diff options
| author | Alexander Graf <agraf@suse.de> | 2010-02-19 11:00:30 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-04-25 12:34:44 +0300 |
| commit | 3587d5348ced089666c51411bd9d771fb0b072cf (patch) | |
| tree | 245573252a8e40342bc777893f9bff5c5beac264 /arch/powerpc/include/asm/kvm_host.h | |
| parent | b104d06632d08957f384ff7403f609fb5dfb9cbd (diff) | |
KVM: PPC: Teach MMIO Signedness
The guest I was trying to get to run uses the LHA and LHAU instructions.
Those instructions basically do a load, but also sign extend the result.
Since we need to fill our registers by hand when doing MMIO, we also need
to sign extend manually.
This patch implements sign extended MMIO and the LHA(U) instructions.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/include/asm/kvm_host.h')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index fb87dcf418bf..119deb4750d9 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -270,6 +270,7 @@ struct kvm_vcpu_arch { u8 io_gpr; /* GPR used as IO source/target */ u8 mmio_is_bigendian; + u8 mmio_sign_extend; u8 dcr_needed; u8 dcr_is_write; |