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https://github.com/projectacrn/acrn-hypervisor.git
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99586e32cc
For data structure types "struct vm", its name is identical with variable name in the same scope. This is a MISRA C violation. Naming convention rule:If the data structure type is used by multi modules, its corresponding logic resource is exposed to external components (such as SOS, UOS), and its name meaning is simplistic (such as vcpu, vm), its name needs prefix "acrn_". The following udpates are made: struct vm *vm-->struct acrn_vm *vm Tracked-On: #861 Signed-off-by: Xiangyang Wu <xiangyang.wu@linux.intel.com>
66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef PAGE_H
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#define PAGE_H
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#define PAGE_SHIFT 12U
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#define PAGE_SIZE (1UL << PAGE_SHIFT)
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/* size of the low MMIO address space: 2GB */
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#define PLATFORM_LO_MMIO_SIZE 0x80000000UL
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#define PML4_PAGE_NUM(size) 1UL
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#define PDPT_PAGE_NUM(size) (((size) + PML4E_SIZE - 1UL) >> PML4E_SHIFT)
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#define PD_PAGE_NUM(size) (((size) + PDPTE_SIZE - 1UL) >> PDPTE_SHIFT)
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#define PT_PAGE_NUM(size) (((size) + PDE_SIZE - 1UL) >> PDE_SHIFT)
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/* The size of the guest physical address space, covered by the EPT page table of a VM */
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#define EPT_ADDRESS_SPACE(size) ((size != 0UL) ? (size + PLATFORM_LO_MMIO_SIZE) : 0UL)
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#define TRUSTY_PML4_PAGE_NUM(size) (1UL)
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#define TRUSTY_PDPT_PAGE_NUM(size) (1UL)
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#define TRUSTY_PD_PAGE_NUM(size) (PD_PAGE_NUM(size))
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#define TRUSTY_PT_PAGE_NUM(size) (PT_PAGE_NUM(size))
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#define TRUSTY_PGTABLE_PAGE_NUM(size) \
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(TRUSTY_PML4_PAGE_NUM(size) + TRUSTY_PDPT_PAGE_NUM(size) + TRUSTY_PD_PAGE_NUM(size) + TRUSTY_PT_PAGE_NUM(size))
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struct page {
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uint8_t contents[PAGE_SIZE];
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} __aligned(PAGE_SIZE);
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union pgtable_pages_info {
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struct {
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struct page *pml4_base;
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struct page *pdpt_base;
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struct page *pd_base;
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struct page *pt_base;
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} ppt;
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struct {
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uint64_t top_address_space;
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struct page *nworld_pml4_base;
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struct page *nworld_pdpt_base;
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struct page *nworld_pd_base;
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struct page *nworld_pt_base;
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struct page *sworld_pgtable_base;
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} ept;
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};
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struct memory_ops {
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union pgtable_pages_info *info;
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uint64_t (*get_default_access_right)(void);
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uint64_t (*pgentry_present)(uint64_t pte);
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struct page *(*get_pml4_page)(const union pgtable_pages_info *info, uint64_t gpa);
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struct page *(*get_pdpt_page)(const union pgtable_pages_info *info, uint64_t gpa);
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struct page *(*get_pd_page)(const union pgtable_pages_info *info, uint64_t gpa);
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struct page *(*get_pt_page)(const union pgtable_pages_info *info, uint64_t gpa);
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};
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extern const struct memory_ops ppt_mem_ops;
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void init_ept_mem_ops(struct acrn_vm *vm);
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#endif /* PAGE_H */
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