Commit d234332c authored Dec 04, 2019 by Pavel Tatashin Committed by Will Deacon Jan 08, 2020

arm64: hibernate: pass the allocated pgdp to ttbr0



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@soleen.com>
Reviewed-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>

parent 62151678

arch/arm64/kernel/hibernate.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);

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