sim: Add PSOC Edge E8x device with the new "max-align-16" feature

- Add simulator support for Infineon PSOC Edge E81–E84 silicon, enforce a minimum write size of 16 bytes
- Add the "max-align-16" feature to the simulator and CI/CD test workflows

Signed-off-by: Taras <Taras.B@infineon.com>

Author: Ta-ras

.github/workflows/sim.yaml

@@ -20,7 +20,7 @@ jobs:
         - "sig-rsa,sig-rsa3072,overwrite-only,validate-primary-slot,swap-move,swap-offset"
         - "enc-rsa,enc-rsa max-align-32"
         - "enc-aes256-rsa,enc-aes256-rsa max-align-32"
-        - "enc-ec256,enc-ec256 max-align-32"
+        - "enc-ec256,enc-ec256 overwrite-only validate-primary-slot max-align-16,enc-ec256 max-align-32"
         - "enc-aes256-ec256,enc-aes256-ec256 max-align-32"
         - "enc-x25519,enc-x25519 max-align-32"
         - "enc-aes256-x25519,enc-aes256-x25519 max-align-32"
@@ -44,7 +44,8 @@ jobs:
         - "sig-rsa validate-primary-slot ram-load multiimage"
         - "sig-rsa validate-primary-slot direct-xip multiimage"
         - "sig-ecdsa hw-rollback-protection multiimage"
-        - "sig-ecdsa-psa,sig-ecdsa-psa sig-p384"
+        - "sig-ecdsa-psa,sig-ecdsa-psa sig-p384,sig-ecdsa-psa swap-move bootstrap max-align-16"
+        - "sig-ecdsa-psa enc-ec256 max-align-16, sig-ecdsa-psa enc-ec256 swap-offset validate-primary-slot max-align-16"
         - "ram-load enc-aes256-kw multiimage"
         - "ram-load enc-aes256-kw sig-ecdsa-mbedtls multiimage"
     runs-on: ubuntu-latest

sim/Cargo.toml

@@ -32,6 +32,7 @@ multiimage = ["mcuboot-sys/multiimage"]
 ram-load = ["mcuboot-sys/ram-load"]
 direct-xip = ["mcuboot-sys/direct-xip"]
 downgrade-prevention = ["mcuboot-sys/downgrade-prevention"]
+max-align-16 = ["mcuboot-sys/max-align-16"]
 max-align-32 = ["mcuboot-sys/max-align-32"]
 hw-rollback-protection = ["mcuboot-sys/hw-rollback-protection"]
 check-load-addr = ["mcuboot-sys/check-load-addr"]

sim/mcuboot-sys/Cargo.toml

@@ -90,6 +90,9 @@ direct-xip = []
 # Check (in software) against version downgrades.
 downgrade-prevention = []
 
+# Support images with 16-byte maximum write alignment value.
+max-align-16 = []
+
 # Support images with 32-byte maximum write alignment value.
 max-align-32 = []
 

sim/mcuboot-sys/build.rs

@@ -37,6 +37,7 @@ fn main() {
     let downgrade_prevention = env::var("CARGO_FEATURE_DOWNGRADE_PREVENTION").is_ok();
     let ram_load = env::var("CARGO_FEATURE_RAM_LOAD").is_ok();
     let direct_xip = env::var("CARGO_FEATURE_DIRECT_XIP").is_ok();
+    let max_align_16 = env::var("CARGO_FEATURE_MAX_ALIGN_16").is_ok();
     let max_align_32 = env::var("CARGO_FEATURE_MAX_ALIGN_32").is_ok();
     let hw_rollback_protection = env::var("CARGO_FEATURE_HW_ROLLBACK_PROTECTION").is_ok();
     let check_load_addr = env::var("CARGO_FEATURE_CHECK_LOAD_ADDR").is_ok();
@@ -50,6 +51,8 @@ fn main() {
 
     if max_align_32 {
         conf.conf.define("MCUBOOT_BOOT_MAX_ALIGN", Some("32"));
+    } else if max_align_16 {
+        conf.conf.define("MCUBOOT_BOOT_MAX_ALIGN", Some("16"));
     } else {
         conf.conf.define("MCUBOOT_BOOT_MAX_ALIGN", Some("8"));
     }

sim/src/image.rs

@@ -589,6 +589,20 @@ impl ImagesBuilder {
                 flash.insert(dev_id, dev);
                 (flash, Rc::new(areadesc), &[])
             }
+            DeviceName::PSOCEdgeE8x => {
+                let dev = SimFlash::new(vec![4096; 96], align as usize, erased_val);
+
+                let dev_id = 0;
+                let mut areadesc = AreaDesc::new();
+                areadesc.add_flash_sectors(dev_id, &dev);
+                areadesc.add_image(0x020000, 0x010000, FlashId::Image0, dev_id);
+                areadesc.add_image(0x030000, 0x010000, FlashId::Image1, dev_id);
+                areadesc.add_image(0x040000, 0x002000, FlashId::ImageScratch, dev_id);
+
+                let mut flash = SimMultiFlash::new();
+                flash.insert(dev_id, dev);
+                (flash, Rc::new(areadesc), &[Caps::SwapUsingScratch, Caps::OverwriteUpgrade, Caps::SwapUsingMove, Caps::RamLoad, Caps::DirectXip])
+            }
         }
     }
 
@@ -2386,12 +2400,18 @@ pub struct SlotInfo {
     pub dev_id: u8,
 }
 
-#[cfg(not(feature = "max-align-32"))]
+#[cfg(all(not(feature = "max-align-16"), not(feature = "max-align-32")))]
 const MAGIC: &[u8] = &[0x77, 0xc2, 0x95, 0xf3,
                        0x60, 0xd2, 0xef, 0x7f,
                        0x35, 0x52, 0x50, 0x0f,
                        0x2c, 0xb6, 0x79, 0x80];
 
+#[cfg(feature = "max-align-16")]
+const MAGIC: &[u8] = &[0x10, 0x00, 0x2d, 0xe1,
+                       0x5d, 0x29, 0x41, 0x0b,
+                       0x8d, 0x77, 0x67, 0x9c,
+                       0x11, 0x0f, 0x1f, 0x8a];
+
 #[cfg(feature = "max-align-32")]
 const MAGIC: &[u8] = &[0x20, 0x00, 0x2d, 0xe1,
                        0x5d, 0x29, 0x41, 0x0b,
@@ -2475,11 +2495,16 @@ pub fn show_sizes() {
     }
 }
 
-#[cfg(not(feature = "max-align-32"))]
+#[cfg(all(not(feature = "max-align-16"), not(feature = "max-align-32")))]
 fn test_alignments() -> &'static [usize] {
     &[1, 2, 4, 8]
 }
 
+#[cfg(feature = "max-align-16")]
+fn test_alignments() -> &'static [usize] {
+    &[16]
+}
+
 #[cfg(feature = "max-align-32")]
 fn test_alignments() -> &'static [usize] {
     &[32]

sim/src/lib.rs

@@ -64,7 +64,7 @@ struct Args {
 #[derive(Copy, Clone, Debug, Deserialize)]
 pub enum DeviceName {
     Stm32f4, Stm32f4SpiFlash, K64f, K64fBig, K64fMulti, Nrf52840, Nrf52840SpiFlash,
-    Nrf52840UnequalSlots, Nrf52840UnequalSlotsLargerSlot1,
+    Nrf52840UnequalSlots, Nrf52840UnequalSlotsLargerSlot1,PSOCEdgeE8x,
 }
 
 pub static ALL_DEVICES: &[DeviceName] = &[
@@ -77,6 +77,7 @@ pub static ALL_DEVICES: &[DeviceName] = &[
     DeviceName::Nrf52840SpiFlash,
     DeviceName::Nrf52840UnequalSlots,
     DeviceName::Nrf52840UnequalSlotsLargerSlot1,
+    DeviceName::PSOCEdgeE8x,
 ];
 
 impl fmt::Display for DeviceName {
@@ -91,6 +92,7 @@ impl fmt::Display for DeviceName {
             DeviceName::Nrf52840SpiFlash => "Nrf52840SpiFlash",
             DeviceName::Nrf52840UnequalSlots => "Nrf52840UnequalSlots",
             DeviceName::Nrf52840UnequalSlotsLargerSlot1 => "Nrf52840UnequalSlotsLargerSlot1",
+            DeviceName::PSOCEdgeE8x => "PSOCEdgeE8x",
         };
         f.write_str(name)
     }