Merge tag 'trace-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...

[karo-tx-linux.git] / virt / kvm / arm / vgic / vgic.h

diff --git a/virt/kvm/arm/vgic/vgic.h b/virt/kvm/arm/vgic/vgic.h
index 859f65c6e056b0e043e283f19f69f9affc3034fb..db28f7cadab28b5859ce58dcd35eb36b6632e60f 100644 (file)
--- a/virt/kvm/arm/vgic/vgic.h
+++ b/virt/kvm/arm/vgic/vgic.h
@@ -30,13 +30,79 @@
 
 #define vgic_irq_is_sgi(intid) ((intid) < VGIC_NR_SGIS)
 
+#define VGIC_AFFINITY_0_SHIFT 0
+#define VGIC_AFFINITY_0_MASK (0xffUL << VGIC_AFFINITY_0_SHIFT)
+#define VGIC_AFFINITY_1_SHIFT 8
+#define VGIC_AFFINITY_1_MASK (0xffUL << VGIC_AFFINITY_1_SHIFT)
+#define VGIC_AFFINITY_2_SHIFT 16
+#define VGIC_AFFINITY_2_MASK (0xffUL << VGIC_AFFINITY_2_SHIFT)
+#define VGIC_AFFINITY_3_SHIFT 24
+#define VGIC_AFFINITY_3_MASK (0xffUL << VGIC_AFFINITY_3_SHIFT)
+
+#define VGIC_AFFINITY_LEVEL(reg, level) \
+       ((((reg) & VGIC_AFFINITY_## level ##_MASK) \
+       >> VGIC_AFFINITY_## level ##_SHIFT) << MPIDR_LEVEL_SHIFT(level))
+
+/*
+ * The Userspace encodes the affinity differently from the MPIDR,
+ * Below macro converts vgic userspace format to MPIDR reg format.
+ */
+#define VGIC_TO_MPIDR(val) (VGIC_AFFINITY_LEVEL(val, 0) | \
+                           VGIC_AFFINITY_LEVEL(val, 1) | \
+                           VGIC_AFFINITY_LEVEL(val, 2) | \
+                           VGIC_AFFINITY_LEVEL(val, 3))
+
+/*
+ * As per Documentation/virtual/kvm/devices/arm-vgic-v3.txt,
+ * below macros are defined for CPUREG encoding.
+ */
+#define KVM_REG_ARM_VGIC_SYSREG_OP0_MASK   0x000000000000c000
+#define KVM_REG_ARM_VGIC_SYSREG_OP0_SHIFT  14
+#define KVM_REG_ARM_VGIC_SYSREG_OP1_MASK   0x0000000000003800
+#define KVM_REG_ARM_VGIC_SYSREG_OP1_SHIFT  11
+#define KVM_REG_ARM_VGIC_SYSREG_CRN_MASK   0x0000000000000780
+#define KVM_REG_ARM_VGIC_SYSREG_CRN_SHIFT  7
+#define KVM_REG_ARM_VGIC_SYSREG_CRM_MASK   0x0000000000000078
+#define KVM_REG_ARM_VGIC_SYSREG_CRM_SHIFT  3
+#define KVM_REG_ARM_VGIC_SYSREG_OP2_MASK   0x0000000000000007
+#define KVM_REG_ARM_VGIC_SYSREG_OP2_SHIFT  0
+
+#define KVM_DEV_ARM_VGIC_SYSREG_MASK (KVM_REG_ARM_VGIC_SYSREG_OP0_MASK | \
+                                     KVM_REG_ARM_VGIC_SYSREG_OP1_MASK | \
+                                     KVM_REG_ARM_VGIC_SYSREG_CRN_MASK | \
+                                     KVM_REG_ARM_VGIC_SYSREG_CRM_MASK | \
+                                     KVM_REG_ARM_VGIC_SYSREG_OP2_MASK)
+
+static inline bool irq_is_pending(struct vgic_irq *irq)
+{
+       if (irq->config == VGIC_CONFIG_EDGE)
+               return irq->pending_latch;
+       else
+               return irq->pending_latch || irq->line_level;
+}
+
 struct vgic_vmcr {
        u32     ctlr;
        u32     abpr;
        u32     bpr;
        u32     pmr;
+       /* Below member variable are valid only for GICv3 */
+       u32     grpen0;
+       u32     grpen1;
+};
+
+struct vgic_reg_attr {
+       struct kvm_vcpu *vcpu;
+       gpa_t addr;
 };
 
+int vgic_v3_parse_attr(struct kvm_device *dev, struct kvm_device_attr *attr,
+                      struct vgic_reg_attr *reg_attr);
+int vgic_v2_parse_attr(struct kvm_device *dev, struct kvm_device_attr *attr,
+                      struct vgic_reg_attr *reg_attr);
+const struct vgic_register_region *
+vgic_get_mmio_region(struct kvm_vcpu *vcpu, struct vgic_io_device *iodev,
+                    gpa_t addr, int len);
 struct vgic_irq *vgic_get_irq(struct kvm *kvm, struct kvm_vcpu *vcpu,
                              u32 intid);
 void vgic_put_irq(struct kvm *kvm, struct vgic_irq *irq);
@@ -89,9 +155,24 @@ bool vgic_has_its(struct kvm *kvm);
 int kvm_vgic_register_its_device(void);
 void vgic_enable_lpis(struct kvm_vcpu *vcpu);
 int vgic_its_inject_msi(struct kvm *kvm, struct kvm_msi *msi);
-
+int vgic_v3_has_attr_regs(struct kvm_device *dev, struct kvm_device_attr *attr);
+int vgic_v3_dist_uaccess(struct kvm_vcpu *vcpu, bool is_write,
+                        int offset, u32 *val);
+int vgic_v3_redist_uaccess(struct kvm_vcpu *vcpu, bool is_write,
+                        int offset, u32 *val);
+int vgic_v3_cpu_sysregs_uaccess(struct kvm_vcpu *vcpu, bool is_write,
+                        u64 id, u64 *val);
+int vgic_v3_has_cpu_sysregs_attr(struct kvm_vcpu *vcpu, bool is_write, u64 id,
+                               u64 *reg);
+int vgic_v3_line_level_info_uaccess(struct kvm_vcpu *vcpu, bool is_write,
+                                   u32 intid, u64 *val);
 int kvm_register_vgic_device(unsigned long type);
+void vgic_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr);
+void vgic_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr);
 int vgic_lazy_init(struct kvm *kvm);
 int vgic_init(struct kvm *kvm);
 
+int vgic_debug_init(struct kvm *kvm);
+int vgic_debug_destroy(struct kvm *kvm);
+
 #endif