[PATCH v2 05/39] arm64/sysreg: Add GICv5 GIC VDPEND and VDRCFG encodings

[Sascha Bischoff]

Add the encodings for the GIC VDPEND and GIC VDRCFG system
instructions. These operate on the virtual interrupt domain, and are
used to make interrupts pending for a VM and to read back the
configuration of a VM's interrupts.

This is part of enabling GICv5 KVM support, and is required for
injection of SPIs and LPIs, and querying the state of in-flight SPIs
to detect their deactivation.

Signed-off-by: Sascha Bischoff <sascha.bischoff at arm.com>
---
 arch/arm64/include/asm/sysreg.h | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 7aa08d59d4944..40ff7d25d37b0 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -1040,7 +1040,7 @@
 #define GCS_CAP(x)	((((unsigned long)x) & GCS_CAP_ADDR_MASK) | \
 					       GCS_CAP_VALID_TOKEN)
 /*
- * Definitions for GICv5 instructions
+ * Definitions for GICv5 instructions for the Current Domain
  */
 #define GICV5_OP_GIC_CDAFF		sys_insn(1, 0, 12, 1, 3)
 #define GICV5_OP_GIC_CDDI		sys_insn(1, 0, 12, 2, 0)
@@ -1105,6 +1105,22 @@
 #define GICV5_GICR_CDNMIA_TYPE_MASK	GENMASK_ULL(31, 29)
 #define GICV5_GICR_CDNMIA_ID_MASK	GENMASK_ULL(23, 0)
 
+/*
+ * Definitions for GICv5 instructions for the Virtual Domain
+ */
+#define GICV5_OP_GIC_VDPEND		sys_insn(1, 4, 12, 1, 4)
+#define GICV5_OP_GIC_VDRCFG		sys_insn(1, 4, 12, 1, 5)
+
+/* Shift and mask definitions for GIC VDPEND */
+#define GICV5_GIC_VDPEND_PENDING_MASK	BIT_ULL(63)
+#define GICV5_GIC_VDPEND_VM_MASK	GENMASK_ULL(47, 32)
+#define GICV5_GIC_VDPEND_TYPE_MASK	GENMASK_ULL(31, 29)
+#define GICV5_GIC_VDPEND_ID_MASK	GENMASK_ULL(23, 0)
+
+/* Shift and mask definitions for GIC VDRCFG */
+#define GICV5_GIC_VDRCFG_TYPE_MASK	GENMASK_ULL(31, 29)
+#define GICV5_GIC_VDRCFG_ID_MASK	GENMASK_ULL(23, 0)
+
 #define gicr_insn(insn)			read_sysreg_s(GICV5_OP_GICR_##insn)
 #define gic_insn(v, insn)		write_sysreg_s(v, GICV5_OP_GIC_##insn)
 
-- 
2.34.1