From: Raphael Gault <raphael.gault@arm.com>
To: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, jpoimboe@redhat.com
Cc: raph.gault+kdev@gmail.com, peterz@infradead.org,
catalin.marinas@arm.com, will.deacon@arm.com,
Raphael Gault <raphael.gault@arm.com>,
julien.thierry.kdev@gmail.com
Subject: [RFC v4 17/18] arm64: kernel: Annotate non-standard stack frame functions
Date: Fri, 16 Aug 2019 13:24:02 +0100 [thread overview]
Message-ID: <20190816122403.14994-18-raphael.gault@arm.com> (raw)
In-Reply-To: <20190816122403.14994-1-raphael.gault@arm.com>
Annotate assembler functions which are callable but do not
setup a correct stack frame.
Signed-off-by: Raphael Gault <raphael.gault@arm.com>
---
arch/arm64/kernel/hyp-stub.S | 3 +++
arch/arm64/kvm/hyp-init.S | 3 +++
2 files changed, 6 insertions(+)
diff --git a/arch/arm64/kernel/hyp-stub.S b/arch/arm64/kernel/hyp-stub.S
index 73d46070b315..8917d42f38c7 100644
--- a/arch/arm64/kernel/hyp-stub.S
+++ b/arch/arm64/kernel/hyp-stub.S
@@ -6,6 +6,7 @@
* Author: Marc Zyngier <marc.zyngier@arm.com>
*/
+#include <linux/frame.h>
#include <linux/init.h>
#include <linux/linkage.h>
#include <linux/irqchip/arm-gic-v3.h>
@@ -42,6 +43,7 @@ ENTRY(__hyp_stub_vectors)
ventry el1_fiq_invalid // FIQ 32-bit EL1
ventry el1_error_invalid // Error 32-bit EL1
ENDPROC(__hyp_stub_vectors)
+asm_stack_frame_non_standard __hyp_stub_vectors
.align 11
@@ -69,6 +71,7 @@ el1_sync:
9: mov x0, xzr
eret
ENDPROC(el1_sync)
+asm_stack_frame_non_standard el1_sync
.macro invalid_vector label
\label:
diff --git a/arch/arm64/kvm/hyp-init.S b/arch/arm64/kvm/hyp-init.S
index 160be2b4696d..63deea39313d 100644
--- a/arch/arm64/kvm/hyp-init.S
+++ b/arch/arm64/kvm/hyp-init.S
@@ -12,6 +12,7 @@
#include <asm/pgtable-hwdef.h>
#include <asm/sysreg.h>
#include <asm/virt.h>
+#include <linux/frame.h>
.text
.pushsection .hyp.idmap.text, "ax"
@@ -118,6 +119,7 @@ CPU_BE( orr x4, x4, #SCTLR_ELx_EE)
/* Hello, World! */
eret
ENDPROC(__kvm_hyp_init)
+asm_stack_frame_non_standard __kvm_hyp_init
ENTRY(__kvm_handle_stub_hvc)
cmp x0, #HVC_SOFT_RESTART
@@ -159,6 +161,7 @@ reset:
eret
ENDPROC(__kvm_handle_stub_hvc)
+asm_stack_frame_non_standard __kvm_handle_stub_hvc
.ltorg
--
2.17.1
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next prev parent reply other threads:[~2019-08-16 12:29 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-16 12:23 [RFC v4 00/18] objtool: Add support for arm64 Raphael Gault
2019-08-16 12:23 ` [RFC v4 01/18] objtool: Add abstraction for computation of symbols offsets Raphael Gault
2019-08-22 16:30 ` Julien
2019-08-22 19:57 ` Josh Poimboeuf
2019-08-16 12:23 ` [RFC v4 02/18] objtool: orc: Refactor ORC API for other architectures to implement Raphael Gault
2019-08-22 19:59 ` Josh Poimboeuf
2019-08-16 12:23 ` [RFC v4 03/18] objtool: Move registers and control flow to arch-dependent code Raphael Gault
2019-08-22 20:00 ` Josh Poimboeuf
2019-08-16 12:23 ` [RFC v4 04/18] objtool: arm64: Add required implementation for supporting the aarch64 architecture in objtool Raphael Gault
2019-08-22 20:00 ` Josh Poimboeuf
2019-08-16 12:23 ` [RFC v4 05/18] objtool: special: Adapt special section handling Raphael Gault
2019-08-22 20:02 ` Josh Poimboeuf
2019-08-22 20:18 ` Julien
2019-08-16 12:23 ` [RFC v4 06/18] objtool: arm64: Adapt the stack frame checks for arm architecture Raphael Gault
2019-08-22 20:03 ` Josh Poimboeuf
2019-08-16 12:23 ` [RFC v4 07/18] objtool: Introduce INSN_UNKNOWN type Raphael Gault
2019-08-22 20:04 ` Josh Poimboeuf
2019-08-22 20:45 ` Julien
2019-08-22 21:51 ` Josh Poimboeuf
2019-08-16 12:23 ` [RFC v4 08/18] objtool: Refactor switch-tables code to support other architectures Raphael Gault
2019-08-22 20:04 ` Josh Poimboeuf
2019-08-16 12:23 ` [RFC v4 09/18] gcc-plugins: objtool: Add plugin to detect switch table on arm64 Raphael Gault
2019-08-22 20:05 ` Josh Poimboeuf
2019-08-16 12:23 ` [RFC v4 10/18] objtool: arm64: Implement functions to add switch tables alternatives Raphael Gault
2019-08-23 16:35 ` Julien
2019-08-16 12:23 ` [RFC v4 11/18] arm64: alternative: Mark .altinstr_replacement as containing executable instructions Raphael Gault
2019-08-16 12:23 ` [RFC v4 12/18] arm64: assembler: Add macro to annotate asm function having non standard stack-frame Raphael Gault
2019-08-22 20:10 ` Josh Poimboeuf
2019-08-16 12:23 ` [RFC v4 13/18] arm64: sleep: Prevent stack frame warnings from objtool Raphael Gault
2019-08-22 20:16 ` Josh Poimboeuf
2019-08-16 12:23 ` [RFC v4 14/18] arm64: kvm: Annotate non-standard stack frame functions Raphael Gault
2019-08-16 12:24 ` [RFC v4 15/18] arm64: kernel: Add exception on kuser32 to prevent stack analysis Raphael Gault
2019-08-16 12:24 ` [RFC v4 16/18] arm64: crypto: Add exceptions for crypto object " Raphael Gault
2019-08-22 20:19 ` Josh Poimboeuf
2019-08-16 12:24 ` Raphael Gault [this message]
2019-08-16 12:24 ` [RFC v4 18/18] objtool: arm64: Enable stack validation for arm64 Raphael Gault
2019-08-22 19:56 ` [RFC v4 00/18] objtool: Add support " Josh Poimboeuf
2019-08-23 12:00 ` Raphael Gault
2019-10-14 8:37 ` Julien Thierry
2019-10-14 13:27 ` Raphaël Gault
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