diff --git a/sysutils/u-boot-bhyve-arm64/Makefile b/sysutils/u-boot-bhyve-arm64/Makefile
--- a/sysutils/u-boot-bhyve-arm64/Makefile
+++ b/sysutils/u-boot-bhyve-arm64/Makefile
@@ -1,5 +1,7 @@
 MASTERDIR=	${.CURDIR}/../u-boot-master
 
+U_BOOT_SLAVE_PORTREVISION_2023.10=	1
+
 MODEL=		bhyve-arm64
 BOARD_CONFIG=	bhyve_arm64_defconfig
 FAMILY=		bhyve
diff --git a/sysutils/u-boot-bhyve-arm64/files/patch-board_emulation_bhyve-arm_bhyve-arm.c b/sysutils/u-boot-bhyve-arm64/files/patch-board_emulation_bhyve-arm_bhyve-arm.c
--- a/sysutils/u-boot-bhyve-arm64/files/patch-board_emulation_bhyve-arm_bhyve-arm.c
+++ b/sysutils/u-boot-bhyve-arm64/files/patch-board_emulation_bhyve-arm_bhyve-arm.c
@@ -36,7 +36,7 @@
 +		/* GICv3 */
 +		.virt = 0x2f100000UL,
 +		.phys = 0x2f100000UL,
-+		.size = 0x20000UL,
++		.size = 0xf00000UL,
 +		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
 +			 PTE_BLOCK_NON_SHARE |
 +			 PTE_BLOCK_PXN | PTE_BLOCK_UXN