Sync-up Linux header to get latest KVM RISC-V headers having AIA support.

Note: This is a placeholder commit and could be replaced when all referenced Linux patchsets are mainlined.

The linux-headers changes are from 2 different patchsets.
[1] https://lore.kernel.org/lkml/20230404153452.2405681-1-apatel@ventanamicro.com/
[2] https://www.spinics.net/lists/kernel/msg4791872.html

Currently, patchset 1 is already merged into mainline kernel in v6.4-rc1 and patchset 2 is not.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Jim Shu <jim.shu@sifive.com>
---
 linux-headers/linux/kvm.h |  2 ++
 target/riscv/kvm_riscv.h  | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
index 599de3c6e3..a9a4f5791d 100644
--- a/linux-headers/linux/kvm.h
+++ b/linux-headers/linux/kvm.h
@@ -1434,6 +1434,8 @@ enum kvm_device_type {
 #define KVM_DEV_TYPE_XIVE		KVM_DEV_TYPE_XIVE
 	KVM_DEV_TYPE_ARM_PV_TIME,
 #define KVM_DEV_TYPE_ARM_PV_TIME	KVM_DEV_TYPE_ARM_PV_TIME
+	KVM_DEV_TYPE_RISCV_AIA,
+#define KVM_DEV_TYPE_RISCV_AIA		KVM_DEV_TYPE_RISCV_AIA
 	KVM_DEV_TYPE_MAX,
 };
 
diff --git a/target/riscv/kvm_riscv.h b/target/riscv/kvm_riscv.h
index ed281bdce0..606968a4b7 100644
--- a/target/riscv/kvm_riscv.h
+++ b/target/riscv/kvm_riscv.h
@@ -22,4 +22,37 @@
 void kvm_riscv_reset_vcpu(RISCVCPU *cpu);
 void kvm_riscv_set_irq(RISCVCPU *cpu, int irq, int level);
 
+#define KVM_DEV_RISCV_AIA_GRP_CONFIG            0
+#define KVM_DEV_RISCV_AIA_CONFIG_MODE           0
+#define KVM_DEV_RISCV_AIA_CONFIG_IDS            1
+#define KVM_DEV_RISCV_AIA_CONFIG_SRCS           2
+#define KVM_DEV_RISCV_AIA_CONFIG_GROUP_BITS     3
+#define KVM_DEV_RISCV_AIA_CONFIG_GROUP_SHIFT    4
+#define KVM_DEV_RISCV_AIA_CONFIG_HART_BITS      5
+#define KVM_DEV_RISCV_AIA_CONFIG_GUEST_BITS     6
+#define KVM_DEV_RISCV_AIA_MODE_EMUL             0
+#define KVM_DEV_RISCV_AIA_MODE_HWACCEL          1
+#define KVM_DEV_RISCV_AIA_MODE_AUTO             2
+#define KVM_DEV_RISCV_AIA_IDS_MIN               63
+#define KVM_DEV_RISCV_AIA_IDS_MAX               2048
+#define KVM_DEV_RISCV_AIA_SRCS_MAX              1024
+#define KVM_DEV_RISCV_AIA_GROUP_BITS_MAX        8
+#define KVM_DEV_RISCV_AIA_GROUP_SHIFT_MIN       24
+#define KVM_DEV_RISCV_AIA_GROUP_SHIFT_MAX       56
+#define KVM_DEV_RISCV_AIA_HART_BITS_MAX         16
+#define KVM_DEV_RISCV_AIA_GUEST_BITS_MAX        8
+
+#define KVM_DEV_RISCV_AIA_GRP_ADDR              1
+#define KVM_DEV_RISCV_AIA_ADDR_APLIC            0
+#define KVM_DEV_RISCV_AIA_ADDR_IMSIC(__vcpu)    (1 + (__vcpu))
+#define KVM_DEV_RISCV_AIA_ADDR_MAX              \
+        (1 + KVM_DEV_RISCV_APLIC_MAX_HARTS)
+
+#define KVM_DEV_RISCV_AIA_GRP_CTRL              2
+#define KVM_DEV_RISCV_AIA_CTRL_INIT             0
+
+#define KVM_DEV_RISCV_AIA_GRP_APLIC             3
+
+#define KVM_DEV_RISCV_AIA_GRP_IMSIC             4
+
 #endif
-- 
2.17.1