[RFC PATCH] powerpc: fix kexec failure on book3s/32
From: Christophe Leroy <hidden>
Date: 2019-05-23 05:33:02
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Fixes: 63b2bc619565 ("powerpc/mm/32s: Use BATs for STRICT_KERNEL_RWX")
Signed-off-by: Christophe Leroy <redacted>
---
arch/powerpc/kernel/machine_kexec_32.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/kernel/machine_kexec_32.c b/arch/powerpc/kernel/machine_kexec_32.c
index affe5dcce7f4..b6a4250b9ee0 100644
--- a/arch/powerpc/kernel/machine_kexec_32.c
+++ b/arch/powerpc/kernel/machine_kexec_32.c@@ -54,6 +54,8 @@ void default_machine_kexec(struct kimage *image) memcpy((void *)reboot_code_buffer, relocate_new_kernel, relocate_new_kernel_size); + mtsrin(mfsrin(reboot_code_buffer) & ~SR_NX, reboot_code_buffer); + flush_icache_range(reboot_code_buffer, reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); printk(KERN_INFO "Bye!\n");
--
2.13.3