[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH v2 3/4] xen/arm32: mpu: Implement a dummy enable_secondary_cpu_mm
- To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
- Date: Thu, 13 Mar 2025 18:28:49 +0000
- Arc-authentication-results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=lists.xenproject.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0)
- Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=rCCB+2kdz1MjvDwvxyZl5nJ4nx3YF7CxXAPxwOHJhLg=; b=kYm0X7AcKkit335bwC0aKn9a6h19XtgDQPZZ1v8cpGDUlbOOzgnKngBrs4oYbZkHHrKZ0kS+xuGd9CgpMrS7r1EHnzdsYitizRSdAx3H748pUWpW/9WIjspJY8RnSMf2chDL8UB3SHIYJfNsjHUH4PyDL/agPyBwmlIHp6B3CAmGGyY3nMRrr1fW+nHXday7uNpse84jiL+pqq6fAn0P9YLDX0Pc9yMusZCFb9wHfY/BqWWszuajUojVG4KCQkl3A6oiKI3eYqX3KIamC6CZn7oNA/rQU7fk+So3JiVJAp1R//fP6N4EKttoP8CD5lfq1cMzqtQbHWbUdGDyereQVw==
- Arc-seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=knPN3K+pHdd7X5n3AiAb0VY8wgRkMrQQELE9nl2bl6U5qKtg9YClLD6msFZV9yCpUdtfgO+Uk1WT7vgGk5QRDjo3qQE0wwBtFli1J4GRXNexexhtQ4/WzfzdAhZ/rKhwtuYGjZibStZHREaFR7RqfrQZfnXawFczD3ikUKS8UMz/Y8+/dx4j0DYG42ciqq1Bb4Bqx6bY2peKV6NNYrAeuMtyM6DKjrCB/+NOqdzC3KN4VspqDIojZDTcXPUTfuh8uKIYNzcy1RCbkcOHzqOk08gvRciccFROVOhF/xhCOoib4UHipnOF37GlI/NVWBDT0KN4Aj15twjr5IbtzkodPQ==
- Cc: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, "Volodymyr Babchuk" <Volodymyr_Babchuk@xxxxxxxx>, Luca Fancellu <luca.fancellu@xxxxxxx>
- Delivery-date: Thu, 13 Mar 2025 18:32:17 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Secondary cpus initialization is not yet supported. Thus, we print an
appropriate message and put the secondary cpus in WFE state.
Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
Reviewed-by: Luca Fancellu <luca.fancellu@xxxxxxx>
---
Changes from :-
v1 - 1. Add R-b.
xen/arch/arm/arm32/mpu/head.S | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/xen/arch/arm/arm32/mpu/head.S b/xen/arch/arm/arm32/mpu/head.S
index 40648ce1a8..b6d31701f2 100644
--- a/xen/arch/arm/arm32/mpu/head.S
+++ b/xen/arch/arm/arm32/mpu/head.S
@@ -162,6 +162,16 @@ FUNC(enable_boot_cpu_mm)
ret
END(enable_boot_cpu_mm)
+/*
+ * We don't yet support secondary CPUs bring-up. Implement a dummy helper to
+ * please the common code.
+ */
+ENTRY(enable_secondary_cpu_mm)
+ PRINT("- SMP not enabled yet -\r\n")
+1: wfe
+ b 1b
+ENDPROC(enable_secondary_cpu_mm)
+
/*
* Local variables:
* mode: ASM
--
2.25.1
|
