Signed-off-by: Oleksii Kurochko <oleksii.kurochko@gmail.com>
---
 Changes in V5:
   - new patch
---
 xen/arch/riscv/include/asm/fence.h | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 xen/arch/riscv/include/asm/fence.h

diff --git a/xen/arch/riscv/include/asm/fence.h b/xen/arch/riscv/include/asm/fence.h
new file mode 100644
index 0000000000..27f46fa897
--- /dev/null
+++ b/xen/arch/riscv/include/asm/fence.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _ASM_RISCV_FENCE_H
+#define _ASM_RISCV_FENCE_H
+
+#define RISCV_ACQUIRE_BARRIER   "\tfence r , rw\n"
+#define RISCV_RELEASE_BARRIER   "\tfence rw, w\n"
+#define RISCV_FULL_BARRIER      "\tfence rw, rw\n"
+
+#endif	/* _ASM_RISCV_FENCE_H */
-- 
2.43.0

On 26.02.2024 18:38, Oleksii Kurochko wrote:
> Signed-off-by: Oleksii Kurochko <oleksii.kurochko@gmail.com>

Acked-by: Jan Beulich <jbeulich@suse.com>
albeit ...

> --- /dev/null
> +++ b/xen/arch/riscv/include/asm/fence.h
> @@ -0,0 +1,9 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
> +#ifndef _ASM_RISCV_FENCE_H
> +#define _ASM_RISCV_FENCE_H
> +
> +#define RISCV_ACQUIRE_BARRIER   "\tfence r , rw\n"
> +#define RISCV_RELEASE_BARRIER   "\tfence rw, w\n"
> +#define RISCV_FULL_BARRIER      "\tfence rw, rw\n"

... I'm not really happy with the \t and \n that are put here. My take
on this is that it is the responsibility of the use site to supply such
as and when necessary.

Jan