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freebsd-src/lib/libkvm/kvm_amd64.h

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Add support to libkvm for reading vmcores from other architectures. - Add a kvaddr_type to represent kernel virtual addresses instead of unsigned long. - Add a struct kvm_nlist which is a stripped down version of struct nlist that uses kvaddr_t for n_value. - Add a kvm_native() routine that returns true if an open kvm descriptor is for a native kernel and memory image. - Add a kvm_open2() function similar to kvm_openfiles(). It drops the unused 'swapfile' argument and adds a new function pointer argument for a symbol resolving function. Native kernels still use _fdnlist() from libc to resolve symbols if a resolver function is not supplied, but cross kernels require a resolver. - Add a kvm_nlist2() function similar to kvm_nlist() except that it uses struct kvm_nlist instead of struct nlist. - Add a kvm_read2() function similar to kvm_read() except that it uses kvaddr_t instead of unsigned long for the kernel virtual address. - Add a new kvm_arch switch of routines needed by a vmcore backend. Each backend is responsible for implementing kvm_read2() for a given vmcore format. - Use libelf to read headers from ELF kernels and cores (except for powerpc cores). - Add internal helper routines for the common page offset hash table used by the minidump backends. - Port all of the existing kvm backends to implement a kvm_arch switch and to be cross-friendly by using private constants instead of ones that vary by platform (e.g. PAGE_SIZE). Static assertions are present when a given backend is compiled natively to ensure the private constants match the real ones. - Enable all of the existing vmcore backends on all platforms. This means that libkvm on any platform should be able to perform KVA translation and read data from a vmcore of any platform. Tested on: amd64, i386, sparc64 (marius) Differential Revision: https://reviews.freebsd.org/D3341
2015-11-27 18:58:26 +00:00
/*-
* Copyright (c) 2015 John H. Baldwin <jhb@FreeBSD.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*/
#ifndef __KVM_AMD64_H__
#define __KVM_AMD64_H__
#ifdef __amd64__
#include <vm/vm.h>
#include <vm/pmap.h>
#endif
typedef uint64_t amd64_physaddr_t;
typedef uint64_t amd64_pte_t;
typedef uint64_t amd64_pde_t;
typedef uint64_t amd64_pdpe_t;
typedef uint64_t amd64_pml4e_t;
#define AMD64_NPTEPG (AMD64_PAGE_SIZE / sizeof(amd64_pte_t))
#define AMD64_PAGE_SHIFT 12
#define AMD64_PAGE_SIZE (1 << AMD64_PAGE_SHIFT)
#define AMD64_PAGE_MASK (AMD64_PAGE_SIZE - 1)
#define AMD64_NPDEPG (AMD64_PAGE_SIZE / sizeof(amd64_pde_t))
#define AMD64_PDRSHIFT 21
#define AMD64_NBPDR (1 << AMD64_PDRSHIFT)
#define AMD64_PDRMASK (AMD64_NBPDR - 1)
#define AMD64_NPDPEPG (AMD64_PAGE_SIZE / sizeof(amd64_pdpe_t))
#define AMD64_PDPSHIFT 30
#define AMD64_NBPDP (1 << AMD64_PDPSHIFT)
#define AMD64_PDPMASK (AMD64_NBPDP - 1)
#define AMD64_NPML4EPG (AMD64_PAGE_SIZE / sizeof(amd64_pml4e_t))
#define AMD64_PML4SHIFT 39
libkvm: fix build failures
2017-11-12 01:36:48 +00:00
#define AMD64_PG_NX (1ULL << 63)
Add support to libkvm for reading vmcores from other architectures. - Add a kvaddr_type to represent kernel virtual addresses instead of unsigned long. - Add a struct kvm_nlist which is a stripped down version of struct nlist that uses kvaddr_t for n_value. - Add a kvm_native() routine that returns true if an open kvm descriptor is for a native kernel and memory image. - Add a kvm_open2() function similar to kvm_openfiles(). It drops the unused 'swapfile' argument and adds a new function pointer argument for a symbol resolving function. Native kernels still use _fdnlist() from libc to resolve symbols if a resolver function is not supplied, but cross kernels require a resolver. - Add a kvm_nlist2() function similar to kvm_nlist() except that it uses struct kvm_nlist instead of struct nlist. - Add a kvm_read2() function similar to kvm_read() except that it uses kvaddr_t instead of unsigned long for the kernel virtual address. - Add a new kvm_arch switch of routines needed by a vmcore backend. Each backend is responsible for implementing kvm_read2() for a given vmcore format. - Use libelf to read headers from ELF kernels and cores (except for powerpc cores). - Add internal helper routines for the common page offset hash table used by the minidump backends. - Port all of the existing kvm backends to implement a kvm_arch switch and to be cross-friendly by using private constants instead of ones that vary by platform (e.g. PAGE_SIZE). Static assertions are present when a given backend is compiled natively to ensure the private constants match the real ones. - Enable all of the existing vmcore backends on all platforms. This means that libkvm on any platform should be able to perform KVA translation and read data from a vmcore of any platform. Tested on: amd64, i386, sparc64 (marius) Differential Revision: https://reviews.freebsd.org/D3341
2015-11-27 18:58:26 +00:00
#define AMD64_PG_V 0x001
libkvm: fix build failures
2017-11-12 01:36:48 +00:00
#define AMD64_PG_RW 0x002
Add support to libkvm for reading vmcores from other architectures. - Add a kvaddr_type to represent kernel virtual addresses instead of unsigned long. - Add a struct kvm_nlist which is a stripped down version of struct nlist that uses kvaddr_t for n_value. - Add a kvm_native() routine that returns true if an open kvm descriptor is for a native kernel and memory image. - Add a kvm_open2() function similar to kvm_openfiles(). It drops the unused 'swapfile' argument and adds a new function pointer argument for a symbol resolving function. Native kernels still use _fdnlist() from libc to resolve symbols if a resolver function is not supplied, but cross kernels require a resolver. - Add a kvm_nlist2() function similar to kvm_nlist() except that it uses struct kvm_nlist instead of struct nlist. - Add a kvm_read2() function similar to kvm_read() except that it uses kvaddr_t instead of unsigned long for the kernel virtual address. - Add a new kvm_arch switch of routines needed by a vmcore backend. Each backend is responsible for implementing kvm_read2() for a given vmcore format. - Use libelf to read headers from ELF kernels and cores (except for powerpc cores). - Add internal helper routines for the common page offset hash table used by the minidump backends. - Port all of the existing kvm backends to implement a kvm_arch switch and to be cross-friendly by using private constants instead of ones that vary by platform (e.g. PAGE_SIZE). Static assertions are present when a given backend is compiled natively to ensure the private constants match the real ones. - Enable all of the existing vmcore backends on all platforms. This means that libkvm on any platform should be able to perform KVA translation and read data from a vmcore of any platform. Tested on: amd64, i386, sparc64 (marius) Differential Revision: https://reviews.freebsd.org/D3341
2015-11-27 18:58:26 +00:00
#define AMD64_PG_PS 0x080
#define AMD64_PG_FRAME (0x000ffffffffff000)
#define AMD64_PG_PS_FRAME (0x000fffffffe00000)
#define AMD64_PG_1GB_FRAME (0x000fffffc0000000)
#ifdef __amd64__
_Static_assert(NPTEPG == AMD64_NPTEPG, "NPTEPG mismatch");
_Static_assert(PAGE_SHIFT == AMD64_PAGE_SHIFT, "PAGE_SHIFT mismatch");
_Static_assert(PAGE_SIZE == AMD64_PAGE_SIZE, "PAGE_SIZE mismatch");
_Static_assert(PAGE_MASK == AMD64_PAGE_MASK, "PAGE_MASK mismatch");
_Static_assert(NPDEPG == AMD64_NPDEPG, "NPDEPG mismatch");
_Static_assert(PDRSHIFT == AMD64_PDRSHIFT, "PDRSHIFT mismatch");
_Static_assert(NBPDR == AMD64_NBPDR, "NBPDR mismatch");
_Static_assert(PDRMASK == AMD64_PDRMASK, "PDRMASK mismatch");
_Static_assert(NPDPEPG == AMD64_NPDPEPG, "NPDPEPG mismatch");
_Static_assert(PDPSHIFT == AMD64_PDPSHIFT, "PDPSHIFT mismatch");
_Static_assert(NBPDP == AMD64_NBPDP, "NBPDP mismatch");
_Static_assert(PDPMASK == AMD64_PDPMASK, "PDPMASK mismatch");
_Static_assert(NPML4EPG == AMD64_NPML4EPG, "NPML4EPG mismatch");
_Static_assert(PML4SHIFT == AMD64_PML4SHIFT, "PML4SHIFT mismatch");
_Static_assert(PG_V == AMD64_PG_V, "PG_V mismatch");
_Static_assert(PG_PS == AMD64_PG_PS, "PG_PS mismatch");
_Static_assert(PG_FRAME == AMD64_PG_FRAME, "PG_FRAME mismatch");
_Static_assert(PG_PS_FRAME == AMD64_PG_PS_FRAME, "PG_PS_FRAME mismatch");
#endif
int _amd64_native(kvm_t *);
#endif /* !__KVM_AMD64_H__ */
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