[Skiboot] [PATCH 3/3] init: add missing sync_icache after exception vector patching
Nicholas Piggin
npiggin at gmail.com
Wed Aug 30 16:20:11 AEST 2017
There are two cases where sync_icache is not called immediately
after instructions are modified.
Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
---
core/init.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/core/init.c b/core/init.c
index a96a69c8..8951e17b 100644
--- a/core/init.c
+++ b/core/init.c
@@ -384,6 +384,7 @@ static bool load_kernel(void)
if (kernel_entry < 0x2000) {
cpu_set_pm_enable(false);
memcpy(NULL, old_vectors, 0x2000);
+ sync_icache();
}
do_stb = true;
stb_container = kh; /* probably incorrect */
@@ -723,6 +724,7 @@ void setup_reset_vector(void)
dst = (uint32_t *)0x100;
while(src < &reset_patch_end)
*(dst++) = *(src++);
+ sync_icache();
}
void copy_exception_vectors(void)
--
2.13.3
More information about the Skiboot
mailing list