projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| cf47a83f JB |
1 | #include <linux/kernel.h> |
| 2 | #include <linux/string.h> | |
| 3 | #include <linux/bug.h> | |
| 4 | #include <linux/export.h> | |
| 5 | #include <asm/hypervisor.h> | |
| 6 | #include <asm/xen/hypercall.h> | |
| 7 | ||
| 8 | int xen_event_channel_op_compat(int cmd, void *arg) | |
| 9 | { | |
| 10 | struct evtchn_op op; | |
| 11 | int rc; | |
| 12 | ||
| 13 | op.cmd = cmd; | |
| 14 | memcpy(&op.u, arg, sizeof(op.u)); | |
| 15 | rc = _hypercall1(int, event_channel_op_compat, &op); | |
| 16 | ||
| 17 | switch (cmd) { | |
| 18 | case EVTCHNOP_close: | |
| 19 | case EVTCHNOP_send: | |
| 20 | case EVTCHNOP_bind_vcpu: | |
| 21 | case EVTCHNOP_unmask: | |
| 22 | /* no output */ | |
| 23 | break; | |
| 24 | ||
| 25 | #define COPY_BACK(eop) \ | |
| 26 | case EVTCHNOP_##eop: \ | |
| 27 | memcpy(arg, &op.u.eop, sizeof(op.u.eop)); \ | |
| 28 | break | |
| 29 | ||
| 30 | COPY_BACK(bind_interdomain); | |
| 31 | COPY_BACK(bind_virq); | |
| 32 | COPY_BACK(bind_pirq); | |
| 33 | COPY_BACK(status); | |
| 34 | COPY_BACK(alloc_unbound); | |
| 35 | COPY_BACK(bind_ipi); | |
| 36 | #undef COPY_BACK | |
| 37 | ||
| 38 | default: | |
| 39 | WARN_ON(rc != -ENOSYS); | |
| 40 | break; | |
| 41 | } | |
| 42 | ||
| 43 | return rc; | |
| 44 | } | |
| 45 | EXPORT_SYMBOL_GPL(xen_event_channel_op_compat); | |
| 46 | ||
| 909b3fdb | 47 | int xen_physdev_op_compat(int cmd, void *arg) |
| cf47a83f JB |
48 | { |
| 49 | struct physdev_op op; | |
| 50 | int rc; | |
| 51 | ||
| 52 | op.cmd = cmd; | |
| 53 | memcpy(&op.u, arg, sizeof(op.u)); | |
| 54 | rc = _hypercall1(int, physdev_op_compat, &op); | |
| 55 | ||
| 56 | switch (cmd) { | |
| 57 | case PHYSDEVOP_IRQ_UNMASK_NOTIFY: | |
| 58 | case PHYSDEVOP_set_iopl: | |
| 59 | case PHYSDEVOP_set_iobitmap: | |
| 60 | case PHYSDEVOP_apic_write: | |
| 61 | /* no output */ | |
| 62 | break; | |
| 63 | ||
| 64 | #define COPY_BACK(pop, fld) \ | |
| 65 | case PHYSDEVOP_##pop: \ | |
| 66 | memcpy(arg, &op.u.fld, sizeof(op.u.fld)); \ | |
| 67 | break | |
| 68 | ||
| 69 | COPY_BACK(irq_status_query, irq_status_query); | |
| 70 | COPY_BACK(apic_read, apic_op); | |
| 71 | COPY_BACK(ASSIGN_VECTOR, irq_op); | |
| 72 | #undef COPY_BACK | |
| 73 | ||
| 74 | default: | |
| 75 | WARN_ON(rc != -ENOSYS); | |
| 76 | break; | |
| 77 | } | |
| 78 | ||
| 79 | return rc; | |
| 80 | } | |
| 909b3fdb | 81 | EXPORT_SYMBOL_GPL(xen_physdev_op_compat); |