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| author | Alexander Graf <agraf@suse.de> | 2010-03-24 21:48:30 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-05-17 12:17:10 +0300 |
| commit | ad0a048b096ac819f28667602285453468a8d8f9 (patch) | |
| tree | 491128ccab48eb277a5cf5919a798b0507da9859 /arch/powerpc/include/asm/kvm_book3s.h | |
| parent | 71fbfd5f38f73515f1516a68fbe04dba198b70f0 (diff) | |
| download | lwn-ad0a048b096ac819f28667602285453468a8d8f9.tar.gz lwn-ad0a048b096ac819f28667602285453468a8d8f9.zip | |
KVM: PPC: Add OSI hypercall interface
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>
Diffstat (limited to 'arch/powerpc/include/asm/kvm_book3s.h')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_book3s.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index bea76371dbe1..7e243b2cac72 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -148,6 +148,11 @@ static inline ulong dsisr(void) extern void kvm_return_point(void); +/* Magic register values loaded into r3 and r4 before the 'sc' assembly + * instruction for the OSI hypercalls */ +#define OSI_SC_MAGIC_R3 0x113724FA +#define OSI_SC_MAGIC_R4 0x77810F9B + #define INS_DCBZ 0x7c0007ec #endif /* __ASM_KVM_BOOK3S_H__ */ |