diff --git a/repos/base/run/platform_drv.inc b/repos/base/run/platform_drv.inc
index 481c707de..d9fb37c63 100644
--- a/repos/base/run/platform_drv.inc
+++ b/repos/base/run/platform_drv.inc
@@ -64,12 +64,26 @@ proc audio_drv_binary { } {
 	return no_audio_drv_available
 }
 
+proc acpi_drv_name { } {
+	global use_acpica_as_acpi_drv
+	if {[info exists use_acpica_as_acpi_drv] && $use_acpica_as_acpi_drv} {
+		return acpica }
+
+	return acpi_drv
+}
 
 proc platform_drv_build_components {} {
 	set drv_build_components ""
 	lappend_if [have_platform_drv] drv_build_components drivers/platform
-	lappend_if [have_spec x86]     drv_build_components drivers/acpi
 	lappend_if [have_spec x86]     drv_build_components server/report_rom
+	if {[have_spec x86]} {
+		if {[acpi_drv_name] eq "acpi_drv"} {
+			lappend drv_build_components drivers/acpi
+		}
+		if {[acpi_drv_name] eq "acpica"} {
+			lappend drv_build_components app/acpica
+		}
+	}
 	return $drv_build_components
 }
 
@@ -88,7 +102,7 @@ proc platform_drv_boot_modules {} {
 		if {[have_spec muen]} {
 			lappend drv_boot_modules acpi
 		} else {
-			lappend drv_boot_modules acpi_drv
+			lappend drv_boot_modules [acpi_drv_name]
 		}
 	}
 
@@ -103,8 +117,18 @@ proc append_platform_drv_boot_modules {} {
 
 proc platform_drv_policy {} {
 
-	if ([have_spec x86]) {
-		return {
+	if (![have_spec x86]) {
+		return {}
+	}
+
+	set drv_policy ""
+
+	if {[acpi_drv_name] eq "acpica"} {
+		append drv_policy {
+			<policy label="acpi_drv -> ">    <pci class="ALL"/> </policy>}
+	}
+
+	append drv_policy {
 			<policy label_prefix="ps2_drv">  <device name="PS2"/> </policy>
 			<policy label_prefix="nic_drv">  <pci class="ETHERNET"/> </policy>
 			<policy label_prefix="fb_drv">   <pci class="VGA"/> </policy>
@@ -118,17 +142,17 @@ proc platform_drv_policy {} {
 				<pci bus="0" device="0" function="0"/>
 				<pci class="ISABRIDGE"/>
 			</policy>}
-	} else {
-		return {}
-	}
+
+	return $drv_policy
 }
 
 
 proc platform_drv_priority {} { return "" }
 proc platform_drv_add_routing {} {
-	if {[have_spec x86]} {
+
+	if {[acpi_drv_name] eq "acpica"} {
 		return {
-			<service name="ROM" label="system"> <child name="acpi_report_rom"/> </service>}
+			<service name="ROM" label="acpi_ready"> <child name="acpi_report_rom"/> </service>}
 	}
 
 	return ""
@@ -136,6 +160,11 @@ proc platform_drv_add_routing {} {
 
 
 proc platform_drv_config_config {} {
+	if {[acpi_drv_name] eq "acpica"} {
+		return {
+		<config acpi_ready="yes">}
+	}
+
 	if {[have_spec acpi] || [have_spec arm] || [have_spec muen]} {
 		return {
 		<config>}
@@ -153,14 +182,34 @@ proc platform_drv_config {} {
 
 		append drv_config {
 	<start name="acpi_drv" } [platform_drv_priority] { caps="400" >
-		<resource name="RAM" quantum="3M"/>
+		<binary name="} [acpi_drv_name] {"/>}
+
+		if {[acpi_drv_name] eq "acpica"} {
+			append drv_config {
+		<resource name="RAM" quantum="5M"/>
+		<config acpi_ready="yes" act_as_acpi_drv="yes" report="yes"/>}
+		} else {
+			append drv_config {
+		<resource name="RAM" quantum="3M"/>}
+		}
+
+		append drv_config {
 		<route>
 			<service name="IO_MEM"> <parent/> </service>
 			<service name="LOG">    <parent/> </service>
 			<service name="PD">     <parent/> </service>
 			<service name="RM">     <parent/> </service>
 			<service name="CPU">    <parent/> </service>
-			<service name="ROM">    <parent/> </service>
+			<service name="ROM">    <parent/> </service>}
+
+		append_if [expr {[acpi_drv_name] eq "acpica"}] drv_config {
+			<service name="IO_PORT">  <parent/> </service>
+			<service name="IRQ">      <parent/> </service>
+			<service name="Timer">    <child name="timer"/> </service>
+			<service name="Platform"> <child name="platform_drv"/> </service>
+			<service name="Acpi">     <child name="platform_drv"/> </service>}
+
+		append drv_config {
 			<service name="Report"> <child name="acpi_report_rom"/> </service>
 			<service name="ROM" label="platform_info"> <parent/> </service>
 		</route>
@@ -177,7 +226,12 @@ proc platform_drv_config {} {
 			<service name="Report" />
 		</provides>
 		<config>
-			<policy label="platform_drv -> acpi" report="acpi_drv -> acpi"/>
+			<policy label="platform_drv -> acpi" report="acpi_drv -> acpi"/>}
+
+		append_if [expr {[acpi_drv_name] eq "acpica"}] drv_config {
+			<policy label="platform_drv -> acpi_ready" report="acpi_drv -> acpi_ready"/>}
+
+		append drv_config {
 		</config>
 		<route>
 			<service name="LOG"> <parent/> </service>
diff --git a/repos/libports/run/acpica.run b/repos/libports/run/acpica.run
index 1845f9377..fe2514d1f 100644
--- a/repos/libports/run/acpica.run
+++ b/repos/libports/run/acpica.run
@@ -21,26 +21,30 @@ set build_components {
 	test/input
 }
 
+set use_acpica_as_acpi_drv 0
+
 source ${genode_dir}/repos/base/run/platform_drv.inc
 
-# override default platform driver policy
-proc platform_drv_policy {} {
-	return {
-			<policy label_prefix="ps2_drv"> <device name="PS2"/> </policy>
-			<policy label_prefix="acpica"> <pci class="ALL"/> </policy>}
-}
+if {!$use_acpica_as_acpi_drv} {
 
-# add routing information to dynamically generate change of 'system' ROM
-proc platform_drv_add_routing {} {
-	return {
-			<service name="ROM" label="system"> <child name="dynamic_rom"/> </service>
-			<service name="ROM" label="acpi_ready"> <child name="acpi_state"/> </service>}
-}
+	# override default platform driver policy
+	proc platform_drv_policy {} {
+		return {
+				<policy label_prefix="ps2_drv"> <device name="PS2"/> </policy>
+				<policy label_prefix="acpica"> <pci class="ALL"/> </policy>}
+	}
 
-# override default config to react on 'system' ROM changes for reset
-proc platform_drv_config_config {} {
-	return {
-		<config acpi="yes" system="yes" acpi_ready="yes">}
+	# add routing information
+	proc platform_drv_add_routing {} {
+		return {
+				<service name="ROM" label="acpi_ready"> <child name="acpi_state"/> </service>}
+	}
+
+	# override default config to react on 'acpi_ready' ROM change
+	proc platform_drv_config_config {} {
+		return {
+			<config acpi_ready="yes">}
+	}
 }
 
 append_platform_drv_build_components
@@ -68,15 +72,12 @@ set config {
 		<start name="timer">
 			<resource name="RAM" quantum="2M"/>
 			<provides><service name="Timer"/></provides>
-		</start>
-		<start name="acpica">
-<!--			<binary name="debug-acpica"/> -->
-			<resource name="RAM" quantum="4M"/>
+		</start>}
+
+append_if [expr !$use_acpica_as_acpi_drv] config {
+		<start name="acpica" caps="150">
+			<resource name="RAM" quantum="5M"/>
 			<config ld_verbose="yes" reset="no" poweroff="no" report="yes" acpi_ready="yes">
-<!-- required for "debug-acpica":
-				<vfs> <dir name="dev"> <log/> </dir> </vfs>
-				<libc stdout="/dev/log"/>
--->
 			</config>
 			<route>
 				<service name="ROM" label="system"> <child name="dynamic_rom"/> </service>
@@ -218,4 +219,4 @@ build_boot_image $boot_modules
 
 append qemu_args "-nographic "
 
-run_genode_until {\[init -\> acpica\].*SCI IRQ:.*\n} 30
+run_genode_until {\[init -\> acpi.*SCI IRQ:.*\n} 30
diff --git a/repos/os/run/pci.run b/repos/os/run/pci.run
index 266a2730e..35664f7ac 100644
--- a/repos/os/run/pci.run
+++ b/repos/os/run/pci.run
@@ -4,12 +4,22 @@ assert_spec pci
 #
 set build_components { core init test/pci }
 
+set use_acpica_as_acpi_drv 0
+
 source ${genode_dir}/repos/base/run/platform_drv.inc
 
 # override default platform driver policy
 proc platform_drv_policy {} {
-	return {
+	global use_acpica_as_acpi_drv
+	set policy ""
+
+	append_if $use_acpica_as_acpi_drv policy {
+			<policy label="acpi_drv -> ">    <pci class="ALL"/> </policy>}
+
+	append policy {
 			<policy label_prefix="test-pci"> <pci class="ALL"/> </policy>}
+
+	return $policy
 }
 
 append_platform_drv_build_components