diff --git a/guest/pvmfw/Android.bp b/guest/pvmfw/Android.bp
index a5b7494..477d0a8 100644
--- a/guest/pvmfw/Android.bp
+++ b/guest/pvmfw/Android.bp
@@ -19,6 +19,7 @@
         "libcoset_nostd",
         "libcstr",
         "libdiced_open_dice_nostd",
+        "libhypervisor_backends",
         "liblibfdt_nostd",
         "liblog_rust_nostd",
         "libpvmfw_avb_nostd",
diff --git a/guest/pvmfw/src/device_assignment.rs b/guest/pvmfw/src/device_assignment.rs
index 9b55cff..f37f443 100644
--- a/guest/pvmfw/src/device_assignment.rs
+++ b/guest/pvmfw/src/device_assignment.rs
@@ -28,12 +28,12 @@
 use core::iter::Iterator;
 use core::mem;
 use core::ops::Range;
+// TODO(b/308694211): Use hypervisor_backends::{DeviceAssigningHypervisor, Error} proper for tests.
+#[cfg(not(test))]
+use hypervisor_backends::DeviceAssigningHypervisor;
 use libfdt::{Fdt, FdtError, FdtNode, FdtNodeMut, Phandle, Reg};
 use log::error;
 use log::warn;
-// TODO(b/308694211): Use vmbase::hyp::{DeviceAssigningHypervisor, Error} proper for tests.
-#[cfg(not(test))]
-use vmbase::hyp::DeviceAssigningHypervisor;
 use zerocopy::byteorder::big_endian::U32;
 use zerocopy::FromBytes as _;
 
diff --git a/guest/pvmfw/src/entry.rs b/guest/pvmfw/src/entry.rs
index 64a03cc..ce911b8 100644
--- a/guest/pvmfw/src/entry.rs
+++ b/guest/pvmfw/src/entry.rs
@@ -20,6 +20,7 @@
 use core::mem::{drop, size_of};
 use core::ops::Range;
 use core::slice;
+use hypervisor_backends::get_mmio_guard;
 use log::error;
 use log::info;
 use log::warn;
@@ -28,7 +29,6 @@
 use vmbase::{
     arch::aarch64::min_dcache_line_size,
     configure_heap, console_writeln,
-    hyp::get_mmio_guard,
     layout::{self, crosvm, UART_PAGE_ADDR},
     main,
     memory::{MemoryTracker, MEMORY, SIZE_128KB, SIZE_4KB},
diff --git a/guest/pvmfw/src/fdt.rs b/guest/pvmfw/src/fdt.rs
index 0381f3e..6bbb05e 100644
--- a/guest/pvmfw/src/fdt.rs
+++ b/guest/pvmfw/src/fdt.rs
@@ -30,6 +30,8 @@
 use core::mem::size_of;
 use core::ops::Range;
 use cstr::cstr;
+use hypervisor_backends::get_device_assigner;
+use hypervisor_backends::get_mem_sharer;
 use libfdt::AddressRange;
 use libfdt::CellIterator;
 use libfdt::Fdt;
@@ -46,7 +48,6 @@
 use vmbase::fdt::pci::PciMemoryFlags;
 use vmbase::fdt::pci::PciRangeType;
 use vmbase::fdt::SwiotlbInfo;
-use vmbase::hyp;
 use vmbase::layout::{crosvm::MEM_START, MAX_VIRT_ADDR};
 use vmbase::memory::SIZE_4KB;
 use vmbase::util::RangeExt as _;
@@ -1147,9 +1148,9 @@
 
     let device_assignment = match vm_dtbo {
         Some(vm_dtbo) => {
-            if let Some(hypervisor) = hyp::get_device_assigner() {
+            if let Some(hypervisor) = get_device_assigner() {
                 // TODO(ptosi): Cache the (single?) granule once, in vmbase.
-                let granule = hyp::get_mem_sharer()
+                let granule = get_mem_sharer()
                     .ok_or_else(|| {
                         error!("No MEM_SHARE found during device assignment validation");
                         RebootReason::InternalError
diff --git a/guest/pvmfw/src/memory.rs b/guest/pvmfw/src/memory.rs
index f49d79b..8e8b338 100644
--- a/guest/pvmfw/src/memory.rs
+++ b/guest/pvmfw/src/memory.rs
@@ -23,12 +23,12 @@
 use core::ops::Range;
 use core::result;
 use core::slice;
+use hypervisor_backends::get_mem_sharer;
 use log::debug;
 use log::error;
 use log::info;
 use log::warn;
 use vmbase::{
-    hyp::get_mem_sharer,
     layout::{self, crosvm},
     memory::{PageTable, MEMORY, SIZE_2MB, SIZE_4KB},
     util::align_up,
diff --git a/guest/rialto/Android.bp b/guest/rialto/Android.bp
index 7bcfd54..8afb8ba 100644
--- a/guest/rialto/Android.bp
+++ b/guest/rialto/Android.bp
@@ -14,6 +14,7 @@
         "libciborium_nostd",
         "libcstr",
         "libdiced_open_dice_nostd",
+        "libhypervisor_backends",
         "liblibfdt_nostd",
         "liblog_rust_nostd",
         "libservice_vm_comm_nostd",
diff --git a/guest/rialto/src/error.rs b/guest/rialto/src/error.rs
index ba5f4b0..f021c36 100644
--- a/guest/rialto/src/error.rs
+++ b/guest/rialto/src/error.rs
@@ -17,11 +17,10 @@
 use aarch64_paging::MapError;
 use core::{fmt, result};
 use diced_open_dice::DiceError;
+use hypervisor_backends::Error as HypervisorError;
 use libfdt::FdtError;
 use service_vm_comm::RequestProcessingError;
-use vmbase::{
-    fdt::pci::PciError, hyp::Error as HypervisorError, memory::MemoryTrackerError, virtio::pci,
-};
+use vmbase::{fdt::pci::PciError, memory::MemoryTrackerError, virtio::pci};
 
 pub type Result<T> = result::Result<T, Error>;
 
diff --git a/guest/rialto/src/main.rs b/guest/rialto/src/main.rs
index ec9a76e..244010d 100644
--- a/guest/rialto/src/main.rs
+++ b/guest/rialto/src/main.rs
@@ -32,6 +32,7 @@
 use core::num::NonZeroUsize;
 use core::slice;
 use diced_open_dice::{bcc_handover_parse, DiceArtifacts};
+use hypervisor_backends::get_mem_sharer;
 use libfdt::FdtError;
 use log::{debug, error, info};
 use service_vm_comm::{ServiceVmRequest, VmType};
@@ -47,7 +48,6 @@
     fdt::pci::PciInfo,
     fdt::SwiotlbInfo,
     generate_image_header,
-    hyp::get_mem_sharer,
     layout::{self, crosvm},
     main,
     memory::{MemoryTracker, PageTable, MEMORY, PAGE_SIZE, SIZE_128KB},