[Xen-devel] [PATCH 06/14] libxl/arm: Construct ACPI FADT table

[Shannon Zhao <zhaoshenglong@xxxxxxxxxx>]

From: Shannon Zhao <shannon.zhao@xxxxxxxxxx>

Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
---
 tools/libxl/libxl_arm.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/tools/libxl/libxl_arm.c b/tools/libxl/libxl_arm.c
index 0fb4f69..c3b8fb4 100644
--- a/tools/libxl/libxl_arm.c
+++ b/tools/libxl/libxl_arm.c
@@ -922,6 +922,28 @@ static void make_acpi_gtdt(libxl__gc *gc, struct 
xc_dom_image *dom)
     dom->acpitable_size += dom->acpitable_blob->gtdt.size;
 }
 
+static void make_acpi_fadt(libxl__gc *gc, struct xc_dom_image *dom)
+{
+    struct acpi_fadt_descriptor *fadt;
+
+    fadt = libxl__zalloc(gc, sizeof(*fadt));
+
+    /* Hardware Reduced = 1 and use PSCI 0.2+ and with HVC */
+    fadt->flags = 1 << ACPI_FADT_F_HW_REDUCED_ACPI;
+    fadt->arm_boot_flags = (1 << ACPI_FADT_ARM_USE_PSCI_G_0_2) |
+                           (1 << ACPI_FADT_ARM_PSCI_USE_HVC);
+
+    /* ACPI v5.1 (fadt->revision.fadt->minor_revision) */
+    fadt->minor_revision = 0x1;
+
+    make_acpi_header(&fadt->header, "FACP", sizeof(*fadt), 5);
+
+    dom->acpitable_blob->fadt.table = (void *)fadt;
+    /* Align to 64bit. */
+    dom->acpitable_blob->fadt.size = sizeof(*fadt);
+    dom->acpitable_size += dom->acpitable_blob->fadt.size;
+}
+
 static int prepare_acpi(libxl__gc *gc, libxl_domain_build_info *info,
                         libxl__domain_build_state *state,
                         struct xc_dom_image *dom)
@@ -943,6 +965,7 @@ static int prepare_acpi(libxl__gc *gc, 
libxl_domain_build_info *info,
     dom->acpitable_size = 0;
 
     make_acpi_gtdt(gc, dom);
+    make_acpi_fadt(gc, dom);
 
     return 0;
 }
-- 
2.0.4



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