mirror of
https://github.com/projectacrn/acrn-hypervisor.git
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c332443c5c
Currently when get_rsdp is called, the EFI depriv_boot env is not initialized. In such case it will fail to get the ACPI table. On the old platform it still can parse the ACPI table from legacy platform. But it will fail on the new platform. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
/*
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* Copyright (C) 2019 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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/* this is for de-privilege guest vboot method */
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#include <types.h>
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#include <acrn_common.h>
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#include <pgtable.h>
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#include <logmsg.h>
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#include <rtl.h>
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#include <vlapic.h>
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#include <lapic.h>
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#include <per_cpu.h>
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#include <multiboot.h>
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#include <deprivilege_boot.h>
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static struct depri_boot_context depri_boot_ctx;
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static struct lapic_regs depri_boot_lapic_regs;
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static void init_depri_boot(void)
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{
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static bool depri_initialized = false;
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struct multiboot_info *mbi = NULL;
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if (!depri_initialized) {
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(void)parse_hv_cmdline();
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mbi = (struct multiboot_info *) hpa2hva(((uint64_t)(uint32_t)boot_regs[1]));
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if ((mbi == NULL) || ((mbi->mi_flags & MULTIBOOT_INFO_HAS_DRIVES) == 0U)) {
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pr_err("no multiboot drivers for depri_boot found");
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} else {
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(void)memcpy_s(&depri_boot_ctx, sizeof(struct depri_boot_context),
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hpa2hva((uint64_t)mbi->mi_drives_addr),
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sizeof(struct depri_boot_context));
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save_lapic(&depri_boot_lapic_regs);
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}
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depri_initialized = true;
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}
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}
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const struct depri_boot_context *get_depri_boot_ctx(void)
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{
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init_depri_boot();
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return &depri_boot_ctx;
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}
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const struct lapic_regs *get_depri_boot_lapic_regs(void)
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{
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init_depri_boot();
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return &depri_boot_lapic_regs;
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}
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static uint64_t get_depri_boot_ap_trampoline(void)
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{
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return depri_boot_ctx.ap_trampoline_buf;
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}
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static void* get_depri_boot_rsdp(void)
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{
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init_depri_boot();
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return hpa2hva((uint64_t)(depri_boot_ctx.rsdp));
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}
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static void init_depri_boot_irq(void)
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{
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/* nothing to do for now */
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}
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static struct vboot_operations depri_boot_ops = {
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.init = init_depri_boot,
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.get_ap_trampoline = get_depri_boot_ap_trampoline,
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.get_rsdp = get_depri_boot_rsdp,
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.init_irq = init_depri_boot_irq,
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};
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struct vboot_operations* get_deprivilege_boot_ops(void)
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{
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return &depri_boot_ops;
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}
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