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xen64: define asm/xen/interface for 64-bit
Copy 64-bit definitions of various interface structures into place. Signed-off-by: Jeremy Fitzhardinge <[email protected]> Cc: Stephen Tweedie <[email protected]> Cc: Eduardo Habkost <[email protected]> Cc: Mark McLoughlin <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
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| /****************************************************************************** | ||
| * arch-x86_32.h | ||
| * | ||
| * Guest OS interface to x86 32-bit Xen. | ||
| * | ||
| * Copyright (c) 2004, K A Fraser | ||
| */ | ||
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| #ifndef __ASM_X86_XEN_INTERFACE_32_H | ||
| #define __ASM_X86_XEN_INTERFACE_32_H | ||
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| /* | ||
| * These flat segments are in the Xen-private section of every GDT. Since these | ||
| * are also present in the initial GDT, many OSes will be able to avoid | ||
| * installing their own GDT. | ||
| */ | ||
| #define FLAT_RING1_CS 0xe019 /* GDT index 259 */ | ||
| #define FLAT_RING1_DS 0xe021 /* GDT index 260 */ | ||
| #define FLAT_RING1_SS 0xe021 /* GDT index 260 */ | ||
| #define FLAT_RING3_CS 0xe02b /* GDT index 261 */ | ||
| #define FLAT_RING3_DS 0xe033 /* GDT index 262 */ | ||
| #define FLAT_RING3_SS 0xe033 /* GDT index 262 */ | ||
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| #define FLAT_KERNEL_CS FLAT_RING1_CS | ||
| #define FLAT_KERNEL_DS FLAT_RING1_DS | ||
| #define FLAT_KERNEL_SS FLAT_RING1_SS | ||
| #define FLAT_USER_CS FLAT_RING3_CS | ||
| #define FLAT_USER_DS FLAT_RING3_DS | ||
| #define FLAT_USER_SS FLAT_RING3_SS | ||
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| /* And the trap vector is... */ | ||
| #define TRAP_INSTR "int $0x82" | ||
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| /* | ||
| * Virtual addresses beyond this are not modifiable by guest OSes. The | ||
| * machine->physical mapping table starts at this address, read-only. | ||
| */ | ||
| #define __HYPERVISOR_VIRT_START 0xF5800000 | ||
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| #ifndef __ASSEMBLY__ | ||
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| struct cpu_user_regs { | ||
| uint32_t ebx; | ||
| uint32_t ecx; | ||
| uint32_t edx; | ||
| uint32_t esi; | ||
| uint32_t edi; | ||
| uint32_t ebp; | ||
| uint32_t eax; | ||
| uint16_t error_code; /* private */ | ||
| uint16_t entry_vector; /* private */ | ||
| uint32_t eip; | ||
| uint16_t cs; | ||
| uint8_t saved_upcall_mask; | ||
| uint8_t _pad0; | ||
| uint32_t eflags; /* eflags.IF == !saved_upcall_mask */ | ||
| uint32_t esp; | ||
| uint16_t ss, _pad1; | ||
| uint16_t es, _pad2; | ||
| uint16_t ds, _pad3; | ||
| uint16_t fs, _pad4; | ||
| uint16_t gs, _pad5; | ||
| }; | ||
| DEFINE_GUEST_HANDLE_STRUCT(cpu_user_regs); | ||
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| typedef uint64_t tsc_timestamp_t; /* RDTSC timestamp */ | ||
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| struct arch_vcpu_info { | ||
| unsigned long cr2; | ||
| unsigned long pad[5]; /* sizeof(struct vcpu_info) == 64 */ | ||
| }; | ||
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| struct xen_callback { | ||
| unsigned long cs; | ||
| unsigned long eip; | ||
| }; | ||
| typedef struct xen_callback xen_callback_t; | ||
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| #define XEN_CALLBACK(__cs, __eip) \ | ||
| ((struct xen_callback){ .cs = (__cs), .eip = (unsigned long)(__eip) }) | ||
| #endif /* !__ASSEMBLY__ */ | ||
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| /* | ||
| * Page-directory addresses above 4GB do not fit into architectural %cr3. | ||
| * When accessing %cr3, or equivalent field in vcpu_guest_context, guests | ||
| * must use the following accessor macros to pack/unpack valid MFNs. | ||
| * | ||
| * Note that Xen is using the fact that the pagetable base is always | ||
| * page-aligned, and putting the 12 MSB of the address into the 12 LSB | ||
| * of cr3. | ||
| */ | ||
| #define xen_pfn_to_cr3(pfn) (((unsigned)(pfn) << 12) | ((unsigned)(pfn) >> 20)) | ||
| #define xen_cr3_to_pfn(cr3) (((unsigned)(cr3) >> 12) | ((unsigned)(cr3) << 20)) | ||
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| #endif /* __ASM_X86_XEN_INTERFACE_32_H */ |
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