mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-05-11 01:44:55 +00:00
cee2f8b288
Currently when get_rsdp is called, the EFI depriv_boot env is not initialized. In such case it will fallback to the legacy mechanism of ACPI table. If the ACPI table based on legacy mechanism is not found, it will fail to get the ACPI table and then the system will hang. On the old platform it still can parse the ACPI table from legacy mechanism. In fact when EFI RSDP exists, the EFI RSDP is preferred instead of legacy ACPI RSDP. In order to avoid multiple calling of depriv_init_boot, the init_boot_operations is renamed and called after X2apic is enabled(early_init_lapic). Tracked-On: #3184 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Reviewed-by: Yin Fengwei <fengwei.yin@intel.com> Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
/*
|
|
* Copyright (C) 2019 Intel Corporation. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
/* this is for de-privilege guest vboot method */
|
|
|
|
#include <types.h>
|
|
#include <acrn_common.h>
|
|
#include <pgtable.h>
|
|
#include <logmsg.h>
|
|
#include <rtl.h>
|
|
#include <vlapic.h>
|
|
#include <lapic.h>
|
|
#include <per_cpu.h>
|
|
#include <multiboot.h>
|
|
#include <deprivilege_boot.h>
|
|
|
|
static struct depri_boot_context depri_boot_ctx;
|
|
static struct lapic_regs depri_boot_lapic_regs;
|
|
|
|
static void init_depri_boot(void)
|
|
{
|
|
static bool depri_initialized = false;
|
|
struct multiboot_info *mbi = NULL;
|
|
|
|
if (!depri_initialized) {
|
|
(void)parse_hv_cmdline();
|
|
|
|
mbi = (struct multiboot_info *) hpa2hva(((uint64_t)(uint32_t)boot_regs[1]));
|
|
if ((mbi == NULL) || ((mbi->mi_flags & MULTIBOOT_INFO_HAS_DRIVES) == 0U)) {
|
|
pr_err("no multiboot drivers for depri_boot found");
|
|
} else {
|
|
(void)memcpy_s(&depri_boot_ctx, sizeof(struct depri_boot_context),
|
|
hpa2hva((uint64_t)mbi->mi_drives_addr),
|
|
sizeof(struct depri_boot_context));
|
|
save_lapic(&depri_boot_lapic_regs);
|
|
}
|
|
depri_initialized = true;
|
|
}
|
|
}
|
|
|
|
const struct depri_boot_context *get_depri_boot_ctx(void)
|
|
{
|
|
return &depri_boot_ctx;
|
|
}
|
|
|
|
const struct lapic_regs *get_depri_boot_lapic_regs(void)
|
|
{
|
|
return &depri_boot_lapic_regs;
|
|
}
|
|
|
|
static uint64_t get_depri_boot_ap_trampoline(void)
|
|
{
|
|
return depri_boot_ctx.ap_trampoline_buf;
|
|
}
|
|
|
|
static void* get_depri_boot_rsdp(void)
|
|
{
|
|
return hpa2hva((uint64_t)(depri_boot_ctx.rsdp));
|
|
}
|
|
|
|
static void init_depri_boot_irq(void)
|
|
{
|
|
/* nothing to do for now */
|
|
}
|
|
|
|
static struct vboot_operations depri_boot_ops = {
|
|
.init = init_depri_boot,
|
|
.get_ap_trampoline = get_depri_boot_ap_trampoline,
|
|
.get_rsdp = get_depri_boot_rsdp,
|
|
.init_irq = init_depri_boot_irq,
|
|
};
|
|
|
|
struct vboot_operations* get_deprivilege_boot_ops(void)
|
|
{
|
|
return &depri_boot_ops;
|
|
}
|