Author: Ingo Molnar <[EMAIL PROTECTED]>
Author: Dor Laor <[EMAIL PROTECTED]>
Signed-off-by: Gregory Haskins <[EMAIL PROTECTED]>
---
include/linux/kvm.h | 20 ++++++++++++++++++++
1 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 1d5a49c..7e9b862 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -298,4 +298,24 @@ struct kvm_signal_mask {
#define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
#define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
+/*
+ * Hypercall calling convention:
+ *
+ * Each hypercall may have 0-6 parameters.
+ *
+ * 64-bit hypercall index is in RAX, goes from 0 to __NR_hypercalls-1
+ *
+ * 64-bit parameters 1-6 are in the standard gcc x86_64 calling convention
+ * order: RDI, RSI, RDX, RCX, R8, R9.
+ *
+ * 32-bit index is EBX, parameters are: EAX, ECX, EDX, ESI, EDI, EBP.
+ * (the first 3 are according to the gcc regparm calling convention)
+ *
+ * No registers are clobbered by the hypercall, except that the
+ * return value is in RAX.
+ */
+#define KVM_NR_HYPERCALLS 1
+
+#define __NR_hypercall_test 0
+
#endif
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