KVM: Wire up hypercall handlers to a central arch-independent location
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 757a41f..2be9738 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -1138,6 +1138,42 @@
}
EXPORT_SYMBOL_GPL(emulate_instruction);
+int kvm_hypercall(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+ unsigned long nr, a0, a1, a2, a3, a4, a5, ret;
+
+ kvm_arch_ops->decache_regs(vcpu);
+ ret = -KVM_EINVAL;
+#ifdef CONFIG_X86_64
+ if (is_long_mode(vcpu)) {
+ nr = vcpu->regs[VCPU_REGS_RAX];
+ a0 = vcpu->regs[VCPU_REGS_RDI];
+ a1 = vcpu->regs[VCPU_REGS_RSI];
+ a2 = vcpu->regs[VCPU_REGS_RDX];
+ a3 = vcpu->regs[VCPU_REGS_RCX];
+ a4 = vcpu->regs[VCPU_REGS_R8];
+ a5 = vcpu->regs[VCPU_REGS_R9];
+ } else
+#endif
+ {
+ nr = vcpu->regs[VCPU_REGS_RBX] & -1u;
+ a0 = vcpu->regs[VCPU_REGS_RAX] & -1u;
+ a1 = vcpu->regs[VCPU_REGS_RCX] & -1u;
+ a2 = vcpu->regs[VCPU_REGS_RDX] & -1u;
+ a3 = vcpu->regs[VCPU_REGS_RSI] & -1u;
+ a4 = vcpu->regs[VCPU_REGS_RDI] & -1u;
+ a5 = vcpu->regs[VCPU_REGS_RBP] & -1u;
+ }
+ switch (nr) {
+ default:
+ ;
+ }
+ vcpu->regs[VCPU_REGS_RAX] = ret;
+ kvm_arch_ops->cache_regs(vcpu);
+ return 1;
+}
+EXPORT_SYMBOL_GPL(kvm_hypercall);
+
static u64 mk_cr_64(u64 curr_cr, u32 new_val)
{
return (curr_cr & ~((1ULL << 32) - 1)) | new_val;