4.11 KVM_GET_REGS
Capability: basic
-Architectures: all except ARM
+Architectures: all except ARM, arm64
Type: vcpu ioctl
Parameters: struct kvm_regs (out)
Returns: 0 on success, -1 on error
4.12 KVM_SET_REGS
Capability: basic
-Architectures: all except ARM
+Architectures: all except ARM, arm64
Type: vcpu ioctl
Parameters: struct kvm_regs (in)
Returns: 0 on success, -1 on error
4.24 KVM_CREATE_IRQCHIP
Capability: KVM_CAP_IRQCHIP
-Architectures: x86, ia64, ARM
+Architectures: x86, ia64, ARM, arm64
Type: vm ioctl
Parameters: none
Returns: 0 on success, -1 on error
Creates an interrupt controller model in the kernel. On x86, creates a virtual
ioapic, a virtual PIC (two PICs, nested), and sets up future vcpus to have a
local APIC. IRQ routing for GSIs 0-15 is set to both PIC and IOAPIC; GSI 16-23
-only go to the IOAPIC. On ia64, a IOSAPIC is created. On ARM, a GIC is
+only go to the IOAPIC. On ia64, a IOSAPIC is created. On ARM/arm64, a GIC is
created.
4.25 KVM_IRQ_LINE
Capability: KVM_CAP_IRQCHIP
-Architectures: x86, ia64, arm
+Architectures: x86, ia64, arm, arm64
Type: vm ioctl
Parameters: struct kvm_irq_level
Returns: 0 on success, -1 on error
been previously created with KVM_CREATE_IRQCHIP. Note that edge-triggered
interrupts require the level to be set to 1 and then back to 0.
-ARM can signal an interrupt either at the CPU level, or at the in-kernel irqchip
-(GIC), and for in-kernel irqchip can tell the GIC to use PPIs designated for
-specific cpus. The irq field is interpreted like this:
+ARM/arm64 can signal an interrupt either at the CPU level, or at the
+in-kernel irqchip (GIC), and for in-kernel irqchip can tell the GIC to
+use PPIs designated for specific cpus. The irq field is interpreted
+like this:
bits: | 31 ... 24 | 23 ... 16 | 15 ... 0 |
field: | irq_type | vcpu_index | irq_id |
This ioctl maps the memory at "user_addr" with the length "length" to
the vcpu's address space starting at "vcpu_addr". All parameters need to
-be alligned by 1 megabyte.
+be aligned by 1 megabyte.
4.66 KVM_S390_UCAS_UNMAP
This ioctl unmaps the memory in the vcpu's address space starting at
"vcpu_addr" with the length "length". The field "user_addr" is ignored.
-All parameters need to be alligned by 1 megabyte.
+All parameters need to be aligned by 1 megabyte.
4.67 KVM_S390_VCPU_FAULT
ARM 64-bit FP registers have the following id bit patterns:
0x4030 0000 0012 0 <regno:12>
+
+arm64 registers are mapped using the lower 32 bits. The upper 16 of
+that is the register group type, or coprocessor number:
+
+arm64 core/FP-SIMD registers have the following id bit patterns. Note
+that the size of the access is variable, as the kvm_regs structure
+contains elements ranging from 32 to 128 bits. The index is a 32bit
+value in the kvm_regs structure seen as a 32bit array.
+ 0x60x0 0000 0010 <index into the kvm_regs struct:16>
+
+arm64 CCSIDR registers are demultiplexed by CSSELR value:
+ 0x6020 0000 0011 00 <csselr:8>
+
+arm64 system registers have the following id bit patterns:
+ 0x6030 0000 0013 <op0:2> <op1:3> <crn:4> <crm:4> <op2:3>
+
4.69 KVM_GET_ONE_REG
Capability: KVM_CAP_ONE_REG
This populates and returns a structure describing the features of
the "Server" class MMU emulation supported by KVM.
-This can in turn be used by userspace to generate the appropariate
+This can in turn be used by userspace to generate the appropriate
device-tree properties for the guest operating system.
The structure contains some global informations, followed by an
The "enc" array is a list which for each of those segment base page
size provides the list of supported actual page sizes (which can be
only larger or equal to the base page size), along with the
-corresponding encoding in the hash PTE. Similarily, the array is
+corresponding encoding in the hash PTE. Similarly, the array is
8 entries sorted by increasing sizes and an entry with a "0" shift
is an empty entry and a terminator:
indicate that the attribute can be read or written in the device's
current state. "addr" is ignored.
-4.77 KVM_ARM_VCPU_INIT
+4.82 KVM_ARM_VCPU_INIT
Capability: basic
-Architectures: arm
+Architectures: arm, arm64
Type: vcpu ioctl
Parameters: struct struct kvm_vcpu_init (in)
Returns: 0 on success; -1 on error
Possible features:
- KVM_ARM_VCPU_POWER_OFF: Starts the CPU in a power-off state.
Depends on KVM_CAP_ARM_PSCI.
+ - KVM_ARM_VCPU_EL1_32BIT: Starts the CPU in a 32bit mode.
+ Depends on KVM_CAP_ARM_EL1_32BIT (arm64 only).
-4.78 KVM_GET_REG_LIST
+4.83 KVM_GET_REG_LIST
Capability: basic
-Architectures: arm
+Architectures: arm, arm64
Type: vcpu ioctl
Parameters: struct kvm_reg_list (in/out)
Returns: 0 on success; -1 on error
KVM_GET_ONE_REG/KVM_SET_ONE_REG calls.
-4.80 KVM_ARM_SET_DEVICE_ADDR
+4.84 KVM_ARM_SET_DEVICE_ADDR
Capability: KVM_CAP_ARM_SET_DEVICE_ADDR
-Architectures: arm
+Architectures: arm, arm64
Type: vm ioctl
Parameters: struct kvm_arm_device_address (in)
Returns: 0 on success, -1 on error
to know about. The id field is an architecture specific identifier for a
specific device.
-ARM divides the id field into two parts, a device id and an address type id
-specific to the individual device.
+ARM/arm64 divides the id field into two parts, a device id and an
+address type id specific to the individual device.
bits: | 63 ... 32 | 31 ... 16 | 15 ... 0 |
field: | 0x00000000 | device id | addr type id |
-ARM currently only require this when using the in-kernel GIC support for the
-hardware VGIC features, using KVM_ARM_DEVICE_VGIC_V2 as the device id. When
-setting the base address for the guest's mapping of the VGIC virtual CPU
-and distributor interface, the ioctl must be called after calling
-KVM_CREATE_IRQCHIP, but before calling KVM_RUN on any of the VCPUs. Calling
-this ioctl twice for any of the base addresses will return -EEXIST.
+ARM/arm64 currently only require this when using the in-kernel GIC
+support for the hardware VGIC features, using KVM_ARM_DEVICE_VGIC_V2
+as the device id. When setting the base address for the guest's
+mapping of the VGIC virtual CPU and distributor interface, the ioctl
+must be called after calling KVM_CREATE_IRQCHIP, but before calling
+KVM_RUN on any of the VCPUs. Calling this ioctl twice for any of the
+base addresses will return -EEXIST.
-4.82 KVM_PPC_RTAS_DEFINE_TOKEN
+4.85 KVM_PPC_RTAS_DEFINE_TOKEN
Capability: KVM_CAP_PPC_RTAS
Architectures: ppc
projects / karo-tx-linux.git / blobdiff