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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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The pKVM lifecycle does not support tearing down the hypervisor and returning to the hyp stub once initialized. The transition to protected mode is one-way. Consequently, the code path in hyp-init.S responsible for resetting EL2 registers (triggered by kexec or hibernation) is unreachable in protected mode. Remove the dead code handling HCR_EL2 reset for ARM64_KVM_PROTECTED_MODE. No functional change intended. Signed-off-by: Fuad Tabba --- arch/arm64/kvm/hyp/nvhe/hyp-init.S | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-init.S b/arch/arm64/kvm/hyp/nvhe/hyp-init.S index aada42522e7b..0d42eedc7167 100644 --- a/arch/arm64/kvm/hyp/nvhe/hyp-init.S +++ b/arch/arm64/kvm/hyp/nvhe/hyp-init.S @@ -260,11 +260,6 @@ reset: msr sctlr_el2, x5 isb -alternative_if ARM64_KVM_PROTECTED_MODE - mov_q x5, HCR_HOST_NVHE_FLAGS - msr_hcr_el2 x5 -alternative_else_nop_endif - /* Install stub vectors */ adr_l x5, __hyp_stub_vectors msr vbar_el2, x5 -- 2.52.0.487.g5c8c507ade-goog