acpi: move build_fadt() from i386 specific to generic ACPI source

It will be extended and reused by follow up patch for ARM target.

PS:
Since it's generic function now, don't patch FIRMWARE_CTRL, DSDT
fields if they don't point to tables since platform might not
provide them and use X_ variants instead if applicable.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 105 insertions, 0 deletions

diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 3fef5f6abf..8f45298a3a 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1678,3 +1678,108 @@ void build_slit(GArray *table_data, BIOSLinker *linker)
                  "SLIT",
                  table_data->len - slit_start, 1, NULL, NULL);
 }
+
+/* build rev1/rev3 FADT */
+void build_fadt(GArray *tbl, BIOSLinker *linker, const AcpiFadtData *f,
+                const char *oem_id, const char *oem_table_id)
+{
+    int off;
+    int fadt_start = tbl->len;
+
+    acpi_data_push(tbl, sizeof(AcpiTableHeader));
+
+    /* FACS address to be filled by Guest linker at runtime */
+    off = tbl->len;
+    build_append_int_noprefix(tbl, 0, 4); /* FIRMWARE_CTRL */
+    if (f->facs_tbl_offset) { /* don't patch if not supported by platform */
+        bios_linker_loader_add_pointer(linker,
+            ACPI_BUILD_TABLE_FILE, off, 4,
+            ACPI_BUILD_TABLE_FILE, *f->facs_tbl_offset);
+    }
+
+    /* DSDT address to be filled by Guest linker at runtime */
+    off = tbl->len;
+    build_append_int_noprefix(tbl, 0, 4); /* DSDT */
+    if (f->dsdt_tbl_offset) { /* don't patch if not supported by platform */
+        bios_linker_loader_add_pointer(linker,
+            ACPI_BUILD_TABLE_FILE, off, 4,
+            ACPI_BUILD_TABLE_FILE, *f->dsdt_tbl_offset);
+    }
+
+    /* ACPI1.0: INT_MODEL, ACPI2.0+: Reserved */
+    build_append_int_noprefix(tbl, f->int_model /* Multiple APIC */, 1);
+    /* Preferred_PM_Profile */
+    build_append_int_noprefix(tbl, 0 /* Unspecified */, 1);
+    build_append_int_noprefix(tbl, f->sci_int, 2); /* SCI_INT */
+    build_append_int_noprefix(tbl, f->smi_cmd, 4); /* SMI_CMD */
+    build_append_int_noprefix(tbl, f->acpi_enable_cmd, 1); /* ACPI_ENABLE */
+    build_append_int_noprefix(tbl, f->acpi_disable_cmd, 1); /* ACPI_DISABLE */
+    build_append_int_noprefix(tbl, 0 /* not supported */, 1); /* S4BIOS_REQ */
+    /* ACPI1.0: Reserved, ACPI2.0+: PSTATE_CNT */
+    build_append_int_noprefix(tbl, 0, 1);
+    build_append_int_noprefix(tbl, f->pm1a_evt.address, 4); /* PM1a_EVT_BLK */
+    build_append_int_noprefix(tbl, 0, 4); /* PM1b_EVT_BLK */
+    build_append_int_noprefix(tbl, f->pm1a_cnt.address, 4); /* PM1a_CNT_BLK */
+    build_append_int_noprefix(tbl, 0, 4); /* PM1b_CNT_BLK */
+    build_append_int_noprefix(tbl, 0, 4); /* PM2_CNT_BLK */
+    build_append_int_noprefix(tbl, f->pm_tmr.address, 4); /* PM_TMR_BLK */
+    build_append_int_noprefix(tbl, f->gpe0_blk.address, 4); /* GPE0_BLK */
+    build_append_int_noprefix(tbl, 0, 4); /* GPE1_BLK */
+    /* PM1_EVT_LEN */
+    build_append_int_noprefix(tbl, f->pm1a_evt.bit_width / 8, 1);
+    /* PM1_CNT_LEN */
+    build_append_int_noprefix(tbl, f->pm1a_cnt.bit_width / 8, 1);
+    build_append_int_noprefix(tbl, 0, 1); /* PM2_CNT_LEN */
+    build_append_int_noprefix(tbl, f->pm_tmr.bit_width / 8, 1); /* PM_TMR_LEN */
+    /* GPE0_BLK_LEN */
+    build_append_int_noprefix(tbl, f->gpe0_blk.bit_width / 8, 1);
+    build_append_int_noprefix(tbl, 0, 1); /* GPE1_BLK_LEN */
+    build_append_int_noprefix(tbl, 0, 1); /* GPE1_BASE */
+    build_append_int_noprefix(tbl, 0, 1); /* CST_CNT */
+    build_append_int_noprefix(tbl, f->plvl2_lat, 2); /* P_LVL2_LAT */
+    build_append_int_noprefix(tbl, f->plvl3_lat, 2); /* P_LVL3_LAT */
+    build_append_int_noprefix(tbl, 0, 2); /* FLUSH_SIZE */
+    build_append_int_noprefix(tbl, 0, 2); /* FLUSH_STRIDE */
+    build_append_int_noprefix(tbl, 0, 1); /* DUTY_OFFSET */
+    build_append_int_noprefix(tbl, 0, 1); /* DUTY_WIDTH */
+    build_append_int_noprefix(tbl, 0, 1); /* DAY_ALRM */
+    build_append_int_noprefix(tbl, 0, 1); /* MON_ALRM */
+    build_append_int_noprefix(tbl, f->rtc_century, 1); /* CENTURY */
+    build_append_int_noprefix(tbl, 0, 2); /* IAPC_BOOT_ARCH */
+    build_append_int_noprefix(tbl, 0, 1); /* Reserved */
+    build_append_int_noprefix(tbl, f->flags, 4); /* Flags */
+
+    if (f->rev == 1) {
+        goto build_hdr;
+    }
+
+    build_append_gas_from_struct(tbl, &f->reset_reg); /* RESET_REG */
+    build_append_int_noprefix(tbl, f->reset_val, 1); /* RESET_VALUE */
+    build_append_int_noprefix(tbl, 0, 3); /* Reserved, ACPI 3.0 */
+    build_append_int_noprefix(tbl, 0, 8); /* X_FIRMWARE_CTRL */
+
+    /* XDSDT address to be filled by Guest linker at runtime */
+    off = tbl->len;
+    build_append_int_noprefix(tbl, 0, 8); /* X_DSDT */
+    if (f->xdsdt_tbl_offset) {
+        bios_linker_loader_add_pointer(linker,
+            ACPI_BUILD_TABLE_FILE, off, 8,
+            ACPI_BUILD_TABLE_FILE, *f->xdsdt_tbl_offset);
+    }
+
+    build_append_gas_from_struct(tbl, &f->pm1a_evt); /* X_PM1a_EVT_BLK */
+    /* X_PM1b_EVT_BLK */
+    build_append_gas(tbl, AML_AS_SYSTEM_MEMORY, 0 , 0, 0, 0);
+    build_append_gas_from_struct(tbl, &f->pm1a_cnt); /* X_PM1a_CNT_BLK */
+    /* X_PM1b_CNT_BLK */
+    build_append_gas(tbl, AML_AS_SYSTEM_MEMORY, 0 , 0, 0, 0);
+    /* X_PM2_CNT_BLK */
+    build_append_gas(tbl, AML_AS_SYSTEM_MEMORY, 0 , 0, 0, 0);
+    build_append_gas_from_struct(tbl, &f->pm_tmr); /* X_PM_TMR_BLK */
+    build_append_gas_from_struct(tbl, &f->gpe0_blk); /* X_GPE0_BLK */
+    build_append_gas(tbl, AML_AS_SYSTEM_MEMORY, 0 , 0, 0, 0); /* X_GPE1_BLK */
+
+build_hdr:
+    build_header(linker, tbl, (void *)(tbl->data + fadt_start),
+                 "FACP", tbl->len - fadt_start, f->rev, oem_id, oem_table_id);
+}