OrgACRN
/
acrn-hypervisor
mirror of https://github.com/projectacrn/acrn-hypervisor.git
1
0
Fork 0
Code Issues Releases Wiki Activity
acrn-hypervisor/hypervisor/boot/include/reloc.h

20 lines
428 B
C
Raw Normal View History

hv: add code to fixup ELF relocation sections For UEFI boot, currently EFI application loads hypervisor to the hard coded COMNFIG_RAM_START, which may cause it fail to boot if this address is not available in the target. This patch series resolve this issue by allocating memory for hypervisor at run time, and do relocation fixup if the allocated address is different from the base address that the hypervisor is built. The summary of the first patch [1/6] in this series: In x86_64 ELF, .rela sections hold information of symbols which must be relocated before being referenced. This patch adds code to fixup .rela sections with the relocated offset, also, it provides utilities to assist address fixup Signed-off-by: Zheng Gen <gen.zheng@intel.com> Signed-off-by: Zide Chen <zide.chen@intel.com> Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
2018-06-22 23:15:12 +08:00
/*
* Copyright (C) <2018> Intel Corporation
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef RELOCATE_H
#define RELOCATE_H
hv: fix 'User name starts with underscore' There are chances that names with leading underscore declared by developers are conflict with the ones reserved for the compiler. What this patch does: - rename these functions/variables/macros starting with underscore to avoid such unintentational mistakes. - remove gpr.h without any contents Tracked-On: #861 Signed-off-by: Shiqing Gao <shiqing.gao@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-09-29 15:46:27 +08:00
extern void relocate(void);
hv: add code to fixup ELF relocation sections For UEFI boot, currently EFI application loads hypervisor to the hard coded COMNFIG_RAM_START, which may cause it fail to boot if this address is not available in the target. This patch series resolve this issue by allocating memory for hypervisor at run time, and do relocation fixup if the allocated address is different from the base address that the hypervisor is built. The summary of the first patch [1/6] in this series: In x86_64 ELF, .rela sections hold information of symbols which must be relocated before being referenced. This patch adds code to fixup .rela sections with the relocated offset, also, it provides utilities to assist address fixup Signed-off-by: Zheng Gen <gen.zheng@intel.com> Signed-off-by: Zide Chen <zide.chen@intel.com> Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
2018-06-22 23:15:12 +08:00
extern uint64_t get_hv_image_delta(void);
extern uint64_t get_hv_image_base(void);
/* external symbols that are helpful for relocation */
hv: treewide: fix 'Array has no bounds specified' MISRAC requires that the array size should be declared explicitly. This patch fixes the issues caused by the arrays that are defined in link_ram.ld.in or assembly file. v1 -> v2: * Update the solution based on the info from the following link. https://sourceware.org/binutils/docs/ld/Source-Code-Reference.html Fix pattern is like below: extern char start_of_ROM, end_of_ROM, start_of_FLASH; memcpy (& start_of_FLASH, & start_of_ROM, & end_of_ROM - & start_of_ROM); Signed-off-by: Shiqing Gao <shiqing.gao@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-31 14:05:57 +08:00
extern uint8_t _DYNAMIC[1];
hv: add code to fixup ELF relocation sections For UEFI boot, currently EFI application loads hypervisor to the hard coded COMNFIG_RAM_START, which may cause it fail to boot if this address is not available in the target. This patch series resolve this issue by allocating memory for hypervisor at run time, and do relocation fixup if the allocated address is different from the base address that the hypervisor is built. The summary of the first patch [1/6] in this series: In x86_64 ELF, .rela sections hold information of symbols which must be relocated before being referenced. This patch adds code to fixup .rela sections with the relocated offset, also, it provides utilities to assist address fixup Signed-off-by: Zheng Gen <gen.zheng@intel.com> Signed-off-by: Zide Chen <zide.chen@intel.com> Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
2018-06-22 23:15:12 +08:00
hv: treewide: fix 'Array has no bounds specified' MISRAC requires that the array size should be declared explicitly. This patch fixes the issues caused by the arrays that are defined in link_ram.ld.in or assembly file. v1 -> v2: * Update the solution based on the info from the following link. https://sourceware.org/binutils/docs/ld/Source-Code-Reference.html Fix pattern is like below: extern char start_of_ROM, end_of_ROM, start_of_FLASH; memcpy (& start_of_FLASH, & start_of_ROM, & end_of_ROM - & start_of_ROM); Signed-off-by: Shiqing Gao <shiqing.gao@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-31 14:05:57 +08:00
extern uint8_t cpu_primary_start_32;
extern uint8_t cpu_primary_start_64;
hv: add code to fixup ELF relocation sections For UEFI boot, currently EFI application loads hypervisor to the hard coded COMNFIG_RAM_START, which may cause it fail to boot if this address is not available in the target. This patch series resolve this issue by allocating memory for hypervisor at run time, and do relocation fixup if the allocated address is different from the base address that the hypervisor is built. The summary of the first patch [1/6] in this series: In x86_64 ELF, .rela sections hold information of symbols which must be relocated before being referenced. This patch adds code to fixup .rela sections with the relocated offset, also, it provides utilities to assist address fixup Signed-off-by: Zheng Gen <gen.zheng@intel.com> Signed-off-by: Zide Chen <zide.chen@intel.com> Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
2018-06-22 23:15:12 +08:00
#endif /* RELOCATE_H */