Jes Sorensen | c37ae93 | 2007-10-22 10:56:26 +1000 | [diff] [blame] | 1 | /* Architecture specific portion of the lguest hypercalls */ |
H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 2 | #ifndef _ASM_X86_LGUEST_HCALL_H |
| 3 | #define _ASM_X86_LGUEST_HCALL_H |
Jes Sorensen | c37ae93 | 2007-10-22 10:56:26 +1000 | [diff] [blame] | 4 | |
| 5 | #define LHCALL_FLUSH_ASYNC 0 |
| 6 | #define LHCALL_LGUEST_INIT 1 |
Balaji Rao | ec04b13 | 2007-12-28 14:26:24 +0530 | [diff] [blame] | 7 | #define LHCALL_SHUTDOWN 2 |
Jes Sorensen | c37ae93 | 2007-10-22 10:56:26 +1000 | [diff] [blame] | 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 |
Matias Zabaljauregui | acdd0b6 | 2009-06-12 22:27:07 -0600 | [diff] [blame] | 15 | #define LHCALL_SET_PMD 13 |
Jes Sorensen | c37ae93 | 2007-10-22 10:56:26 +1000 | [diff] [blame] | 16 | #define LHCALL_SET_PTE 14 |
Matias Zabaljauregui | ebe0ba8 | 2009-05-30 15:48:08 -0300 | [diff] [blame] | 17 | #define LHCALL_SET_PGD 15 |
Jes Sorensen | c37ae93 | 2007-10-22 10:56:26 +1000 | [diff] [blame] | 18 | #define LHCALL_LOAD_TLS 16 |
Rusty Russell | 1504527 | 2007-10-22 11:24:10 +1000 | [diff] [blame] | 19 | #define LHCALL_NOTIFY 17 |
Rusty Russell | a489f0b | 2009-04-19 23:14:00 -0600 | [diff] [blame] | 20 | #define LHCALL_LOAD_GDT_ENTRY 18 |
Rusty Russell | a32a881 | 2009-06-12 22:27:02 -0600 | [diff] [blame] | 21 | #define LHCALL_SEND_INTERRUPTS 19 |
Jes Sorensen | c37ae93 | 2007-10-22 10:56:26 +1000 | [diff] [blame] | 22 | |
Rusty Russell | e1e7296 | 2007-10-25 15:02:50 +1000 | [diff] [blame] | 23 | #define LGUEST_TRAP_ENTRY 0x1F |
| 24 | |
Balaji Rao | ec04b13 | 2007-12-28 14:26:24 +0530 | [diff] [blame] | 25 | /* Argument number 3 to LHCALL_LGUEST_SHUTDOWN */ |
| 26 | #define LGUEST_SHUTDOWN_POWEROFF 1 |
| 27 | #define LGUEST_SHUTDOWN_RESTART 2 |
| 28 | |
Rusty Russell | e1e7296 | 2007-10-25 15:02:50 +1000 | [diff] [blame] | 29 | #ifndef __ASSEMBLY__ |
| 30 | #include <asm/hw_irq.h> |
Matias Zabaljauregui | 4cd8b5e | 2009-03-14 13:37:52 -0200 | [diff] [blame] | 31 | #include <asm/kvm_para.h> |
Rusty Russell | e1e7296 | 2007-10-25 15:02:50 +1000 | [diff] [blame] | 32 | |
Rusty Russell | 2e04ef7 | 2009-07-30 16:03:45 -0600 | [diff] [blame] | 33 | /*G:030 |
| 34 | * But first, how does our Guest contact the Host to ask for privileged |
Jes Sorensen | c37ae93 | 2007-10-22 10:56:26 +1000 | [diff] [blame] | 35 | * operations? There are two ways: the direct way is to make a "hypercall", |
| 36 | * to make requests of the Host Itself. |
| 37 | * |
Rusty Russell | a91d74a | 2009-07-30 16:03:45 -0600 | [diff] [blame] | 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. |
Jes Sorensen | c37ae93 | 2007-10-22 10:56:26 +1000 | [diff] [blame] | 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 |
Rusty Russell | 2e04ef7 | 2009-07-30 16:03:45 -0600 | [diff] [blame] | 45 | * definition of a gentleman: "someone who is only rude intentionally". |
| 46 | :*/ |
Jes Sorensen | c37ae93 | 2007-10-22 10:56:26 +1000 | [diff] [blame] | 47 | |
Jes Sorensen | c37ae93 | 2007-10-22 10:56:26 +1000 | [diff] [blame] | 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 |
Joe Perches | fd1ea0c | 2008-03-23 01:02:36 -0700 | [diff] [blame] | 52 | struct hcall_args { |
Rusty Russell | 2e04ef7 | 2009-07-30 16:03:45 -0600 | [diff] [blame] | 53 | /* These map directly onto eax/ebx/ecx/edx/esi in struct lguest_regs */ |
Matias Zabaljauregui | cefcad1 | 2009-06-12 22:27:07 -0600 | [diff] [blame] | 54 | unsigned long arg0, arg1, arg2, arg3, arg4; |
Jes Sorensen | c37ae93 | 2007-10-22 10:56:26 +1000 | [diff] [blame] | 55 | }; |
Rusty Russell | 47436aa | 2007-10-22 11:03:36 +1000 | [diff] [blame] | 56 | |
| 57 | #endif /* !__ASSEMBLY__ */ |
H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 58 | #endif /* _ASM_X86_LGUEST_HCALL_H */ |