[xen staging] xen/riscv: implement sync_vcpu_execstate()

[patchbot@xxxxxxx]

commit 256479ba567766609435c83b5d5d5596c1c606e0
Author:     Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
AuthorDate: Fri Mar 6 17:33:30 2026 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Mar 10 09:27:47 2026 +0100

    xen/riscv: implement sync_vcpu_execstate()
    
    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>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/riscv/domain.c | 10 ++++++++++
 xen/arch/riscv/stubs.c  | 10 ----------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/xen/arch/riscv/domain.c b/xen/arch/riscv/domain.c
index 470eca3ad7..c327f44d07 100644
--- a/xen/arch/riscv/domain.c
+++ b/xen/arch/riscv/domain.c
@@ -278,6 +278,16 @@ void vcpu_kick(struct vcpu *v)
     }
 }
 
+void sync_local_execstate(void)
+{
+    /* Nothing to do -- no lazy switching */
+}
+
+void sync_vcpu_execstate(struct vcpu *v)
+{
+    /* Nothing to do -- no lazy switching */
+}
+
 static void __init __maybe_unused build_assertions(void)
 {
     /*
diff --git a/xen/arch/riscv/stubs.c b/xen/arch/riscv/stubs.c
index 2f3a0ce76a..acbb5b9123 100644
--- a/xen/arch/riscv/stubs.c
+++ b/xen/arch/riscv/stubs.c
@@ -91,16 +91,6 @@ void continue_running(struct vcpu *same)
     BUG_ON("unimplemented");
 }
 
-void sync_local_execstate(void)
-{
-    BUG_ON("unimplemented");
-}
-
-void sync_vcpu_execstate(struct vcpu *v)
-{
-    BUG_ON("unimplemented");
-}
-
 void startup_cpu_idle_loop(void)
 {
     BUG_ON("unimplemented");
--
generated by git-patchbot for /home/xen/git/xen.git#staging