diff options
| author | Avi Kivity <avi@qumranet.com> | 2007-02-19 14:37:47 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-03-04 11:12:41 +0200 |
| commit | 270fd9b96f5fcb7df15d3ca6166545d4aa0f3ee9 (patch) | |
| tree | 06dcbab8d87b120ddf80ed4e184743fe542b4da8 /drivers/kvm/kvm_main.c | |
| parent | 02e235bc8eebf8a6fef10d46479b3c18f3e9c4f2 (diff) | |
| download | lwn-270fd9b96f5fcb7df15d3ca6166545d4aa0f3ee9.tar.gz lwn-270fd9b96f5fcb7df15d3ca6166545d4aa0f3ee9.zip | |
KVM: Wire up hypercall handlers to a central arch-independent location
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/kvm_main.c')
| -rw-r--r-- | drivers/kvm/kvm_main.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 757a41f1db84..2be9738dfd78 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -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; |