From: Fuad Tabba Date: Thu, 7 Aug 2025 12:01:33 +0000 (+0100) Subject: arm64: vgic-v2: Fix guest endianness check in hVHE mode X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=f1edb159200ad1ef2fc518c7673cb9559a6f8edd;p=users%2Fjedix%2Flinux-maple.git arm64: vgic-v2: Fix guest endianness check in hVHE mode In hVHE when running at the hypervisor, SCTLR_EL1 refers to the hypervisor's System Control Register rather than the guest's. Make sure to access the guest's register to determine its endianness. Reported-by: Will Deacon Signed-off-by: Fuad Tabba Link: https://lore.kernel.org/r/20250807120133.871892-4-tabba@google.com Signed-off-by: Oliver Upton --- diff --git a/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c b/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c index 87a54375bd6ed..78579b31a4205 100644 --- a/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c +++ b/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c @@ -20,7 +20,7 @@ static bool __is_be(struct kvm_vcpu *vcpu) if (vcpu_mode_is_32bit(vcpu)) return !!(read_sysreg_el2(SYS_SPSR) & PSR_AA32_E_BIT); - return !!(read_sysreg(SCTLR_EL1) & SCTLR_ELx_EE); + return !!(read_sysreg_el1(SYS_SCTLR) & SCTLR_ELx_EE); } /*