| #ifndef _LINUX_LGUEST_LAUNCHER |
| #define _LINUX_LGUEST_LAUNCHER |
| /* Everything the "lguest" userspace program needs to know. */ |
| #include <linux/types.h> |
| |
| /*D:010 |
| * Drivers |
| * |
| * The Guest needs devices to do anything useful. Since we don't let it touch |
| * real devices (think of the damage it could do!) we provide virtual devices. |
| * We emulate a PCI bus with virtio devices on it; we used to have our own |
| * lguest bus which was far simpler, but this tests the virtio 1.0 standard. |
| * |
| * Virtio devices are also used by kvm, so we can simply reuse their optimized |
| * device drivers. And one day when everyone uses virtio, my plan will be |
| * complete. Bwahahahah! |
| */ |
| |
| /* Write command first word is a request. */ |
| enum lguest_req |
| { |
| LHREQ_INITIALIZE, /* + base, pfnlimit, start */ |
| LHREQ_GETDMA, /* No longer used */ |
| LHREQ_IRQ, /* + irq */ |
| LHREQ_BREAK, /* No longer used */ |
| LHREQ_EVENTFD, /* No longer used. */ |
| LHREQ_GETREG, /* + offset within struct pt_regs (then read value). */ |
| LHREQ_SETREG, /* + offset within struct pt_regs, value. */ |
| LHREQ_TRAP, /* + trap number to deliver to guest. */ |
| }; |
| |
| /* |
| * This is what read() of the lguest fd populates. trap == |
| * LGUEST_TRAP_ENTRY for an LHCALL_NOTIFY (addr is the |
| * argument), 14 for a page fault in the MMIO region (addr is |
| * the trap address, insn is the instruction), or 13 for a GPF |
| * (insn is the instruction). |
| */ |
| struct lguest_pending { |
| __u8 trap; |
| __u8 insn[7]; |
| __u32 addr; |
| }; |
| #endif /* _LINUX_LGUEST_LAUNCHER */ |
