Re: x86 bootstrap features

[Emmanuel Dreyfus <manu%netbsd.org@localhost>]

On Tue, Sep 24, 2019 at 01:31:51PM +0200, Kamil Rytarowski wrote:
> My use-case is "qemu-system-x86_64 -kernel ./netbsd". Last I tried (with
> multiboot2 patches merged) it still did not work.

I did not commit anything in multiboot support in the NetBSD kernel,
I only worked on bootstraps for now, hence the steady failure you
experience should come at no suprise.

For now our kernel has support code for multiboot 1 for i386 only. 
Reading Qemu sources, thare is only multiboot 1 support. Hence
qemu-system-i386 -kernel netbsd.bz2 should work, but I only had
this message:
SeaBIOS (version rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org)
Booting from ROM..

Reading the sources, it seems you can get more diagnostics by
rebuilding Qemu with higher CONFIG_DEBUG_LEVEL.


-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost