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HV: add acpi module support for pre-launched VM

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Previously we use a pre-defined structure as vACPI table for pre-launched
VM, the structure is initialized by HV code. Now change the method to use a
pre-loaded multiboot module instead. The module file will be generated by
acrn-config tool and loaded to GPA 0x7ff00000, a hardcoded RSDP table at
GPA 0x000f2400 will point to the XSDT table which at GPA 0x7ff00080;

Tracked-On: #5266

Signed-off-by: Victor Sun <victor.sun@intel.com>
Signed-off-by: Shuang Zheng <shuang.zheng@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Victor Sun
2020-09-02 15:42:20 +08:00
committed by Fuzhong Liu
parent 4290a79951
commit 34547e1e19
8 changed files with 67 additions and 3 deletions
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20
hypervisor/arch/x86/configs/vacpi.c
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@@ -205,3 +205,23 @@ void build_vacpi(struct acrn_vm *vm)
(void)copy_to_gpa(vm, &tpm2, ACPI_TPM2_ADDR, tpm2.header.length);
}
}
/**
* @pre vm != NULL
* @pre vm->vm_id < CONFIG_MAX_VM_NUM
*/
void build_vrsdp(struct acrn_vm *vm)
{
struct acpi_table_rsdp rsdp = {
.signature = ACPI_SIG_RSDP,
.oem_id = ACPI_OEM_ID,
.revision = 0x2U,
.length = ACPI_RSDP_XCHECKSUM_LENGTH,
.xsdt_physical_address = VIRT_XSDT_ADDR,
};
rsdp.checksum = calculate_checksum8(&rsdp, ACPI_RSDP_CHECKSUM_LENGTH);
rsdp.extended_checksum = calculate_checksum8(&rsdp, ACPI_RSDP_XCHECKSUM_LENGTH);
/* Copy RSDP table to guest physical memory F segment */
(void)copy_to_gpa(vm, &rsdp, VIRT_RSDP_ADDR, ACPI_RSDP_XCHECKSUM_LENGTH);
}