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authorAlexander Graf <agraf@suse.de>2010-02-19 11:00:30 +0100
committerAvi Kivity <avi@redhat.com>2010-04-25 12:34:44 +0300
commit3587d5348ced089666c51411bd9d771fb0b072cf (patch)
tree245573252a8e40342bc777893f9bff5c5beac264 /arch/powerpc/include/asm/kvm_host.h
parentb104d06632d08957f384ff7403f609fb5dfb9cbd (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.h1
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 fb87dcf418b..119deb4750d 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;