Add 64-bit RISC-V support

Co-authored-by: Martin Kröning <[email protected]>
Signed-off-by: Martin Kröning <[email protected]>

Cargo.toml

@@ -71,7 +71,6 @@ ahash = { version = "0.8", default-features = false }
 bitflags = "1.3"
 crossbeam-utils = { version = "0.8", default-features = false }
 hashbrown = { version = "0.13", default-features = false }
-hermit-entry = { version = "0.9", features = ["kernel"] }
 hermit-sync = "0.1.0"
 include-transformed = { version = "0.2", optional = true }
 log = { version = "0.4", default-features = false }
@@ -85,6 +84,9 @@ qemu-exit = "3.0"
 futures-lite = { version = "1.11", default-features = false, optional = true }
 async-task = { version = "4.3", default-features = false, optional = true }
 
+[target.'cfg(not(target_arch = "riscv64"))'.dependencies]
+hermit-entry = { version = "0.9", features = ["kernel"] }
+
 [dependencies.smoltcp]
 version = "0.8"
 optional = true
@@ -117,10 +119,19 @@ x86 = { version = "0.52", default-features = false }
 version = "0.0.7"
 default-features = false
 
+[target.'cfg(target_arch = "riscv64")'.dependencies]
+riscv = "0.10"
+trapframe = "0.9"
+fdt = "0.1"
+tock-registers = "0.8"
+
 [workspace]
 members = [
 	"xtask",
 ]
 exclude = [
 	"hermit-builtins",
 ]
+
+[patch.crates-io]
+hermit-sync = { path = "../../hermit-sync" }

src/arch/mod.rs

@@ -2,6 +2,9 @@
 #[cfg(target_arch = "aarch64")]
 pub mod aarch64;
 
+#[cfg(target_arch = "riscv64")]
+pub mod riscv;
+
 #[cfg(target_arch = "x86_64")]
 pub mod x86_64;
 
@@ -29,6 +32,29 @@ pub use crate::arch::aarch64::kernel::{
 };
 #[cfg(target_arch = "aarch64")]
 pub use crate::arch::aarch64::*;
+#[cfg(target_arch = "riscv64")]
+pub use crate::arch::riscv::kernel::irq;
+#[cfg(target_arch = "riscv64")]
+pub use crate::arch::riscv::kernel::percore;
+#[cfg(target_arch = "riscv64")]
+use crate::arch::riscv::kernel::percore::core_scheduler;
+#[cfg(target_arch = "riscv64")]
+pub use crate::arch::riscv::kernel::processor;
+#[cfg(target_arch = "riscv64")]
+pub use crate::arch::riscv::kernel::processor::{set_oneshot_timer, wakeup_core};
+#[cfg(target_arch = "riscv64")]
+pub use crate::arch::riscv::kernel::scheduler;
+#[cfg(target_arch = "riscv64")]
+pub use crate::arch::riscv::kernel::switch;
+#[cfg(target_arch = "riscv64")]
+pub use crate::arch::riscv::kernel::systemtime::get_boot_time;
+#[cfg(target_arch = "riscv64")]
+pub use crate::arch::riscv::kernel::{
+	application_processor_init, boot_application_processors, boot_processor_init,
+	get_processor_count, message_output_init, output_message_buf, output_message_byte,
+};
+#[cfg(target_arch = "riscv64")]
+pub use crate::arch::riscv::*;
 #[cfg(target_arch = "x86_64")]
 pub use crate::arch::x86_64::kernel::apic::{set_oneshot_timer, wakeup_core};
 #[cfg(all(target_arch = "x86_64", target_os = "none", feature = "smp"))]