/branches/cs/kernel/arch/ia32xen/include/mm/page.h |
---|
0,0 → 1,257 |
/* |
* Copyright (c) 2006 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ia32xen_mm |
* @{ |
*/ |
/** @file |
*/ |
#ifndef KERN_ia32xen_PAGE_H_ |
#define KERN_ia32xen_PAGE_H_ |
#include <arch/mm/frame.h> |
#define PAGE_WIDTH FRAME_WIDTH |
#define PAGE_SIZE FRAME_SIZE |
#ifdef KERNEL |
#ifndef __ASM__ |
# define KA2PA(x) (((uintptr_t) (x)) - 0x80000000) |
# define PA2KA(x) (((uintptr_t) (x)) + 0x80000000) |
#else |
# define KA2PA(x) ((x) - 0x80000000) |
# define PA2KA(x) ((x) + 0x80000000) |
#endif |
/* |
* Implementation of generic 4-level page table interface. |
* IA-32 has 2-level page tables, so PTL1 and PTL2 are left out. |
*/ |
/* Number of entries in each level. */ |
#define PTL0_ENTRIES_ARCH 1024 |
#define PTL1_ENTRIES_ARCH 0 |
#define PTL2_ENTRIES_ARCH 0 |
#define PTL3_ENTRIES_ARCH 1024 |
/* Page table size for each level. */ |
#define PTL0_SIZE_ARCH ONE_FRAME |
#define PTL1_SIZE_ARCH 0 |
#define PTL2_SIZE_ARCH 0 |
#define PTL3_SIZE_ARCH ONE_FRAME |
/* Macros calculating indices into page tables in each level. */ |
#define PTL0_INDEX_ARCH(vaddr) (((vaddr) >> 22) & 0x3ff) |
#define PTL1_INDEX_ARCH(vaddr) 0 |
#define PTL2_INDEX_ARCH(vaddr) 0 |
#define PTL3_INDEX_ARCH(vaddr) (((vaddr) >> 12) & 0x3ff) |
/* Get PTE address accessors for each level. */ |
#define GET_PTL1_ADDRESS_ARCH(ptl0, i) \ |
((pte_t *) MA2PA((((pte_t *) (ptl0))[(i)].frame_address) << 12)) |
#define GET_PTL2_ADDRESS_ARCH(ptl1, i) \ |
(ptl1) |
#define GET_PTL3_ADDRESS_ARCH(ptl2, i) \ |
(ptl2) |
#define GET_FRAME_ADDRESS_ARCH(ptl3, i) \ |
((uintptr_t) MA2PA((((pte_t *) (ptl3))[(i)].frame_address) << 12)) |
/* Set PTE address accessors for each level. */ |
#define SET_PTL0_ADDRESS_ARCH(ptl0) \ |
{ \ |
mmuext_op_t mmu_ext; \ |
\ |
mmu_ext.cmd = MMUEXT_NEW_BASEPTR; \ |
mmu_ext.mfn = ADDR2PFN(PA2MA(ptl0)); \ |
ASSERT(xen_mmuext_op(&mmu_ext, 1, NULL, DOMID_SELF) == 0); \ |
} |
#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) \ |
{ \ |
mmuext_op_t mmu_ext; \ |
\ |
mmu_ext.cmd = MMUEXT_PIN_L1_TABLE; \ |
mmu_ext.mfn = ADDR2PFN(PA2MA(a)); \ |
ASSERT(xen_mmuext_op(&mmu_ext, 1, NULL, DOMID_SELF) == 0); \ |
\ |
mmu_update_t update; \ |
\ |
update.ptr = PA2MA(KA2PA(&((pte_t *) (ptl0))[(i)])); \ |
update.val = PA2MA(a); \ |
ASSERT(xen_mmu_update(&update, 1, NULL, DOMID_SELF) == 0); \ |
} |
#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a) |
#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a) |
#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) \ |
{ \ |
mmu_update_t update; \ |
\ |
update.ptr = PA2MA(KA2PA(&((pte_t *) (ptl3))[(i)])); \ |
update.val = PA2MA(a); \ |
ASSERT(xen_mmu_update(&update, 1, NULL, DOMID_SELF) == 0); \ |
} |
/* Get PTE flags accessors for each level. */ |
#define GET_PTL1_FLAGS_ARCH(ptl0, i) \ |
get_pt_flags((pte_t *) (ptl0), (index_t) (i)) |
#define GET_PTL2_FLAGS_ARCH(ptl1, i) \ |
PAGE_PRESENT |
#define GET_PTL3_FLAGS_ARCH(ptl2, i) \ |
PAGE_PRESENT |
#define GET_FRAME_FLAGS_ARCH(ptl3, i) \ |
get_pt_flags((pte_t *) (ptl3), (index_t) (i)) |
/* Set PTE flags accessors for each level. */ |
#define SET_PTL1_FLAGS_ARCH(ptl0, i, x) \ |
set_pt_flags((pte_t *) (ptl0), (index_t) (i), (x)) |
#define SET_PTL2_FLAGS_ARCH(ptl1, i, x) |
#define SET_PTL3_FLAGS_ARCH(ptl2, i, x) |
#define SET_FRAME_FLAGS_ARCH(ptl3, i, x) \ |
set_pt_flags((pte_t *) (ptl3), (index_t) (i), (x)) |
/* Query macros for the last level. */ |
#define PTE_VALID_ARCH(p) \ |
(*((uint32_t *) (p)) != 0) |
#define PTE_PRESENT_ARCH(p) \ |
((p)->present != 0) |
#define PTE_GET_FRAME_ARCH(p) \ |
((p)->frame_address << FRAME_WIDTH) |
#define PTE_WRITABLE_ARCH(p) \ |
((p)->writeable != 0) |
#define PTE_EXECUTABLE_ARCH(p) \ |
1 |
#ifndef __ASM__ |
#include <mm/mm.h> |
#include <arch/hypercall.h> |
#include <arch/interrupt.h> |
/* Page fault error codes. */ |
/** When bit on this position is 0, the page fault was caused by a not-present |
* page. |
*/ |
#define PFERR_CODE_P (1 << 0) |
/** When bit on this position is 1, the page fault was caused by a write. */ |
#define PFERR_CODE_RW (1 << 1) |
/** When bit on this position is 1, the page fault was caused in user mode. */ |
#define PFERR_CODE_US (1 << 2) |
/** When bit on this position is 1, a reserved bit was set in page directory. */ |
#define PFERR_CODE_RSVD (1 << 3) |
typedef struct { |
uint64_t ptr; /**< Machine address of PTE */ |
union { /**< New contents of PTE */ |
uint64_t val; |
pte_t pte; |
}; |
} mmu_update_t; |
typedef struct { |
unsigned int cmd; |
union { |
unsigned long mfn; |
unsigned long linear_addr; |
}; |
union { |
unsigned int nr_ents; |
void *vcpumask; |
}; |
} mmuext_op_t; |
static inline int xen_update_va_mapping(const void *va, const pte_t pte, |
const unsigned int flags) |
{ |
return hypercall4(XEN_UPDATE_VA_MAPPING, va, pte, 0, flags); |
} |
static inline int xen_mmu_update(const mmu_update_t *req, |
const unsigned int count, unsigned int *success_count, domid_t domid) |
{ |
return hypercall4(XEN_MMU_UPDATE, req, count, success_count, domid); |
} |
static inline int xen_mmuext_op(const mmuext_op_t *op, const unsigned int count, |
unsigned int *success_count, domid_t domid) |
{ |
return hypercall4(XEN_MMUEXT_OP, op, count, success_count, domid); |
} |
static inline int get_pt_flags(pte_t *pt, index_t i) |
{ |
pte_t *p = &pt[i]; |
return ((!p->page_cache_disable) << PAGE_CACHEABLE_SHIFT | |
(!p->present) << PAGE_PRESENT_SHIFT | |
p->uaccessible << PAGE_USER_SHIFT | |
1 << PAGE_READ_SHIFT | |
p->writeable << PAGE_WRITE_SHIFT | |
1 << PAGE_EXEC_SHIFT | |
p->global << PAGE_GLOBAL_SHIFT); |
} |
static inline void set_pt_flags(pte_t *pt, index_t i, int flags) |
{ |
pte_t p = pt[i]; |
p.page_cache_disable = !(flags & PAGE_CACHEABLE); |
p.present = !(flags & PAGE_NOT_PRESENT); |
p.uaccessible = (flags & PAGE_USER) != 0; |
p.writeable = (flags & PAGE_WRITE) != 0; |
p.global = (flags & PAGE_GLOBAL) != 0; |
/* |
* Ensure that there is at least one bit set even if the present bit is cleared. |
*/ |
p.soft_valid = true; |
mmu_update_t update; |
update.ptr = PA2MA(KA2PA(&(pt[i]))); |
update.pte = p; |
xen_mmu_update(&update, 1, NULL, DOMID_SELF); |
} |
extern void page_arch_init(void); |
extern void page_fault(int n, istate_t *istate); |
#endif /* __ASM__ */ |
#endif /* KERNEL */ |
#endif |
/** @} |
*/ |
/branches/cs/kernel/arch/ia32xen/include/mm/frame.h |
---|
0,0 → 1,57 |
/* |
* Copyright (c) 2006 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ia32xen_mm |
* @{ |
*/ |
/** @file |
*/ |
#ifndef KERN_ia32xen_FRAME_H_ |
#define KERN_ia32xen_FRAME_H_ |
#define FRAME_WIDTH 12 /* 4K */ |
#define FRAME_SIZE (1 << FRAME_WIDTH) |
#ifdef KERNEL |
#ifndef __ASM__ |
#define PA2MA(x) ((start_info.pm_map[((uintptr_t) (x)) >> 12] << 12) + (((uintptr_t) (x)) & 0xfff)) |
#define MA2PA(x) ((mp_map[((uintptr_t) (x)) >> 12] << 12) + (((uintptr_t) (x)) & 0xfff)) |
extern void frame_arch_init(void); |
extern void physmem_print(void); |
#endif /* __ASM__ */ |
#endif /* KERNEL */ |
#endif |
/** @} |
*/ |
/branches/cs/kernel/arch/ia32xen/include/mm/as.h |
---|
0,0 → 1,64 |
/* |
* Copyright (c) 2005 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ia32xen_mm |
* @{ |
*/ |
/** @file |
*/ |
#ifndef KERN_ia32xen_AS_H_ |
#define KERN_ia32xen_AS_H_ |
#define KERNEL_ADDRESS_SPACE_SHADOWED_ARCH 0 |
#define KERNEL_ADDRESS_SPACE_START_ARCH ((unsigned long) 0x80000000) |
#define KERNEL_ADDRESS_SPACE_END_ARCH ((unsigned long) 0xffffffff) |
#define USER_ADDRESS_SPACE_START_ARCH ((unsigned long) 0x00000000) |
#define USER_ADDRESS_SPACE_END_ARCH ((unsigned long) 0x7fffffff) |
#define USTACK_ADDRESS_ARCH (USER_ADDRESS_SPACE_END_ARCH-(PAGE_SIZE-1)) |
typedef struct { |
} as_arch_t; |
#include <genarch/mm/as_pt.h> |
#define as_constructor_arch(as, flags) (as != as) |
#define as_destructor_arch(as) (as != as) |
#define as_create_arch(as, flags) (as != as) |
#define as_install_arch(as) |
#define as_deinstall_arch(as) |
#define as_invalidate_translation_cache(as, page, cnt) |
extern void as_arch_init(void); |
#endif |
/** @} |
*/ |
/branches/cs/kernel/arch/ia32xen/include/mm/asid.h |
---|
0,0 → 1,55 |
/* |
* Copyright (c) 2005 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ia32xen_mm |
* @{ |
*/ |
/** @file |
* @ingroup ia32xen_mm |
*/ |
/* |
* ia32xen has no hardware support for address space identifiers. |
* This file is provided to do nop-implementation of mm/asid.h |
* interface. |
*/ |
#ifndef KERN_ia32xen_ASID_H_ |
#define KERN_ia32xen_ASID_H_ |
typedef int asid_t; |
#define ASID_MAX_ARCH 3 |
#define asid_get() (ASID_START+1) |
#define asid_put(asid) |
#endif |
/** @} |
*/ |
/branches/cs/kernel/arch/ia32xen/include/mm/tlb.h |
---|
0,0 → 1,44 |
/* |
* Copyright (c) 2005 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ia32xen_mm |
* @{ |
*/ |
/** @file |
*/ |
#ifndef KERN_ia32xen_TLB_H_ |
#define KERN_ia32xen_TLB_H_ |
#define tlb_arch_init() |
#define tlb_print() |
#endif |
/** @} |
*/ |