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KVM: Wire up hypercall handlers to a central arch-independent location

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Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity
2007-02-19 14:37:47 +02:00
parent 02e235bc8e
commit 270fd9b96f
4 changed files with 40 additions and 18 deletions
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36
drivers/kvm/kvm_main.c
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@@ -1138,6 +1138,42 @@ int emulate_instruction(struct kvm_vcpu *vcpu,
}
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;