diff --git a/nyx/hypercall/configuration.c b/nyx/hypercall/configuration.c
new file mode 100644
index 0000000000..038767eb79
--- /dev/null
+++ b/nyx/hypercall/configuration.c
@@ -0,0 +1,80 @@
+#include "qemu/osdep.h"
+#include "nyx/state.h"
+#include "nyx/hypercall/configuration.h"
+#include "nyx/memory_access.h"
+
+void handle_hypercall_kafl_get_host_config(struct kvm_run *run, CPUState *cpu, uint64_t hypercall_arg){
+	uint64_t vaddr = hypercall_arg;
+	host_config_t config;
+	memset((void*)&config, 0, sizeof(host_config_t));
+
+	config.host_magic = NYX_HOST_MAGIC;
+	config.host_version = NYX_HOST_VERSION;
+	config.bitmap_size = GET_GLOBAL_STATE()->shared_bitmap_size;
+	config.ijon_bitmap_size = GET_GLOBAL_STATE()->shared_ijon_bitmap_size;
+	config.payload_buffer_size = GET_GLOBAL_STATE()->shared_payload_buffer_size;
+
+	write_virtual_memory(vaddr, (uint8_t*)&config, sizeof(host_config_t), cpu);
+}
+
+void handle_hypercall_kafl_set_agent_config(struct kvm_run *run, CPUState *cpu, uint64_t hypercall_arg){
+	uint64_t vaddr = hypercall_arg;
+	agent_config_t config;
+
+	X86CPU *cpux86 = X86_CPU(cpu);
+  	CPUX86State *env = &cpux86->env;
+
+	if(read_virtual_memory(vaddr, (uint8_t*)&config, sizeof(agent_config_t), cpu)){
+
+		if (config.agent_magic != NYX_AGENT_MAGIC){
+			fprintf(stderr, "[QEMU-Nyx] Error: NYX_AGENT_MAGIC not found in agent configuration - You are probably using an outdated agent...\n");
+			exit(1);
+		}
+
+		if (config.agent_version != NYX_AGENT_VERSION){
+			fprintf(stderr, "[QEMU-Nyx] Error: NYX_AGENT_VERSION does not match in agent configuration (%d != %d) - You are probably using an outdated agent...\n", config.agent_version, NYX_AGENT_VERSION);
+			exit(1);
+		}
+
+		GET_GLOBAL_STATE()->cap_timeout_detection = config.agent_timeout_detection;
+		GET_GLOBAL_STATE()->cap_only_reload_mode = !!!config.agent_non_reload_mode; /* fix this */
+		GET_GLOBAL_STATE()->cap_compile_time_tracing = config.agent_tracing;
+
+		if(!GET_GLOBAL_STATE()->cap_compile_time_tracing && !GET_GLOBAL_STATE()->nyx_fdl){
+			fprintf(stderr, "[QEMU-Nyx] Error: Attempt to fuzz target without compile-time instrumentation - Intel PT is not supported on this KVM build!\n");
+			exit(1);
+		}
+
+		GET_GLOBAL_STATE()->cap_ijon_tracing = config.agent_ijon_tracing;
+
+		if(config.agent_tracing){
+			GET_GLOBAL_STATE()->cap_compile_time_tracing_buffer_vaddr = config.trace_buffer_vaddr;
+            GET_GLOBAL_STATE()->pt_trace_mode = false;
+		}
+		if(config.agent_ijon_tracing){
+			GET_GLOBAL_STATE()->cap_ijon_tracing_buffer_vaddr = config.ijon_trace_buffer_vaddr;
+		}
+
+		GET_GLOBAL_STATE()->cap_cr3 = env->cr[3];
+
+        if (config.coverage_bitmap_size){
+			resize_coverage_bitmap(config.coverage_bitmap_size);
+		}
+
+		if (config.input_buffer_size){
+			resize_payload_buffer(config.coverage_bitmap_size);
+		}
+
+		apply_capabilities(cpu);
+
+		if(getenv("DUMP_PAYLOAD_MODE")){
+			config.dump_payloads = 1;
+			write_virtual_memory(vaddr, (uint8_t*)&config, sizeof(agent_config_t), cpu);
+		}
+
+	}
+	else{
+		fprintf(stderr, "[QEMU-Nyx] Error: %s - failed (vaddr: 0x%lx)!\n", __func__, vaddr);
+		exit(1);
+	}
+}
\ No newline at end of file
diff --git a/nyx/hypercall/configuration.h b/nyx/hypercall/configuration.h
new file mode 100644
index 0000000000..4bb0440be2
--- /dev/null
+++ b/nyx/hypercall/configuration.h
@@ -0,0 +1,40 @@
+#pragma once
+
+#include "qemu/osdep.h"
+#include <stdint.h>
+
+void handle_hypercall_kafl_get_host_config(struct kvm_run *run, CPUState *cpu, uint64_t hypercall_arg);
+void handle_hypercall_kafl_set_agent_config(struct kvm_run *run, CPUState *cpu, uint64_t hypercall_arg);
+
+
+#define NYX_HOST_MAGIC  0x4878794e
+#define NYX_AGENT_MAGIC 0x4178794e
+
+#define NYX_HOST_VERSION 1 
+#define NYX_AGENT_VERSION 1
+
+typedef struct host_config_s{
+  uint32_t host_magic;
+  uint32_t host_version;
+  uint32_t bitmap_size;
+  uint32_t ijon_bitmap_size;
+	uint32_t payload_buffer_size;
+  /* more to come */
+} __attribute__((packed)) host_config_t;
+
+typedef struct agent_config_s{
+  uint32_t agent_magic;
+  uint32_t agent_version;
+  uint8_t agent_timeout_detection;
+  uint8_t agent_tracing;
+  uint8_t agent_ijon_tracing;
+	uint8_t agent_non_reload_mode;
+	uint64_t trace_buffer_vaddr;
+	uint64_t ijon_trace_buffer_vaddr;
+  
+	uint32_t coverage_bitmap_size;
+	uint32_t input_buffer_size;
+
+  uint8_t dump_payloads; /* set by hypervisor */
+  /* more to come */
+} __attribute__((packed)) agent_config_t;