[Lguest] [PATCH 4/5] lguest: use KVM hypercalls

[Patrick McHardy]

Matias Zabaljauregui wrote:
> Simon, Patrick,
> 
> Rusty suggested that perhaps we need to flush all shadow after rewriting. 
> Could you please try this patch?

I get a new error with this patch:

lguest: unhandled trap 13 at 0xc0513417 (0x0)
c0513410 <lguest_init>:
c0513410:       55                      push   %ebp
c0513411:       89 e5                   mov    %esp,%ebp
c0513413:       53                      push   %ebx
c0513414:       83 ec 14                sub    $0x14,%esp
c0513417:       65 a1 14 00 00 00       mov    %gs:0x14,%eax
c051341d:       89 45 f8                mov    %eax,-0x8(%ebp)
c0513420:       31 c0                   xor    %eax,%eax
c0513422:       c7 05 ac 06 4e c0 ab    movl   $0xc04754ab,0xc04e06ac

which goes away by turning of CONFIG_STACKPROTECTOR. Now it seems
to work, but the host crashes before the guests are fully up somewhere
in the tun-device. I couldn't capture the oops yet, but I'll try
to fix it myself.