12ea7afb6SJanosch Frank /* 22ea7afb6SJanosch Frank * s390x Ultravisor related definitions 32ea7afb6SJanosch Frank * 42ea7afb6SJanosch Frank * Copyright (c) 2020 IBM Corp 52ea7afb6SJanosch Frank * 62ea7afb6SJanosch Frank * Authors: 72ea7afb6SJanosch Frank * Janosch Frank <frankja@linux.ibm.com> 82ea7afb6SJanosch Frank * 92ea7afb6SJanosch Frank * This code is free software; you can redistribute it and/or modify it 102ea7afb6SJanosch Frank * under the terms of the GNU General Public License version 2. 112ea7afb6SJanosch Frank */ 12*eb5a1bbaSCornelia Huck #ifndef _ASMS390X_UV_H_ 13*eb5a1bbaSCornelia Huck #define _ASMS390X_UV_H_ 142ea7afb6SJanosch Frank 152ea7afb6SJanosch Frank #define UVC_RC_EXECUTED 0x0001 162ea7afb6SJanosch Frank #define UVC_RC_INV_CMD 0x0002 172ea7afb6SJanosch Frank #define UVC_RC_INV_STATE 0x0003 182ea7afb6SJanosch Frank #define UVC_RC_INV_LEN 0x0005 192ea7afb6SJanosch Frank #define UVC_RC_NO_RESUME 0x0007 2083d815a2SJanosch Frank #define UVC_RC_INV_GHANDLE 0x0020 2183d815a2SJanosch Frank #define UVC_RC_INV_CHANDLE 0x0021 222ea7afb6SJanosch Frank 232ea7afb6SJanosch Frank #define UVC_CMD_QUI 0x0001 2483d815a2SJanosch Frank #define UVC_CMD_INIT_UV 0x000f 2583d815a2SJanosch Frank #define UVC_CMD_CREATE_SEC_CONF 0x0100 2683d815a2SJanosch Frank #define UVC_CMD_DESTROY_SEC_CONF 0x0101 2783d815a2SJanosch Frank #define UVC_CMD_CREATE_SEC_CPU 0x0120 2883d815a2SJanosch Frank #define UVC_CMD_DESTROY_SEC_CPU 0x0121 2983d815a2SJanosch Frank #define UVC_CMD_CONV_TO_SEC_STOR 0x0200 3083d815a2SJanosch Frank #define UVC_CMD_CONV_FROM_SEC_STOR 0x0201 3183d815a2SJanosch Frank #define UVC_CMD_SET_SEC_CONF_PARAMS 0x0300 3283d815a2SJanosch Frank #define UVC_CMD_UNPACK_IMG 0x0301 3383d815a2SJanosch Frank #define UVC_CMD_VERIFY_IMG 0x0302 3483d815a2SJanosch Frank #define UVC_CMD_CPU_RESET 0x0310 3583d815a2SJanosch Frank #define UVC_CMD_CPU_RESET_INITIAL 0x0311 3683d815a2SJanosch Frank #define UVC_CMD_PERF_CONF_CLEAR_RESET 0x0320 3783d815a2SJanosch Frank #define UVC_CMD_CPU_RESET_CLEAR 0x0321 3883d815a2SJanosch Frank #define UVC_CMD_CPU_SET_STATE 0x0330 3983d815a2SJanosch Frank #define UVC_CMD_SET_UNSHARED_ALL 0x0340 4083d815a2SJanosch Frank #define UVC_CMD_PIN_PAGE_SHARED 0x0341 4183d815a2SJanosch Frank #define UVC_CMD_UNPIN_PAGE_SHARED 0x0342 422ea7afb6SJanosch Frank #define UVC_CMD_SET_SHARED_ACCESS 0x1000 432ea7afb6SJanosch Frank #define UVC_CMD_REMOVE_SHARED_ACCESS 0x1001 442ea7afb6SJanosch Frank 452ea7afb6SJanosch Frank /* Bits in installed uv calls */ 462ea7afb6SJanosch Frank enum uv_cmds_inst { 472ea7afb6SJanosch Frank BIT_UVC_CMD_QUI = 0, 4883d815a2SJanosch Frank BIT_UVC_CMD_INIT_UV = 1, 4983d815a2SJanosch Frank BIT_UVC_CMD_CREATE_SEC_CONF = 2, 5083d815a2SJanosch Frank BIT_UVC_CMD_DESTROY_SEC_CONF = 3, 5183d815a2SJanosch Frank BIT_UVC_CMD_CREATE_SEC_CPU = 4, 5283d815a2SJanosch Frank BIT_UVC_CMD_DESTROY_SEC_CPU = 5, 5383d815a2SJanosch Frank BIT_UVC_CMD_CONV_TO_SEC_STOR = 6, 5483d815a2SJanosch Frank BIT_UVC_CMD_CONV_FROM_SEC_STOR = 7, 552ea7afb6SJanosch Frank BIT_UVC_CMD_SET_SHARED_ACCESS = 8, 562ea7afb6SJanosch Frank BIT_UVC_CMD_REMOVE_SHARED_ACCESS = 9, 5783d815a2SJanosch Frank BIT_UVC_CMD_SET_SEC_PARMS = 11, 5883d815a2SJanosch Frank BIT_UVC_CMD_UNPACK_IMG = 13, 5983d815a2SJanosch Frank BIT_UVC_CMD_VERIFY_IMG = 14, 6083d815a2SJanosch Frank BIT_UVC_CMD_CPU_RESET = 15, 6183d815a2SJanosch Frank BIT_UVC_CMD_CPU_RESET_INITIAL = 16, 6283d815a2SJanosch Frank BIT_UVC_CMD_CPU_SET_STATE = 17, 6383d815a2SJanosch Frank BIT_UVC_CMD_PREPARE_CLEAR_RESET = 18, 6483d815a2SJanosch Frank BIT_UVC_CMD_CPU_PERFORM_CLEAR_RESET = 19, 6583d815a2SJanosch Frank BIT_UVC_CMD_UNSHARE_ALL = 20, 6683d815a2SJanosch Frank BIT_UVC_CMD_PIN_PAGE_SHARED = 21, 6783d815a2SJanosch Frank BIT_UVC_CMD_UNPIN_PAGE_SHARED = 22, 682ea7afb6SJanosch Frank }; 692ea7afb6SJanosch Frank 702ea7afb6SJanosch Frank struct uv_cb_header { 712ea7afb6SJanosch Frank u16 len; 722ea7afb6SJanosch Frank u16 cmd; /* Command Code */ 732ea7afb6SJanosch Frank u16 rc; /* Response Code */ 742ea7afb6SJanosch Frank u16 rrc; /* Return Reason Code */ 752ea7afb6SJanosch Frank } __attribute__((packed)) __attribute__((aligned(8))); 762ea7afb6SJanosch Frank 7783d815a2SJanosch Frank struct uv_cb_init { 7883d815a2SJanosch Frank struct uv_cb_header header; 7983d815a2SJanosch Frank u64 reserved08[2]; 8083d815a2SJanosch Frank u64 stor_origin; 8183d815a2SJanosch Frank u64 stor_len; 8283d815a2SJanosch Frank u64 reserved28[4]; 8383d815a2SJanosch Frank 8483d815a2SJanosch Frank } __attribute__((packed)) __attribute__((aligned(8))); 8583d815a2SJanosch Frank 862ea7afb6SJanosch Frank struct uv_cb_qui { 872ea7afb6SJanosch Frank struct uv_cb_header header; 882ea7afb6SJanosch Frank u64 reserved08; 892ea7afb6SJanosch Frank u64 inst_calls_list[4]; 9083d815a2SJanosch Frank u64 reserved30[2]; 9183d815a2SJanosch Frank u64 uv_base_stor_len; 9283d815a2SJanosch Frank u64 reserved48; 9383d815a2SJanosch Frank u64 conf_base_phys_stor_len; 9483d815a2SJanosch Frank u64 conf_base_virt_stor_len; 9583d815a2SJanosch Frank u64 conf_virt_var_stor_len; 9683d815a2SJanosch Frank u64 cpu_stor_len; 9783d815a2SJanosch Frank u32 reserved70[3]; 9883d815a2SJanosch Frank u32 max_num_sec_conf; 9983d815a2SJanosch Frank u64 max_guest_stor_addr; 10083d815a2SJanosch Frank u8 reserved88[158 - 136]; 10183d815a2SJanosch Frank u16 max_guest_cpus; 10283d815a2SJanosch Frank u8 reserveda0[200 - 160]; 10383d815a2SJanosch Frank } __attribute__((packed)) __attribute__((aligned(8))); 10483d815a2SJanosch Frank 10583d815a2SJanosch Frank struct uv_cb_cgc { 10683d815a2SJanosch Frank struct uv_cb_header header; 10783d815a2SJanosch Frank u64 reserved08[2]; 10883d815a2SJanosch Frank u64 guest_handle; 10983d815a2SJanosch Frank u64 conf_base_stor_origin; 11083d815a2SJanosch Frank u64 conf_var_stor_origin; 11183d815a2SJanosch Frank u64 reserved30; 11283d815a2SJanosch Frank u64 guest_stor_origin; 11383d815a2SJanosch Frank u64 guest_stor_len; 11483d815a2SJanosch Frank u64 guest_sca; 11583d815a2SJanosch Frank u64 guest_asce; 11683d815a2SJanosch Frank u64 reserved60[5]; 11783d815a2SJanosch Frank } __attribute__((packed)) __attribute__((aligned(8))); 11883d815a2SJanosch Frank 11983d815a2SJanosch Frank struct uv_cb_csc { 12083d815a2SJanosch Frank struct uv_cb_header header; 12183d815a2SJanosch Frank u64 reserved08[2]; 12283d815a2SJanosch Frank u64 cpu_handle; 12383d815a2SJanosch Frank u64 guest_handle; 12483d815a2SJanosch Frank u64 stor_origin; 12583d815a2SJanosch Frank u8 reserved30[6]; 12683d815a2SJanosch Frank u16 num; 12783d815a2SJanosch Frank u64 state_origin; 12883d815a2SJanosch Frank u64 reserved[4]; 12983d815a2SJanosch Frank } __attribute__((packed)) __attribute__((aligned(8))); 13083d815a2SJanosch Frank 13183d815a2SJanosch Frank struct uv_cb_unp { 13283d815a2SJanosch Frank struct uv_cb_header header; 13383d815a2SJanosch Frank u64 reserved08[2]; 13483d815a2SJanosch Frank u64 guest_handle; 13583d815a2SJanosch Frank u64 gaddr; 13683d815a2SJanosch Frank u64 tweak[2]; 13783d815a2SJanosch Frank u64 reserved38[3]; 13883d815a2SJanosch Frank } __attribute__((packed)) __attribute__((aligned(8))); 13983d815a2SJanosch Frank 14083d815a2SJanosch Frank /* 14183d815a2SJanosch Frank * A common UV call struct for the following calls: 14283d815a2SJanosch Frank * Destroy cpu/config 14383d815a2SJanosch Frank * Verify 14483d815a2SJanosch Frank */ 14583d815a2SJanosch Frank struct uv_cb_nodata { 14683d815a2SJanosch Frank struct uv_cb_header header; 14783d815a2SJanosch Frank u64 reserved08[2]; 14883d815a2SJanosch Frank u64 handle; 14983d815a2SJanosch Frank u64 reserved20[4]; 1502ea7afb6SJanosch Frank } __attribute__((packed)) __attribute__((aligned(8))); 1512ea7afb6SJanosch Frank 1522ea7afb6SJanosch Frank struct uv_cb_share { 1532ea7afb6SJanosch Frank struct uv_cb_header header; 1542ea7afb6SJanosch Frank u64 reserved08[3]; 1552ea7afb6SJanosch Frank u64 paddr; 1562ea7afb6SJanosch Frank u64 reserved28; 1572ea7afb6SJanosch Frank } __attribute__((packed)) __attribute__((aligned(8))); 1582ea7afb6SJanosch Frank 15983d815a2SJanosch Frank /* Convert to Secure */ 16083d815a2SJanosch Frank struct uv_cb_cts { 16183d815a2SJanosch Frank struct uv_cb_header header; 16283d815a2SJanosch Frank u64 reserved08[2]; 16383d815a2SJanosch Frank u64 guest_handle; 16483d815a2SJanosch Frank u64 gaddr; 16583d815a2SJanosch Frank } __attribute__((packed)) __attribute__((aligned(8))); 16683d815a2SJanosch Frank 16783d815a2SJanosch Frank /* Convert from Secure / Pin Page Shared */ 16883d815a2SJanosch Frank struct uv_cb_cfs { 16983d815a2SJanosch Frank struct uv_cb_header header; 17083d815a2SJanosch Frank u64 reserved08[2]; 17183d815a2SJanosch Frank u64 paddr; 17283d815a2SJanosch Frank } __attribute__((packed)) __attribute__((aligned(8))); 17383d815a2SJanosch Frank 17483d815a2SJanosch Frank /* Set Secure Config Parameter */ 17583d815a2SJanosch Frank struct uv_cb_ssc { 17683d815a2SJanosch Frank struct uv_cb_header header; 17783d815a2SJanosch Frank u64 reserved08[2]; 17883d815a2SJanosch Frank u64 guest_handle; 17983d815a2SJanosch Frank u64 sec_header_origin; 18083d815a2SJanosch Frank u32 sec_header_len; 18183d815a2SJanosch Frank u32 reserved2c; 18283d815a2SJanosch Frank u64 reserved30[4]; 18383d815a2SJanosch Frank } __attribute__((packed)) __attribute__((aligned(8))); 18483d815a2SJanosch Frank 18588fb0e5dSJanosch Frank static inline int uv_call_once(unsigned long r1, unsigned long r2) 1862ea7afb6SJanosch Frank { 1872ea7afb6SJanosch Frank int cc; 1882ea7afb6SJanosch Frank 1892ea7afb6SJanosch Frank asm volatile( 1902ea7afb6SJanosch Frank "0: .insn rrf,0xB9A40000,%[r1],%[r2],0,0\n" 1912ea7afb6SJanosch Frank " ipm %[cc]\n" 1922ea7afb6SJanosch Frank " srl %[cc],28\n" 1932ea7afb6SJanosch Frank : [cc] "=d" (cc) 1942ea7afb6SJanosch Frank : [r1] "a" (r1), [r2] "a" (r2) 1952ea7afb6SJanosch Frank : "memory", "cc"); 1962ea7afb6SJanosch Frank return cc; 1972ea7afb6SJanosch Frank } 1982ea7afb6SJanosch Frank 19988fb0e5dSJanosch Frank static inline int uv_call(unsigned long r1, unsigned long r2) 20088fb0e5dSJanosch Frank { 20188fb0e5dSJanosch Frank int cc; 20288fb0e5dSJanosch Frank 20388fb0e5dSJanosch Frank /* 20488fb0e5dSJanosch Frank * CC 2 and 3 tell us to re-execute because the instruction 20588fb0e5dSJanosch Frank * hasn't yet finished. 20688fb0e5dSJanosch Frank */ 20788fb0e5dSJanosch Frank do { 20888fb0e5dSJanosch Frank cc = uv_call_once(r1, r2); 20988fb0e5dSJanosch Frank } while (cc > 1); 21088fb0e5dSJanosch Frank 21188fb0e5dSJanosch Frank return cc; 21288fb0e5dSJanosch Frank } 21388fb0e5dSJanosch Frank 214027c8015SPierre Morel static inline int share(unsigned long addr, u16 cmd) 215027c8015SPierre Morel { 216027c8015SPierre Morel struct uv_cb_share uvcb = { 217027c8015SPierre Morel .header.cmd = cmd, 218027c8015SPierre Morel .header.len = sizeof(uvcb), 219027c8015SPierre Morel .paddr = addr 220027c8015SPierre Morel }; 221027c8015SPierre Morel int cc; 222027c8015SPierre Morel 223027c8015SPierre Morel cc = uv_call(0, (u64)&uvcb); 224027c8015SPierre Morel if (!cc && uvcb.header.rc == UVC_RC_EXECUTED) 225027c8015SPierre Morel return 0; 226027c8015SPierre Morel 227027c8015SPierre Morel report_info("uv_call: cmd %04x cc %d response code: %04x", cc, cmd, 228027c8015SPierre Morel uvcb.header.rc); 229027c8015SPierre Morel return -1; 230027c8015SPierre Morel } 231027c8015SPierre Morel 232027c8015SPierre Morel /* 233027c8015SPierre Morel * Guest 2 request to the Ultravisor to make a page shared with the 234027c8015SPierre Morel * hypervisor for IO. 235027c8015SPierre Morel * 236027c8015SPierre Morel * @addr: Real or absolute address of the page to be shared 237027c8015SPierre Morel */ 238027c8015SPierre Morel static inline int uv_set_shared(unsigned long addr) 239027c8015SPierre Morel { 240027c8015SPierre Morel return share(addr, UVC_CMD_SET_SHARED_ACCESS); 241027c8015SPierre Morel } 242027c8015SPierre Morel 243027c8015SPierre Morel /* 244027c8015SPierre Morel * Guest 2 request to the Ultravisor to make a page unshared. 245027c8015SPierre Morel * 246027c8015SPierre Morel * @addr: Real or absolute address of the page to be unshared 247027c8015SPierre Morel */ 248027c8015SPierre Morel static inline int uv_remove_shared(unsigned long addr) 249027c8015SPierre Morel { 250027c8015SPierre Morel return share(addr, UVC_CMD_REMOVE_SHARED_ACCESS); 251027c8015SPierre Morel } 252027c8015SPierre Morel 25383d815a2SJanosch Frank struct uv_cb_cpu_set_state { 25483d815a2SJanosch Frank struct uv_cb_header header; 25583d815a2SJanosch Frank u64 reserved08[2]; 25683d815a2SJanosch Frank u64 cpu_handle; 25783d815a2SJanosch Frank u8 reserved20[7]; 25883d815a2SJanosch Frank u8 state; 25983d815a2SJanosch Frank u64 reserved28[5]; 26083d815a2SJanosch Frank }; 26183d815a2SJanosch Frank 26283d815a2SJanosch Frank #define PV_CPU_STATE_OPR 1 26383d815a2SJanosch Frank #define PV_CPU_STATE_STP 2 26483d815a2SJanosch Frank #define PV_CPU_STATE_CHKSTP 3 26583d815a2SJanosch Frank #define PV_CPU_STATE_OPR_LOAD 5 26683d815a2SJanosch Frank 2672ea7afb6SJanosch Frank #endif 268