libxc: Save the HVM_PARAM_ACPI_IOPORTS_LOCATION

This will save the acpi_ioport_location hvm_param in the checkpoint file
and set the parameter in Xen at restore.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/tools/libxc/xc_domain_save.c b/tools/libxc/xc_domain_save.c
index 27b38a6239..675611b15d 100644
--- a/tools/libxc/xc_domain_save.c
+++ b/tools/libxc/xc_domain_save.c
@@ -1628,6 +1628,16 @@ int xc_domain_save(xc_interface *xch, int io_fd, uint32_t dom, uint32_t max_iter
             PERROR("Error when writing the console pfn for guest");
             goto out;
         }
+
+        chunk.id = XC_SAVE_ID_HVM_ACPI_IOPORTS_LOCATION;
+        xc_get_hvm_param(xch, dom, HVM_PARAM_ACPI_IOPORTS_LOCATION,
+                         (unsigned long *)&chunk.data);
+
+        if ((chunk.data != 0) && wrexact(io_fd, &chunk, sizeof(chunk)))
+        {
+            PERROR("Error when writing the firmware ioport version");
+            goto out;
+        }
     }
 
     if ( !callbacks->checkpoint )