feat(arch/exception_handler): enable exception handlers to suspend vCPU

Implemented support for abort and exception handlers to suspend the current vCPU based on the vCPU active flag. Signed-off-by: João Peixoto <[email protected]>
bao-project · Sep 19, 2024 · f3b87e3 · f3b87e3
1 parent 66bcb7b
commit f3b87e3
Show file tree

Hide file tree

Showing 2 changed files with 6 additions and 0 deletions.
diff --git a/src/arch/armv8/aborts.c b/src/arch/armv8/aborts.c
@@ -195,6 +195,9 @@ void aborts_sync_handler(void)
     abort_handler_t handler = abort_handlers[ec];
     if (handler) {
         handler(iss, ipa_fault_addr, il, ec);
+        if (cpu()->vcpu->active == false) {
+            cpu_idle();
+        }
     } else {
         ERROR("no handler for abort ec = 0x%x", ec); // unknown guest exception
     }

diff --git a/src/arch/riscv/sync_exceptions.c b/src/arch/riscv/sync_exceptions.c
@@ -153,4 +153,7 @@ void sync_exception_handler(void)
     }
 
     vcpu_writepc(cpu()->vcpu, vcpu_readpc(cpu()->vcpu) + pc_step);
+    if (cpu()->vcpu->active == false) {
+        cpu_idle();
+    }
 }