linux/arch/x86/lguest
Rusty Russell 091ebf07a2 lguest: stop using KVM hypercall mechanism
This is a partial revert of 4cd8b5e2a1 "lguest: use KVM hypercalls";
we revert to using (just as questionable but more reliable) int $15 for
hypercalls.  I didn't revert the register mapping, so we still use the
same calling convention as kvm.

KVM in more recent incarnations stopped injecting a fault when a guest
tried to use the VMCALL instruction from ring 1, so lguest under kvm
fails to make hypercalls.  It was nice to share code with our KVM
cousins, but this was overreach.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Matias Zabaljauregui <zabaljauregui@gmail.com>
Cc: Avi Kivity <avi@redhat.com>
2010-04-14 21:43:56 +09:30
..
boot.c lguest: stop using KVM hypercall mechanism 2010-04-14 21:43:56 +09:30
i386_head.S lguest: stop using KVM hypercall mechanism 2010-04-14 21:43:56 +09:30
Kconfig lguest: PAE support 2009-06-12 22:27:08 +09:30
Makefile lguest: fix 'unhandled trap 13' with CONFIG_CC_STACKPROTECTOR 2009-06-04 11:50:06 -07:00