[PATCH v8 05/25] arm64: hibernate: pass the allocated pgdp to ttbr0
From: Pavel Tatashin
Date: Wed Dec 04 2019 - 10:59:58 EST
ttbr0 should be set to the beginning of pgdp, however, currently
in create_safe_exec_page it is set to pgdp after pgd_offset_raw(),
which works by accident.
Signed-off-by: Pavel Tatashin <pasha.tatashin@xxxxxxxxxx>
Reviewed-by: James Morse <james.morse@xxxxxxx>
---
arch/arm64/kernel/hibernate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.c
index a96b2921d22c..ef46ce66d7e8 100644
--- a/arch/arm64/kernel/hibernate.c
+++ b/arch/arm64/kernel/hibernate.c
@@ -269,7 +269,7 @@ static int create_safe_exec_page(void *src_start, size_t length,
*/
cpu_set_reserved_ttbr0();
local_flush_tlb_all();
- write_sysreg(phys_to_ttbr(virt_to_phys(pgdp)), ttbr0_el1);
+ write_sysreg(phys_to_ttbr(virt_to_phys(trans_pgd)), ttbr0_el1);
isb();
*phys_dst_addr = virt_to_phys((void *)dst);
--
2.24.0