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https://github.com/projectacrn/acrn-hypervisor.git
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3dc927bf45
Maps entire physical memory range. Tracked-On: #8841 Signed-off-by: Yifan Liu <yifan1.liu@intel.com> Acked-by: Wang Yu1 <yu1.wang@intel.com>
78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
/*
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* Copyright (C) 2018-2025 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <vcpu.h>
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#include <vm.h>
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#include <guest_memory.h>
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#include <pgtable.h>
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#define INVALID_HPA (0x1UL << 52U)
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#define INVALID_GPA (0x1UL << 52U)
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void dummy_pgtable_add_map(uint64_t paddr_base, uint64_t vaddr_base, uint64_t size, uint64_t prot);
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int32_t gva2gpa(struct acrn_vcpu *vcpu, uint64_t gva, uint64_t *gpa, uint32_t *err_code)
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{
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/* TODO: dummy implementation, assuming gva 1-1 mapping to gpa */
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(void)vcpu;
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(void)err_code;
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*gpa = gva;
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return 0;
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}
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uint64_t gpa2hpa(struct acrn_vm *vm, uint64_t gpa)
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{
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/* TODO: dummy implementation, assuming 1-1 gpa2hpa mapping */
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(void)vm;
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return gpa;
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}
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enum vm_paging_mode get_vcpu_paging_mode(struct acrn_vcpu *vcpu)
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{
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(void)vcpu;
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return PAGING_MODE_4_LEVEL;
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}
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/* gpa --> hpa -->hva */
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void *gpa2hva(struct acrn_vm *vm, uint64_t x)
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{
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uint64_t hpa = gpa2hpa(vm, x);
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return (hpa == INVALID_HPA) ? NULL : hpa2hva(hpa);
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}
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int32_t copy_from_gpa(struct acrn_vm *vm, void *h_ptr, uint64_t gpa, uint32_t size)
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{
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/* TODO: dummy implementation */
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(void)vm;
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memcpy(h_ptr, (void *)gpa, size);
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return 0;
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}
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int32_t copy_to_gpa(struct acrn_vm *vm, void *h_ptr, uint64_t gpa, uint32_t size)
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{
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/* TODO: dummy implementation */
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(void)vm;
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memcpy((void *)gpa, h_ptr, size);
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return 0;
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}
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int32_t copy_from_gva(struct acrn_vcpu *vcpu, void *h_ptr, uint64_t gva,
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uint32_t size, uint32_t *err_code, uint64_t *fault_addr)
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{
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/* TODO: to be implemented */
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(void)vcpu; (void)h_ptr; (void)gva; (void)size; (void)err_code; (void)fault_addr;
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return 0;
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}
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int32_t copy_to_gva(struct acrn_vcpu *vcpu, void *h_ptr, uint64_t gva,
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uint32_t size, uint32_t *err_code, uint64_t *fault_addr)
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{
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/* TODO: to be implemented */
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(void)vcpu; (void)h_ptr; (void)gva; (void)size; (void)err_code; (void)fault_addr;
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return 0;
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}
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