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[73.69.118.222]) by smtp.gmail.com with ESMTPSA id 207sm18177874qkl.125.2021.04.07.21.05.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Apr 2021 21:05:41 -0700 (PDT) From: Pavel Tatashin 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, linux-mm@kvack.org, mark.rutland@arm.com, steve.capper@arm.com, rfontana@redhat.com, tglx@linutronix.de, selindag@gmail.com, tyhicks@linux.microsoft.com, kernelfans@gmail.com Subject: [PATCH v13 02/18] arm64: hyp-stub: Move invalid vector entries into the vectors Date: Thu, 8 Apr 2021 00:05:21 -0400 Message-Id: <20210408040537.2703241-3-pasha.tatashin@soleen.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210408040537.2703241-1-pasha.tatashin@soleen.com> References: <20210408040537.2703241-1-pasha.tatashin@soleen.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210408_050543_209494_C83909FA X-CRM114-Status: GOOD ( 11.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: James Morse Most of the hyp-stub's vector entries are invalid. These are each a unique function that branches to itself. To move these into the vectors, merge the ventry and invalid_vector macros and give each one a unique name. This means we can copy the hyp-stub as it is self contained within its vectors. Signed-off-by: James Morse [Fixed merging issues] Signed-off-by: Pavel Tatashin --- arch/arm64/kernel/hyp-stub.S | 56 +++++++++++++++--------------------- 1 file changed, 23 insertions(+), 33 deletions(-) diff --git a/arch/arm64/kernel/hyp-stub.S b/arch/arm64/kernel/hyp-stub.S index 572b28646005..ff329c5c074d 100644 --- a/arch/arm64/kernel/hyp-stub.S +++ b/arch/arm64/kernel/hyp-stub.S @@ -16,31 +16,38 @@ #include #include +.macro invalid_vector label +SYM_CODE_START_LOCAL(\label) + .align 7 + b \label +SYM_CODE_END(\label) +.endm + .text .pushsection .hyp.text, "ax" .align 11 SYM_CODE_START(__hyp_stub_vectors) - ventry el2_sync_invalid // Synchronous EL2t - ventry el2_irq_invalid // IRQ EL2t - ventry el2_fiq_invalid // FIQ EL2t - ventry el2_error_invalid // Error EL2t + invalid_vector hyp_stub_el2t_sync_invalid // Synchronous EL2t + invalid_vector hyp_stub_el2t_irq_invalid // IRQ EL2t + invalid_vector hyp_stub_el2t_fiq_invalid // FIQ EL2t + invalid_vector hyp_stub_el2t_error_invalid // Error EL2t - ventry el2_sync_invalid // Synchronous EL2h - ventry el2_irq_invalid // IRQ EL2h - ventry el2_fiq_invalid // FIQ EL2h - ventry el2_error_invalid // Error EL2h + invalid_vector hyp_stub_el2h_sync_invalid // Synchronous EL2h + invalid_vector hyp_stub_el2h_irq_invalid // IRQ EL2h + invalid_vector hyp_stub_el2h_fiq_invalid // FIQ EL2h + invalid_vector hyp_stub_el2h_error_invalid // Error EL2h ventry el1_sync // Synchronous 64-bit EL1 - ventry el1_irq_invalid // IRQ 64-bit EL1 - ventry el1_fiq_invalid // FIQ 64-bit EL1 - ventry el1_error_invalid // Error 64-bit EL1 - - ventry el1_sync_invalid // Synchronous 32-bit EL1 - ventry el1_irq_invalid // IRQ 32-bit EL1 - ventry el1_fiq_invalid // FIQ 32-bit EL1 - ventry el1_error_invalid // Error 32-bit EL1 + invalid_vector hyp_stub_el1_irq_invalid // IRQ 64-bit EL1 + invalid_vector hyp_stub_el1_fiq_invalid // FIQ 64-bit EL1 + invalid_vector hyp_stub_el1_error_invalid // Error 64-bit EL1 + + invalid_vector hyp_stub_32b_el1_sync_invalid // Synchronous 32-bit EL1 + invalid_vector hyp_stub_32b_el1_irq_invalid // IRQ 32-bit EL1 + invalid_vector hyp_stub_32b_el1_fiq_invalid // FIQ 32-bit EL1 + invalid_vector hyp_stub_32b_el1_error_invalid // Error 32-bit EL1 .align 11 SYM_INNER_LABEL(__hyp_stub_vectors_end, SYM_L_LOCAL) SYM_CODE_END(__hyp_stub_vectors) @@ -173,23 +180,6 @@ SYM_CODE_END(enter_vhe) .popsection -.macro invalid_vector label -SYM_CODE_START_LOCAL(\label) - b \label -SYM_CODE_END(\label) -.endm - - invalid_vector el2_sync_invalid - invalid_vector el2_irq_invalid - invalid_vector el2_fiq_invalid - invalid_vector el2_error_invalid - invalid_vector el1_sync_invalid - invalid_vector el1_irq_invalid - invalid_vector el1_fiq_invalid - invalid_vector el1_error_invalid - - .popsection - /* * __hyp_set_vectors: Call this after boot to set the initial hypervisor * vectors as part of hypervisor installation. On an SMP system, this should -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel