From: Raphael Gault <raphael.gault@arm.com>
To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: jpoimboe@redhat.com, peterz@infradead.org,
catalin.marinas@arm.com, will.deacon@arm.com,
julien.thierry@arm.com, Raphael Gault <raphael.gault@arm.com>
Subject: [RFC V3 17/18] arm64: kernel: Annotate non-standard stack frame functions
Date: Mon, 24 Jun 2019 10:55:47 +0100 [thread overview]
Message-ID: <20190624095548.8578-18-raphael.gault@arm.com> (raw)
In-Reply-To: <20190624095548.8578-1-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 | 2 ++
arch/arm64/kvm/hyp-init.S | 2 ++
2 files changed, 4 insertions(+)
diff --git a/arch/arm64/kernel/hyp-stub.S b/arch/arm64/kernel/hyp-stub.S
index 73d46070b315..a382f0e33735 100644
--- a/arch/arm64/kernel/hyp-stub.S
+++ b/arch/arm64/kernel/hyp-stub.S
@@ -42,6 +42,7 @@ 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 +70,7 @@ 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..65b7c12b9aa8 100644
--- a/arch/arm64/kvm/hyp-init.S
+++ b/arch/arm64/kvm/hyp-init.S
@@ -118,6 +118,7 @@ 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 +160,7 @@ reset:
eret
ENDPROC(__kvm_handle_stub_hvc)
+asm_stack_frame_non_standard __kvm_handle_stub_hvc
.ltorg
--
2.17.1
next prev parent reply other threads:[~2019-06-24 9:56 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-24 9:55 [RFC V3 00/18] objtool: Add support for arm64 Raphael Gault
2019-06-24 9:55 ` [RFC V3 01/18] objtool: Add abstraction for computation of symbols offsets Raphael Gault
2019-06-24 9:55 ` [RFC V3 02/18] objtool: orc: Refactor ORC API for other architectures to implement Raphael Gault
2019-06-24 9:55 ` [RFC V3 03/18] objtool: Move registers and control flow to arch-dependent code Raphael Gault
2019-06-24 9:55 ` [RFC V3 04/18] objtool: arm64: Add required implementation for supporting the aarch64 architecture in objtool Raphael Gault
2019-06-24 9:55 ` [RFC V3 05/18] objtool: special: Adapt special section handling Raphael Gault
2019-06-24 9:55 ` [RFC V3 06/18] objtool: arm64: Adapt the stack frame checks for arm architecture Raphael Gault
2019-06-24 9:55 ` [RFC V3 07/18] objtool: Introduce INSN_UNKNOWN type Raphael Gault
2019-06-24 9:55 ` [RFC V3 08/18] objtool: Refactor switch-tables code to support other architectures Raphael Gault
2019-06-24 9:55 ` [RFC V3 09/18] gcc-plugins: objtool: Add plugin to detect switch table on arm64 Raphael Gault
2019-06-24 9:55 ` [RFC V3 10/18] objtool: arm64: Implement functions to add switch tables alternatives Raphael Gault
2019-06-24 9:55 ` [RFC V3 11/18] arm64: alternative: Mark .altinstr_replacement as containing executable instructions Raphael Gault
2019-07-01 14:51 ` Catalin Marinas
2019-06-24 9:55 ` [RFC V3 12/18] arm64: assembler: Add macro to annotate asm function having non standard stack-frame Raphael Gault
2019-07-01 14:40 ` Catalin Marinas
2019-07-02 9:49 ` Raphael Gault
2019-06-24 9:55 ` [RFC V3 13/18] arm64: sleep: Prevent stack frame warnings from objtool Raphael Gault
2019-06-24 9:55 ` [RFC V3 14/18] arm64: kvm: Annotate non-standard stack frame functions Raphael Gault
2019-06-24 9:55 ` [RFC V3 15/18] arm64: kernel: Add exception on kuser32 to prevent stack analysis Raphael Gault
2019-06-24 9:55 ` [RFC V3 16/18] arm64: crypto: Add exceptions for crypto object " Raphael Gault
2019-06-24 9:55 ` Raphael Gault [this message]
2019-06-24 9:55 ` [RFC V3 18/18] objtool: arm64: Enable stack validation for arm64 Raphael Gault
2019-07-10 7:31 ` [RFC V3 00/18] objtool: Add support " Raphael Gault
2019-07-10 14:33 ` Josh Poimboeuf
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