[PATCH v2 10/15] arm64: hyperv: Add hv_vtl_configure_reg_page() stub

Naman Jain
2026-04-23T12:44:01Z

ARM64 does not support the register page overlay, so provide a stub
that returns false. This pairs with the preceding commit that moved
hv_vtl_configure_reg_page() out of common code into architecture-
specific files.

Signed-off-by: Naman Jain <namjain@linux.microsoft.com>
---
arch/arm64/hyperv/hv_vtl.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/arch/arm64/hyperv/hv_vtl.c b/arch/arm64/hyperv/hv_vtl.c
index 59cbeb74e7b9..e07f6a865350 100644
--- a/arch/arm64/hyperv/hv_vtl.c
+++ b/arch/arm64/hyperv/hv_vtl.c
@@ -156,3 +156,10 @@ void mshv_vtl_return_call(struct mshv_vtl_cpu_context *vtl0)
kernel_neon_end(&fpsimd_state);
}
EXPORT_SYMBOL(mshv_vtl_return_call);
+
+bool hv_vtl_configure_reg_page(struct mshv_vtl_per_cpu *per_cpu)
+{
+ pr_debug("Register page not supported on ARM64\n");
+ return false;
+}
+EXPORT_SYMBOL_GPL(hv_vtl_configure_reg_page);
--
2.43.0