1 /* Architecture specific portion of the lguest hypercalls */
2 #ifndef _ASM_X86_LGUEST_HCALL_H
3 #define _ASM_X86_LGUEST_HCALL_H
5 #define LHCALL_FLUSH_ASYNC 0
6 #define LHCALL_LGUEST_INIT 1
7 #define LHCALL_SHUTDOWN 2
8 #define LHCALL_NEW_PGTABLE 4
9 #define LHCALL_FLUSH_TLB 5
10 #define LHCALL_LOAD_IDT_ENTRY 6
11 #define LHCALL_SET_STACK 7
13 #define LHCALL_SET_CLOCKEVENT 9
14 #define LHCALL_HALT 10
15 #define LHCALL_SET_PTE 14
16 #define LHCALL_SET_PMD 15
17 #define LHCALL_LOAD_TLS 16
18 #define LHCALL_NOTIFY 17
19 #define LHCALL_LOAD_GDT_ENTRY 18
21 #define LGUEST_TRAP_ENTRY 0x1F
23 /* Argument number 3 to LHCALL_LGUEST_SHUTDOWN */
24 #define LGUEST_SHUTDOWN_POWEROFF 1
25 #define LGUEST_SHUTDOWN_RESTART 2
28 #include <asm/hw_irq.h>
29 #include <asm/kvm_para.h>
31 /*G:031 But first, how does our Guest contact the Host to ask for privileged
32 * operations? There are two ways: the direct way is to make a "hypercall",
33 * to make requests of the Host Itself.
35 * We use the KVM hypercall mechanism. Eighteen hypercalls are
36 * available: the hypercall number is put in the %eax register, and the
37 * arguments (when required) are placed in %ebx, %ecx and %edx. If a return
38 * value makes sense, it's returned in %eax.
40 * Grossly invalid calls result in Sudden Death at the hands of the vengeful
41 * Host, rather than returning failure. This reflects Winston Churchill's
42 * definition of a gentleman: "someone who is only rude intentionally". */
45 /* Can't use our min() macro here: needs to be a constant */
46 #define LGUEST_IRQS (NR_IRQS < 32 ? NR_IRQS: 32)
48 #define LHCALL_RING_SIZE 64
50 /* These map directly onto eax, ebx, ecx, edx in struct lguest_regs */
51 unsigned long arg0, arg1, arg2, arg3;
54 #endif /* !__ASSEMBLY__ */
55 #endif /* _ASM_X86_LGUEST_HCALL_H */