From: Raphael Gault <raphael.gault@arm.com>
To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: julien.thierry@arm.com, peterz@infradead.org,
catalin.marinas@arm.com, will.deacon@arm.com,
Raphael Gault <raphael.gault@arm.com>,
jpoimboe@redhat.com
Subject: [RFC 16/16] arm64: kernel: Annotate non-standard stack frame functions
Date: Thu, 16 May 2019 11:36:55 +0100 [thread overview]
Message-ID: <20190516103655.5509-17-raphael.gault@arm.com> (raw)
In-Reply-To: <20190516103655.5509-1-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 17f325ba831e..ded5a50d95bf 100644
--- a/arch/arm64/kernel/hyp-stub.S
+++ b/arch/arm64/kernel/hyp-stub.S
@@ -53,6 +53,7 @@ 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
@@ -80,6 +81,7 @@ 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 4576b86a5579..2ef2e2c51824 100644
--- a/arch/arm64/kvm/hyp-init.S
+++ b/arch/arm64/kvm/hyp-init.S
@@ -129,6 +129,7 @@ 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
@@ -170,6 +171,7 @@ 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:[~2019-05-16 10:54 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-16 10:36 [RFC V2 00/16] objtool: Add support for Arm64 Raphael Gault
2019-05-16 10:36 ` [RFC 01/16] objtool: Add abstraction for computation of symbols offsets Raphael Gault
2019-05-16 10:36 ` [RFC 02/16] objtool: orc: Refactor ORC API for other architectures to implement Raphael Gault
2019-05-16 10:36 ` [RFC 03/16] objtool: Move registers and control flow to arch-dependent code Raphael Gault
2019-05-16 10:36 ` [RFC 04/16] objtool: arm64: Add required implementation for supporting the aarch64 architecture in objtool Raphael Gault
2019-05-16 10:36 ` [RFC 05/16] objtool: arm64: Handle hypercalls as nops Raphael Gault
2019-05-16 10:36 ` [RFC 06/16] arm64: alternative: Mark .altinstr_replacement as containing executable instructions Raphael Gault
2019-05-16 10:36 ` [RFC 07/16] objtool: special: Adapt special section handling Raphael Gault
2019-05-16 10:36 ` [RFC 08/16] objtool: arm64: Adapt the stack frame checks for arm architecture Raphael Gault
2019-05-16 10:36 ` [RFC 09/16] arm64: assembler: Add macro to annotate asm function having non standard stack-frame Raphael Gault
2019-05-16 10:36 ` [RFC 10/16] arm64: sleep: Prevent stack frame warnings from objtool Raphael Gault
2019-05-16 10:36 ` [RFC 11/16] objtool: arm64: Enable stack validation for arm64 Raphael Gault
2019-05-16 10:36 ` [RFC 12/16] arm64: kvm: Annotate non-standard stack frame functions Raphael Gault
2019-05-16 10:36 ` [RFC 13/16] arm64: kernel: Add exception on kuser32 to prevent stack analysis Raphael Gault
2019-05-16 10:36 ` [RFC 14/16] arm64: crypto: Add exceptions for crypto object " Raphael Gault
2019-05-16 10:36 ` [RFC 15/16] objtool: Introduce INSN_UNKNOWN type Raphael Gault
2019-05-16 10:36 ` Raphael Gault [this message]
2019-05-16 14:29 ` [RFC V2 00/16] objtool: Add support for Arm64 Josh Poimboeuf
2019-05-21 12:50 ` Raphael Gault
2019-05-22 23:11 ` Josh Poimboeuf
2019-05-23 7:31 ` Raphael Gault
2019-05-23 7:59 ` Raphael Gault
2019-05-28 22:24 ` Josh Poimboeuf
2019-06-13 15:55 ` Raphael Gault
2019-06-13 16:09 ` Josh Poimboeuf
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