This patch allows FADT to be built with different revisions. When the revision
is greater than 1.0, 64-bit address fields may also be filled.
Note that FADT revision 2 has never been defined by the ACPI specification. So
this patch only adds an option -acpifadt to allow revision 1,3,5 to be
configured by the users.
1. Tested by booting a linux image, the 64-bit addresses are correctly filled
in the dumped FADT.
2. Tested by booting a Windows image, no boot failure can be seen.
Signed-off-by: Lv Zheng <lv.zh...@intel.com>
---
hw/i386/acpi-build.c | 62 ++++++++++++++++++++++++++++++++++++++++++------
include/hw/acpi/acpi.h | 1 +
qemu-options.hx | 9 +++++++
vl.c | 18 ++++++++++++++
4 files changed, 83 insertions(+), 7 deletions(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index ce7cbc5..1f664de 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -276,8 +276,22 @@ build_facs(GArray *table_data, BIOSLinker *linker)
facs->length = cpu_to_le32(sizeof(*facs));
}
+/* GAS */
+static void
+build_gas(struct AcpiGenericAddress *gas, uint8_t space_id,
+ uint8_t bit_width, uint8_t bit_offset,
+ uint8_t access_width, uint64_t address)
+{
+ gas->space_id = space_id;
+ gas->bit_width = bit_width;
+ gas->bit_offset = bit_offset;
+ gas->access_width= access_width;
+ gas->address = address;
+}
+
/* Load chipset information in FADT */
-static void fadt_setup(AcpiFadtDescriptorRev1 *fadt, AcpiPmInfo *pm)
+static void fadt_setup(AcpiFadtDescriptorRev5_1 *fadt, AcpiPmInfo *pm,
+ uint8_t revision)
{
fadt->model = 1;
fadt->reserved1 = 0;
@@ -309,6 +323,25 @@ static void fadt_setup(AcpiFadtDescriptorRev1 *fadt,
AcpiPmInfo *pm)
fadt->flags |= cpu_to_le32(1 << ACPI_FADT_F_FORCE_APIC_CLUSTER_MODEL);
}
fadt->century = RTC_CENTURY;
+
+ /* Build ACPI 2.0 (FADT version 3+) GAS fields */
+ if (revision >= 3) {
+ /* EVT, CNT, TMR register matches hw/acpi/core.c */
+ build_gas(&fadt->xpm1a_event_block, AML_SYSTEM_IO,
+ 32, 0, 0, cpu_to_le64(pm->io_base));
+ build_gas(&fadt->xpm1a_control_block, AML_SYSTEM_IO,
+ 16, 0, 0, cpu_to_le64(pm->io_base + 0x04));
+ build_gas(&fadt->xpm_timer_block, AML_SYSTEM_IO,
+ 32, 0, 0, cpu_to_le64(pm->io_base + 0x08));
+ build_gas(&fadt->xgpe0_block, AML_SYSTEM_IO,
+ pm->gpe0_blk_len << 3, 0, 0, cpu_to_le64(pm->gpe0_blk));
+ }
+
+ /* Build dummy ACPI 5.0 fields */
+ if (revision >= 5) {
+ build_gas(&fadt->sleep_control, AML_SYSTEM_MEMORY, 0, 0, 0, 0);
+ build_gas(&fadt->sleep_status, AML_SYSTEM_MEMORY, 0, 0, 0, 0);
+ }
}
@@ -316,9 +349,9 @@ static void fadt_setup(AcpiFadtDescriptorRev1 *fadt,
AcpiPmInfo *pm)
static void
build_fadt(GArray *table_data, BIOSLinker *linker, AcpiPmInfo *pm,
unsigned facs_tbl_offset, unsigned dsdt_tbl_offset,
- const char *oem_id, const char *oem_table_id)
+ const char *oem_id, const char *oem_table_id, uint8_t revision)
{
- AcpiFadtDescriptorRev1 *fadt = acpi_data_push(table_data, sizeof(*fadt));
+ AcpiFadtDescriptorRev5_1 *fadt = acpi_data_push(table_data, sizeof(*fadt));
unsigned fw_ctrl_offset = (char *)&fadt->firmware_ctrl - table_data->data;
unsigned dsdt_entry_offset = (char *)&fadt->dsdt - table_data->data;
@@ -328,13 +361,28 @@ build_fadt(GArray *table_data, BIOSLinker *linker,
AcpiPmInfo *pm,
ACPI_BUILD_TABLE_FILE, facs_tbl_offset);
/* DSDT address to be filled by Guest linker */
- fadt_setup(fadt, pm);
bios_linker_loader_add_pointer(linker,
ACPI_BUILD_TABLE_FILE, dsdt_entry_offset, sizeof(fadt->dsdt),
ACPI_BUILD_TABLE_FILE, dsdt_tbl_offset);
- build_header(linker, table_data,
- (void *)fadt, "FACP", sizeof(*fadt), 1, oem_id, oem_table_id);
+ if (revision > 2) {
+ fw_ctrl_offset = (char *)&fadt->Xfacs - table_data->data;
+ dsdt_entry_offset = (char *)&fadt->Xdsdt - table_data->data;
+
+ /* FACS address to be filled by Guest linker */
+ bios_linker_loader_add_pointer(linker,
+ ACPI_BUILD_TABLE_FILE, fw_ctrl_offset, sizeof(fadt->Xfacs),
+ ACPI_BUILD_TABLE_FILE, facs_tbl_offset);
+
+ /* DSDT address to be filled by Guest linker */
+ bios_linker_loader_add_pointer(linker,
+ ACPI_BUILD_TABLE_FILE, dsdt_entry_offset, sizeof(fadt->Xdsdt),
+ ACPI_BUILD_TABLE_FILE, dsdt_tbl_offset);
+ }
+
+ fadt_setup(fadt, pm, revision);
+ build_header(linker, table_data, (void *)fadt, "FACP", sizeof(*fadt),
+ revision, oem_id, oem_table_id);
}
void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid,
@@ -2681,7 +2729,7 @@ void acpi_build(AcpiBuildTables *tables, MachineState
*machine)
fadt = tables_blob->len;
acpi_add_table(table_offsets, tables_blob);
build_fadt(tables_blob, tables->linker, &pm, facs, dsdt,
- slic_oem.id, slic_oem.table_id);
+ slic_oem.id, slic_oem.table_id, acpi_fadt_rev);
aml_len += tables_blob->len - fadt;
acpi_add_table(table_offsets, tables_blob);
diff --git a/include/hw/acpi/acpi.h b/include/hw/acpi/acpi.h
index 7b3d93c..63df38d 100644
--- a/include/hw/acpi/acpi.h
+++ b/include/hw/acpi/acpi.h
@@ -173,6 +173,7 @@ void acpi_update_sci(ACPIREGS *acpi_regs, qemu_irq irq);
/* acpi.c */
extern int acpi_enabled;
+extern uint8_t acpi_fadt_rev;
extern char unsigned *acpi_tables;
extern size_t acpi_tables_len;
diff --git a/qemu-options.hx b/qemu-options.hx
index a71aaf8..cff34f6 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -1492,6 +1492,15 @@ STEXI
Disable HPET support.
ETEXI
+DEF("acpifadt", HAS_ARG, QEMU_OPTION_acpifadt, \
+ "-acpifadt n configure FADT revision number (1, 3, 5)\n",
+ QEMU_ARCH_ALL)
+STEXI
+@item -acpifadt @var{n}
+@findex -acpifadt
+Configure FADT revision number, default is 1.
+ETEXI
+
DEF("acpitable", HAS_ARG, QEMU_OPTION_acpitable,
"-acpitable
[sig=str][,rev=n][,oem_id=str][,oem_table_id=str][,oem_rev=n][,asl_compiler_id=str][,asl_compiler_rev=n][,{data|file}=file1[:file2]...]\n"
" ACPI table description\n", QEMU_ARCH_I386)
diff --git a/vl.c b/vl.c
index e7c2c62..5fe2414 100644
--- a/vl.c
+++ b/vl.c
@@ -64,6 +64,7 @@ int main(int argc, char **argv)
#include "hw/bt.h"
#include "sysemu/watchdog.h"
#include "hw/smbios/smbios.h"
+#include "hw/acpi/acpi.h"
#include "hw/xen/xen.h"
#include "hw/qdev.h"
#include "hw/loader.h"
@@ -158,6 +159,7 @@ int max_cpus = 1;
int smp_cores = 1;
int smp_threads = 1;
int acpi_enabled = 1;
+uint8_t acpi_fadt_rev = 1;
int no_hpet = 0;
int fd_bootchk = 1;
static int no_reboot;
@@ -2301,6 +2303,19 @@ static int parse_fw_cfg(void *opaque, QemuOpts *opts,
Error **errp)
return 0;
}
+static void fadt_parse(const char *arg)
+{
+ uint32_t rev;
+
+ rev = strtoul(arg, NULL, 0);
+ if (rev != 1 && rev != 3 && rev != 5) {
+ error_printf("Unsupported FADT revision %d,"
+ "please specify 1,3,5.\n", rev);
+ exit(1);
+ }
+ acpi_fadt_rev = rev;
+}
+
static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
{
return qdev_device_help(opts);
@@ -3622,6 +3637,9 @@ int main(int argc, char **argv, char **envp)
qdev_prop_register_global(&slew_lost_ticks);
break;
}
+ case QEMU_OPTION_acpifadt:
+ fadt_parse(optarg);
+ break;
case QEMU_OPTION_acpitable:
opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
optarg, true);
--
1.7.10
