diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ca372dd4..8119429c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -54,6 +54,8 @@ jobs:
           rustup target add thumbv7em-none-eabi
           rustup target add thumbv7m-none-eabi
           rustup target add thumbv8m.main-none-eabi
+          rustup target add x86_64-unknown-none
+          rustup target add aarch64-unknown-none
 
       # Note that Renode is only provided for x86_64 targets.  This matches the github runners.
       - name: Install Renode
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 21c88e57..1009a159 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,6 +49,10 @@ function(_rust_map_target)
     else()
       message(FATAL_ERROR "Rust: Unsupported riscv ISA")
     endif()
+  elseif(CONFIG_ARCH_POSIX AND CONFIG_64BIT AND (${CMAKE_HOST_SYSTEM_PROCESSOR} MATCHES "x86_64"))
+    set(RUST_TARGET "x86_64-unknown-none" PARENT_SCOPE)
+  elseif(CONFIG_ARCH_POSIX AND CONFIG_64BIT AND (${CMAKE_HOST_SYSTEM_PROCESSOR} MATCHES "aarch64"))
+    set(RUST_TARGET "aarch64-unknown-none" PARENT_SCOPE)
   else()
     message(FATAL_ERROR "Rust: Add support for other target")
   endif()
diff --git a/Kconfig b/Kconfig
index 4952d773..0b2d057b 100644
--- a/Kconfig
+++ b/Kconfig
@@ -8,7 +8,8 @@ menu "Rust Language Support"
 config RUST_SUPPORTED
 	bool
 	default y if ((CPU_CORTEX_M || \
-				(RISCV && !RISCV_ISA_RV32E && !RISCV_ISA_RV128I)) && \
+				(RISCV && !RISCV_ISA_RV32E && !RISCV_ISA_RV128I) || \
+				(ARCH_POSIX && 64BIT)) && \
 				!TIMER_READS_ITS_FREQUENCY_AT_RUNTIME)
 	help
 	  Selected for platforms that have support for Rust.
diff --git a/dt-rust.yaml b/dt-rust.yaml
index 8eb8db92..c848277d 100644
--- a/dt-rust.yaml
+++ b/dt-rust.yaml
@@ -45,6 +45,7 @@
       - "nordic,nrf52-flash-controller"
       - "nordic,nrf51-flash-controller"
       - "raspberrypi,pico-flash-controller"
+      - "zephyr,sim-flash"
       level: 0
   actions:
   - type: instance