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From: Pavel Tatashin <pasha.tatashin@soleen.com>
To: pasha.tatashin@soleen.com, jmorris@namei.org, sashal@kernel.org,
	ebiederm@xmission.com, kexec@lists.infradead.org,
	linux-kernel@vger.kernel.org, corbet@lwn.net,
	catalin.marinas@arm.com, will@kernel.org,
	linux-arm-kernel@lists.infradead.org, marc.zyngier@arm.com,
	james.morse@arm.com, vladimir.murzin@arm.com,
	matthias.bgg@gmail.com, bhsharma@redhat.com, linux-mm@kvack.org,
	mark.rutland@arm.com, steve.capper@arm.com, rfontana@redhat.com,
	tglx@linutronix.de
Subject: [PATCH v7 05/25] arm64: hibernate: pass the allocated pgdp to ttbr0
Date: Wed, 16 Oct 2019 16:00:14 -0400	[thread overview]
Message-ID: <20191016200034.1342308-6-pasha.tatashin@soleen.com> (raw)
In-Reply-To: <20191016200034.1342308-1-pasha.tatashin@soleen.com>

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>
---
 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);
-- 
2.23.0


  parent reply	other threads:[~2019-10-16 20:00 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-16 20:00 [PATCH v7 00/25] arm64: MMU enabled kexec relocation Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 01/25] kexec: quiet down kexec reboot Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 02/25] kexec: add machine_kexec_post_load() Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 03/25] arm64: kexec: remove unnecessary debug prints Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 04/25] arm64: kexec: make dtb_mem always enabled Pavel Tatashin
2019-10-16 20:00 ` Pavel Tatashin [this message]
2019-10-16 20:00 ` [PATCH v7 06/25] arm64: hibernate: use get_safe_page directly Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 07/25] arm64: hibernate: remove gotos as they are not needed Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 08/25] arm64: hibernate: rename dst to page in create_safe_exec_page Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 09/25] arm64: hibernate: add PUD_SECT_RDONLY Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 10/25] arm64: hibernate: add trans_pgd public functions Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 11/25] arm64: hibernate: move page handling function to new trans_pgd.c Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 12/25] arm64: trans_pgd: make trans_pgd_map_page generic Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 13/25] arm64: trans_pgd: pass allocator trans_pgd_create_copy Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 14/25] arm64: trans_pgd: pass NULL instead of init_mm to *_populate functions Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 15/25] arm64: kexec: move relocation function setup Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 16/25] arm64: kexec: call kexec_image_info only once Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 17/25] arm64: kexec: cpu_soft_restart change argument types Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 18/25] arm64: kexec: arm64_relocate_new_kernel clean-ups Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 19/25] arm64: kexec: arm64_relocate_new_kernel don't use x0 as temp Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 20/25] arm64: kexec: add expandable argument to relocation function Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 21/25] arm64: kexec: offset for " Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 22/25] arm64: kexec: kexec EL2 vectors Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 23/25] arm64: kexec: configure trans_pgd page table for kexec Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 24/25] arm64: kexec: enable MMU during kexec relocation Pavel Tatashin
2019-10-16 20:00 ` [PATCH v7 25/25] arm64: kexec: remove head from relocation argument Pavel Tatashin
2019-10-17 14:26 ` [PATCH v7 00/25] arm64: MMU enabled kexec relocation Pavel Tatashin

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