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commit 1f8eb18e1de3fe291b98ad44352677d6e41e15a9
Author: buxiasen <buxia...@xiaomi.com>
AuthorDate: Fri Apr 25 18:11:34 2025 +0800
arch/arm/goldfish: fix mmu not enabled when smp
If smp enabled, mmu default disabled in arm_head.S,
We have to re-enable it in arm_boot per-chip.
Causing knsh-smp failed with user-space memory access
Signed-off-by: buxiasen <buxia...@xiaomi.com>
---
arch/arm/src/goldfish/goldfish_boot.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm/src/goldfish/goldfish_boot.c
b/arch/arm/src/goldfish/goldfish_boot.c
index 233451394c..7a7e38afc7 100644
--- a/arch/arm/src/goldfish/goldfish_boot.c
+++ b/arch/arm/src/goldfish/goldfish_boot.c
@@ -33,6 +33,7 @@
#include "goldfish_memorymap.h"
#include "smp.h"
#include "gic.h"
+#include "scu.h"
#ifdef CONFIG_DEVICE_TREE
# include <nuttx/fdt.h>
@@ -77,6 +78,12 @@ void arm_boot(void)
goldfish_setupmappings();
+#ifdef CONFIG_SMP
+ /* Enable SMP cache coherency for CPU0 */
+
+ arm_enable_smp(0);
+#endif
+
arm_fpuconfig();
#ifdef CONFIG_ARM_PSCI
