Signed-off-by: Oleksii Kurochko <oleksii.kuroc...@gmail.com>
---
xen/arch/riscv/include/asm/processor.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/xen/arch/riscv/include/asm/processor.h
b/xen/arch/riscv/include/asm/processor.h
index 6db681d805..b6218a00a7 100644
--- a/xen/arch/riscv/include/asm/processor.h
+++ b/xen/arch/riscv/include/asm/processor.h
@@ -12,6 +12,9 @@
#ifndef __ASSEMBLY__
+/* TODO: need to be implemeted */
+#define get_processor_id() 0
+
/* On stack VCPU state */
struct cpu_user_regs
{
@@ -53,6 +56,18 @@ struct cpu_user_regs
unsigned long pregs;
};
+/* TODO: need to implement */
+#define cpu_to_core(_cpu) (0)
+#define cpu_to_socket(_cpu) (0)
+
+static inline void cpu_relax(void)
+{
+ int dummy;
+ /* In lieu of a halt instruction, induce a long-latency stall. */
+ __asm__ __volatile__ ("div %0, %0, zero" : "=r" (dummy));
+ barrier();
+}
+
static inline void wfi(void)
{
__asm__ __volatile__ ("wfi");
--
2.41.0
