diff options
author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2009-12-16 01:11:51 +0100 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2009-12-16 01:11:51 +0100 |
commit | 55dbc2b5d857d35262ad3116803dfb31b733d031 (patch) | |
tree | 9b9a7d7952ff74855de2a6c348e9c856a531158d /xen/public/arch-x86/xen-x86_32.h | |
parent | 870925205c78415dc4c594bfae9de8eb31745b81 (diff) |
Add Xen support
2009-03-11 Samuel Thibault <samuel.thibault@ens-lyon.org>
* i386/i386/vm_param.h (VM_MIN_KERNEL_ADDRESS) [MACH_XEN]: Set to
0x20000000.
* i386/i386/i386asm.sym (pfn_list) [VM_MIN_KERNEL_ADDRESS ==
LINEAR_MIN_KERNEL_ADDRESS]: Define to constant PFN_LIST.
2009-02-27 Samuel Thibault <samuel.thibault@ens-lyon.org>
* i386/intel/pmap.c [MACH_HYP] (INVALIDATE_TLB): Call hyp_invlpg
instead of flush_tlb when e - s is compile-time known to be
PAGE_SIZE.
2008-11-27 Samuel Thibault <samuel.thibault@ens-lyon.org>
* i386/configfrag.ac (enable_pae): Enable by default on the Xen
platform.
2007-11-14 Samuel Thibault <samuel.thibault@ens-lyon.org>
* i386/i386at/model_dep.c (machine_relax): New function.
(c_boot_entry): Refuse to boot as dom0.
2007-10-17 Samuel Thibault <samuel.thibault@ens-lyon.org>
* i386/i386/fpu.c [MACH_XEN]: Disable unused fpintr().
2007-08-12 Samuel Thibault <samuel.thibault@ens-lyon.org>
* Makefile.am (clib_routines): Add _START.
* i386/xen/xen_boothdr: Use _START for VIRT_BASE and PADDR_OFFSET. Add
GUEST_VERSION and XEN_ELFNOTE_FEATURES.
2007-06-13 Samuel Thibault <samuel.thibault@ens-lyon.org>
* i386/i386/user_ldt.h (user_ldt) [MACH_XEN]: Add alloc field.
* i386/i386/user_ldt.c (i386_set_ldt) [MACH_XEN]: Round allocation of
LDT to a page, set back LDT pages read/write before freeing them.
(user_ldt_free) [MACH_XEN]: Likewise.
2007-04-18 Samuel Thibault <samuel.thibault@ens-lyon.org>
* device/ds_routines.c [MACH_HYP]: Add hypervisor block and net devices.
2007-02-19 Thomas Schwinge <tschwinge@gnu.org>
* i386/xen/Makefrag.am [PLATFORM_xen] (gnumach_LINKFLAGS): Define.
* Makefrag.am: Include `xen/Makefrag.am'.
* configure.ac: Include `xen/configfrag.ac'.
(--enable-platform): Support the `xen' platform.
* i386/configfrag.ac: Likewise.
* i386/Makefrag.am [PLATFORM_xen]: Include `i386/xen/Makefrag.am'.
2007-02-19 Samuel Thibault <samuel.thibault@ens-lyon.org>
Thomas Schwinge <tschwinge@gnu.org>
* i386/xen/Makefrag.am: New file.
* xen/Makefrag.am: Likewise.
* xen/configfrag.ac: Likewise.
2007-02-11 (and later dates) Samuel Thibault <samuel.thibault@ens-lyon.org>
Xen support
* Makefile.am (clib_routines): Add _start.
* Makefrag.am (include_mach_HEADERS): Add include/mach/xen.h.
* device/cons.c (cnputc): Call hyp_console_write.
* i386/Makefrag.am (libkernel_a_SOURCES): Move non-Xen source to
[PLATFORM_at].
* i386/i386/debug_trace.S: Include <i386/xen.h>
* i386/i386/fpu.c [MACH_HYP] (init_fpu): Call set_ts() and clear_ts(),
do not enable CR0_EM.
* i386/i386/gdt.c: Include <mach/xen.h> and <intel/pmap.h>.
[MACH_XEN]: Make gdt array extern.
[MACH_XEN] (gdt_init): Register gdt with hypervisor. Request 4gb
segments assist. Shift la_shift.
[MACH_PSEUDO_PHYS] (gdt_init): Shift pfn_list.
* i386/i386/gdt.h [MACH_XEN]: Don't define KERNEL_LDT and LINEAR_DS.
* i386/i386/i386asm.sym: Include <i386/xen.h>.
[MACH_XEN]: Remove KERNEL_LDT, Add shared_info's CPU_CLI, CPU_PENDING,
CPU_PENDING_SEL, PENDING, EVTMASK and CR2.
* i386/i386/idt.c [MACH_HYP] (idt_init): Register trap table with
hypervisor.
* i386/i386/idt_inittab.S: Include <i386/i386asm.h>.
[MACH_XEN]: Set IDT_ENTRY() for hypervisor. Set trap table terminator.
* i386/i386/ktss.c [MACH_XEN] (ktss_init): Request exception task switch
from hypervisor.
* i386/i386/ldt.c: Include <mach/xen.h> and <intel/pmap.h>
[MACH_XEN]: Make ldt array extern.
[MACH_XEN] (ldt_init): Set ldt readwrite.
[MACH_HYP] (ldt_init): Register ldt with hypervisor.
* i386/i386/locore.S: Include <i386/xen.h>. Handle KERNEL_RING == 1
case.
[MACH_XEN]: Read hyp_shared_info's CR2 instead of %cr2.
[MACH_PSEUDO_PHYS]: Add mfn_to_pfn computation.
[MACH_HYP]: Drop Cyrix I/O-based detection. Read cr3 instead of %cr3.
Make hypervisor call for pte invalidation.
* i386/i386/mp_desc.c: Include <mach/xen.h>.
[MACH_HYP] (mp_desc_init): Panic.
* i386/i386/pcb.c: Include <mach/xen.h>.
[MACH_XEN] (switch_ktss): Request stack switch from hypervisor.
[MACH_HYP] (switch_ktss): Request ldt and gdt switch from hypervisor.
* i386/i386/phys.c: Include <mach/xen.h>
[MACH_PSEUDO_PHYS] (kvtophys): Do page translation.
* i386/i386/proc_reg.h [MACH_HYP] (cr3): New declaration.
(set_cr3, get_cr3, set_ts, clear_ts): Implement macros.
* i386/i386/seg.h [MACH_HYP]: Define KERNEL_RING macro. Include
<mach/xen.h>
[MACH_XEN] (fill_descriptor): Register descriptor with hypervisor.
* i386/i386/spl.S: Include <i386/xen.h> and <i386/i386/asm.h>
[MACH_XEN] (pic_mask): #define to int_mask.
[MACH_XEN] (SETMASK): Implement.
* i386/i386/vm_param.h [MACH_XEN] (HYP_VIRT_START): New macro.
[MACH_XEN]: Set VM_MAX_KERNEL_ADDRESS to HYP_VIRT_START-
LINEAR_MIN_KERNEL_ADDRESS + VM_MIN_KERNEL_ADDRESS. Increase
KERNEL_STACK_SIZE and INTSTACK_SIZE to 4 pages.
* i386/i386at/conf.c [MACH_HYP]: Remove hardware devices, add hypervisor
console device.
* i386/i386at/cons_conf.c [MACH_HYP]: Add hypervisor console device.
* i386/i386at/model_dep.c: Include <sys/types.h>, <mach/xen.h>.
[MACH_XEN] Include <xen/console.h>, <xen/store.h>, <xen/evt.h>,
<xen/xen.h>.
[MACH_PSEUDO_PHYS]: New boot_info, mfn_list, pfn_list variables.
[MACH_XEN]: New la_shift variable.
[MACH_HYP] (avail_next, mem_size_init): Drop BIOS skipping mecanism.
[MACH_HYP] (machine_init): Call hyp_init(), drop hardware
initialization.
[MACH_HYP] (machine_idle): Call hyp_idle().
[MACH_HYP] (halt_cpu): Call hyp_halt().
[MACH_HYP] (halt_all_cpus): Call hyp_reboot() or hyp_halt().
[MACH_HYP] (i386at_init): Initialize with hypervisor.
[MACH_XEN] (c_boot_entry): Add Xen-specific initialization.
[MACH_HYP] (init_alloc_aligned, pmap_valid_page): Drop zones skipping
mecanism.
* i386/intel/pmap.c: Include <mach/xen.h>.
[MACH_PSEUDO_PHYS] (WRITE_PTE): Do page translation.
[MACH_HYP] (INVALIDATE_TLB): Request invalidation from hypervisor.
[MACH_XEN] (pmap_map_bd, pmap_create, pmap_destroy, pmap_remove_range)
(pmap_page_protect, pmap_protect, pmap_enter, pmap_change_wiring)
(pmap_attribute_clear, pmap_unmap_page_zero, pmap_collect): Request MMU
update from hypervisor.
[MACH_XEN] (pmap_bootstrap): Request pagetable initialization from
hypervisor.
[MACH_XEN] (pmap_set_page_readwrite, pmap_set_page_readonly)
(pmap_set_page_readonly_init, pmap_clear_bootstrap_pagetable)
(pmap_map_mfn): New functions.
* i386/intel/pmap.h [MACH_XEN] (INTEL_PTE_GLOBAL): Disable global page
support.
[MACH_PSEUDO_PHYS] (pte_to_pa): Do page translation.
[MACH_XEN] (pmap_set_page_readwrite, pmap_set_page_readonly)
(pmap_set_page_readonly_init, pmap_clear_bootstrap_pagetable)
(pmap_map_mfn): Declare functions.
* i386/i386/xen.h: New file.
* i386/xen/xen.c: New file.
* i386/xen/xen_boothdr.S: New file.
* i386/xen/xen_locore.S: New file.
* include/mach/xen.h: New file.
* kern/bootstrap.c [MACH_XEN] (boot_info): Declare variable.
[MACH_XEN] (bootstrap_create): Rebase multiboot header.
* kern/debug.c: Include <mach/xen.h>.
[MACH_HYP] (panic): Call hyp_crash() without delay.
* linux/dev/include/asm-i386/segment.h [MACH_HYP] (KERNEL_CS)
(KERNEL_DS): Use ring 1.
* xen/block.c: New file.
* xen/block.h: Likewise.
* xen/console.c: Likewise.
* xen/console.h: Likewise.
* xen/evt.c: Likewise.
* xen/evt.h: Likewise.
* xen/grant.c: Likewise.
* xen/grant.h: Likewise.
* xen/net.c: Likewise.
* xen/net.h: Likewise.
* xen/ring.c: Likewise.
* xen/ring.h: Likewise.
* xen/store.c: Likewise.
* xen/store.h: Likewise.
* xen/time.c: Likewise.
* xen/time.h: Likewise.
* xen/xen.c: Likewise.
* xen/xen.h: Likewise.
* xen/public/COPYING: Import file from Xen.
* xen/public/callback.h: Likewise.
* xen/public/dom0_ops.h: Likewise.
* xen/public/domctl.h: Likewise.
* xen/public/elfnote.h: Likewise.
* xen/public/elfstructs.h: Likewise.
* xen/public/event_channel.h: Likewise.
* xen/public/features.h: Likewise.
* xen/public/grant_table.h: Likewise.
* xen/public/kexec.h: Likewise.
* xen/public/libelf.h: Likewise.
* xen/public/memory.h: Likewise.
* xen/public/nmi.h: Likewise.
* xen/public/physdev.h: Likewise.
* xen/public/platform.h: Likewise.
* xen/public/sched.h: Likewise.
* xen/public/sysctl.h: Likewise.
* xen/public/trace.h: Likewise.
* xen/public/vcpu.h: Likewise.
* xen/public/version.h: Likewise.
* xen/public/xen-compat.h: Likewise.
* xen/public/xen.h: Likewise.
* xen/public/xencomm.h: Likewise.
* xen/public/xenoprof.h: Likewise.
* xen/public/arch-x86/xen-mca.h: Likewise.
* xen/public/arch-x86/xen-x86_32.h: Likewise.
* xen/public/arch-x86/xen-x86_64.h: Likewise.
* xen/public/arch-x86/xen.h: Likewise.
* xen/public/arch-x86_32.h: Likewise.
* xen/public/arch-x86_64.h: Likewise.
* xen/public/io/blkif.h: Likewise.
* xen/public/io/console.h: Likewise.
* xen/public/io/fbif.h: Likewise.
* xen/public/io/fsif.h: Likewise.
* xen/public/io/kbdif.h: Likewise.
* xen/public/io/netif.h: Likewise.
* xen/public/io/pciif.h: Likewise.
* xen/public/io/protocols.h: Likewise.
* xen/public/io/ring.h: Likewise.
* xen/public/io/tpmif.h: Likewise.
* xen/public/io/xenbus.h: Likewise.
* xen/public/io/xs_wire.h: Likewise.
Diffstat (limited to 'xen/public/arch-x86/xen-x86_32.h')
-rw-r--r-- | xen/public/arch-x86/xen-x86_32.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/xen/public/arch-x86/xen-x86_32.h b/xen/public/arch-x86/xen-x86_32.h new file mode 100644 index 0000000..7cb6a01 --- /dev/null +++ b/xen/public/arch-x86/xen-x86_32.h @@ -0,0 +1,180 @@ +/****************************************************************************** + * 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__ + +/* + * Hypercall interface: + * Input: %ebx, %ecx, %edx, %esi, %edi (arguments 1-5) + * 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) + */ + +#if __XEN_INTERFACE_VERSION__ < 0x00030203 +/* + * Legacy hypercall interface: + * As above, except the entry sequence to the hypervisor is: + * mov $hypercall-number*32,%eax ; int $0x82 + */ +#define TRAP_INSTR "int $0x82" +#endif + +/* + * 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 +#define set_xen_guest_handle(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-set-style: "BSD" + * c-basic-offset: 4 + * tab-width: 4 + * indent-tabs-mode: nil + * End: + */ |