[mirror_ubuntu-artful-kernel.git] / arch / x86 / include / asm / lguest_hcall.h

/* Architecture specific portion of the lguest hypercalls */
#ifndef _ASM_X86_LGUEST_HCALL_H
#define _ASM_X86_LGUEST_HCALL_H

#define LHCALL_FLUSH_ASYNC	0
#define LHCALL_LGUEST_INIT	1
#define LHCALL_SHUTDOWN		2
#define LHCALL_NEW_PGTABLE	4
#define LHCALL_FLUSH_TLB	5
#define LHCALL_LOAD_IDT_ENTRY	6
#define LHCALL_SET_STACK	7
#define LHCALL_TS		8
#define LHCALL_SET_CLOCKEVENT	9
#define LHCALL_HALT		10
#define LHCALL_SET_PMD		13
#define LHCALL_SET_PTE		14
#define LHCALL_SET_PGD		15
#define LHCALL_LOAD_TLS		16
#define LHCALL_NOTIFY		17
#define LHCALL_LOAD_GDT_ENTRY	18
#define LHCALL_SEND_INTERRUPTS	19

#define LGUEST_TRAP_ENTRY 0x1F

/* Argument number 3 to LHCALL_LGUEST_SHUTDOWN */
#define LGUEST_SHUTDOWN_POWEROFF	1
#define LGUEST_SHUTDOWN_RESTART		2

#ifndef __ASSEMBLY__
#include <asm/hw_irq.h>
#include <asm/kvm_para.h>

/*G:030
 * But first, how does our Guest contact the Host to ask for privileged
 * operations?  There are two ways: the direct way is to make a "hypercall",
 * to make requests of the Host Itself.
 *
 * We use the KVM hypercall mechanism, though completely different hypercall
 * numbers. Seventeen hypercalls are available: the hypercall number is put in
 * the %eax register, and the arguments (when required) are placed in %ebx,
 * %ecx, %edx and %esi.  If a return value makes sense, it's returned in %eax.
 *
 * Grossly invalid calls result in Sudden Death at the hands of the vengeful
 * Host, rather than returning failure.  This reflects Winston Churchill's
 * definition of a gentleman: "someone who is only rude intentionally".
:*/

/* Can't use our min() macro here: needs to be a constant */
#define LGUEST_IRQS (NR_IRQS < 32 ? NR_IRQS: 32)

#define LHCALL_RING_SIZE 64
struct hcall_args {
	/* These map directly onto eax/ebx/ecx/edx/esi in struct lguest_regs */
	unsigned long arg0, arg1, arg2, arg3, arg4;
};

#endif /* !__ASSEMBLY__ */
#endif /* _ASM_X86_LGUEST_HCALL_H */
Commit	Line	Data
c37ae93d	1	/* Architecture specific portion of the lguest hypercalls */
1965aae3 PA	2	#ifndef _ASM_X86_LGUEST_HCALL_H
1965aae3 PA	3	#define _ASM_X86_LGUEST_HCALL_H
c37ae93d JS	4
	5	#define LHCALL_FLUSH_ASYNC 0
	6	#define LHCALL_LGUEST_INIT 1
ec04b13f	7	#define LHCALL_SHUTDOWN 2
c37ae93d JS	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
	12	#define LHCALL_TS 8
	13	#define LHCALL_SET_CLOCKEVENT 9
	14	#define LHCALL_HALT 10
acdd0b62	15	#define LHCALL_SET_PMD 13
c37ae93d	16	#define LHCALL_SET_PTE 14
ebe0ba84	17	#define LHCALL_SET_PGD 15
c37ae93d	18	#define LHCALL_LOAD_TLS 16
15045275	19	#define LHCALL_NOTIFY 17
a489f0b5	20	#define LHCALL_LOAD_GDT_ENTRY 18
a32a8813	21	#define LHCALL_SEND_INTERRUPTS 19
c37ae93d	22
e1e72965 RR	23	#define LGUEST_TRAP_ENTRY 0x1F
e1e72965 RR	24
ec04b13f BR	25	/* Argument number 3 to LHCALL_LGUEST_SHUTDOWN */
	26	#define LGUEST_SHUTDOWN_POWEROFF 1
	27	#define LGUEST_SHUTDOWN_RESTART 2
	28
e1e72965 RR	29	#ifndef __ASSEMBLY__
e1e72965 RR	30	#include <asm/hw_irq.h>
4cd8b5e2	31	#include <asm/kvm_para.h>
e1e72965	32
2e04ef76 RR	33	/*G:030
2e04ef76 RR	34	* But first, how does our Guest contact the Host to ask for privileged
c37ae93d JS	35	* operations? There are two ways: the direct way is to make a "hypercall",
	36	* to make requests of the Host Itself.
	37	*
a91d74a3 RR	38	* We use the KVM hypercall mechanism, though completely different hypercall
	39	* numbers. Seventeen hypercalls are available: the hypercall number is put in
	40	* the %eax register, and the arguments (when required) are placed in %ebx,
	41	* %ecx, %edx and %esi. If a return value makes sense, it's returned in %eax.
c37ae93d JS	42	*
	43	* Grossly invalid calls result in Sudden Death at the hands of the vengeful
	44	* Host, rather than returning failure. This reflects Winston Churchill's
2e04ef76 RR	45	* definition of a gentleman: "someone who is only rude intentionally".
2e04ef76 RR	46	:*/
c37ae93d	47
c37ae93d JS	48	/* Can't use our min() macro here: needs to be a constant */
	49	#define LGUEST_IRQS (NR_IRQS < 32 ? NR_IRQS: 32)
	50
	51	#define LHCALL_RING_SIZE 64
fd1ea0c2	52	struct hcall_args {
2e04ef76	53	/* These map directly onto eax/ebx/ecx/edx/esi in struct lguest_regs */
cefcad17	54	unsigned long arg0, arg1, arg2, arg3, arg4;
c37ae93d	55	};
47436aa4 RR	56
47436aa4 RR	57	#endif /* !__ASSEMBLY__ */
1965aae3	58	#endif /* _ASM_X86_LGUEST_HCALL_H */