC64, and should be applied on top of the timer patchset previously posted.
With these patches applied we now get the following:
- NetBSD kernels start and enumerate PCI devices but panic due to missing device properties
- Old OpenBSD kernels start and enumerate PCI devices but panic due to missing device properties
- New OpenBSD kernels trap soon after trap table takeover (possible window fill/spill issue?)
- FreeBSD kernels start and die during PCI device enumeration similar to above but seem to stop console output after trap table takeover?
The first four patches fix bugs which enable us to unmap page zero on SPARC64 to catch NULL dereferences (in line with all other architectures) and helped further reveal the bugs fixed by the subsequent patches.
Mark Cave-Ayland (7): pc_serial.c: fix up missing address property pc_kbd.c: fix up reg property and missing address property SPARC64: fix NULL pointer reference when attempting kernel boot SPARC64: Remove zero page mapping from MMU to enable detection of NULL pointer dereferences SPARC64: fix up translation property mode to make it a valid TTE ciface.fs: handle buggy callers to test-method SPARC64: only map 8MB RAM on startup
openbios-devel/arch/sparc64/boot.c | 40 ++++++++++++++------------- openbios-devel/arch/sparc64/ofmem_sparc64.c | 6 ++-- openbios-devel/drivers/pc_kbd.c | 15 +++++++++- openbios-devel/drivers/pc_serial.c | 6 ++++ openbios-devel/forth/system/ciface.fs | 25 +++++++++++++---- 5 files changed, 64 insertions(+), 28 deletions(-)