Interrupt work

.rustfmt.toml

@@ -0,0 +1,2 @@
+max_width = 119
+attr_fn_like_width = 110

Cargo.toml

@@ -1,5 +1,3 @@
-cargo-features = ["profile-rustflags"]
-
 [package]
 name = "rriscv"
 version = "0.1.0"
@@ -15,8 +13,9 @@ env_logger = "0.10.1"
 log = "0.4.20"
 signal-hook = "0.3.17"
 term = "0.7.0"
-log4rs = { version = "1.2.0", default-features = false, features = ["console_appender", "file_appender", "pattern_encoder"] }
+log4rs = { version = "1.2.0" }
 config = "0.13.4"
+crossbeam = { version = "0.8.3", features = ["crossbeam-channel"] }
 
 [profile.dev]
 opt-level = 0
@@ -30,5 +29,5 @@ opt-level = 3
 lto = "fat"
 opt-level = "z"
 codegen-units = 1
-rustflags = ["-C", "target-cpu=native"]
+#rustflags = ["-C", "target-cpu=native"]
 #panic = "abort"

README.md

@@ -42,6 +42,7 @@ flowchart LR
 | DTB   | Device Tree Blob                    |
 | HTIF  | Deprecated Host Device              |
 | FESVR | RISC-V Frontend Server              |
+| CLINT | Core Local Interruptor              |
 | PLIC  | Platform-Level Interrupt Controller |
 | AMO   | Atomic Memory Operation             |
 
@@ -121,6 +122,7 @@ limitations under the License.
 * [Demystifying the RISC-V Linux software stack](https://www.european-processor-initiative.eu/wp-content/uploads/2022/06/[email protected])
 * [6.S081: Interrupts](https://pdos.csail.mit.edu/6.828/2021/slides/6s081-lec-interrupts.pdf)
 * [RISC-V Bytes: Introduction to Instruction Formats](https://danielmangum.com/posts/risc-v-bytes-intro-instruction-formats/)
+* [RISC-V System, Booting, And Interrupts](https://marz.utk.edu/my-courses/cosc562/riscv/)
 
 ### Device Trees
 
@@ -134,3 +136,10 @@ limitations under the License.
 * [RISCOF](https://riscof.readthedocs.io/en/latest/installation.html)
 * [HTIF](https://github.com/riscv-software-src/riscv-isa-sim/issues/364)
 * [Spike](https://chipyard.readthedocs.io/en/latest/Software/Spike.html)
+
+### virtio
+
+* [virtio 1.3](https://docs.oasis-open.org/virtio/virtio/v1.3/csd01/virtio-v1.3-csd01.html)
+* [virtio ring - how data travels](https://www.redhat.com/en/blog/virtqueues-and-virtio-ring-how-data-travels)
+* [riscv-emu](https://github.com/sysprog21/riscv-emu/blob/master/virtio.c)
+* [Implementing a virtio-blk driver in my own operating system](https://brennan.io/2020/03/22/sos-block-device/)