The only remaining AcpiRsdpDescriptor users are the ACPI utils for the BIOS table tests. We remove that dependency and can thus remove the structure itself. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
/*
|
|
* ACPI Utility Functions
|
|
*
|
|
* Copyright (c) 2013 Red Hat Inc.
|
|
* Copyright (c) 2017 Skyport Systems
|
|
*
|
|
* Authors:
|
|
* Michael S. Tsirkin <mst@redhat.com>,
|
|
* Ben Warren <ben@skyportsystems.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include <glib/gstdio.h>
|
|
#include "qemu-common.h"
|
|
#include "qemu/bitmap.h"
|
|
#include "acpi-utils.h"
|
|
#include "boot-sector.h"
|
|
|
|
uint8_t acpi_calc_checksum(const uint8_t *data, int len)
|
|
{
|
|
int i;
|
|
uint8_t sum = 0;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
sum += data[i];
|
|
}
|
|
|
|
return sum;
|
|
}
|
|
|
|
uint32_t acpi_find_rsdp_address(QTestState *qts)
|
|
{
|
|
uint32_t off;
|
|
|
|
/* RSDP location can vary across a narrow range */
|
|
for (off = 0xf0000; off < 0x100000; off += 0x10) {
|
|
uint8_t sig[] = "RSD PTR ";
|
|
int i;
|
|
|
|
for (i = 0; i < sizeof sig - 1; ++i) {
|
|
sig[i] = qtest_readb(qts, off + i);
|
|
}
|
|
|
|
if (!memcmp(sig, "RSD PTR ", sizeof sig)) {
|
|
break;
|
|
}
|
|
}
|
|
return off;
|
|
}
|
|
|
|
uint32_t acpi_get_rsdt_address(uint8_t *rsdp_table)
|
|
{
|
|
uint32_t rsdt_physical_address;
|
|
|
|
memcpy(&rsdt_physical_address, &rsdp_table[16 /* RsdtAddress offset */], 4);
|
|
return le32_to_cpu(rsdt_physical_address);
|
|
}
|
|
|
|
uint64_t acpi_get_xsdt_address(uint8_t *rsdp_table)
|
|
{
|
|
uint64_t xsdt_physical_address;
|
|
uint8_t revision = rsdp_table[15 /* Revision offset */];
|
|
|
|
/* We must have revision 2 if we're looking for an XSDT pointer */
|
|
g_assert(revision == 2);
|
|
|
|
memcpy(&xsdt_physical_address, &rsdp_table[24 /* XsdtAddress offset */], 8);
|
|
return le64_to_cpu(xsdt_physical_address);
|
|
}
|
|
|
|
void acpi_parse_rsdp_table(QTestState *qts, uint32_t addr, uint8_t *rsdp_table)
|
|
{
|
|
uint8_t revision;
|
|
|
|
/* Read mandatory revision 0 table data (20 bytes) first */
|
|
qtest_memread(qts, addr, rsdp_table, 20);
|
|
revision = rsdp_table[15 /* Revision offset */];
|
|
|
|
switch (revision) {
|
|
case 0: /* ACPI 1.0 RSDP */
|
|
break;
|
|
case 2: /* ACPI 2.0+ RSDP */
|
|
/* Read the rest of the RSDP table */
|
|
qtest_memread(qts, addr + 20, rsdp_table + 20, 16);
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
|
|
ACPI_ASSERT_CMP64(*((uint64_t *)(rsdp_table)), "RSD PTR ");
|
|
}
|