diff --git a/libc/kernel/uapi/asm-arm64/asm/auxvec.h b/libc/kernel/uapi/asm-arm64/asm/auxvec.h
index 74fca55..4735fd5 100644
--- a/libc/kernel/uapi/asm-arm64/asm/auxvec.h
+++ b/libc/kernel/uapi/asm-arm64/asm/auxvec.h
@@ -19,5 +19,6 @@
 #ifndef __ASM_AUXVEC_H
 #define __ASM_AUXVEC_H
 #define AT_SYSINFO_EHDR 33
-#define AT_VECTOR_SIZE_ARCH 1
+#define AT_MINSIGSTKSZ 51
+#define AT_VECTOR_SIZE_ARCH 2
 #endif
diff --git a/libc/kernel/uapi/asm-arm64/asm/kvm.h b/libc/kernel/uapi/asm-arm64/asm/kvm.h
index 167d811..e79562c 100644
--- a/libc/kernel/uapi/asm-arm64/asm/kvm.h
+++ b/libc/kernel/uapi/asm-arm64/asm/kvm.h
@@ -32,6 +32,7 @@
 #define __KVM_HAVE_GUEST_DEBUG
 #define __KVM_HAVE_IRQ_LINE
 #define __KVM_HAVE_READONLY_MEM
+#define __KVM_HAVE_VCPU_EVENTS
 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
 #define KVM_REG_SIZE(id) (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
 struct kvm_regs {
@@ -60,6 +61,7 @@
 #define KVM_VGIC_V3_ADDR_TYPE_DIST 2
 #define KVM_VGIC_V3_ADDR_TYPE_REDIST 3
 #define KVM_VGIC_ITS_ADDR_TYPE 4
+#define KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION 5
 #define KVM_VGIC_V3_DIST_SIZE SZ_64K
 #define KVM_VGIC_V3_REDIST_SIZE (2 * SZ_64K)
 #define KVM_VGIC_V3_ITS_SIZE (2 * SZ_64K)
@@ -93,6 +95,15 @@
 };
 struct kvm_arch_memory_slot {
 };
+struct kvm_vcpu_events {
+  struct {
+    __u8 serror_pending;
+    __u8 serror_has_esr;
+    __u8 pad[6];
+    __u64 serror_esr;
+  } exception;
+  __u32 reserved[12];
+};
 #define KVM_REG_ARM_COPROC_MASK 0x000000000FFF0000
 #define KVM_REG_ARM_COPROC_SHIFT 16
 #define KVM_REG_ARM_CORE (0x0010 << KVM_REG_ARM_COPROC_SHIFT)