Re: [Qemu-devel] [RFC PATCH] Distinguish between reset types

[Laszlo Ersek]

On 02/20/13 19:12, Anthony Liguori wrote:

> Or better yet, post binaries of Tiano Core + SeaBIOS as a CSM for me to
> try out?

I tested David's recent PAM-resetting series with these:

http://people.redhat.com/~lersek/csm-test.tar.xz

(Debug output of OVMF, SeaBIOS and SeaVGABIOS all goes to the qemu debug
console; -debugcon file:XXXX -global isa-debugcon.iobase=0x402.)

> The above implements a CPU-only soft reset that should fix the problem
> you're having with PAM resetting unconditionally.  If it works, I'll
> fixup the other PC callers of reset too.

The problem I was facing on my workstation is that the PAM registers
were *not* reset, unconditionally. What I needed was KVM continuing at
0xfffffff0, or to make the reset "as hard as possible": it was "too
soft". So if the linked branch makes resets softer, that's the opposite
direction for my problem.

Thanks
Laszlo