[PATCH v3 16/16] xen/riscv: implement sync_vcpu_execstate()

[Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>]

The scheduler may call this function to force synchronization of given
vCPU's state. RISC-V does not support lazy context switching, so nothing
is done in sync_vcpu_execstate() and sync_local_execstate().

Signed-off-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
---
This patch is dependent on patch from ML:
  [PATCH] sched: move vCPU exec state barriers
---
Changes in v3:
 - Align sync_vcpu_execstate() with patch:
     [PATCH] sched: move vCPU exec state barriers
---
Changes in v2:
 - New patch.
---
 xen/arch/riscv/domain.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/xen/arch/riscv/domain.c b/xen/arch/riscv/domain.c
index 30a966f53c1d..ecb4ef8d0c89 100644
--- a/xen/arch/riscv/domain.c
+++ b/xen/arch/riscv/domain.c
@@ -245,3 +245,13 @@ void vcpu_kick(struct vcpu *v)
         smp_send_event_check_mask(cpumask_of(v->processor));
     }
 }
+
+void sync_local_execstate(void)
+{
+    /* Nothing to do -- no lazy switching */
+}
+
+void sync_vcpu_execstate(struct vcpu *v)
+{
+    /* Nothing to do -- no lazy switching */
+}
-- 
2.52.0