diff options
| author | Alexander Graf <agraf@suse.de> | 2010-07-29 12:47:57 (GMT) |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 08:50:50 (GMT) |
| commit | d17051cb8d223dffd6bb847b0565ef1654f8e0e1 (patch) | |
| tree | 486a1b71ec2147de47a6a4c34c9b9ab88be039e7 /arch/powerpc/kernel/kvm_emul.S | |
| parent | ba492962363a02c45836be205f339be48093e1be (diff) | |
| download | linux-d17051cb8d223dffd6bb847b0565ef1654f8e0e1.tar.xz | |
KVM: PPC: Generic KVM PV guest support
We have all the hypervisor pieces in place now, but the guest parts are still
missing.
This patch implements basic awareness of KVM when running Linux as guest. It
doesn't do anything with it yet though.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/kernel/kvm_emul.S')
| -rw-r--r-- | arch/powerpc/kernel/kvm_emul.S | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/kvm_emul.S b/arch/powerpc/kernel/kvm_emul.S new file mode 100644 index 0000000..5cfa2ae --- /dev/null +++ b/arch/powerpc/kernel/kvm_emul.S @@ -0,0 +1,36 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Copyright SUSE Linux Products GmbH 2010 + * + * Authors: Alexander Graf <agraf@suse.de> + */ + +#include <asm/ppc_asm.h> +#include <asm/kvm_asm.h> +#include <asm/reg.h> +#include <asm/page.h> +#include <asm/asm-offsets.h> + +/* Hypercall entry point. Will be patched with device tree instructions. */ + +.global kvm_hypercall_start +kvm_hypercall_start: + li r3, -1 + nop + nop + nop + blr + +#define KVM_MAGIC_PAGE (-4096) |