diff options
Diffstat (limited to 'arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c')
| -rw-r--r-- | arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c b/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c index 9cbdd034a563..5fd99763b54d 100644 --- a/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c +++ b/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c @@ -1,20 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2012-2015 - ARM Ltd * Author: Marc Zyngier <marc.zyngier@arm.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <hyp/adjust_pc.h> + #include <linux/compiler.h> #include <linux/irqchip/arm-gic.h> #include <linux/kvm_host.h> @@ -24,12 +15,12 @@ #include <asm/kvm_hyp.h> #include <asm/kvm_mmu.h> -static bool __hyp_text __is_be(struct kvm_vcpu *vcpu) +static bool __is_be(struct kvm_vcpu *vcpu) { if (vcpu_mode_is_32bit(vcpu)) - return !!(read_sysreg_el2(spsr) & PSR_AA32_E_BIT); + 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); } /* @@ -43,7 +34,7 @@ static bool __hyp_text __is_be(struct kvm_vcpu *vcpu) * 0: Not a GICV access * -1: Illegal GICV access successfully performed */ -int __hyp_text __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu) +int __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu) { struct kvm *kvm = kern_hyp_va(vcpu->kvm); struct vgic_dist *vgic = &kvm->arch.vgic; @@ -72,22 +63,26 @@ int __hyp_text __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu) return -1; } + /* Handle deactivation as a normal exit */ + if ((fault_ipa - vgic->vgic_cpu_base) >= GIC_CPU_DEACTIVATE) + return 0; + rd = kvm_vcpu_dabt_get_rd(vcpu); - addr = hyp_symbol_addr(kvm_vgic_global_state)->vcpu_hyp_va; + addr = kvm_vgic_global_state.vcpu_hyp_va; addr += fault_ipa - vgic->vgic_cpu_base; if (kvm_vcpu_dabt_iswrite(vcpu)) { u32 data = vcpu_get_reg(vcpu, rd); if (__is_be(vcpu)) { /* guest pre-swabbed data, undo this for writel() */ - data = swab32(data); + data = __kvm_swab32(data); } writel_relaxed(data, addr); } else { u32 data = readl_relaxed(addr); if (__is_be(vcpu)) { /* guest expects swabbed data */ - data = swab32(data); + data = __kvm_swab32(data); } vcpu_set_reg(vcpu, rd, data); } |