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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, maz@kernel.org,
	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, selindag@gmail.com
Subject: [PATCH v9 18/18] arm64: kexec: remove head from relocation argument
Date: Wed, 25 Mar 2020 23:24:20 -0400	[thread overview]
Message-ID: <20200326032420.27220-19-pasha.tatashin@soleen.com> (raw)
In-Reply-To: <20200326032420.27220-1-pasha.tatashin@soleen.com>

Now, that relocation is done using virtual addresses, reloc_arg->head
is not needed anymore.

Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
---
 arch/arm64/include/asm/kexec.h    | 2 --
 arch/arm64/kernel/asm-offsets.c   | 1 -
 arch/arm64/kernel/machine_kexec.c | 1 -
 3 files changed, 4 deletions(-)

diff --git a/arch/arm64/include/asm/kexec.h b/arch/arm64/include/asm/kexec.h
index 8f4332ac607a..571a2ba886b9 100644
--- a/arch/arm64/include/asm/kexec.h
+++ b/arch/arm64/include/asm/kexec.h
@@ -100,7 +100,6 @@ extern const unsigned long kexec_el2_vectors_offset;
 
 /*
  * kern_reloc_arg is passed to kernel relocation function as an argument.
- * head		kimage->head, allows to traverse through relocation segments.
  * entry_addr	kimage->start, where to jump from relocation function (new
  *		kernel, or purgatory entry address).
  * kern_arg0	first argument to kernel is its dtb address. The other
@@ -116,7 +115,6 @@ extern const unsigned long kexec_el2_vectors_offset;
  * copy_len	Number of bytes that need to be copied
  */
 struct kern_reloc_arg {
-	phys_addr_t head;
 	phys_addr_t entry_addr;
 	phys_addr_t kern_arg0;
 	phys_addr_t kern_arg1;
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c
index 58ad5b7816ab..8673a5854807 100644
--- a/arch/arm64/kernel/asm-offsets.c
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -130,7 +130,6 @@ int main(void)
   DEFINE(SDEI_EVENT_PRIORITY,	offsetof(struct sdei_registered_event, priority));
 #endif
 #ifdef CONFIG_KEXEC_CORE
-  DEFINE(KEXEC_KRELOC_HEAD,		offsetof(struct kern_reloc_arg, head));
   DEFINE(KEXEC_KRELOC_ENTRY_ADDR,	offsetof(struct kern_reloc_arg, entry_addr));
   DEFINE(KEXEC_KRELOC_KERN_ARG0,	offsetof(struct kern_reloc_arg, kern_arg0));
   DEFINE(KEXEC_KRELOC_KERN_ARG1,	offsetof(struct kern_reloc_arg, kern_arg1));
diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c
index db96d2fab8b2..2d3290d7b122 100644
--- a/arch/arm64/kernel/machine_kexec.c
+++ b/arch/arm64/kernel/machine_kexec.c
@@ -162,7 +162,6 @@ int machine_kexec_post_load(struct kimage *kimage)
 	memcpy(reloc_code, kexec_relocate_code_start, kexec_relocate_code_size);
 	kimage->arch.kern_reloc = __pa(reloc_code) + kexec_kern_reloc_offset;
 	kimage->arch.kern_reloc_arg = __pa(kern_reloc_arg);
-	kern_reloc_arg->head = kimage->head;
 	kern_reloc_arg->entry_addr = kimage->start;
 	kern_reloc_arg->kern_arg0 = kimage->arch.dtb_mem;
 	/* Setup vector table only when EL2 is available, but no VHE */
-- 
2.17.1


      parent reply	other threads:[~2020-03-26  3:24 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-26  3:24 [PATCH v9 00/18] arm64: MMU enabled kexec relocation Pavel Tatashin
2020-03-26  3:24 ` [PATCH v9 01/18] arm64: kexec: make dtb_mem always enabled Pavel Tatashin
2020-04-29 17:00   ` James Morse
2021-01-23  0:17     ` Pavel Tatashin
2020-03-26  3:24 ` [PATCH v9 02/18] arm64: hibernate: move page handling function to new trans_pgd.c Pavel Tatashin
2020-04-29 17:00   ` James Morse
2021-01-23  0:18     ` Pavel Tatashin
2020-03-26  3:24 ` [PATCH v9 03/18] arm64: trans_pgd: make trans_pgd_map_page generic Pavel Tatashin
2020-04-29 17:01   ` James Morse
2021-01-22 21:52     ` Pavel Tatashin
2020-03-26  3:24 ` [PATCH v9 04/18] arm64: trans_pgd: pass allocator trans_pgd_create_copy Pavel Tatashin
2020-04-29 17:01   ` James Morse
2021-01-23  0:20     ` Pavel Tatashin
2020-03-26  3:24 ` [PATCH v9 05/18] arm64: trans_pgd: pass NULL instead of init_mm to *_populate functions Pavel Tatashin
2020-04-29 17:01   ` James Morse
2021-01-23  0:22     ` Pavel Tatashin
2020-03-26  3:24 ` [PATCH v9 06/18] arm64: mm: Always update TCR_EL1 from __cpu_set_tcr_t0sz() Pavel Tatashin
2020-03-26  3:24 ` [PATCH v9 07/18] arm64: trans_pgd: hibernate: idmap the single page that holds the copy page routines Pavel Tatashin
2020-04-29 17:01   ` James Morse
2021-01-23  0:35     ` Pavel Tatashin
2020-03-26  3:24 ` [PATCH v9 08/18] arm64: kexec: move relocation function setup Pavel Tatashin
2020-04-29 17:01   ` James Morse
2021-01-23  1:01     ` Pavel Tatashin
2020-03-26  3:24 ` [PATCH v9 09/18] arm64: kexec: call kexec_image_info only once Pavel Tatashin
2020-04-29 17:01   ` James Morse
2020-03-26  3:24 ` [PATCH v9 10/18] arm64: kexec: cpu_soft_restart change argument types Pavel Tatashin
2020-04-29 17:01   ` James Morse
2021-01-23  1:14     ` Pavel Tatashin
2020-03-26  3:24 ` [PATCH v9 11/18] arm64: kexec: arm64_relocate_new_kernel clean-ups Pavel Tatashin
2020-05-07 16:22   ` James Morse
2020-03-26  3:24 ` [PATCH v9 12/18] arm64: kexec: arm64_relocate_new_kernel don't use x0 as temp Pavel Tatashin
2020-05-07 16:22   ` James Morse
2020-03-26  3:24 ` [PATCH v9 13/18] arm64: kexec: add expandable argument to relocation function Pavel Tatashin
2020-05-07 16:22   ` James Morse
2021-01-23  2:49     ` Pavel Tatashin
2020-03-26  3:24 ` [PATCH v9 14/18] arm64: kexec: offset for " Pavel Tatashin
2020-05-07 16:22   ` James Morse
2020-03-26  3:24 ` [PATCH v9 15/18] arm64: kexec: kexec EL2 vectors Pavel Tatashin
2020-04-29 17:35   ` Marc Zyngier
2021-01-25 19:07     ` Pavel Tatashin
2020-05-07 16:21   ` James Morse
2020-03-26  3:24 ` [PATCH v9 16/18] arm64: kexec: configure trans_pgd page table for kexec Pavel Tatashin
2020-05-07 16:22   ` James Morse
2020-03-26  3:24 ` [PATCH v9 17/18] arm64: kexec: enable MMU during kexec relocation Pavel Tatashin
2020-03-26  3:24 ` Pavel Tatashin [this message]

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