diff options
Diffstat (limited to 'qemu/roms/ipxe/src/include/xen/arch-x86')
| -rw-r--r-- | qemu/roms/ipxe/src/include/xen/arch-x86/xen-x86_32.h | 173 | ||||
| -rw-r--r-- | qemu/roms/ipxe/src/include/xen/arch-x86/xen-x86_64.h | 204 | ||||
| -rw-r--r-- | qemu/roms/ipxe/src/include/xen/arch-x86/xen.h | 275 |
3 files changed, 0 insertions, 652 deletions
diff --git a/qemu/roms/ipxe/src/include/xen/arch-x86/xen-x86_32.h b/qemu/roms/ipxe/src/include/xen/arch-x86/xen-x86_32.h deleted file mode 100644 index 96c8f4897..000000000 --- a/qemu/roms/ipxe/src/include/xen/arch-x86/xen-x86_32.h +++ /dev/null @@ -1,173 +0,0 @@ -/****************************************************************************** - * xen-x86_32.h - * - * Guest OS interface to x86 32-bit Xen. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Copyright (c) 2004-2007, K A Fraser - */ - -#ifndef __XEN_PUBLIC_ARCH_X86_XEN_X86_32_H__ -#define __XEN_PUBLIC_ARCH_X86_XEN_X86_32_H__ - -FILE_LICENCE ( MIT ); - -/* - * Hypercall interface: - * Input: %ebx, %ecx, %edx, %esi, %edi, %ebp (arguments 1-6) - * Output: %eax - * Access is via hypercall page (set up by guest loader or via a Xen MSR): - * call hypercall_page + hypercall-number * 32 - * Clobbered: Argument registers (e.g., 2-arg hypercall clobbers %ebx,%ecx) - */ - -/* - * 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 */ - -#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 - -#define __HYPERVISOR_VIRT_START_PAE 0xF5800000 -#define __MACH2PHYS_VIRT_START_PAE 0xF5800000 -#define __MACH2PHYS_VIRT_END_PAE 0xF6800000 -#define HYPERVISOR_VIRT_START_PAE \ - mk_unsigned_long(__HYPERVISOR_VIRT_START_PAE) -#define MACH2PHYS_VIRT_START_PAE \ - mk_unsigned_long(__MACH2PHYS_VIRT_START_PAE) -#define MACH2PHYS_VIRT_END_PAE \ - mk_unsigned_long(__MACH2PHYS_VIRT_END_PAE) - -/* Non-PAE bounds are obsolete. */ -#define __HYPERVISOR_VIRT_START_NONPAE 0xFC000000 -#define __MACH2PHYS_VIRT_START_NONPAE 0xFC000000 -#define __MACH2PHYS_VIRT_END_NONPAE 0xFC400000 -#define HYPERVISOR_VIRT_START_NONPAE \ - mk_unsigned_long(__HYPERVISOR_VIRT_START_NONPAE) -#define MACH2PHYS_VIRT_START_NONPAE \ - mk_unsigned_long(__MACH2PHYS_VIRT_START_NONPAE) -#define MACH2PHYS_VIRT_END_NONPAE \ - mk_unsigned_long(__MACH2PHYS_VIRT_END_NONPAE) - -#define __HYPERVISOR_VIRT_START __HYPERVISOR_VIRT_START_PAE -#define __MACH2PHYS_VIRT_START __MACH2PHYS_VIRT_START_PAE -#define __MACH2PHYS_VIRT_END __MACH2PHYS_VIRT_END_PAE - -#ifndef HYPERVISOR_VIRT_START -#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START) -#endif - -#define MACH2PHYS_VIRT_START mk_unsigned_long(__MACH2PHYS_VIRT_START) -#define MACH2PHYS_VIRT_END mk_unsigned_long(__MACH2PHYS_VIRT_END) -#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>2) -#ifndef machine_to_phys_mapping -#define machine_to_phys_mapping ((unsigned long *)MACH2PHYS_VIRT_START) -#endif - -/* 32-/64-bit invariability for control interfaces (domctl/sysctl). */ -#if defined(__XEN__) || defined(__XEN_TOOLS__) -#undef ___DEFINE_XEN_GUEST_HANDLE -#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \ - typedef struct { type *p; } \ - __guest_handle_ ## name; \ - typedef struct { union { type *p; uint64_aligned_t q; }; } \ - __guest_handle_64_ ## name -#undef set_xen_guest_handle_raw -#define set_xen_guest_handle_raw(hnd, val) \ - do { if ( sizeof(hnd) == 8 ) *(uint64_t *)&(hnd) = 0; \ - (hnd).p = val; \ - } while ( 0 ) -#define uint64_aligned_t uint64_t __attribute__((aligned(8))) -#define __XEN_GUEST_HANDLE_64(name) __guest_handle_64_ ## name -#define XEN_GUEST_HANDLE_64(name) __XEN_GUEST_HANDLE_64(name) -#endif - -#ifndef __ASSEMBLY__ - -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; -}; -typedef struct cpu_user_regs cpu_user_regs_t; -DEFINE_XEN_GUEST_HANDLE(cpu_user_regs_t); - -/* - * 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. - */ -#define xen_pfn_to_cr3(pfn) (((unsigned)(pfn) << 12) | ((unsigned)(pfn) >> 20)) -#define xen_cr3_to_pfn(cr3) (((unsigned)(cr3) >> 12) | ((unsigned)(cr3) << 20)) - -struct arch_vcpu_info { - unsigned long cr2; - unsigned long pad[5]; /* sizeof(vcpu_info_t) == 64 */ -}; -typedef struct arch_vcpu_info arch_vcpu_info_t; - -struct xen_callback { - unsigned long cs; - unsigned long eip; -}; -typedef struct xen_callback xen_callback_t; - -#endif /* !__ASSEMBLY__ */ - -#endif /* __XEN_PUBLIC_ARCH_X86_XEN_X86_32_H__ */ - -/* - * Local variables: - * mode: C - * c-file-style: "BSD" - * c-basic-offset: 4 - * tab-width: 4 - * indent-tabs-mode: nil - * End: - */ diff --git a/qemu/roms/ipxe/src/include/xen/arch-x86/xen-x86_64.h b/qemu/roms/ipxe/src/include/xen/arch-x86/xen-x86_64.h deleted file mode 100644 index 0e9270221..000000000 --- a/qemu/roms/ipxe/src/include/xen/arch-x86/xen-x86_64.h +++ /dev/null @@ -1,204 +0,0 @@ -/****************************************************************************** - * xen-x86_64.h - * - * Guest OS interface to x86 64-bit Xen. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Copyright (c) 2004-2006, K A Fraser - */ - -#ifndef __XEN_PUBLIC_ARCH_X86_XEN_X86_64_H__ -#define __XEN_PUBLIC_ARCH_X86_XEN_X86_64_H__ - -FILE_LICENCE ( MIT ); - -/* - * Hypercall interface: - * Input: %rdi, %rsi, %rdx, %r10, %r8, %r9 (arguments 1-6) - * Output: %rax - * Access is via hypercall page (set up by guest loader or via a Xen MSR): - * call hypercall_page + hypercall-number * 32 - * Clobbered: argument registers (e.g., 2-arg hypercall clobbers %rdi,%rsi) - */ - -/* - * 64-bit segment selectors - * 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_RING3_CS32 0xe023 /* GDT index 260 */ -#define FLAT_RING3_CS64 0xe033 /* GDT index 261 */ -#define FLAT_RING3_DS32 0xe02b /* GDT index 262 */ -#define FLAT_RING3_DS64 0x0000 /* NULL selector */ -#define FLAT_RING3_SS32 0xe02b /* GDT index 262 */ -#define FLAT_RING3_SS64 0xe02b /* GDT index 262 */ - -#define FLAT_KERNEL_DS64 FLAT_RING3_DS64 -#define FLAT_KERNEL_DS32 FLAT_RING3_DS32 -#define FLAT_KERNEL_DS FLAT_KERNEL_DS64 -#define FLAT_KERNEL_CS64 FLAT_RING3_CS64 -#define FLAT_KERNEL_CS32 FLAT_RING3_CS32 -#define FLAT_KERNEL_CS FLAT_KERNEL_CS64 -#define FLAT_KERNEL_SS64 FLAT_RING3_SS64 -#define FLAT_KERNEL_SS32 FLAT_RING3_SS32 -#define FLAT_KERNEL_SS FLAT_KERNEL_SS64 - -#define FLAT_USER_DS64 FLAT_RING3_DS64 -#define FLAT_USER_DS32 FLAT_RING3_DS32 -#define FLAT_USER_DS FLAT_USER_DS64 -#define FLAT_USER_CS64 FLAT_RING3_CS64 -#define FLAT_USER_CS32 FLAT_RING3_CS32 -#define FLAT_USER_CS FLAT_USER_CS64 -#define FLAT_USER_SS64 FLAT_RING3_SS64 -#define FLAT_USER_SS32 FLAT_RING3_SS32 -#define FLAT_USER_SS FLAT_USER_SS64 - -#define __HYPERVISOR_VIRT_START 0xFFFF800000000000 -#define __HYPERVISOR_VIRT_END 0xFFFF880000000000 -#define __MACH2PHYS_VIRT_START 0xFFFF800000000000 -#define __MACH2PHYS_VIRT_END 0xFFFF804000000000 - -#ifndef HYPERVISOR_VIRT_START -#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START) -#define HYPERVISOR_VIRT_END mk_unsigned_long(__HYPERVISOR_VIRT_END) -#endif - -#define MACH2PHYS_VIRT_START mk_unsigned_long(__MACH2PHYS_VIRT_START) -#define MACH2PHYS_VIRT_END mk_unsigned_long(__MACH2PHYS_VIRT_END) -#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>3) -#ifndef machine_to_phys_mapping -#define machine_to_phys_mapping ((unsigned long *)HYPERVISOR_VIRT_START) -#endif - -/* - * int HYPERVISOR_set_segment_base(unsigned int which, unsigned long base) - * @which == SEGBASE_* ; @base == 64-bit base address - * Returns 0 on success. - */ -#define SEGBASE_FS 0 -#define SEGBASE_GS_USER 1 -#define SEGBASE_GS_KERNEL 2 -#define SEGBASE_GS_USER_SEL 3 /* Set user %gs specified in base[15:0] */ - -/* - * int HYPERVISOR_iret(void) - * All arguments are on the kernel stack, in the following format. - * Never returns if successful. Current kernel context is lost. - * The saved CS is mapped as follows: - * RING0 -> RING3 kernel mode. - * RING1 -> RING3 kernel mode. - * RING2 -> RING3 kernel mode. - * RING3 -> RING3 user mode. - * However RING0 indicates that the guest kernel should return to iteself - * directly with - * orb $3,1*8(%rsp) - * iretq - * If flags contains VGCF_in_syscall: - * Restore RAX, RIP, RFLAGS, RSP. - * Discard R11, RCX, CS, SS. - * Otherwise: - * Restore RAX, R11, RCX, CS:RIP, RFLAGS, SS:RSP. - * All other registers are saved on hypercall entry and restored to user. - */ -/* Guest exited in SYSCALL context? Return to guest with SYSRET? */ -#define _VGCF_in_syscall 8 -#define VGCF_in_syscall (1<<_VGCF_in_syscall) -#define VGCF_IN_SYSCALL VGCF_in_syscall - -#ifndef __ASSEMBLY__ - -struct iret_context { - /* Top of stack (%rsp at point of hypercall). */ - uint64_t rax, r11, rcx, flags, rip, cs, rflags, rsp, ss; - /* Bottom of iret stack frame. */ -}; - -#if defined(__GNUC__) && !defined(__STRICT_ANSI__) -/* Anonymous union includes both 32- and 64-bit names (e.g., eax/rax). */ -#define __DECL_REG(name) union { \ - uint64_t r ## name, e ## name; \ - uint32_t _e ## name; \ -} -#else -/* Non-gcc sources must always use the proper 64-bit name (e.g., rax). */ -#define __DECL_REG(name) uint64_t r ## name -#endif - -struct cpu_user_regs { - uint64_t r15; - uint64_t r14; - uint64_t r13; - uint64_t r12; - __DECL_REG(bp); - __DECL_REG(bx); - uint64_t r11; - uint64_t r10; - uint64_t r9; - uint64_t r8; - __DECL_REG(ax); - __DECL_REG(cx); - __DECL_REG(dx); - __DECL_REG(si); - __DECL_REG(di); - uint32_t error_code; /* private */ - uint32_t entry_vector; /* private */ - __DECL_REG(ip); - uint16_t cs, _pad0[1]; - uint8_t saved_upcall_mask; - uint8_t _pad1[3]; - __DECL_REG(flags); /* rflags.IF == !saved_upcall_mask */ - __DECL_REG(sp); - uint16_t ss, _pad2[3]; - uint16_t es, _pad3[3]; - uint16_t ds, _pad4[3]; - uint16_t fs, _pad5[3]; /* Non-zero => takes precedence over fs_base. */ - uint16_t gs, _pad6[3]; /* Non-zero => takes precedence over gs_base_usr. */ -}; -typedef struct cpu_user_regs cpu_user_regs_t; -DEFINE_XEN_GUEST_HANDLE(cpu_user_regs_t); - -#undef __DECL_REG - -#define xen_pfn_to_cr3(pfn) ((unsigned long)(pfn) << 12) -#define xen_cr3_to_pfn(cr3) ((unsigned long)(cr3) >> 12) - -struct arch_vcpu_info { - unsigned long cr2; - unsigned long pad; /* sizeof(vcpu_info_t) == 64 */ -}; -typedef struct arch_vcpu_info arch_vcpu_info_t; - -typedef unsigned long xen_callback_t; - -#endif /* !__ASSEMBLY__ */ - -#endif /* __XEN_PUBLIC_ARCH_X86_XEN_X86_64_H__ */ - -/* - * Local variables: - * mode: C - * c-file-style: "BSD" - * c-basic-offset: 4 - * tab-width: 4 - * indent-tabs-mode: nil - * End: - */ diff --git a/qemu/roms/ipxe/src/include/xen/arch-x86/xen.h b/qemu/roms/ipxe/src/include/xen/arch-x86/xen.h deleted file mode 100644 index d75528f04..000000000 --- a/qemu/roms/ipxe/src/include/xen/arch-x86/xen.h +++ /dev/null @@ -1,275 +0,0 @@ -/****************************************************************************** - * arch-x86/xen.h - * - * Guest OS interface to x86 Xen. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Copyright (c) 2004-2006, K A Fraser - */ - -#include "../xen.h" - -#ifndef __XEN_PUBLIC_ARCH_X86_XEN_H__ -#define __XEN_PUBLIC_ARCH_X86_XEN_H__ - -FILE_LICENCE ( MIT ); - -/* Structural guest handles introduced in 0x00030201. */ -#if __XEN_INTERFACE_VERSION__ >= 0x00030201 -#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \ - typedef struct { type *p; } __guest_handle_ ## name -#else -#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \ - typedef type * __guest_handle_ ## name -#endif - -/* - * XEN_GUEST_HANDLE represents a guest pointer, when passed as a field - * in a struct in memory. - * XEN_GUEST_HANDLE_PARAM represent a guest pointer, when passed as an - * hypercall argument. - * XEN_GUEST_HANDLE_PARAM and XEN_GUEST_HANDLE are the same on X86 but - * they might not be on other architectures. - */ -#define __DEFINE_XEN_GUEST_HANDLE(name, type) \ - ___DEFINE_XEN_GUEST_HANDLE(name, type); \ - ___DEFINE_XEN_GUEST_HANDLE(const_##name, const type) -#define DEFINE_XEN_GUEST_HANDLE(name) __DEFINE_XEN_GUEST_HANDLE(name, name) -#define __XEN_GUEST_HANDLE(name) __guest_handle_ ## name -#define XEN_GUEST_HANDLE(name) __XEN_GUEST_HANDLE(name) -#define XEN_GUEST_HANDLE_PARAM(name) XEN_GUEST_HANDLE(name) -#define set_xen_guest_handle_raw(hnd, val) do { (hnd).p = val; } while (0) -#ifdef __XEN_TOOLS__ -#define get_xen_guest_handle(val, hnd) do { val = (hnd).p; } while (0) -#endif -#define set_xen_guest_handle(hnd, val) set_xen_guest_handle_raw(hnd, val) - -#if defined(__i386__) -#include "xen-x86_32.h" -#elif defined(__x86_64__) -#include "xen-x86_64.h" -#endif - -#ifndef __ASSEMBLY__ -typedef unsigned long xen_pfn_t; -#define PRI_xen_pfn "lx" -#endif - -#define XEN_HAVE_PV_GUEST_ENTRY 1 - -#define XEN_HAVE_PV_UPCALL_MASK 1 - -/* - * `incontents 200 segdesc Segment Descriptor Tables - */ -/* - * ` enum neg_errnoval - * ` HYPERVISOR_set_gdt(const xen_pfn_t frames[], unsigned int entries); - * ` - */ -/* - * A number of GDT entries are reserved by Xen. These are not situated at the - * start of the GDT because some stupid OSes export hard-coded selector values - * in their ABI. These hard-coded values are always near the start of the GDT, - * so Xen places itself out of the way, at the far end of the GDT. - * - * NB The LDT is set using the MMUEXT_SET_LDT op of HYPERVISOR_mmuext_op - */ -#define FIRST_RESERVED_GDT_PAGE 14 -#define FIRST_RESERVED_GDT_BYTE (FIRST_RESERVED_GDT_PAGE * 4096) -#define FIRST_RESERVED_GDT_ENTRY (FIRST_RESERVED_GDT_BYTE / 8) - - -/* - * ` enum neg_errnoval - * ` HYPERVISOR_update_descriptor(u64 pa, u64 desc); - * ` - * ` @pa The machine physical address of the descriptor to - * ` update. Must be either a descriptor page or writable. - * ` @desc The descriptor value to update, in the same format as a - * ` native descriptor table entry. - */ - -/* Maximum number of virtual CPUs in legacy multi-processor guests. */ -#define XEN_LEGACY_MAX_VCPUS 32 - -#ifndef __ASSEMBLY__ - -typedef unsigned long xen_ulong_t; -#define PRI_xen_ulong "lx" - -/* - * ` enum neg_errnoval - * ` HYPERVISOR_stack_switch(unsigned long ss, unsigned long esp); - * ` - * Sets the stack segment and pointer for the current vcpu. - */ - -/* - * ` enum neg_errnoval - * ` HYPERVISOR_set_trap_table(const struct trap_info traps[]); - * ` - */ -/* - * Send an array of these to HYPERVISOR_set_trap_table(). - * Terminate the array with a sentinel entry, with traps[].address==0. - * The privilege level specifies which modes may enter a trap via a software - * interrupt. On x86/64, since rings 1 and 2 are unavailable, we allocate - * privilege levels as follows: - * Level == 0: Noone may enter - * Level == 1: Kernel may enter - * Level == 2: Kernel may enter - * Level == 3: Everyone may enter - */ -#define TI_GET_DPL(_ti) ((_ti)->flags & 3) -#define TI_GET_IF(_ti) ((_ti)->flags & 4) -#define TI_SET_DPL(_ti,_dpl) ((_ti)->flags |= (_dpl)) -#define TI_SET_IF(_ti,_if) ((_ti)->flags |= ((!!(_if))<<2)) -struct trap_info { - uint8_t vector; /* exception vector */ - uint8_t flags; /* 0-3: privilege level; 4: clear event enable? */ - uint16_t cs; /* code selector */ - unsigned long address; /* code offset */ -}; -typedef struct trap_info trap_info_t; -DEFINE_XEN_GUEST_HANDLE(trap_info_t); - -typedef uint64_t tsc_timestamp_t; /* RDTSC timestamp */ - -/* - * The following is all CPU context. Note that the fpu_ctxt block is filled - * in by FXSAVE if the CPU has feature FXSR; otherwise FSAVE is used. - * - * Also note that when calling DOMCTL_setvcpucontext and VCPU_initialise - * for HVM and PVH guests, not all information in this structure is updated: - * - * - For HVM guests, the structures read include: fpu_ctxt (if - * VGCT_I387_VALID is set), flags, user_regs, debugreg[*] - * - * - PVH guests are the same as HVM guests, but additionally use ctrlreg[3] to - * set cr3. All other fields not used should be set to 0. - */ -struct vcpu_guest_context { - /* FPU registers come first so they can be aligned for FXSAVE/FXRSTOR. */ - struct { char x[512]; } fpu_ctxt; /* User-level FPU registers */ -#define VGCF_I387_VALID (1<<0) -#define VGCF_IN_KERNEL (1<<2) -#define _VGCF_i387_valid 0 -#define VGCF_i387_valid (1<<_VGCF_i387_valid) -#define _VGCF_in_kernel 2 -#define VGCF_in_kernel (1<<_VGCF_in_kernel) -#define _VGCF_failsafe_disables_events 3 -#define VGCF_failsafe_disables_events (1<<_VGCF_failsafe_disables_events) -#define _VGCF_syscall_disables_events 4 -#define VGCF_syscall_disables_events (1<<_VGCF_syscall_disables_events) -#define _VGCF_online 5 -#define VGCF_online (1<<_VGCF_online) - unsigned long flags; /* VGCF_* flags */ - struct cpu_user_regs user_regs; /* User-level CPU registers */ - struct trap_info trap_ctxt[256]; /* Virtual IDT */ - unsigned long ldt_base, ldt_ents; /* LDT (linear address, # ents) */ - unsigned long gdt_frames[16], gdt_ents; /* GDT (machine frames, # ents) */ - unsigned long kernel_ss, kernel_sp; /* Virtual TSS (only SS1/SP1) */ - /* NB. User pagetable on x86/64 is placed in ctrlreg[1]. */ - unsigned long ctrlreg[8]; /* CR0-CR7 (control registers) */ - unsigned long debugreg[8]; /* DB0-DB7 (debug registers) */ -#ifdef __i386__ - unsigned long event_callback_cs; /* CS:EIP of event callback */ - unsigned long event_callback_eip; - unsigned long failsafe_callback_cs; /* CS:EIP of failsafe callback */ - unsigned long failsafe_callback_eip; -#else - unsigned long event_callback_eip; - unsigned long failsafe_callback_eip; -#ifdef __XEN__ - union { - unsigned long syscall_callback_eip; - struct { - unsigned int event_callback_cs; /* compat CS of event cb */ - unsigned int failsafe_callback_cs; /* compat CS of failsafe cb */ - }; - }; -#else - unsigned long syscall_callback_eip; -#endif -#endif - unsigned long vm_assist; /* VMASST_TYPE_* bitmap */ -#ifdef __x86_64__ - /* Segment base addresses. */ - uint64_t fs_base; - uint64_t gs_base_kernel; - uint64_t gs_base_user; -#endif -}; -typedef struct vcpu_guest_context vcpu_guest_context_t; -DEFINE_XEN_GUEST_HANDLE(vcpu_guest_context_t); - -struct arch_shared_info { - unsigned long max_pfn; /* max pfn that appears in table */ - /* Frame containing list of mfns containing list of mfns containing p2m. */ - xen_pfn_t pfn_to_mfn_frame_list_list; - unsigned long nmi_reason; - uint64_t pad[32]; -}; -typedef struct arch_shared_info arch_shared_info_t; - -#endif /* !__ASSEMBLY__ */ - -/* - * ` enum neg_errnoval - * ` HYPERVISOR_fpu_taskswitch(int set); - * ` - * Sets (if set!=0) or clears (if set==0) CR0.TS. - */ - -/* - * ` enum neg_errnoval - * ` HYPERVISOR_set_debugreg(int regno, unsigned long value); - * - * ` unsigned long - * ` HYPERVISOR_get_debugreg(int regno); - * For 0<=reg<=7, returns the debug register value. - * For other values of reg, returns ((unsigned long)-EINVAL). - * (Unfortunately, this interface is defective.) - */ - -/* - * Prefix forces emulation of some non-trapping instructions. - * Currently only CPUID. - */ -#ifdef __ASSEMBLY__ -#define XEN_EMULATE_PREFIX .byte 0x0f,0x0b,0x78,0x65,0x6e ; -#define XEN_CPUID XEN_EMULATE_PREFIX cpuid -#else -#define XEN_EMULATE_PREFIX ".byte 0x0f,0x0b,0x78,0x65,0x6e ; " -#define XEN_CPUID XEN_EMULATE_PREFIX "cpuid" -#endif - -#endif /* __XEN_PUBLIC_ARCH_X86_XEN_H__ */ - -/* - * Local variables: - * mode: C - * c-file-style: "BSD" - * c-basic-offset: 4 - * tab-width: 4 - * indent-tabs-mode: nil - * End: - */ |