Merge branch kvm-arm64/vgic-v5-ppi into kvmarm-master/next

* kvm-arm64/vgic-v5-ppi: (40 commits)
  : .
  : Add initial GICv5 support for KVM guests, only adding PPI support
  : for the time being. Patches courtesy of Sascha Bischoff.
  :
  : From the cover letter:
  :
  : "This is v7 of the patch series to add the virtual GICv5 [1] device
  : (vgic_v5). Only PPIs are supported by this initial series, and the
  : vgic_v5 implementation is restricted to the CPU interface,
  : only. Further patch series are to follow in due course, and will add
  : support for SPIs, LPIs, the GICv5 IRS, and the GICv5 ITS."
  : .
  KVM: arm64: selftests: Add no-vgic-v5 selftest
  KVM: arm64: selftests: Introduce a minimal GICv5 PPI selftest
  KVM: arm64: gic-v5: Communicate userspace-driveable PPIs via a UAPI
  Documentation: KVM: Introduce documentation for VGICv5
  KVM: arm64: gic-v5: Probe for GICv5 device
  KVM: arm64: gic-v5: Set ICH_VCTLR_EL2.En on boot
  KVM: arm64: gic-v5: Introduce kvm_arm_vgic_v5_ops and register them
  KVM: arm64: gic-v5: Hide FEAT_GCIE from NV GICv5 guests
  KVM: arm64: gic: Hide GICv5 for protected guests
  KVM: arm64: gic-v5: Mandate architected PPI for PMU emulation on GICv5
  KVM: arm64: gic-v5: Enlighten arch timer for GICv5
  irqchip/gic-v5: Introduce minimal irq_set_type() for PPIs
  KVM: arm64: gic-v5: Initialise ID and priority bits when resetting vcpu
  KVM: arm64: gic-v5: Create and initialise vgic_v5
  KVM: arm64: gic-v5: Support GICv5 interrupts with KVM_IRQ_LINE
  KVM: arm64: gic-v5: Implement direct injection of PPIs
  KVM: arm64: Introduce set_direct_injection irq_op
  KVM: arm64: gic-v5: Trap and mask guest ICC_PPI_ENABLERx_EL1 writes
  KVM: arm64: gic-v5: Check for pending PPIs
  KVM: arm64: gic-v5: Clear TWI if single task running
  ...

Signed-off-by: Marc Zyngier <maz@kernel.org>

2 files changed, 28 insertions, 0 deletions

diff --git a/include/linux/irqchip/arm-gic-v5.h b/include/linux/irqchip/arm-gic-v5.h
index b78488df6c98..40d2fce68294 100644
--- a/include/linux/irqchip/arm-gic-v5.h
+++ b/include/linux/irqchip/arm-gic-v5.h
@@ -25,6 +25,28 @@
 #define GICV5_HWIRQ_TYPE_SPI		UL(0x3)
 
 /*
+ * Architected PPIs
+ */
+#define GICV5_ARCH_PPI_S_DB_PPI		0x0
+#define GICV5_ARCH_PPI_RL_DB_PPI	0x1
+#define GICV5_ARCH_PPI_NS_DB_PPI	0x2
+#define GICV5_ARCH_PPI_SW_PPI		0x3
+#define GICV5_ARCH_PPI_HACDBSIRQ	0xf
+#define GICV5_ARCH_PPI_CNTHVS		0x13
+#define GICV5_ARCH_PPI_CNTHPS		0x14
+#define GICV5_ARCH_PPI_PMBIRQ		0x15
+#define GICV5_ARCH_PPI_COMMIRQ		0x16
+#define GICV5_ARCH_PPI_PMUIRQ		0x17
+#define GICV5_ARCH_PPI_CTIIRQ		0x18
+#define GICV5_ARCH_PPI_GICMNT		0x19
+#define GICV5_ARCH_PPI_CNTHP		0x1a
+#define GICV5_ARCH_PPI_CNTV		0x1b
+#define GICV5_ARCH_PPI_CNTHV		0x1c
+#define GICV5_ARCH_PPI_CNTPS		0x1d
+#define GICV5_ARCH_PPI_CNTP		0x1e
+#define GICV5_ARCH_PPI_TRBIRQ		0x1f
+
+/*
  * Tables attributes
  */
 #define GICV5_NO_READ_ALLOC		0b0
@@ -365,6 +387,11 @@ int gicv5_spi_irq_set_type(struct irq_data *d, unsigned int type);
 int gicv5_irs_iste_alloc(u32 lpi);
 void gicv5_irs_syncr(void);
 
+/* Embedded in kvm.arch */
+struct gicv5_vpe {
+	bool			resident;
+};
+
 struct gicv5_its_devtab_cfg {
 	union {
 		struct {
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 6b76e7a6f4c2..779d9ed85cbf 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -2366,6 +2366,7 @@ void kvm_unregister_device_ops(u32 type);
 extern struct kvm_device_ops kvm_mpic_ops;
 extern struct kvm_device_ops kvm_arm_vgic_v2_ops;
 extern struct kvm_device_ops kvm_arm_vgic_v3_ops;
+extern struct kvm_device_ops kvm_arm_vgic_v5_ops;
 
 #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT