diff --git a/os/run/ahci.run b/os/run/ahci.run
index 4b4e9114c..56d3ffc37 100644
--- a/os/run/ahci.run
+++ b/os/run/ahci.run
@@ -3,7 +3,7 @@
 #
 
 set build_components {
-	core init drivers/timer drivers/pci
+	core init drivers/timer drivers/pci drivers/acpi
 	drivers/ahci test/ahci
 }
 build $build_components
@@ -32,10 +32,14 @@ set config {
 	<default-route>
 		<any-service> <parent/> <any-child/> </any-service>
 	</default-route>
-	<start name="pci">
+	<start name="acpi">
 		<resource name="RAM" quantum="2M"/>
-		<binary name="pci_drv"/>
+		<binary name="acpi_drv"/>
 		<provides><service name="PCI"/></provides>
+		<route>
+			<service name="ROM"> <parent/> </service>
+			<any-service> <any-child/> <parent/> </any-service>
+		</route>
 	</start>
 	<start name="timer">
 		<resource name="RAM" quantum="1M"/>
@@ -63,7 +67,7 @@ install_config $config
 #
 
 set boot_modules {
-	core init timer pci_drv ahci_drv test-ahci
+	core init timer pci_drv ahci_drv test-ahci acpi_drv
 }
 
 build_boot_image $boot_modules
diff --git a/os/src/drivers/ahci/main.cc b/os/src/drivers/ahci/main.cc
index f154c7ab8..108e5437e 100644
--- a/os/src/drivers/ahci/main.cc
+++ b/os/src/drivers/ahci/main.cc
@@ -563,10 +563,10 @@ class Ahci_device
 
 			/* check for error */
 			enum {
-				INT_SETUP_FIS_DMA    = 0x4,
-				INT_SETUP_FIS_PIO    = 0x2,
-				INT_HOST_RIGSTER_FIS = 0x1,
-				INT_OK = INT_SETUP_FIS_DMA | INT_SETUP_FIS_PIO | INT_HOST_RIGSTER_FIS
+				INT_SETUP_FIS_DMA     = 0x4,
+				INT_SETUP_FIS_PIO     = 0x2,
+				INT_HOST_REGISTER_FIS = 0x1,
+				INT_OK = INT_SETUP_FIS_DMA | INT_SETUP_FIS_PIO | INT_HOST_REGISTER_FIS
 			};
 
 			if (!(status & INT_OK)) {
@@ -581,6 +581,26 @@ class Ahci_device
 			_port->hba_disable();
 		}
 
+		static void _disable_msi(::Pci::Device_client &pci)
+		{
+			enum { PM_CAP_OFF = 0x34, MSI_CAP = 0x5, MSI_ENABLED = 0x1 };
+			uint8_t cap = pci.config_read(PM_CAP_OFF, ::Pci::Device::ACCESS_8BIT);
+
+			/* iterate through cap pointers */
+			for (uint16_t val = 0; cap; cap = val >> 8) {
+				val = pci.config_read(cap, ::Pci::Device::ACCESS_16BIT);
+
+				if ((val & 0xff) != MSI_CAP)
+					continue;
+				uint16_t msi = pci.config_read(cap + 2, ::Pci::Device::ACCESS_16BIT);
+
+				if (msi & MSI_ENABLED) {
+					pci.config_write(cap + 2, msi ^ MSI_CAP, ::Pci::Device::ACCESS_8BIT);
+					PINF("Disabled MSIs %x", msi);
+				}
+			}
+		}
+
 	public:
 
 		Ahci_device(addr_t base, Io_mem_session_capability io_cap)
@@ -638,11 +658,18 @@ class Ahci_device
 					unsigned long intr = pci_device.config_read(AHCI_INTR_OFF,
 					                                            ::Pci::Device::ACCESS_32BIT);
 
-					if (verbose)
+					if (verbose) {
 						PDBG("Interrupt pin: %lu line: %lu", (intr >> 8) & 0xff, intr & 0xff);
 
-					device->_irq = new(env()->heap()) Irq_connection(intr & 0xff);
+						unsigned char bus, dev, func;
+						pci_device.bus_address(&bus, &dev, &func);
+						PDBG("Bus address: %x:%02x.%u (0x%x)", bus, dev, func, (bus << 8) | ((dev & 0x1f) << 3) | (func & 0x7));
+					}
 
+					/* disable message signaled interrupts */
+					_disable_msi(pci_device);
+
+					device->_irq = new(env()->heap()) Irq_connection(intr & 0xff);
 					pci.release_device(device_cap);
 
 					/* get device ready */