35 lines
1.1 KiB
C++
35 lines
1.1 KiB
C++
/*
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* Copyright (C) 2025 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include "io_stack.h"
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#include <kernel/vm.h>
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#include <stdio.h>
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void *get_io_stack() {
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static void *io_stack = nullptr;
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if (io_stack == nullptr) {
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auto status = vmm_alloc(vmm_get_kernel_aspace(), "uefi_io_stack",
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kIoStackSize, &io_stack, PAGE_SIZE_SHIFT, 0, 0);
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if (io_stack == nullptr) {
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printf("Failed to allocated IO stack of size %zu error %d\n",
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kIoStackSize, status);
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return nullptr;
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}
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}
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return io_stack;
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} |