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KVM: PPC: Add OSI hypercall interface

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MOL uses its own hypercall interface to call back into userspace when
the guest wants to do something.

So let's implement that as an exit reason, specify it with a CAP and
only really use it when userspace wants us to.

The only user of it so far is MOL.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Alexander Graf
2010-03-24 21:48:30 +01:00
committed by Avi Kivity
parent 71fbfd5f38
commit ad0a048b09
6 changed files with 59 additions and 9 deletions
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arch/powerpc/include/asm/kvm_host.h
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@@ -273,6 +273,8 @@ struct kvm_vcpu_arch {
u8 mmio_sign_extend;
u8 dcr_needed;
u8 dcr_is_write;
u8 osi_needed;
u8 osi_enabled;
u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */