[Xen-devel] [RFC PATCH 2/5] libxl: Load guest BIOS and ACPI table from file.

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

---
 tools/libxl/libxl_dom.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)

diff --git a/tools/libxl/libxl_dom.c b/tools/libxl/libxl_dom.c
index c2518a3..6c0a257 100644
--- a/tools/libxl/libxl_dom.c
+++ b/tools/libxl/libxl_dom.c
@@ -790,6 +790,32 @@ static int hvm_build_set_params(xc_interface *handle, 
uint32_t domid,
     return 0;
 }
 
+static int hvm_build_set_xs_values_single_module(libxl__gc *gc,
+                                   uint32_t domid,
+                                   struct xc_hvm_firmware_module *module,
+                                   const char *module_name)
+{
+    char *path = NULL;
+    int ret;
+    if (module->guest_addr_out) {
+        path = GCSPRINTF("/local/domain/%d/hvmloader/%s/address",
+                         domid, module_name);
+
+        ret = libxl__xs_write(gc, XBT_NULL, path, "0x%"PRIx64,
+                              module->guest_addr_out);
+        if (ret)
+            return ret;
+
+        path = GCSPRINTF("/local/domain/%d/hvmloader/%s/length",
+                         domid, module_name);
+
+        ret = libxl__xs_write(gc, XBT_NULL, path, "0x%x", module->length);
+        if (ret)
+            return ret;
+    }
+    return 0;
+}
+
 static int hvm_build_set_xs_values(libxl__gc *gc,
                                    uint32_t domid,
                                    struct xc_hvm_build_args *args)
@@ -797,6 +823,16 @@ static int hvm_build_set_xs_values(libxl__gc *gc,
     char *path = NULL;
     int ret = 0;
 
+    ret = hvm_build_set_xs_values_single_module(gc, domid,
+                                                &args->bios_module,
+                                                "bios");
+    if (ret)
+        goto err;
+    ret = hvm_build_set_xs_values_single_module(gc, domid,
+                                                &args->acpi_table_module,
+                                                "acpi_table");
+    if (ret)
+        goto err;
     if (args->smbios_module.guest_addr_out) {
         path = GCSPRINTF("/local/domain/%d/"HVM_XS_SMBIOS_PT_ADDRESS, domid);
 
@@ -867,6 +903,50 @@ static int libxl__domain_firmware(libxl__gc *gc,
     args->image_file_name = libxl__abs_path(gc, firmware,
                                             libxl__xenfirmwaredir_path());
 
+    // load bios
+    {
+        // XXX select proper bios.
+        const char *bios_bin_filename = libxl__abs_path(gc, "seabios.bin",
+                                            libxl__xenfirmwaredir_path());
+        LOG(DEBUG, "Loading BIOS: %s", bios_bin_filename);
+        data = NULL;
+        e = libxl_read_file_contents(ctx, bios_bin_filename,
+                                     &data, &datalen);
+        if (e) {
+            LOGEV(ERROR, e, "failed to read BIOS firmware file %s",
+                  bios_bin_filename);
+            goto out;
+        }
+        libxl__ptr_add(gc, data);
+        if (datalen) {
+            /* Only accept non-empty files */
+            args->bios_module.data = data;
+            args->bios_module.length = (uint32_t)datalen;
+        }
+    }
+    // load acpi table
+    {
+        // XXX select proper acpi table.
+        const char *acpi_table_filename = libxl__abs_path(gc,
+                                                "dsdt_anycpu_qemu_xen.aml",
+                                                libxl__xenfirmwaredir_path());
+        LOG(DEBUG, "Loading ACPI Table: %s", bios_bin_filename);
+        data = NULL;
+        e = libxl_read_file_contents(ctx, acpi_table_filename,
+                                     &data, &datalen);
+        if (e) {
+            LOGEV(ERROR, e, "failed to read ACPI tables file %s",
+                  acpi_table_filename);
+            goto out;
+        }
+        libxl__ptr_add(gc, data);
+        if (datalen) {
+            /* Only accept non-empty files */
+            args->acpi_table_module.data = data;
+            args->acpi_table_module.length = (uint32_t)datalen;
+        }
+    }
+
     if (info->u.hvm.smbios_firmware) {
         data = NULL;
         e = libxl_read_file_contents(ctx, info->u.hvm.smbios_firmware,
-- 
Anthony PERARD


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