Add SBI debug trigger (DBTR) extension

The SBI implementation (specifically M-mode) has direct access to the debug trigger CSRs defined by the Sdtrig extension so let's add SBI debug trigger (DBTR) extension to allow supervisor software configure debug triggers. Signed-off-by: Anup Patel <apatel@ventanamicro.com>
riscv-non-isa · Jul 17, 2024 · e29131f · e29131f
1 parent 7f6755b
commit e29131f
Show file tree

Hide file tree

Showing 5 changed files with 407 additions and 0 deletions.
diff --git a/Makefile b/Makefile
@@ -35,6 +35,7 @@ DEPS += src/ext-nested-acceleration.adoc
 DEPS += src/ext-steal-time.adoc
 DEPS += src/ext-sse.adoc
 DEPS += src/ext-firmware-features.adoc
+DEPS += src/ext-debug-triggers.adoc
 DEPS += src/ext-experimental.adoc
 DEPS += src/ext-vendor.adoc
 DEPS += src/ext-firmware.adoc

diff --git a/riscv-sbi.adoc b/riscv-sbi.adoc
@@ -101,6 +101,8 @@ include::src/ext-sse.adoc[]
 
 include::src/ext-firmware-features.adoc[]
 
+include::src/ext-debug-triggers.adoc[]
+
 include::src/ext-experimental.adoc[]
 
 include::src/ext-vendor.adoc[]

diff --git a/src/changelog.adoc b/src/changelog.adoc
@@ -1,6 +1,7 @@
 == Change Log
 
 === Version 3.0-rc1
+* Added SBI DBTR extension
 * Added SBI FWFT extension
 * Added SBI SSE extension
 * Added error code SBI_ERR_BAD_RANGE