/* Sun4v hypervisor interfaces and defines. * * Hypervisor calls are made via traps to software traps number 0x80 * and above. Registers %o0 to %o5 serve as argument, status, and * return value registers. * * There are two kinds of these traps. First there are the normal * "fast traps" which use software trap 0x80 and encode the function * to invoke by number in register %o5. Argument and return value * handling is as follows: * * ----------------------------------------------- * | %o5 | function number | undefined | * | %o0 | argument 0 | return status | * | %o1 | argument 1 | return value 1 | * | %o2 | argument 2 | return value 2 | * | %o3 | argument 3 | return value 3 | * | %o4 | argument 4 | return value 4 | * ----------------------------------------------- * * The second type are "hyper-fast traps" which encode the function * number in the software trap number itself. So these use trap * numbers > 0x80. The register usage for hyper-fast traps is as * follows: * * ----------------------------------------------- * | %o0 | argument 0 | return status | * | %o1 | argument 1 | return value 1 | * | %o2 | argument 2 | return value 2 | * | %o3 | argument 3 | return value 3 | * | %o4 | argument 4 | return value 4 | * ----------------------------------------------- * * Registers providing explicit arguments to the hypervisor calls * are volatile across the call. Upon return their values are * undefined unless explicitly specified as containing a particular * return value by the specific call. The return status is always * returned in register %o0, zero indicates a successful execution of * the hypervisor call and other values indicate an error status as * defined below. So, for example, if a hyper-fast trap takes * arguments 0, 1, and 2, then %o0, %o1, and %o2 are volatile across * the call and %o3, %o4, and %o5 would be preserved. * * If the hypervisor trap is invalid, or the fast trap function number * is invalid, HV_EBADTRAP will be returned in %o0. Also, all 64-bits * of the argument and return values are significant.
*/
/* Error codes. */ #define HV_EOK 0 /* Successful return */ #define HV_ENOCPU 1 /* Invalid CPU id */ #define HV_ENORADDR 2 /* Invalid real address */ #define HV_ENOINTR 3 /* Invalid interrupt id */ #define HV_EBADPGSZ 4 /* Invalid pagesize encoding */ #define HV_EBADTSB 5 /* Invalid TSB description */ #define HV_EINVAL 6 /* Invalid argument */ #define HV_EBADTRAP 7 /* Invalid function number */ #define HV_EBADALIGN 8 /* Invalid address alignment */ #define HV_EWOULDBLOCK 9 /* Cannot complete w/o blocking */ #define HV_ENOACCESS 10 /* No access to resource */ #define HV_EIO 11 /* I/O error */ #define HV_ECPUERROR 12 /* CPU in error state */ #define HV_ENOTSUPPORTED 13 /* Function not supported */ #define HV_ENOMAP 14 /* No mapping found */ #define HV_ETOOMANY 15 /* Too many items specified */ #define HV_ECHANNEL 16 /* Invalid LDC channel */ #define HV_EBUSY 17 /* Resource busy */ #define HV_EUNAVAILABLE 23 /* Resource or operation not * currently available, but may * become available in the future
*/
/* mach_exit() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MACH_EXIT * ARG0: exit code * ERRORS: This service does not return. * * Stop all CPUs in the virtual domain and place them into the stopped * state. The 64-bit exit code may be passed to a service entity as * the domain's exit status. On systems without a service entity, the * domain will undergo a reset, and the boot firmware will be * reloaded. * * This function will never return to the guest that invokes it. * * Note: By convention an exit code of zero denotes a successful exit by * the guest code. A non-zero exit code denotes a guest specific * error indication. *
*/ #define HV_FAST_MACH_EXIT 0x00
/* mach_desc() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MACH_DESC * ARG0: buffer * ARG1: length * RET0: status * RET1: length * ERRORS: HV_EBADALIGN Buffer is badly aligned * HV_ENORADDR Buffer is to an illegal real address. * HV_EINVAL Buffer length is too small for complete * machine description. * * Copy the most current machine description into the buffer indicated * by the real address in ARG0. The buffer provided must be 16 byte * aligned. Upon success or HV_EINVAL, this service returns the * actual size of the machine description in the RET1 return value. * * Note: A method of determining the appropriate buffer size for the * machine description is to first call this service with a buffer * length of 0 bytes.
*/ #define HV_FAST_MACH_DESC 0x01
/* mach_sir() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MACH_SIR * ERRORS: This service does not return. * * Perform a software initiated reset of the virtual machine domain. * All CPUs are captured as soon as possible, all hardware devices are * returned to the entry default state, and the domain is restarted at * the SIR (trap type 0x04) real trap table (RTBA) entry point on one * of the CPUs. The single CPU restarted is selected as determined by * platform specific policy. Memory is preserved across this * operation.
*/ #define HV_FAST_MACH_SIR 0x02
/* mach_set_watchdog() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MACH_SET_WATCHDOG * ARG0: timeout in milliseconds * RET0: status * RET1: time remaining in milliseconds * * A guest uses this API to set a watchdog timer. Once the gues has set * the timer, it must call the timer service again either to disable or * postpone the expiration. If the timer expires before being reset or * disabled, then the hypervisor take a platform specific action leading * to guest termination within a bounded time period. The platform action * may include recovery actions such as reporting the expiration to a * Service Processor, and/or automatically restarting the gues. * * The 'timeout' parameter is specified in milliseconds, however the * implementated granularity is given by the 'watchdog-resolution' * property in the 'platform' node of the guest's machine description. * The largest allowed timeout value is specified by the * 'watchdog-max-timeout' property of the 'platform' node. * * If the 'timeout' argument is not zero, the watchdog timer is set to * expire after a minimum of 'timeout' milliseconds. * * If the 'timeout' argument is zero, the watchdog timer is disabled. * * If the 'timeout' value exceeds the value of the 'max-watchdog-timeout' * property, the hypervisor leaves the watchdog timer state unchanged, * and returns a status of EINVAL. * * The 'time remaining' return value is valid regardless of whether the * return status is EOK or EINVAL. A non-zero return value indicates the * number of milliseconds that were remaining until the timer was to expire. * If less than one millisecond remains, the return value is '1'. If the * watchdog timer was disabled at the time of the call, the return value is * zero. * * If the hypervisor cannot support the exact timeout value requested, but * can support a larger timeout value, the hypervisor may round the actual * timeout to a value larger than the requested timeout, consequently the * 'time remaining' return value may be larger than the previously requested * timeout value. * * Any guest OS debugger should be aware that the watchdog service may be in * use. Consequently, it is recommended that the watchdog service is * disabled upon debugger entry (e.g. reaching a breakpoint), and then * re-enabled upon returning to normal execution. The API has been designed * with this in mind, and the 'time remaining' result of the disable call may * be used directly as the timeout argument of the re-enable call.
*/ #define HV_FAST_MACH_SET_WATCHDOG 0x05
/* CPU services. * * CPUs represent devices that can execute software threads. A single * chip that contains multiple cores or strands is represented as * multiple CPUs with unique CPU identifiers. CPUs are exported to * OBP via the machine description (and to the OS via the OBP device * tree). CPUs are always in one of three states: stopped, running, * or error. * * A CPU ID is a pre-assigned 16-bit value that uniquely identifies a * CPU within a logical domain. Operations that are to be performed * on multiple CPUs specify them via a CPU list. A CPU list is an * array in real memory, of which each 16-bit word is a CPU ID. CPU * lists are passed through the API as two arguments. The first is * the number of entries (16-bit words) in the CPU list, and the * second is the (real address) pointer to the CPU ID list.
*/
/* cpu_start() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CPU_START * ARG0: CPU ID * ARG1: PC * ARG2: RTBA * ARG3: target ARG0 * RET0: status * ERRORS: ENOCPU Invalid CPU ID * EINVAL Target CPU ID is not in the stopped state * ENORADDR Invalid PC or RTBA real address * EBADALIGN Unaligned PC or unaligned RTBA * EWOULDBLOCK Starting resources are not available * * Start CPU with given CPU ID with PC in %pc and with a real trap * base address value of RTBA. The indicated CPU must be in the * stopped state. The supplied RTBA must be aligned on a 256 byte * boundary. On successful completion, the specified CPU will be in * the running state and will be supplied with "target ARG0" in %o0 * and RTBA in %tba.
*/ #define HV_FAST_CPU_START 0x10
/* cpu_stop() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CPU_STOP * ARG0: CPU ID * RET0: status * ERRORS: ENOCPU Invalid CPU ID * EINVAL Target CPU ID is the current cpu * EINVAL Target CPU ID is not in the running state * EWOULDBLOCK Stopping resources are not available * ENOTSUPPORTED Not supported on this platform * * The specified CPU is stopped. The indicated CPU must be in the * running state. On completion, it will be in the stopped state. It * is not legal to stop the current CPU. * * Note: As this service cannot be used to stop the current cpu, this service * may not be used to stop the last running CPU in a domain. To stop * and exit a running domain, a guest must use the mach_exit() service.
*/ #define HV_FAST_CPU_STOP 0x11
/* cpu_yield() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CPU_YIELD * RET0: status * ERRORS: No possible error. * * Suspend execution on the current CPU. Execution will resume when * an interrupt (device, %stick_compare, or cross-call) is targeted to * the CPU. On some CPUs, this API may be used by the hypervisor to * save power by disabling hardware strands.
*/ #define HV_FAST_CPU_YIELD 0x12
/* cpu_poke() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CPU_POKE * RET0: status * ERRORS: ENOCPU cpuid refers to a CPU that does not exist * EINVAL cpuid is current CPU * * Poke CPU cpuid. If the target CPU is currently suspended having * invoked the cpu-yield service, that vCPU will be resumed. * Poke interrupts may only be sent to valid, non-local CPUs. * It is not legal to poke the current vCPU.
*/ #define HV_FAST_CPU_POKE 0x13
/* cpu_qconf() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CPU_QCONF * ARG0: queue * ARG1: base real address * ARG2: number of entries * RET0: status * ERRORS: ENORADDR Invalid base real address * EINVAL Invalid queue or number of entries is less * than 2 or too large. * EBADALIGN Base real address is not correctly aligned * for size. * * Configure the given queue to be placed at the given base real * address, with the given number of entries. The number of entries * must be a power of 2. The base real address must be aligned * exactly to match the queue size. Each queue entry is 64 bytes * long, so for example a 32 entry queue must be aligned on a 2048 * byte real address boundary. * * The specified queue is unconfigured if the number of entries is given * as zero. * * For the current version of this API service, the argument queue is defined * as follows: * * queue description * ----- ------------------------- * 0x3c cpu mondo queue * 0x3d device mondo queue * 0x3e resumable error queue * 0x3f non-resumable error queue * * Note: The maximum number of entries for each queue for a specific cpu may * be determined from the machine description.
*/ #define HV_FAST_CPU_QCONF 0x14 #define HV_CPU_QUEUE_CPU_MONDO 0x3c #define HV_CPU_QUEUE_DEVICE_MONDO 0x3d #define HV_CPU_QUEUE_RES_ERROR 0x3e #define HV_CPU_QUEUE_NONRES_ERROR 0x3f
/* cpu_qinfo() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CPU_QINFO * ARG0: queue * RET0: status * RET1: base real address * RET1: number of entries * ERRORS: EINVAL Invalid queue * * Return the configuration info for the given queue. The base real * address and number of entries of the defined queue are returned. * The queue argument values are the same as for cpu_qconf() above. * * If the specified queue is a valid queue number, but no queue has * been defined, the number of entries will be set to zero and the * base real address returned is undefined.
*/ #define HV_FAST_CPU_QINFO 0x15
/* cpu_mondo_send() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CPU_MONDO_SEND * ARG0-1: CPU list * ARG2: data real address * RET0: status * ERRORS: EBADALIGN Mondo data is not 64-byte aligned or CPU list * is not 2-byte aligned. * ENORADDR Invalid data mondo address, or invalid cpu list * address. * ENOCPU Invalid cpu in CPU list * EWOULDBLOCK Some or all of the listed CPUs did not receive * the mondo * ECPUERROR One or more of the listed CPUs are in error * state, use HV_FAST_CPU_STATE to see which ones * EINVAL CPU list includes caller's CPU ID * * Send a mondo interrupt to the CPUs in the given CPU list with the * 64-bytes at the given data real address. The data must be 64-byte * aligned. The mondo data will be delivered to the cpu_mondo queues * of the recipient CPUs. * * In all cases, error or not, the CPUs in the CPU list to which the * mondo has been successfully delivered will be indicated by having * their entry in CPU list updated with the value 0xffff.
*/ #define HV_FAST_CPU_MONDO_SEND 0x42
/* cpu_myid() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CPU_MYID * RET0: status * RET1: CPU ID * ERRORS: No errors defined. * * Return the hypervisor ID handle for the current CPU. Use by a * virtual CPU to discover its own identity.
*/ #define HV_FAST_CPU_MYID 0x16
/* cpu_state() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CPU_STATE * ARG0: CPU ID * RET0: status * RET1: state * ERRORS: ENOCPU Invalid CPU ID * * Retrieve the current state of the CPU with the given CPU ID.
*/ #define HV_FAST_CPU_STATE 0x17 #define HV_CPU_STATE_STOPPED 0x01 #define HV_CPU_STATE_RUNNING 0x02 #define HV_CPU_STATE_ERROR 0x03
#ifndef __ASSEMBLY__ long sun4v_cpu_state(unsignedlong cpuid); #endif
/* cpu_set_rtba() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CPU_SET_RTBA * ARG0: RTBA * RET0: status * RET1: previous RTBA * ERRORS: ENORADDR Invalid RTBA real address * EBADALIGN RTBA is incorrectly aligned for a trap table * * Set the real trap base address of the local cpu to the given RTBA. * The supplied RTBA must be aligned on a 256 byte boundary. Upon * success the previous value of the RTBA is returned in RET1. * * Note: This service does not affect %tba
*/ #define HV_FAST_CPU_SET_RTBA 0x18
/* cpu_set_rtba() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CPU_GET_RTBA * RET0: status * RET1: previous RTBA * ERRORS: No possible error. * * Returns the current value of RTBA in RET1.
*/ #define HV_FAST_CPU_GET_RTBA 0x19
/* Page size index. The value given in the TSB descriptor must correspond * to the smallest page size specified in the pgsz_mask page size bitmask.
*/ #define HV_PGSZ_IDX_8K 0 #define HV_PGSZ_IDX_64K 1 #define HV_PGSZ_IDX_512K 2 #define HV_PGSZ_IDX_4MB 3 #define HV_PGSZ_IDX_32MB 4 #define HV_PGSZ_IDX_256MB 5 #define HV_PGSZ_IDX_2GB 6 #define HV_PGSZ_IDX_16GB 7
/* MMU fault status area. * * MMU related faults have their status and fault address information * placed into a memory region made available by privileged code. Each * virtual processor must make a mmu_fault_area_conf() call to tell the * hypervisor where that processor's fault status should be stored. * * The fault status block is a multiple of 64-bytes and must be aligned * on a 64-byte boundary.
*/ #ifndef __ASSEMBLY__ struct hv_fault_status { unsignedlong i_fault_type; unsignedlong i_fault_addr; unsignedlong i_fault_ctx; unsignedlong i_reserved[5]; unsignedlong d_fault_type; unsignedlong d_fault_addr; unsignedlong d_fault_ctx; unsignedlong d_reserved[5];
}; #endif #define HV_FAULT_I_TYPE_OFFSET 0x00 #define HV_FAULT_I_ADDR_OFFSET 0x08 #define HV_FAULT_I_CTX_OFFSET 0x10 #define HV_FAULT_D_TYPE_OFFSET 0x40 #define HV_FAULT_D_ADDR_OFFSET 0x48 #define HV_FAULT_D_CTX_OFFSET 0x50
/* mmu_map_addr() * TRAP: HV_MMU_MAP_ADDR_TRAP * ARG0: virtual address * ARG1: mmu context * ARG2: TTE * ARG3: flags (HV_MMU_{IMMU,DMMU}) * ERRORS: EINVAL Invalid virtual address, mmu context, or flags * EBADPGSZ Invalid page size value * ENORADDR Invalid real address in TTE * * Create a non-permanent mapping using the given TTE, virtual * address, and mmu context. The flags argument determines which * (data, or instruction, or both) TLB the mapping gets loaded into. * * The behavior is undefined if the valid bit is clear in the TTE. * * Note: This API call is for privileged code to specify temporary translation * mappings without the need to create and manage a TSB.
*/
/* mmu_unmap_addr() * TRAP: HV_MMU_UNMAP_ADDR_TRAP * ARG0: virtual address * ARG1: mmu context * ARG2: flags (HV_MMU_{IMMU,DMMU}) * ERRORS: EINVAL Invalid virtual address, mmu context, or flags * * Demaps the given virtual address in the given mmu context on this * CPU. This function is intended to be used to demap pages mapped * with mmu_map_addr. This service is equivalent to invoking * mmu_demap_page() with only the current CPU in the CPU list. The * flags argument determines which (data, or instruction, or both) TLB * the mapping gets unmapped from. * * Attempting to perform an unmap operation for a previously defined * permanent mapping will have undefined results.
*/
/* mmu_tsb_ctx0() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_TSB_CTX0 * ARG0: number of TSB descriptions * ARG1: TSB descriptions pointer * RET0: status * ERRORS: ENORADDR Invalid TSB descriptions pointer or * TSB base within a descriptor * EBADALIGN TSB descriptions pointer is not aligned * to an 8-byte boundary, or TSB base * within a descriptor is not aligned for * the given TSB size * EBADPGSZ Invalid page size in a TSB descriptor * EBADTSB Invalid associativity or size in a TSB * descriptor * EINVAL Invalid number of TSB descriptions, or * invalid context index in a TSB * descriptor, or index page size not * equal to smallest page size in page * size bitmask field. * * Configures the TSBs for the current CPU for virtual addresses with * context zero. The TSB descriptions pointer is a pointer to an * array of the given number of TSB descriptions. * * Note: The maximum number of TSBs available to a virtual CPU is given by the * mmu-max-#tsbs property of the cpu's corresponding "cpu" node in the * machine description.
*/ #define HV_FAST_MMU_TSB_CTX0 0x20
/* mmu_tsb_ctxnon0() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_TSB_CTXNON0 * ARG0: number of TSB descriptions * ARG1: TSB descriptions pointer * RET0: status * ERRORS: Same as for mmu_tsb_ctx0() above. * * Configures the TSBs for the current CPU for virtual addresses with * non-zero contexts. The TSB descriptions pointer is a pointer to an * array of the given number of TSB descriptions. * * Note: A maximum of 16 TSBs may be specified in the TSB description list.
*/ #define HV_FAST_MMU_TSB_CTXNON0 0x21
/* mmu_demap_page() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_DEMAP_PAGE * ARG0: reserved, must be zero * ARG1: reserved, must be zero * ARG2: virtual address * ARG3: mmu context * ARG4: flags (HV_MMU_{IMMU,DMMU}) * RET0: status * ERRORS: EINVAL Invalid virtual address, context, or * flags value * ENOTSUPPORTED ARG0 or ARG1 is non-zero * * Demaps any page mapping of the given virtual address in the given * mmu context for the current virtual CPU. Any virtually tagged * caches are guaranteed to be kept consistent. The flags argument * determines which TLB (instruction, or data, or both) participate in * the operation. * * ARG0 and ARG1 are both reserved and must be set to zero.
*/ #define HV_FAST_MMU_DEMAP_PAGE 0x22
/* mmu_demap_ctx() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_DEMAP_CTX * ARG0: reserved, must be zero * ARG1: reserved, must be zero * ARG2: mmu context * ARG3: flags (HV_MMU_{IMMU,DMMU}) * RET0: status * ERRORS: EINVAL Invalid context or flags value * ENOTSUPPORTED ARG0 or ARG1 is non-zero * * Demaps all non-permanent virtual page mappings previously specified * for the given context for the current virtual CPU. Any virtual * tagged caches are guaranteed to be kept consistent. The flags * argument determines which TLB (instruction, or data, or both) * participate in the operation. * * ARG0 and ARG1 are both reserved and must be set to zero.
*/ #define HV_FAST_MMU_DEMAP_CTX 0x23
/* mmu_demap_all() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_DEMAP_ALL * ARG0: reserved, must be zero * ARG1: reserved, must be zero * ARG2: flags (HV_MMU_{IMMU,DMMU}) * RET0: status * ERRORS: EINVAL Invalid flags value * ENOTSUPPORTED ARG0 or ARG1 is non-zero * * Demaps all non-permanent virtual page mappings previously specified * for the current virtual CPU. Any virtual tagged caches are * guaranteed to be kept consistent. The flags argument determines * which TLB (instruction, or data, or both) participate in the * operation. * * ARG0 and ARG1 are both reserved and must be set to zero.
*/ #define HV_FAST_MMU_DEMAP_ALL 0x24
/* mmu_map_perm_addr() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_MAP_PERM_ADDR * ARG0: virtual address * ARG1: reserved, must be zero * ARG2: TTE * ARG3: flags (HV_MMU_{IMMU,DMMU}) * RET0: status * ERRORS: EINVAL Invalid virtual address or flags value * EBADPGSZ Invalid page size value * ENORADDR Invalid real address in TTE * ETOOMANY Too many mappings (max of 8 reached) * * Create a permanent mapping using the given TTE and virtual address * for context 0 on the calling virtual CPU. A maximum of 8 such * permanent mappings may be specified by privileged code. Mappings * may be removed with mmu_unmap_perm_addr(). * * The behavior is undefined if a TTE with the valid bit clear is given. * * Note: This call is used to specify address space mappings for which * privileged code does not expect to receive misses. For example, * this mechanism can be used to map kernel nucleus code and data.
*/ #define HV_FAST_MMU_MAP_PERM_ADDR 0x25
/* mmu_fault_area_conf() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_FAULT_AREA_CONF * ARG0: real address * RET0: status * RET1: previous mmu fault area real address * ERRORS: ENORADDR Invalid real address * EBADALIGN Invalid alignment for fault area * * Configure the MMU fault status area for the calling CPU. A 64-byte * aligned real address specifies where MMU fault status information * is placed. The return value is the previously specified area, or 0 * for the first invocation. Specifying a fault area at real address * 0 is not allowed.
*/ #define HV_FAST_MMU_FAULT_AREA_CONF 0x26
/* mmu_enable() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_ENABLE * ARG0: enable flag * ARG1: return target address * RET0: status * ERRORS: ENORADDR Invalid real address when disabling * translation. * EBADALIGN The return target address is not * aligned to an instruction. * EINVAL The enable flag request the current * operating mode (e.g. disable if already * disabled) * * Enable or disable virtual address translation for the calling CPU * within the virtual machine domain. If the enable flag is zero, * translation is disabled, any non-zero value will enable * translation. * * When this function returns, the newly selected translation mode * will be active. If the mmu is being enabled, then the return * target address is a virtual address else it is a real address. * * Upon successful completion, control will be returned to the given * return target address (ie. the cpu will jump to that address). On * failure, the previous mmu mode remains and the trap simply returns * as normal with the appropriate error code in RET0.
*/ #define HV_FAST_MMU_ENABLE 0x27
/* mmu_unmap_perm_addr() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_UNMAP_PERM_ADDR * ARG0: virtual address * ARG1: reserved, must be zero * ARG2: flags (HV_MMU_{IMMU,DMMU}) * RET0: status * ERRORS: EINVAL Invalid virtual address or flags value * ENOMAP Specified mapping was not found * * Demaps any permanent page mapping (established via * mmu_map_perm_addr()) at the given virtual address for context 0 on * the current virtual CPU. Any virtual tagged caches are guaranteed * to be kept consistent.
*/ #define HV_FAST_MMU_UNMAP_PERM_ADDR 0x28
/* mmu_tsb_ctx0_info() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_TSB_CTX0_INFO * ARG0: max TSBs * ARG1: buffer pointer * RET0: status * RET1: number of TSBs * ERRORS: EINVAL Supplied buffer is too small * EBADALIGN The buffer pointer is badly aligned * ENORADDR Invalid real address for buffer pointer * * Return the TSB configuration as previous defined by mmu_tsb_ctx0() * into the provided buffer. The size of the buffer is given in ARG1 * in terms of the number of TSB description entries. * * Upon return, RET1 always contains the number of TSB descriptions * previously configured. If zero TSBs were configured, EOK is * returned with RET1 containing 0.
*/ #define HV_FAST_MMU_TSB_CTX0_INFO 0x29
/* mmu_tsb_ctxnon0_info() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_TSB_CTXNON0_INFO * ARG0: max TSBs * ARG1: buffer pointer * RET0: status * RET1: number of TSBs * ERRORS: EINVAL Supplied buffer is too small * EBADALIGN The buffer pointer is badly aligned * ENORADDR Invalid real address for buffer pointer * * Return the TSB configuration as previous defined by * mmu_tsb_ctxnon0() into the provided buffer. The size of the buffer * is given in ARG1 in terms of the number of TSB description entries. * * Upon return, RET1 always contains the number of TSB descriptions * previously configured. If zero TSBs were configured, EOK is * returned with RET1 containing 0.
*/ #define HV_FAST_MMU_TSB_CTXNON0_INFO 0x2a
/* mmu_fault_area_info() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_FAULT_AREA_INFO * RET0: status * RET1: fault area real address * ERRORS: No errors defined. * * Return the currently defined MMU fault status area for the current * CPU. The real address of the fault status area is returned in * RET1, or 0 is returned in RET1 if no fault status area is defined. * * Note: mmu_fault_area_conf() may be called with the return value (RET1) * from this service if there is a need to save and restore the fault * area for a cpu.
*/ #define HV_FAST_MMU_FAULT_AREA_INFO 0x2b
/* Cache and Memory services. */
/* mem_scrub() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MEM_SCRUB * ARG0: real address * ARG1: length * RET0: status * RET1: length scrubbed * ERRORS: ENORADDR Invalid real address * EBADALIGN Start address or length are not correctly * aligned * EINVAL Length is zero * * Zero the memory contents in the range real address to real address * plus length minus 1. Also, valid ECC will be generated for that * memory address range. Scrubbing is started at the given real * address, but may not scrub the entire given length. The actual * length scrubbed will be returned in RET1. * * The real address and length must be aligned on an 8K boundary, or * contain the start address and length from a sun4v error report. * * Note: There are two uses for this function. The first use is to block clear * and initialize memory and the second is to scrub an u ncorrectable * error reported via a resumable or non-resumable trap. The second * use requires the arguments to be equal to the real address and length * provided in a sun4v memory error report.
*/ #define HV_FAST_MEM_SCRUB 0x31
/* mem_sync() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MEM_SYNC * ARG0: real address * ARG1: length * RET0: status * RET1: length synced * ERRORS: ENORADDR Invalid real address * EBADALIGN Start address or length are not correctly * aligned * EINVAL Length is zero * * Force the next access within the real address to real address plus * length minus 1 to be fetches from main system memory. Less than * the given length may be synced, the actual amount synced is * returned in RET1. The real address and length must be aligned on * an 8K boundary.
*/ #define HV_FAST_MEM_SYNC 0x32
/* Coprocessor services * * M7 and later processors provide an on-chip coprocessor which * accelerates database operations, and is known internally as * DAX.
*/
/* ccb_submit() * TRAP: HV_FAST_TRAP * FUNCTION: HV_CCB_SUBMIT * ARG0: address of CCB array * ARG1: size (in bytes) of CCB array being submitted * ARG2: flags * ARG3: reserved * RET0: status (success or error code) * RET1: size (in bytes) of CCB array that was accepted (might be less * than arg1) * RET2: status data * if status == ENOMAP or ENOACCESS, identifies the VA in question * if status == EUNAVAILBLE, unavailable code * RET3: reserved * * ERRORS: EOK successful submission (check size) * EWOULDBLOCK could not finish submissions, try again * EBADALIGN array not 64B aligned or size not 64B multiple * ENORADDR invalid RA for array or in CCB * ENOMAP could not translate address (see status data) * EINVAL invalid ccb or arguments * ETOOMANY too many ccbs with all-or-nothing flag * ENOACCESS guest has no access to submit ccbs or address * in CCB does not have correct permissions (check * status data) * EUNAVAILABLE ccb operation could not be performed at this * time (check status data) * Status data codes: * 0 - exact CCB could not be executed * 1 - CCB opcode cannot be executed * 2 - CCB version cannot be executed * 3 - vcpu cannot execute CCBs * 4 - no CCBs can be executed
*/
/* ccb_info() * TRAP: HV_FAST_TRAP * FUNCTION: HV_CCB_INFO * ARG0: real address of CCB completion area * RET0: status (success or error code) * RET1: info array * - RET1[0]: CCB state * - RET1[1]: dax unit * - RET1[2]: queue number * - RET1[3]: queue position * * ERRORS: EOK operation successful * EBADALIGN address not 64B aligned * ENORADDR RA in address not valid * EINVAL CA not valid * EWOULDBLOCK info not available for this CCB currently, try * again * ENOACCESS guest cannot use dax
*/
/* ccb_kill() * TRAP: HV_FAST_TRAP * FUNCTION: HV_CCB_KILL * ARG0: real address of CCB completion area * RET0: status (success or error code) * RET1: CCB kill status * * ERRORS: EOK operation successful * EBADALIGN address not 64B aligned * ENORADDR RA in address not valid * EINVAL CA not valid * EWOULDBLOCK kill not available for this CCB currently, try * again * ENOACCESS guest cannot use dax
*/
/* Time of day services. * * The hypervisor maintains the time of day on a per-domain basis. * Changing the time of day in one domain does not affect the time of * day on any other domain. * * Time is described by a single unsigned 64-bit word which is the * number of seconds since the UNIX Epoch (00:00:00 UTC, January 1, * 1970).
*/
/* tod_get() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_TOD_GET * RET0: status * RET1: TOD * ERRORS: EWOULDBLOCK TOD resource is temporarily unavailable * ENOTSUPPORTED If TOD not supported on this platform * * Return the current time of day. May block if TOD access is * temporarily not possible.
*/ #define HV_FAST_TOD_GET 0x50
/* tod_set() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_TOD_SET * ARG0: TOD * RET0: status * ERRORS: EWOULDBLOCK TOD resource is temporarily unavailable * ENOTSUPPORTED If TOD not supported on this platform * * The current time of day is set to the value specified in ARG0. May * block if TOD access is temporarily not possible.
*/ #define HV_FAST_TOD_SET 0x51
/* con_getchar() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CONS_GETCHAR * RET0: status * RET1: character * ERRORS: EWOULDBLOCK No character available. * * Returns a character from the console device. If no character is * available then an EWOULDBLOCK error is returned. If a character is * available, then the returned status is EOK and the character value * is in RET1. * * A virtual BREAK is represented by the 64-bit value -1. * * A virtual HUP signal is represented by the 64-bit value -2.
*/ #define HV_FAST_CONS_GETCHAR 0x60
/* con_putchar() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CONS_PUTCHAR * ARG0: character * RET0: status * ERRORS: EINVAL Illegal character * EWOULDBLOCK Output buffer currently full, would block * * Send a character to the console device. Only character values * between 0 and 255 may be used. Values outside this range are * invalid except for the 64-bit value -1 which is used to send a * virtual BREAK.
*/ #define HV_FAST_CONS_PUTCHAR 0x61
/* con_read() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CONS_READ * ARG0: buffer real address * ARG1: buffer size in bytes * RET0: status * RET1: bytes read or BREAK or HUP * ERRORS: EWOULDBLOCK No character available. * * Reads characters into a buffer from the console device. If no * character is available then an EWOULDBLOCK error is returned. * If a character is available, then the returned status is EOK * and the number of bytes read into the given buffer is provided * in RET1. * * A virtual BREAK is represented by the 64-bit RET1 value -1. * * A virtual HUP signal is represented by the 64-bit RET1 value -2. * * If BREAK or HUP are indicated, no bytes were read into buffer.
*/ #define HV_FAST_CONS_READ 0x62
/* con_write() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_CONS_WRITE * ARG0: buffer real address * ARG1: buffer size in bytes * RET0: status * RET1: bytes written * ERRORS: EWOULDBLOCK Output buffer currently full, would block * * Send a characters in buffer to the console device. Breaks must be * sent using con_putchar().
*/ #define HV_FAST_CONS_WRITE 0x63
#ifndef __ASSEMBLY__ long sun4v_con_getchar(long *status); long sun4v_con_putchar(long c); long sun4v_con_read(unsignedlong buffer, unsignedlong size, unsignedlong *bytes_read); unsignedlong sun4v_con_write(unsignedlong buffer, unsignedlong size, unsignedlong *bytes_written); #endif
/* mach_set_soft_state() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MACH_SET_SOFT_STATE * ARG0: software state * ARG1: software state description pointer * RET0: status * ERRORS: EINVAL software state not valid or software state * description is not NULL terminated * ENORADDR software state description pointer is not a * valid real address * EBADALIGNED software state description is not correctly * aligned * * This allows the guest to report its soft state to the hypervisor. There * are two primary components to this state. The first part states whether * the guest software is running or not. The second containts optional * details specific to the software. * * The software state argument is defined below in HV_SOFT_STATE_*, and * indicates whether the guest is operating normally or in a transitional * state. * * The software state description argument is a real address of a data buffer * of size 32-bytes aligned on a 32-byte boundary. It is treated as a NULL * terminated 7-bit ASCII string of up to 31 characters not including the * NULL termination.
*/ #define HV_FAST_MACH_SET_SOFT_STATE 0x70 #define HV_SOFT_STATE_NORMAL 0x01 #define HV_SOFT_STATE_TRANSITION 0x02
/* mach_get_soft_state() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MACH_GET_SOFT_STATE * ARG0: software state description pointer * RET0: status * RET1: software state * ERRORS: ENORADDR software state description pointer is not a * valid real address * EBADALIGNED software state description is not correctly * aligned * * Retrieve the current value of the guest's software state. The rules * for the software state pointer are the same as for mach_set_soft_state() * above.
*/ #define HV_FAST_MACH_GET_SOFT_STATE 0x71
/* svc_send() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_SVC_SEND * ARG0: service ID * ARG1: buffer real address * ARG2: buffer size * RET0: STATUS * RET1: sent_bytes * * Be careful, all output registers are clobbered by this operation, * so for example it is not possible to save away a value in %o4 * across the trap.
*/ #define HV_FAST_SVC_SEND 0x80
/* svc_recv() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_SVC_RECV * ARG0: service ID * ARG1: buffer real address * ARG2: buffer size * RET0: STATUS * RET1: recv_bytes * * Be careful, all output registers are clobbered by this operation, * so for example it is not possible to save away a value in %o4 * across the trap.
*/ #define HV_FAST_SVC_RECV 0x81
/* svc_getstatus() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_SVC_GETSTATUS * ARG0: service ID * RET0: STATUS * RET1: status bits
*/ #define HV_FAST_SVC_GETSTATUS 0x82
/* svc_setstatus() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_SVC_SETSTATUS * ARG0: service ID * ARG1: bits to set * RET0: STATUS
*/ #define HV_FAST_SVC_SETSTATUS 0x83
/* svc_clrstatus() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_SVC_CLRSTATUS * ARG0: service ID * ARG1: bits to clear * RET0: STATUS
*/ #define HV_FAST_SVC_CLRSTATUS 0x84
/* Trap trace services. * * The hypervisor provides a trap tracing capability for privileged * code running on each virtual CPU. Privileged code provides a * round-robin trap trace queue within which the hypervisor writes * 64-byte entries detailing hyperprivileged traps taken n behalf of * privileged code. This is provided as a debugging capability for * privileged code. * * The trap trace control structure is 64-bytes long and placed at the * start (offset 0) of the trap trace buffer, and is described as * follows:
*/ #ifndef __ASSEMBLY__ struct hv_trap_trace_control { unsignedlong head_offset; unsignedlong tail_offset; unsignedlong __reserved[0x30 / sizeof(unsignedlong)];
}; #endif #define HV_TRAP_TRACE_CTRL_HEAD_OFFSET 0x00 #define HV_TRAP_TRACE_CTRL_TAIL_OFFSET 0x08
/* The head offset is the offset of the most recently completed entry * in the trap-trace buffer. The tail offset is the offset of the * next entry to be written. The control structure is owned and * modified by the hypervisor. A guest may not modify the control * structure contents. Attempts to do so will result in undefined * behavior for the guest. * * Each trap trace buffer entry is laid out as follows:
*/ #ifndef __ASSEMBLY__ struct hv_trap_trace_entry { unsignedchar type; /* Hypervisor or guest entry? */ unsignedchar hpstate; /* Hyper-privileged state */ unsignedchar tl; /* Trap level */ unsignedchar gl; /* Global register level */ unsignedshort tt; /* Trap type */ unsignedshort tag; /* Extended trap identifier */ unsignedlong tstate; /* Trap state */ unsignedlong tick; /* Tick */ unsignedlong tpc; /* Trap PC */ unsignedlong f1; /* Entry specific */ unsignedlong f2; /* Entry specific */ unsignedlong f3; /* Entry specific */ unsignedlong f4; /* Entry specific */
}; #endif #define HV_TRAP_TRACE_ENTRY_TYPE 0x00 #define HV_TRAP_TRACE_ENTRY_HPSTATE 0x01 #define HV_TRAP_TRACE_ENTRY_TL 0x02 #define HV_TRAP_TRACE_ENTRY_GL 0x03 #define HV_TRAP_TRACE_ENTRY_TT 0x04 #define HV_TRAP_TRACE_ENTRY_TAG 0x06 #define HV_TRAP_TRACE_ENTRY_TSTATE 0x08 #define HV_TRAP_TRACE_ENTRY_TICK 0x10 #define HV_TRAP_TRACE_ENTRY_TPC 0x18 #define HV_TRAP_TRACE_ENTRY_F1 0x20 #define HV_TRAP_TRACE_ENTRY_F2 0x28 #define HV_TRAP_TRACE_ENTRY_F3 0x30 #define HV_TRAP_TRACE_ENTRY_F4 0x38
/* The type field is encoded as follows. */ #define HV_TRAP_TYPE_UNDEF 0x00 /* Entry content undefined */ #define HV_TRAP_TYPE_HV 0x01 /* Hypervisor trap entry */ #define HV_TRAP_TYPE_GUEST 0xff /* Added via ttrace_addentry() */
/* ttrace_buf_conf() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_TTRACE_BUF_CONF * ARG0: real address * ARG1: number of entries * RET0: status * RET1: number of entries * ERRORS: ENORADDR Invalid real address * EINVAL Size is too small * EBADALIGN Real address not aligned on 64-byte boundary * * Requests hypervisor trap tracing and declares a virtual CPU's trap * trace buffer to the hypervisor. The real address supplies the real * base address of the trap trace queue and must be 64-byte aligned. * Specifying a value of 0 for the number of entries disables trap * tracing for the calling virtual CPU. The buffer allocated must be * sized for a power of two number of 64-byte trap trace entries plus * an initial 64-byte control structure. * * This may be invoked any number of times so that a virtual CPU may * relocate a trap trace buffer or create "snapshots" of information. * * If the real address is illegal or badly aligned, then trap tracing * is disabled and an error is returned. * * Upon failure with EINVAL, this service call returns in RET1 the * minimum number of buffer entries required. Upon other failures * RET1 is undefined.
*/ #define HV_FAST_TTRACE_BUF_CONF 0x90
/* ttrace_buf_info() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_TTRACE_BUF_INFO * RET0: status * RET1: real address * RET2: size * ERRORS: None defined. * * Returns the size and location of the previously declared trap-trace * buffer. In the event that no buffer was previously defined, or the * buffer is disabled, this call will return a size of zero bytes.
*/ #define HV_FAST_TTRACE_BUF_INFO 0x91
/* ttrace_enable() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_TTRACE_ENABLE * ARG0: enable * RET0: status * RET1: previous enable state * ERRORS: EINVAL No trap trace buffer currently defined * * Enable or disable trap tracing, and return the previous enabled * state in RET1. Future systems may define various flags for the * enable argument (ARG0), for the moment a guest should pass * "(uint64_t) -1" to enable, and "(uint64_t) 0" to disable all * tracing - which will ensure future compatibility.
*/ #define HV_FAST_TTRACE_ENABLE 0x92
/* ttrace_freeze() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_TTRACE_FREEZE * ARG0: freeze * RET0: status * RET1: previous freeze state * ERRORS: EINVAL No trap trace buffer currently defined * * Freeze or unfreeze trap tracing, returning the previous freeze * state in RET1. A guest should pass a non-zero value to freeze and * a zero value to unfreeze all tracing. The returned previous state * is 0 for not frozen and 1 for frozen.
*/ #define HV_FAST_TTRACE_FREEZE 0x93
/* ttrace_addentry() * TRAP: HV_TTRACE_ADDENTRY_TRAP * ARG0: tag (16-bits) * ARG1: data word 0 * ARG2: data word 1 * ARG3: data word 2 * ARG4: data word 3 * RET0: status * ERRORS: EINVAL No trap trace buffer currently defined * * Add an entry to the trap trace buffer. Upon return only ARG0/RET0 * is modified - none of the other registers holding arguments are * volatile across this hypervisor service.
*/
/* Core dump services. * * Since the hypervisor viraulizes and thus obscures a lot of the * physical machine layout and state, traditional OS crash dumps can * be difficult to diagnose especially when the problem is a * configuration error of some sort. * * The dump services provide an opaque buffer into which the * hypervisor can place its internal state in order to assist in * debugging such situations. The contents are opaque and extremely * platform and hypervisor implementation specific. The guest, during * a core dump, requests that the hypervisor update any information in * the dump buffer in preparation to being dumped as part of the * domain's memory image.
*/
/* dump_buf_update() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_DUMP_BUF_UPDATE * ARG0: real address * ARG1: size * RET0: status * RET1: required size of dump buffer * ERRORS: ENORADDR Invalid real address * EBADALIGN Real address is not aligned on a 64-byte * boundary * EINVAL Size is non-zero but less than minimum size * required * ENOTSUPPORTED Operation not supported on current logical * domain * * Declare a domain dump buffer to the hypervisor. The real address * provided for the domain dump buffer must be 64-byte aligned. The * size specifies the size of the dump buffer and may be larger than * the minimum size specified in the machine description. The * hypervisor will fill the dump buffer with opaque data. * * Note: A guest may elect to include dump buffer contents as part of a crash * dump to assist with debugging. This function may be called any number * of times so that a guest may relocate a dump buffer, or create * "snapshots" of any dump-buffer information. Each call to * dump_buf_update() atomically declares the new dump buffer to the * hypervisor. * * A specified size of 0 unconfigures the dump buffer. If the real * address is illegal or badly aligned, then any currently active dump * buffer is disabled and an error is returned. * * In the event that the call fails with EINVAL, RET1 contains the * minimum size requires by the hypervisor for a valid dump buffer.
*/ #define HV_FAST_DUMP_BUF_UPDATE 0x94
/* dump_buf_info() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_DUMP_BUF_INFO * RET0: status * RET1: real address of current dump buffer * RET2: size of current dump buffer * ERRORS: No errors defined. * * Return the currently configures dump buffer description. A * returned size of 0 bytes indicates an undefined dump buffer. In * this case the return address in RET1 is undefined.
*/ #define HV_FAST_DUMP_BUF_INFO 0x95
/* Device interrupt services. * * Device interrupts are allocated to system bus bridges by the hypervisor, * and described to OBP in the machine description. OBP then describes * these interrupts to the OS via properties in the device tree. * * Terminology: * * cpuid Unique opaque value which represents a target cpu. * * devhandle Device handle. It uniquely identifies a device, and * consistes of the lower 28-bits of the hi-cell of the * first entry of the device's "reg" property in the * OBP device tree. * * devino Device interrupt number. Specifies the relative * interrupt number within the device. The unique * combination of devhandle and devino are used to * identify a specific device interrupt. * * Note: The devino value is the same as the values in the * "interrupts" property or "interrupt-map" property * in the OBP device tree for that device. * * sysino System interrupt number. A 64-bit unsigned interger * representing a unique interrupt within a virtual * machine. * * intr_state A flag representing the interrupt state for a given * sysino. The state values are defined below. * * intr_enabled A flag representing the 'enabled' state for a given * sysino. The enable values are defined below.
*/
#define HV_INTR_STATE_IDLE 0 /* Nothing pending */ #define HV_INTR_STATE_RECEIVED 1 /* Interrupt received by hardware */ #define HV_INTR_STATE_DELIVERED 2 /* Interrupt delivered to queue */
/* intr_devino_to_sysino() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_INTR_DEVINO2SYSINO * ARG0: devhandle * ARG1: devino * RET0: status * RET1: sysino * ERRORS: EINVAL Invalid devhandle/devino * * Converts a device specific interrupt number of the given * devhandle/devino into a system specific ino (sysino).
*/ #define HV_FAST_INTR_DEVINO2SYSINO 0xa0
/* intr_getenabled() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_INTR_GETENABLED * ARG0: sysino * RET0: status * RET1: intr_enabled (HV_INTR_{DISABLED,ENABLED}) * ERRORS: EINVAL Invalid sysino * * Returns interrupt enabled state in RET1 for the interrupt defined * by the given sysino.
*/ #define HV_FAST_INTR_GETENABLED 0xa1
/* intr_setenabled() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_INTR_SETENABLED * ARG0: sysino * ARG1: intr_enabled (HV_INTR_{DISABLED,ENABLED}) * RET0: status * ERRORS: EINVAL Invalid sysino or intr_enabled value * * Set the 'enabled' state of the interrupt sysino.
*/ #define HV_FAST_INTR_SETENABLED 0xa2
/* intr_getstate() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_INTR_GETSTATE * ARG0: sysino * RET0: status * RET1: intr_state (HV_INTR_STATE_*) * ERRORS: EINVAL Invalid sysino * * Returns current state of the interrupt defined by the given sysino.
*/ #define HV_FAST_INTR_GETSTATE 0xa3
/* intr_setstate() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_INTR_SETSTATE * ARG0: sysino * ARG1: intr_state (HV_INTR_STATE_*) * RET0: status * ERRORS: EINVAL Invalid sysino or intr_state value * * Sets the current state of the interrupt described by the given sysino * value. * * Note: Setting the state to HV_INTR_STATE_IDLE clears any pending * interrupt for sysino.
*/ #define HV_FAST_INTR_SETSTATE 0xa4
/* intr_gettarget() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_INTR_GETTARGET * ARG0: sysino * RET0: status * RET1: cpuid * ERRORS: EINVAL Invalid sysino * * Returns CPU that is the current target of the interrupt defined by * the given sysino. The CPU value returned is undefined if the target * has not been set via intr_settarget().
*/ #define HV_FAST_INTR_GETTARGET 0xa5
/* intr_settarget() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_INTR_SETTARGET * ARG0: sysino * ARG1: cpuid * RET0: status * ERRORS: EINVAL Invalid sysino * ENOCPU Invalid cpuid * * Set the target CPU for the interrupt defined by the given sysino.
*/ #define HV_FAST_INTR_SETTARGET 0xa6
/* PCI IO services. * * See the terminology descriptions in the device interrupt services * section above as those apply here too. Here are terminology * definitions specific to these PCI IO services: * * tsbnum TSB number. Indentifies which io-tsb is used. * For this version of the specification, tsbnum * must be zero. * * tsbindex TSB index. Identifies which entry in the TSB * is used. The first entry is zero. * * tsbid A 64-bit aligned data structure which contains * a tsbnum and a tsbindex. Bits 63:32 contain the * tsbnum and bits 31:00 contain the tsbindex. * * Use the HV_PCI_TSBID() macro to construct such * values. * * io_attributes IO attributes for IOMMU mappings. One of more * of the attritbute bits are stores in a 64-bit * value. The values are defined below. * * r_addr 64-bit real address * * pci_device PCI device address. A PCI device address identifies * a specific device on a specific PCI bus segment. * A PCI device address ia a 32-bit unsigned integer * with the following format: * * 00000000.bbbbbbbb.dddddfff.00000000 * * Use the HV_PCI_DEVICE_BUILD() macro to construct * such values. * * pci_config_offset * PCI configureation space offset. For conventional * PCI a value between 0 and 255. For extended * configuration space, a value between 0 and 4095. * * Note: For PCI configuration space accesses, the offset * must be aligned to the access size. * * error_flag A return value which specifies if the action succeeded * or failed. 0 means no error, non-0 means some error * occurred while performing the service. * * io_sync_direction * Direction definition for pci_dma_sync(), defined * below in HV_PCI_SYNC_*. * * io_page_list A list of io_page_addresses, an io_page_address is * a real address. * * io_page_list_p A pointer to an io_page_list. * * "size based byte swap" - Some functions do size based byte swapping * which allows sw to access pointers and * counters in native form when the processor * operates in a different endianness than the * IO bus. Size-based byte swapping converts a * multi-byte field between big-endian and * little-endian format.
*/
/* pci_iommu_map() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_PCI_IOMMU_MAP * ARG0: devhandle * ARG1: tsbid * ARG2: #ttes * ARG3: io_attributes * ARG4: io_page_list_p * RET0: status * RET1: #ttes mapped * ERRORS: EINVAL Invalid devhandle/tsbnum/tsbindex/io_attributes * EBADALIGN Improperly aligned real address * ENORADDR Invalid real address * * Create IOMMU mappings in the sun4v device defined by the given * devhandle. The mappings are created in the TSB defined by the * tsbnum component of the given tsbid. The first mapping is created * in the TSB i ndex defined by the tsbindex component of the given tsbid. * The call creates up to #ttes mappings, the first one at tsbnum, tsbindex, * the second at tsbnum, tsbindex + 1, etc. * * All mappings are created with the attributes defined by the io_attributes * argument. The page mapping addresses are described in the io_page_list * defined by the given io_page_list_p, which is a pointer to the io_page_list. * The first entry in the io_page_list is the address for the first iotte, the * 2nd for the 2nd iotte, and so on. * * Each io_page_address in the io_page_list must be appropriately aligned. * #ttes must be greater than zero. For this version of the spec, the tsbnum * component of the given tsbid must be zero. * * Returns the actual number of mappings creates, which may be less than * or equal to the argument #ttes. If the function returns a value which * is less than the #ttes, the caller may continus to call the function with * an updated tsbid, #ttes, io_page_list_p arguments until all pages are * mapped. * * Note: This function does not imply an iotte cache flush. The guest must * demap an entry before re-mapping it.
*/ #define HV_FAST_PCI_IOMMU_MAP 0xb0
/* pci_iommu_demap() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_PCI_IOMMU_DEMAP * ARG0: devhandle * ARG1: tsbid * ARG2: #ttes * RET0: status * RET1: #ttes demapped * ERRORS: EINVAL Invalid devhandle/tsbnum/tsbindex * * Demap and flush IOMMU mappings in the device defined by the given * devhandle. Demaps up to #ttes entries in the TSB defined by the tsbnum * component of the given tsbid, starting at the TSB index defined by the * tsbindex component of the given tsbid. * * For this version of the spec, the tsbnum of the given tsbid must be zero.
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