diff -Nru qemu-8.0.4+dfsg/debian/changelog qemu-8.0.4+dfsg/debian/changelog
--- qemu-8.0.4+dfsg/debian/changelog	2024-03-18 23:40:04.000000000 +0000
+++ qemu-8.0.4+dfsg/debian/changelog	2024-03-25 18:54:06.000000000 +0000
@@ -1,3 +1,10 @@
+qemu (1:8.0.4+dfsg-1ubuntu3.23.10.5) mantic; urgency=medium
+
+  * d/p/u/lp2012763-maxcpus-too-low.patch: Actually set the max_cpus
+    property of the new Mantic machine types. (LP: #2012763)
+
+ -- Sergio Durigan Junior <sergio.durigan@canonical.com>  Mon, 25 Mar 2024 14:54:06 -0400
+
 qemu (1:8.0.4+dfsg-1ubuntu3.23.10.4) mantic; urgency=medium
 
   * d/p/u/lp2012763-maxcpus-too-low.patch: Bump max_cpus to 1024 on
diff -Nru qemu-8.0.4+dfsg/debian/patches/ubuntu/lp2012763-maxcpus-too-low.patch qemu-8.0.4+dfsg/debian/patches/ubuntu/lp2012763-maxcpus-too-low.patch
--- qemu-8.0.4+dfsg/debian/patches/ubuntu/lp2012763-maxcpus-too-low.patch	2024-03-18 23:40:04.000000000 +0000
+++ qemu-8.0.4+dfsg/debian/patches/ubuntu/lp2012763-maxcpus-too-low.patch	2024-03-25 18:52:39.000000000 +0000
@@ -1,5 +1,5 @@
---- qemu-maxcpus-mantic.orig/hw/i386/pc_q35.c	2024-03-18 19:42:02.733177294 -0400
-+++ qemu-maxcpus-mantic/hw/i386/pc_q35.c	2024-03-18 19:45:20.202653527 -0400
+--- qemu-maxcpus-mantic.orig/hw/i386/pc_q35.c	2024-03-25 14:51:44.062725620 -0400
++++ qemu-maxcpus-mantic/hw/i386/pc_q35.c	2024-03-25 14:52:26.822243238 -0400
 @@ -877,6 +877,24 @@ static void pc_q35_jammy_hpb_machine_opt
  DEFINE_Q35_MACHINE(jammy_hpb, "pc-q35-jammy-hpb", NULL,
                     pc_q35_jammy_hpb_machine_options);
@@ -25,7 +25,7 @@
  static void pc_q35_kinetic_machine_options(MachineClass *m)
  {
      pc_q35_7_0_machine_options(m);
-@@ -936,3 +954,20 @@ static void pc_q35_mantic_hpb_machine_op
+@@ -936,3 +954,22 @@ static void pc_q35_mantic_hpb_machine_op
  }
  DEFINE_Q35_MACHINE(mantic_hpb, "pc-q35-mantic-hpb", NULL,
                     pc_q35_mantic_hpb_machine_options);
@@ -35,6 +35,7 @@
 +    pc_q35_mantic_machine_options(m);
 +    m->desc = "Ubuntu 23.10 PC (Q35 + ICH9, maxcpus=1024, 2009)";
 +    m->alias = NULL;
++    m->max_cpus = 1024;
 +}
 +DEFINE_Q35_MACHINE(mantic_maxcpus, "pc-q35-mantic-maxcpus", NULL,
 +                   pc_q35_mantic_maxcpus_machine_options);
@@ -43,11 +44,12 @@
 +{
 +    pc_q35_mantic_hpb_machine_options(m);
 +    m->desc = "Ubuntu 23.10 PC (Q35 + ICH9, +host-phys-bits=true, maxcpus=1024, 2009)";
++    m->max_cpus = 1024;
 +}
 +DEFINE_Q35_MACHINE(mantic_hpb_maxcpus, "pc-q35-mantic-hpb-maxcpus", NULL,
 +                   pc_q35_mantic_hpb_maxcpus_machine_options);
---- qemu-maxcpus-mantic.orig/hw/i386/pc_piix.c	2024-03-18 19:42:02.733177294 -0400
-+++ qemu-maxcpus-mantic/hw/i386/pc_piix.c	2024-03-18 19:46:29.081847603 -0400
+--- qemu-maxcpus-mantic.orig/hw/i386/pc_piix.c	2024-03-25 14:51:44.062725620 -0400
++++ qemu-maxcpus-mantic/hw/i386/pc_piix.c	2024-03-25 14:51:44.062725620 -0400
 @@ -1114,6 +1114,24 @@ static void pc_jammy_hpb_machine_options
  DEFINE_I440FX_MACHINE(jammy_hpb, "pc-i440fx-jammy-hpb", NULL,
                        pc_jammy_hpb_machine_options);