diff options
Diffstat (limited to 'arch/powerpc/include/asm/hvcall.h')
| -rw-r--r-- | arch/powerpc/include/asm/hvcall.h | 411 |
1 files changed, 368 insertions, 43 deletions
diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index 0c7f2bfcf134..9aef16149d92 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_POWERPC_HVCALL_H #define _ASM_POWERPC_HVCALL_H #ifdef __KERNEL__ @@ -78,6 +79,7 @@ #define H_NOT_ENOUGH_RESOURCES -44 #define H_R_STATE -45 #define H_RESCINDED -46 +#define H_ABORTED -54 #define H_P2 -55 #define H_P3 -56 #define H_P4 -57 @@ -86,7 +88,9 @@ #define H_P7 -60 #define H_P8 -61 #define H_P9 -62 +#define H_NOOP -63 #define H_TOO_BIG -64 +#define H_UNSUPPORTED -67 #define H_OVERLAP -68 #define H_INTERRUPT -69 #define H_BAD_DATA -70 @@ -94,6 +98,20 @@ #define H_SG_LIST -72 #define H_OP_MODE -73 #define H_COP_HW -74 +#define H_STATE -75 +#define H_IN_USE -77 + +#define H_INVALID_ELEMENT_ID -79 +#define H_INVALID_ELEMENT_SIZE -80 +#define H_INVALID_ELEMENT_VALUE -81 +#define H_INPUT_BUFFER_NOT_DEFINED -82 +#define H_INPUT_BUFFER_TOO_SMALL -83 +#define H_OUTPUT_BUFFER_NOT_DEFINED -84 +#define H_OUTPUT_BUFFER_TOO_SMALL -85 +#define H_PARTITION_PAGE_TABLE_NOT_DEFINED -86 +#define H_GUEST_VCPU_STATE_NOT_HV_OWNED -87 + + #define H_UNSUPPORTED_FLAG_START -256 #define H_UNSUPPORTED_FLAG_END -511 #define H_MULTI_THREADS_ACTIVE -9005 @@ -152,6 +170,14 @@ #define H_VASI_RESUMED 5 #define H_VASI_COMPLETED 6 +/* VASI signal codes. Only the Cancel code is valid for H_VASI_SIGNAL. */ +#define H_VASI_SIGNAL_CANCEL 1 +#define H_VASI_SIGNAL_ABORT 2 +#define H_VASI_SIGNAL_SUSPEND 3 +#define H_VASI_SIGNAL_COMPLETE 4 +#define H_VASI_SIGNAL_ENABLE 5 +#define H_VASI_SIGNAL_FAILOVER 6 + /* Each control block has to be on a 4K boundary */ #define H_CB_ALIGNMENT 4096 @@ -234,15 +260,17 @@ #define H_CREATE_RPT 0x1A4 #define H_REMOVE_RPT 0x1A8 #define H_REGISTER_RPAGES 0x1AC -#define H_DISABLE_AND_GETC 0x1B0 +#define H_DISABLE_AND_GET 0x1B0 #define H_ERROR_DATA 0x1B4 #define H_GET_HCA_INFO 0x1B8 #define H_GET_PERF_COUNT 0x1BC #define H_MANAGE_TRACE 0x1C0 +#define H_GET_CPU_CHARACTERISTICS 0x1C8 #define H_FREE_LOGICAL_LAN_BUFFER 0x1D4 #define H_QUERY_INT_STATE 0x1E4 #define H_POLL_PENDING 0x1D8 #define H_ILLAN_ATTRIBUTES 0x244 +#define H_ADD_LOGICAL_LAN_BUFFERS 0x248 #define H_MODIFY_HEA_QP 0x250 #define H_QUERY_HEA_QP 0x254 #define H_QUERY_HEA 0x258 @@ -257,24 +285,257 @@ #define H_ADD_CONN 0x284 #define H_DEL_CONN 0x288 #define H_JOIN 0x298 +#define H_VASI_SIGNAL 0x2A0 #define H_VASI_STATE 0x2A4 +#define H_VIOCTL 0x2A8 #define H_ENABLE_CRQ 0x2B0 #define H_GET_EM_PARMS 0x2B8 #define H_SET_MPP 0x2D0 #define H_GET_MPP 0x2D4 +#define H_REG_SUB_CRQ 0x2DC #define H_HOME_NODE_ASSOCIATIVITY 0x2EC +#define H_FREE_SUB_CRQ 0x2E0 +#define H_SEND_SUB_CRQ 0x2E4 +#define H_SEND_SUB_CRQ_INDIRECT 0x2E8 #define H_BEST_ENERGY 0x2F4 #define H_XIRR_X 0x2FC #define H_RANDOM 0x300 #define H_COP 0x304 #define H_GET_MPP_X 0x314 #define H_SET_MODE 0x31C -#define MAX_HCALL_OPCODE H_SET_MODE +#define H_BLOCK_REMOVE 0x328 +#define H_CLEAR_HPT 0x358 +#define H_REQUEST_VMC 0x360 +#define H_RESIZE_HPT_PREPARE 0x36C +#define H_RESIZE_HPT_COMMIT 0x370 +#define H_REGISTER_PROC_TBL 0x37C +#define H_SIGNAL_SYS_RESET 0x380 +#define H_ALLOCATE_VAS_WINDOW 0x388 +#define H_MODIFY_VAS_WINDOW 0x38C +#define H_DEALLOCATE_VAS_WINDOW 0x390 +#define H_QUERY_VAS_WINDOW 0x394 +#define H_QUERY_VAS_CAPABILITIES 0x398 +#define H_QUERY_NX_CAPABILITIES 0x39C +#define H_GET_NX_FAULT 0x3A0 +#define H_INT_GET_SOURCE_INFO 0x3A8 +#define H_INT_SET_SOURCE_CONFIG 0x3AC +#define H_INT_GET_SOURCE_CONFIG 0x3B0 +#define H_INT_GET_QUEUE_INFO 0x3B4 +#define H_INT_SET_QUEUE_CONFIG 0x3B8 +#define H_INT_GET_QUEUE_CONFIG 0x3BC +#define H_INT_SET_OS_REPORTING_LINE 0x3C0 +#define H_INT_GET_OS_REPORTING_LINE 0x3C4 +#define H_INT_ESB 0x3C8 +#define H_INT_SYNC 0x3CC +#define H_INT_RESET 0x3D0 +#define H_SCM_READ_METADATA 0x3E4 +#define H_SCM_WRITE_METADATA 0x3E8 +#define H_SCM_BIND_MEM 0x3EC +#define H_SCM_UNBIND_MEM 0x3F0 +#define H_SCM_QUERY_BLOCK_MEM_BINDING 0x3F4 +#define H_SCM_QUERY_LOGICAL_MEM_BINDING 0x3F8 +#define H_SCM_UNBIND_ALL 0x3FC +#define H_SCM_HEALTH 0x400 +#define H_SCM_PERFORMANCE_STATS 0x418 +#define H_PKS_GET_CONFIG 0x41C +#define H_PKS_SET_PASSWORD 0x420 +#define H_PKS_GEN_PASSWORD 0x424 +#define H_PKS_WRITE_OBJECT 0x42C +#define H_PKS_GEN_KEY 0x430 +#define H_PKS_READ_OBJECT 0x434 +#define H_PKS_REMOVE_OBJECT 0x438 +#define H_PKS_CONFIRM_OBJECT_FLUSHED 0x43C +#define H_RPT_INVALIDATE 0x448 +#define H_SCM_FLUSH 0x44C +#define H_GET_ENERGY_SCALE_INFO 0x450 +#define H_PKS_SIGNED_UPDATE 0x454 +#define H_HTM 0x458 +#define H_WATCHDOG 0x45C +#define H_GUEST_GET_CAPABILITIES 0x460 +#define H_GUEST_SET_CAPABILITIES 0x464 +#define H_GUEST_CREATE 0x470 +#define H_GUEST_CREATE_VCPU 0x474 +#define H_GUEST_GET_STATE 0x478 +#define H_GUEST_SET_STATE 0x47C +#define H_GUEST_RUN_VCPU 0x480 +#define H_GUEST_COPY_MEMORY 0x484 +#define H_GUEST_DELETE 0x488 +#define MAX_HCALL_OPCODE H_GUEST_DELETE + +/* Scope args for H_SCM_UNBIND_ALL */ +#define H_UNBIND_SCOPE_ALL (0x1) +#define H_UNBIND_SCOPE_DRC (0x2) + +/* H_VIOCTL functions */ +#define H_GET_VIOA_DUMP_SIZE 0x01 +#define H_GET_VIOA_DUMP 0x02 +#define H_GET_ILLAN_NUM_VLAN_IDS 0x03 +#define H_GET_ILLAN_VLAN_ID_LIST 0x04 +#define H_GET_ILLAN_SWITCH_ID 0x05 +#define H_DISABLE_MIGRATION 0x06 +#define H_ENABLE_MIGRATION 0x07 +#define H_GET_PARTNER_INFO 0x08 +#define H_GET_PARTNER_WWPN_LIST 0x09 +#define H_DISABLE_ALL_VIO_INTS 0x0A +#define H_DISABLE_VIO_INTERRUPT 0x0B +#define H_ENABLE_VIO_INTERRUPT 0x0C +#define H_GET_SESSION_TOKEN 0x19 +#define H_SESSION_ERR_DETECTED 0x1A + /* Platform specific hcalls, used by KVM */ #define H_RTAS 0xf000 -#ifndef __ASSEMBLY__ +/* + * Platform specific hcalls, used by QEMU/SLOF. These are ignored by + * KVM and only kept here so we can identify them during tracing. + */ +#define H_LOGICAL_MEMOP 0xF001 +#define H_CAS 0XF002 +#define H_UPDATE_DT 0XF003 + +/* "Platform specific hcalls", provided by PHYP */ +#define H_GET_24X7_CATALOG_PAGE 0xF078 +#define H_GET_24X7_DATA 0xF07C +#define H_GET_PERF_COUNTER_INFO 0xF080 + +/* Platform-specific hcalls used for nested HV KVM */ +#define H_SET_PARTITION_TABLE 0xF800 +#define H_ENTER_NESTED 0xF804 +#define H_TLB_INVALIDATE 0xF808 +#define H_COPY_TOFROM_GUEST 0xF80C + +/* Flags for H_SVM_PAGE_IN */ +#define H_PAGE_IN_SHARED 0x1 + +/* Platform-specific hcalls used by the Ultravisor */ +#define H_SVM_PAGE_IN 0xEF00 +#define H_SVM_PAGE_OUT 0xEF04 +#define H_SVM_INIT_START 0xEF08 +#define H_SVM_INIT_DONE 0xEF0C +#define H_SVM_INIT_ABORT 0xEF14 + +/* Values for 2nd argument to H_SET_MODE */ +#define H_SET_MODE_RESOURCE_SET_CIABR 1 +#define H_SET_MODE_RESOURCE_SET_DAWR0 2 +#define H_SET_MODE_RESOURCE_ADDR_TRANS_MODE 3 +#define H_SET_MODE_RESOURCE_LE 4 +#define H_SET_MODE_RESOURCE_SET_DAWR1 5 + +/* Values for argument to H_SIGNAL_SYS_RESET */ +#define H_SIGNAL_SYS_RESET_ALL -1 +#define H_SIGNAL_SYS_RESET_ALL_OTHERS -2 +/* >= 0 values are CPU number */ + +/* H_GET_CPU_CHARACTERISTICS return values */ +#define H_CPU_CHAR_SPEC_BAR_ORI31 (1ull << 63) // IBM bit 0 +#define H_CPU_CHAR_BCCTRL_SERIALISED (1ull << 62) // IBM bit 1 +#define H_CPU_CHAR_L1D_FLUSH_ORI30 (1ull << 61) // IBM bit 2 +#define H_CPU_CHAR_L1D_FLUSH_TRIG2 (1ull << 60) // IBM bit 3 +#define H_CPU_CHAR_L1D_THREAD_PRIV (1ull << 59) // IBM bit 4 +#define H_CPU_CHAR_BRANCH_HINTS_HONORED (1ull << 58) // IBM bit 5 +#define H_CPU_CHAR_THREAD_RECONFIG_CTRL (1ull << 57) // IBM bit 6 +#define H_CPU_CHAR_COUNT_CACHE_DISABLED (1ull << 56) // IBM bit 7 +#define H_CPU_CHAR_BCCTR_FLUSH_ASSIST (1ull << 54) // IBM bit 9 +#define H_CPU_CHAR_BCCTR_LINK_FLUSH_ASSIST (1ull << 52) // IBM bit 11 + +#define H_CPU_BEHAV_FAVOUR_SECURITY (1ull << 63) // IBM bit 0 +#define H_CPU_BEHAV_L1D_FLUSH_PR (1ull << 62) // IBM bit 1 +#define H_CPU_BEHAV_BNDS_CHK_SPEC_BAR (1ull << 61) // IBM bit 2 +#define H_CPU_BEHAV_FAVOUR_SECURITY_H (1ull << 60) // IBM bit 3 +#define H_CPU_BEHAV_FLUSH_COUNT_CACHE (1ull << 58) // IBM bit 5 +#define H_CPU_BEHAV_FLUSH_LINK_STACK (1ull << 57) // IBM bit 6 +#define H_CPU_BEHAV_NO_L1D_FLUSH_ENTRY (1ull << 56) // IBM bit 7 +#define H_CPU_BEHAV_NO_L1D_FLUSH_UACCESS (1ull << 55) // IBM bit 8 +#define H_CPU_BEHAV_NO_STF_BARRIER (1ull << 54) // IBM bit 9 + +/* Flag values used in H_REGISTER_PROC_TBL hcall */ +#define PROC_TABLE_OP_MASK 0x18 +#define PROC_TABLE_DEREG 0x10 +#define PROC_TABLE_NEW 0x18 +#define PROC_TABLE_TYPE_MASK 0x06 +#define PROC_TABLE_HPT_SLB 0x00 +#define PROC_TABLE_HPT_PT 0x02 +#define PROC_TABLE_RADIX 0x04 +#define PROC_TABLE_GTSE 0x01 + +/* + * Defines for + * H_RPT_INVALIDATE - Invalidate RPT translation lookaside information. + */ + +/* Type of translation to invalidate (type) */ +#define H_RPTI_TYPE_NESTED 0x0001 /* Invalidate nested guest partition-scope */ +#define H_RPTI_TYPE_TLB 0x0002 /* Invalidate TLB */ +#define H_RPTI_TYPE_PWC 0x0004 /* Invalidate Page Walk Cache */ +/* Invalidate caching of Process Table Entries if H_RPTI_TYPE_NESTED is clear */ +#define H_RPTI_TYPE_PRT 0x0008 +/* Invalidate caching of Partition Table Entries if H_RPTI_TYPE_NESTED is set */ +#define H_RPTI_TYPE_PAT 0x0008 +#define H_RPTI_TYPE_ALL (H_RPTI_TYPE_TLB | H_RPTI_TYPE_PWC | \ + H_RPTI_TYPE_PRT) +#define H_RPTI_TYPE_NESTED_ALL (H_RPTI_TYPE_TLB | H_RPTI_TYPE_PWC | \ + H_RPTI_TYPE_PAT) + +/* Invalidation targets (target) */ +#define H_RPTI_TARGET_CMMU 0x01 /* All virtual processors in the partition */ +#define H_RPTI_TARGET_CMMU_LOCAL 0x02 /* Current virtual processor */ +/* All nest/accelerator agents in use by the partition */ +#define H_RPTI_TARGET_NMMU 0x04 + +/* Page size mask (page sizes) */ +#define H_RPTI_PAGE_4K 0x01 +#define H_RPTI_PAGE_64K 0x02 +#define H_RPTI_PAGE_2M 0x04 +#define H_RPTI_PAGE_1G 0x08 +#define H_RPTI_PAGE_ALL (-1UL) + +/* Flags for H_GUEST_{S,G}_STATE */ +#define H_GUEST_FLAGS_WIDE (1UL << (63 - 0)) +#define H_GUEST_FLAGS_HOST_WIDE (1UL << (63 - 1)) + +/* Flag values used for H_{S,G}SET_GUEST_CAPABILITIES */ +#define H_GUEST_CAP_COPY_MEM (1UL << (63 - 0)) +#define H_GUEST_CAP_POWER9 (1UL << (63 - 1)) +#define H_GUEST_CAP_POWER10 (1UL << (63 - 2)) +#define H_GUEST_CAP_POWER11 (1UL << (63 - 3)) +#define H_GUEST_CAP_BITMAP2 (1UL << (63 - 63)) + +/* + * Defines for H_HTM - Macros for hardware trace macro (HTM) function. + */ +#define H_HTM_FLAGS_HARDWARE_TARGET (1ul << 63) +#define H_HTM_FLAGS_LOGICAL_TARGET (1ul << 62) +#define H_HTM_FLAGS_PROCID_TARGET (1ul << 61) +#define H_HTM_FLAGS_NOWRAP (1ul << 60) + +#define H_HTM_OP_SHIFT (63-15) +#define H_HTM_OP(x) ((unsigned long)(x)<<H_HTM_OP_SHIFT) +#define H_HTM_OP_CAPABILITIES 0x01 +#define H_HTM_OP_STATUS 0x02 +#define H_HTM_OP_SETUP 0x03 +#define H_HTM_OP_CONFIGURE 0x04 +#define H_HTM_OP_START 0x05 +#define H_HTM_OP_STOP 0x06 +#define H_HTM_OP_DECONFIGURE 0x07 +#define H_HTM_OP_DUMP_DETAILS 0x08 +#define H_HTM_OP_DUMP_DATA 0x09 +#define H_HTM_OP_DUMP_SYSMEM_CONF 0x0a +#define H_HTM_OP_DUMP_SYSPROC_CONF 0x0b + +#define H_HTM_TYPE_SHIFT (63-31) +#define H_HTM_TYPE(x) ((unsigned long)(x)<<H_HTM_TYPE_SHIFT) +#define H_HTM_TYPE_NEST 0x01 +#define H_HTM_TYPE_CORE 0x02 +#define H_HTM_TYPE_LLAT 0x03 +#define H_HTM_TYPE_GLOBAL 0xff + +#define H_HTM_TARGET_NODE_INDEX(x) ((unsigned long)(x)<<(63-15)) +#define H_HTM_TARGET_NODAL_CHIP_INDEX(x) ((unsigned long)(x)<<(63-31)) +#define H_HTM_TARGET_CORE_INDEX_ON_CHIP(x) ((unsigned long)(x)<<(63-47)) + +#ifndef __ASSEMBLER__ +#include <linux/types.h> /** * plpar_hcall_norets: - Make a pseries hypervisor call with no return arguments @@ -286,6 +547,9 @@ */ long plpar_hcall_norets(unsigned long opcode, ...); +/* Variant which does not do hcall tracing */ +long plpar_hcall_norets_notrace(unsigned long opcode, ...); + /** * plpar_hcall: - Make a pseries hypervisor call * @opcode: The hypervisor call to make. @@ -297,7 +561,7 @@ long plpar_hcall_norets(unsigned long opcode, ...); * Used for all but the craziest of phyp interfaces (see plpar_hcall9) */ #define PLPAR_HCALL_BUFSIZE 4 -long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...); +long plpar_hcall(unsigned long opcode, unsigned long retbuf[static PLPAR_HCALL_BUFSIZE], ...); /** * plpar_hcall_raw: - Make a hypervisor call without calculating hcall stats @@ -311,7 +575,7 @@ long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...); * plpar_hcall, but plpar_hcall_raw works in real mode and does not * calculate hypervisor call statistics. */ -long plpar_hcall_raw(unsigned long opcode, unsigned long *retbuf, ...); +long plpar_hcall_raw(unsigned long opcode, unsigned long retbuf[static PLPAR_HCALL_BUFSIZE], ...); /** * plpar_hcall9: - Make a pseries hypervisor call with up to 9 return arguments @@ -322,18 +586,13 @@ long plpar_hcall_raw(unsigned long opcode, unsigned long *retbuf, ...); * PLPAR_HCALL9_BUFSIZE to size the return argument buffer. */ #define PLPAR_HCALL9_BUFSIZE 9 -long plpar_hcall9(unsigned long opcode, unsigned long *retbuf, ...); -long plpar_hcall9_raw(unsigned long opcode, unsigned long *retbuf, ...); - -/* For hcall instrumentation. One structure per-hcall, per-CPU */ -struct hcall_stats { - unsigned long num_calls; /* number of calls (on this CPU) */ - unsigned long tb_total; /* total wall time (mftb) of calls. */ - unsigned long purr_total; /* total cpu time (PURR) of calls. */ - unsigned long tb_start; - unsigned long purr_start; -}; -#define HCALL_STAT_ARRAY_SIZE ((MAX_HCALL_OPCODE >> 2) + 1) +long plpar_hcall9(unsigned long opcode, unsigned long retbuf[static PLPAR_HCALL9_BUFSIZE], ...); +long plpar_hcall9_raw(unsigned long opcode, unsigned long retbuf[static PLPAR_HCALL9_BUFSIZE], ...); + +/* pseries hcall tracing */ +extern struct static_key hcall_tracepoint_key; +void __trace_hcall_entry(unsigned long opcode, unsigned long *args); +void __trace_hcall_exit(long opcode, long retval, unsigned long *retbuf); struct hvcall_mpp_data { unsigned long entitled_mem; @@ -348,7 +607,7 @@ struct hvcall_mpp_data { unsigned long backing_mem; }; -int h_get_mpp(struct hvcall_mpp_data *); +long h_get_mpp(struct hvcall_mpp_data *mpp_data); struct hvcall_mpp_x_data { unsigned long coalesced_bytes; @@ -380,36 +639,102 @@ static inline unsigned int get_longbusy_msecs(int longbusy_rc) } } -#ifdef CONFIG_PPC_PSERIES -extern int CMO_PrPSP; -extern int CMO_SecPSP; -extern unsigned long CMO_PageSize; +struct h_cpu_char_result { + u64 character; + u64 behaviour; +}; -static inline int cmo_get_primary_psp(void) -{ - return CMO_PrPSP; -} +/* + * Register state for entering a nested guest with H_ENTER_NESTED. + * New member must be added at the end. + */ +struct hv_guest_state { + u64 version; /* version of this structure layout, must be first */ + u32 lpid; + u32 vcpu_token; + /* These registers are hypervisor privileged (at least for writing) */ + u64 lpcr; + u64 pcr; + u64 amor; + u64 dpdes; + u64 hfscr; + s64 tb_offset; + u64 dawr0; + u64 dawrx0; + u64 ciabr; + u64 hdec_expiry; + u64 purr; + u64 spurr; + u64 ic; + u64 vtb; + u64 hdar; + u64 hdsisr; + u64 heir; + u64 asdr; + /* These are OS privileged but need to be set late in guest entry */ + u64 srr0; + u64 srr1; + u64 sprg[4]; + u64 pidr; + u64 cfar; + u64 ppr; + /* Version 1 ends here */ + u64 dawr1; + u64 dawrx1; + /* Version 2 ends here */ +}; -static inline int cmo_get_secondary_psp(void) -{ - return CMO_SecPSP; -} +/* Latest version of hv_guest_state structure */ +#define HV_GUEST_STATE_VERSION 2 -static inline unsigned long cmo_get_page_size(void) +static inline int hv_guest_state_size(unsigned int version) { - return CMO_PageSize; + switch (version) { + case 1: + return offsetofend(struct hv_guest_state, ppr); + case 2: + return offsetofend(struct hv_guest_state, dawrx1); + default: + return -1; + } } -extern long pSeries_enable_reloc_on_exc(void); -extern long pSeries_disable_reloc_on_exc(void); - -#else - -#define pSeries_enable_reloc_on_exc() do {} while (0) -#define pSeries_disable_reloc_on_exc() do {} while (0) - -#endif /* CONFIG_PPC_PSERIES */ - -#endif /* __ASSEMBLY__ */ +/* + * From the document "H_GetPerformanceCounterInfo Interface" v1.07 + * + * H_GET_PERF_COUNTER_INFO argument + */ +struct hv_get_perf_counter_info_params { + __be32 counter_request; /* I */ + __be32 starting_index; /* IO */ + __be16 secondary_index; /* IO */ + __be16 returned_values; /* O */ + __be32 detail_rc; /* O, only needed when called via *_norets() */ + + /* + * O, size each of counter_value element in bytes, only set for version + * >= 0x3 + */ + __be16 cv_element_size; + + /* I, 0 (zero) for versions < 0x3 */ + __u8 counter_info_version_in; + + /* O, 0 (zero) if version < 0x3. Must be set to 0 when making hcall */ + __u8 counter_info_version_out; + __u8 reserved[0xC]; + __u8 counter_value[]; +} __packed; + +#define HGPCI_REQ_BUFFER_SIZE 4096 +#define HGPCI_MAX_DATA_BYTES \ + (HGPCI_REQ_BUFFER_SIZE - sizeof(struct hv_get_perf_counter_info_params)) + +struct hv_gpci_request_buffer { + struct hv_get_perf_counter_info_params params; + uint8_t bytes[HGPCI_MAX_DATA_BYTES]; +} __packed; + +#endif /* __ASSEMBLER__ */ #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_HVCALL_H */ |