mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
60f0a643aa
A secure guest will share some of its pages with hypervisor (Eg. virtio bounce buffers etc). Support sharing of pages between hypervisor and ultravisor. Shared page is reachable via both HV and UV side page tables. Once a secure page is converted to shared page, the device page that represents the secure page is unmapped from the HV side page tables. Signed-off-by: Bharata B Rao <bharata@linux.ibm.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
532 lines
17 KiB
C
532 lines
17 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_POWERPC_HVCALL_H
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#define _ASM_POWERPC_HVCALL_H
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#ifdef __KERNEL__
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#define HVSC .long 0x44000022
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#define H_SUCCESS 0
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#define H_BUSY 1 /* Hardware busy -- retry later */
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#define H_CLOSED 2 /* Resource closed */
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#define H_NOT_AVAILABLE 3
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#define H_CONSTRAINED 4 /* Resource request constrained to max allowed */
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#define H_PARTIAL 5
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#define H_IN_PROGRESS 14 /* Kind of like busy */
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#define H_PAGE_REGISTERED 15
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#define H_PARTIAL_STORE 16
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#define H_PENDING 17 /* returned from H_POLL_PENDING */
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#define H_CONTINUE 18 /* Returned from H_Join on success */
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#define H_LONG_BUSY_START_RANGE 9900 /* Start of long busy range */
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#define H_LONG_BUSY_ORDER_1_MSEC 9900 /* Long busy, hint that 1msec \
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is a good time to retry */
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#define H_LONG_BUSY_ORDER_10_MSEC 9901 /* Long busy, hint that 10msec \
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is a good time to retry */
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#define H_LONG_BUSY_ORDER_100_MSEC 9902 /* Long busy, hint that 100msec \
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is a good time to retry */
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#define H_LONG_BUSY_ORDER_1_SEC 9903 /* Long busy, hint that 1sec \
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is a good time to retry */
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#define H_LONG_BUSY_ORDER_10_SEC 9904 /* Long busy, hint that 10sec \
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is a good time to retry */
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#define H_LONG_BUSY_ORDER_100_SEC 9905 /* Long busy, hint that 100sec \
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is a good time to retry */
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#define H_LONG_BUSY_END_RANGE 9905 /* End of long busy range */
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/* Internal value used in book3s_hv kvm support; not returned to guests */
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#define H_TOO_HARD 9999
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#define H_HARDWARE -1 /* Hardware error */
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#define H_FUNCTION -2 /* Function not supported */
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#define H_PRIVILEGE -3 /* Caller not privileged */
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#define H_PARAMETER -4 /* Parameter invalid, out-of-range or conflicting */
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#define H_BAD_MODE -5 /* Illegal msr value */
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#define H_PTEG_FULL -6 /* PTEG is full */
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#define H_NOT_FOUND -7 /* PTE was not found" */
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#define H_RESERVED_DABR -8 /* DABR address is reserved by the hypervisor on this processor" */
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#define H_NO_MEM -9
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#define H_AUTHORITY -10
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#define H_PERMISSION -11
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#define H_DROPPED -12
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#define H_SOURCE_PARM -13
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#define H_DEST_PARM -14
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#define H_REMOTE_PARM -15
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#define H_RESOURCE -16
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#define H_ADAPTER_PARM -17
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#define H_RH_PARM -18
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#define H_RCQ_PARM -19
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#define H_SCQ_PARM -20
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#define H_EQ_PARM -21
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#define H_RT_PARM -22
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#define H_ST_PARM -23
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#define H_SIGT_PARM -24
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#define H_TOKEN_PARM -25
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#define H_MLENGTH_PARM -27
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#define H_MEM_PARM -28
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#define H_MEM_ACCESS_PARM -29
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#define H_ATTR_PARM -30
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#define H_PORT_PARM -31
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#define H_MCG_PARM -32
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#define H_VL_PARM -33
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#define H_TSIZE_PARM -34
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#define H_TRACE_PARM -35
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#define H_MASK_PARM -37
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#define H_MCG_FULL -38
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#define H_ALIAS_EXIST -39
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#define H_P_COUNTER -40
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#define H_TABLE_FULL -41
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#define H_ALT_TABLE -42
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#define H_MR_CONDITION -43
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#define H_NOT_ENOUGH_RESOURCES -44
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#define H_R_STATE -45
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#define H_RESCINDED -46
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#define H_P2 -55
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#define H_P3 -56
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#define H_P4 -57
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#define H_P5 -58
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#define H_P6 -59
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#define H_P7 -60
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#define H_P8 -61
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#define H_P9 -62
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#define H_TOO_BIG -64
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#define H_UNSUPPORTED -67
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#define H_OVERLAP -68
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#define H_INTERRUPT -69
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#define H_BAD_DATA -70
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#define H_NOT_ACTIVE -71
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#define H_SG_LIST -72
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#define H_OP_MODE -73
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#define H_COP_HW -74
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#define H_STATE -75
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#define H_UNSUPPORTED_FLAG_START -256
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#define H_UNSUPPORTED_FLAG_END -511
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#define H_MULTI_THREADS_ACTIVE -9005
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#define H_OUTSTANDING_COP_OPS -9006
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/* Long Busy is a condition that can be returned by the firmware
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* when a call cannot be completed now, but the identical call
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* should be retried later. This prevents calls blocking in the
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* firmware for long periods of time. Annoyingly the firmware can return
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* a range of return codes, hinting at how long we should wait before
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* retrying. If you don't care for the hint, the macro below is a good
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* way to check for the long_busy return codes
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*/
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#define H_IS_LONG_BUSY(x) ((x >= H_LONG_BUSY_START_RANGE) \
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&& (x <= H_LONG_BUSY_END_RANGE))
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/* Flags */
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#define H_LARGE_PAGE (1UL<<(63-16))
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#define H_EXACT (1UL<<(63-24)) /* Use exact PTE or return H_PTEG_FULL */
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#define H_R_XLATE (1UL<<(63-25)) /* include a valid logical page num in the pte if the valid bit is set */
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#define H_READ_4 (1UL<<(63-26)) /* Return 4 PTEs */
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#define H_PAGE_STATE_CHANGE (1UL<<(63-28))
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#define H_PAGE_UNUSED ((1UL<<(63-29)) | (1UL<<(63-30)))
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#define H_PAGE_SET_UNUSED (H_PAGE_STATE_CHANGE | H_PAGE_UNUSED)
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#define H_PAGE_SET_LOANED (H_PAGE_SET_UNUSED | (1UL<<(63-31)))
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#define H_PAGE_SET_ACTIVE H_PAGE_STATE_CHANGE
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#define H_AVPN (1UL<<(63-32)) /* An avpn is provided as a sanity test */
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#define H_ANDCOND (1UL<<(63-33))
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#define H_LOCAL (1UL<<(63-35))
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#define H_ICACHE_INVALIDATE (1UL<<(63-40)) /* icbi, etc. (ignored for IO pages) */
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#define H_ICACHE_SYNCHRONIZE (1UL<<(63-41)) /* dcbst, icbi, etc (ignored for IO pages */
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#define H_COALESCE_CAND (1UL<<(63-42)) /* page is a good candidate for coalescing */
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#define H_ZERO_PAGE (1UL<<(63-48)) /* zero the page before mapping (ignored for IO pages) */
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#define H_COPY_PAGE (1UL<<(63-49))
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#define H_N (1UL<<(63-61))
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#define H_PP1 (1UL<<(63-62))
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#define H_PP2 (1UL<<(63-63))
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/* Flags for H_REGISTER_VPA subfunction field */
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#define H_VPA_FUNC_SHIFT (63-18) /* Bit posn of subfunction code */
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#define H_VPA_FUNC_MASK 7UL
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#define H_VPA_REG_VPA 1UL /* Register Virtual Processor Area */
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#define H_VPA_REG_DTL 2UL /* Register Dispatch Trace Log */
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#define H_VPA_REG_SLB 3UL /* Register SLB shadow buffer */
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#define H_VPA_DEREG_VPA 5UL /* Deregister Virtual Processor Area */
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#define H_VPA_DEREG_DTL 6UL /* Deregister Dispatch Trace Log */
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#define H_VPA_DEREG_SLB 7UL /* Deregister SLB shadow buffer */
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/* VASI States */
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#define H_VASI_INVALID 0
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#define H_VASI_ENABLED 1
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#define H_VASI_ABORTED 2
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#define H_VASI_SUSPENDING 3
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#define H_VASI_SUSPENDED 4
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#define H_VASI_RESUMED 5
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#define H_VASI_COMPLETED 6
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/* Each control block has to be on a 4K boundary */
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#define H_CB_ALIGNMENT 4096
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/* pSeries hypervisor opcodes */
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#define H_REMOVE 0x04
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#define H_ENTER 0x08
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#define H_READ 0x0c
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#define H_CLEAR_MOD 0x10
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#define H_CLEAR_REF 0x14
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#define H_PROTECT 0x18
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#define H_GET_TCE 0x1c
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#define H_PUT_TCE 0x20
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#define H_SET_SPRG0 0x24
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#define H_SET_DABR 0x28
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#define H_PAGE_INIT 0x2c
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#define H_SET_ASR 0x30
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#define H_ASR_ON 0x34
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#define H_ASR_OFF 0x38
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#define H_LOGICAL_CI_LOAD 0x3c
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#define H_LOGICAL_CI_STORE 0x40
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#define H_LOGICAL_CACHE_LOAD 0x44
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#define H_LOGICAL_CACHE_STORE 0x48
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#define H_LOGICAL_ICBI 0x4c
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#define H_LOGICAL_DCBF 0x50
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#define H_GET_TERM_CHAR 0x54
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#define H_PUT_TERM_CHAR 0x58
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#define H_REAL_TO_LOGICAL 0x5c
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#define H_HYPERVISOR_DATA 0x60
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#define H_EOI 0x64
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#define H_CPPR 0x68
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#define H_IPI 0x6c
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#define H_IPOLL 0x70
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#define H_XIRR 0x74
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#define H_PERFMON 0x7c
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#define H_MIGRATE_DMA 0x78
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#define H_REGISTER_VPA 0xDC
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#define H_CEDE 0xE0
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#define H_CONFER 0xE4
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#define H_PROD 0xE8
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#define H_GET_PPP 0xEC
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#define H_SET_PPP 0xF0
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#define H_PURR 0xF4
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#define H_PIC 0xF8
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#define H_REG_CRQ 0xFC
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#define H_FREE_CRQ 0x100
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#define H_VIO_SIGNAL 0x104
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#define H_SEND_CRQ 0x108
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#define H_COPY_RDMA 0x110
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#define H_REGISTER_LOGICAL_LAN 0x114
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#define H_FREE_LOGICAL_LAN 0x118
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#define H_ADD_LOGICAL_LAN_BUFFER 0x11C
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#define H_SEND_LOGICAL_LAN 0x120
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#define H_BULK_REMOVE 0x124
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#define H_MULTICAST_CTRL 0x130
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#define H_SET_XDABR 0x134
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#define H_STUFF_TCE 0x138
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#define H_PUT_TCE_INDIRECT 0x13C
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#define H_CHANGE_LOGICAL_LAN_MAC 0x14C
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#define H_VTERM_PARTNER_INFO 0x150
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#define H_REGISTER_VTERM 0x154
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#define H_FREE_VTERM 0x158
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#define H_RESET_EVENTS 0x15C
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#define H_ALLOC_RESOURCE 0x160
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#define H_FREE_RESOURCE 0x164
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#define H_MODIFY_QP 0x168
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#define H_QUERY_QP 0x16C
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#define H_REREGISTER_PMR 0x170
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#define H_REGISTER_SMR 0x174
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#define H_QUERY_MR 0x178
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#define H_QUERY_MW 0x17C
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#define H_QUERY_HCA 0x180
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#define H_QUERY_PORT 0x184
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#define H_MODIFY_PORT 0x188
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#define H_DEFINE_AQP1 0x18C
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#define H_GET_TRACE_BUFFER 0x190
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#define H_DEFINE_AQP0 0x194
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#define H_RESIZE_MR 0x198
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#define H_ATTACH_MCQP 0x19C
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#define H_DETACH_MCQP 0x1A0
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#define H_CREATE_RPT 0x1A4
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#define H_REMOVE_RPT 0x1A8
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#define H_REGISTER_RPAGES 0x1AC
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#define H_DISABLE_AND_GETC 0x1B0
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#define H_ERROR_DATA 0x1B4
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#define H_GET_HCA_INFO 0x1B8
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#define H_GET_PERF_COUNT 0x1BC
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#define H_MANAGE_TRACE 0x1C0
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#define H_GET_CPU_CHARACTERISTICS 0x1C8
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#define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
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#define H_QUERY_INT_STATE 0x1E4
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#define H_POLL_PENDING 0x1D8
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#define H_ILLAN_ATTRIBUTES 0x244
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#define H_MODIFY_HEA_QP 0x250
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#define H_QUERY_HEA_QP 0x254
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#define H_QUERY_HEA 0x258
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#define H_QUERY_HEA_PORT 0x25C
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#define H_MODIFY_HEA_PORT 0x260
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#define H_REG_BCMC 0x264
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#define H_DEREG_BCMC 0x268
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#define H_REGISTER_HEA_RPAGES 0x26C
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#define H_DISABLE_AND_GET_HEA 0x270
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#define H_GET_HEA_INFO 0x274
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#define H_ALLOC_HEA_RESOURCE 0x278
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#define H_ADD_CONN 0x284
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#define H_DEL_CONN 0x288
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#define H_JOIN 0x298
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#define H_VASI_STATE 0x2A4
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#define H_VIOCTL 0x2A8
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#define H_ENABLE_CRQ 0x2B0
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#define H_GET_EM_PARMS 0x2B8
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#define H_SET_MPP 0x2D0
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#define H_GET_MPP 0x2D4
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#define H_REG_SUB_CRQ 0x2DC
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#define H_HOME_NODE_ASSOCIATIVITY 0x2EC
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#define H_FREE_SUB_CRQ 0x2E0
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#define H_SEND_SUB_CRQ 0x2E4
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#define H_SEND_SUB_CRQ_INDIRECT 0x2E8
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#define H_BEST_ENERGY 0x2F4
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#define H_XIRR_X 0x2FC
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#define H_RANDOM 0x300
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#define H_COP 0x304
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#define H_GET_MPP_X 0x314
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#define H_SET_MODE 0x31C
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#define H_BLOCK_REMOVE 0x328
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#define H_CLEAR_HPT 0x358
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#define H_REQUEST_VMC 0x360
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#define H_RESIZE_HPT_PREPARE 0x36C
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#define H_RESIZE_HPT_COMMIT 0x370
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#define H_REGISTER_PROC_TBL 0x37C
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#define H_SIGNAL_SYS_RESET 0x380
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#define H_INT_GET_SOURCE_INFO 0x3A8
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#define H_INT_SET_SOURCE_CONFIG 0x3AC
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#define H_INT_GET_SOURCE_CONFIG 0x3B0
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#define H_INT_GET_QUEUE_INFO 0x3B4
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#define H_INT_SET_QUEUE_CONFIG 0x3B8
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#define H_INT_GET_QUEUE_CONFIG 0x3BC
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#define H_INT_SET_OS_REPORTING_LINE 0x3C0
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#define H_INT_GET_OS_REPORTING_LINE 0x3C4
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#define H_INT_ESB 0x3C8
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#define H_INT_SYNC 0x3CC
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#define H_INT_RESET 0x3D0
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#define H_SCM_READ_METADATA 0x3E4
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#define H_SCM_WRITE_METADATA 0x3E8
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#define H_SCM_BIND_MEM 0x3EC
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#define H_SCM_UNBIND_MEM 0x3F0
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#define H_SCM_QUERY_BLOCK_MEM_BINDING 0x3F4
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#define H_SCM_QUERY_LOGICAL_MEM_BINDING 0x3F8
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#define H_SCM_UNBIND_ALL 0x3FC
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#define H_SCM_HEALTH 0x400
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#define H_SCM_PERFORMANCE_STATS 0x418
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#define MAX_HCALL_OPCODE H_SCM_PERFORMANCE_STATS
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/* Scope args for H_SCM_UNBIND_ALL */
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#define H_UNBIND_SCOPE_ALL (0x1)
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#define H_UNBIND_SCOPE_DRC (0x2)
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/* H_VIOCTL functions */
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#define H_GET_VIOA_DUMP_SIZE 0x01
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#define H_GET_VIOA_DUMP 0x02
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#define H_GET_ILLAN_NUM_VLAN_IDS 0x03
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#define H_GET_ILLAN_VLAN_ID_LIST 0x04
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#define H_GET_ILLAN_SWITCH_ID 0x05
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#define H_DISABLE_MIGRATION 0x06
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#define H_ENABLE_MIGRATION 0x07
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#define H_GET_PARTNER_INFO 0x08
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#define H_GET_PARTNER_WWPN_LIST 0x09
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#define H_DISABLE_ALL_VIO_INTS 0x0A
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#define H_DISABLE_VIO_INTERRUPT 0x0B
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#define H_ENABLE_VIO_INTERRUPT 0x0C
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#define H_GET_SESSION_TOKEN 0x19
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#define H_SESSION_ERR_DETECTED 0x1A
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/* Platform specific hcalls, used by KVM */
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#define H_RTAS 0xf000
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/* "Platform specific hcalls", provided by PHYP */
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#define H_GET_24X7_CATALOG_PAGE 0xF078
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#define H_GET_24X7_DATA 0xF07C
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#define H_GET_PERF_COUNTER_INFO 0xF080
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/* Platform-specific hcalls used for nested HV KVM */
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#define H_SET_PARTITION_TABLE 0xF800
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#define H_ENTER_NESTED 0xF804
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#define H_TLB_INVALIDATE 0xF808
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#define H_COPY_TOFROM_GUEST 0xF80C
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/* Flags for H_SVM_PAGE_IN */
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#define H_PAGE_IN_SHARED 0x1
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/* Platform-specific hcalls used by the Ultravisor */
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#define H_SVM_PAGE_IN 0xEF00
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#define H_SVM_PAGE_OUT 0xEF04
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#define H_SVM_INIT_START 0xEF08
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#define H_SVM_INIT_DONE 0xEF0C
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/* Values for 2nd argument to H_SET_MODE */
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#define H_SET_MODE_RESOURCE_SET_CIABR 1
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#define H_SET_MODE_RESOURCE_SET_DAWR 2
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#define H_SET_MODE_RESOURCE_ADDR_TRANS_MODE 3
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#define H_SET_MODE_RESOURCE_LE 4
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/* Values for argument to H_SIGNAL_SYS_RESET */
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#define H_SIGNAL_SYS_RESET_ALL -1
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#define H_SIGNAL_SYS_RESET_ALL_OTHERS -2
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/* >= 0 values are CPU number */
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/* H_GET_CPU_CHARACTERISTICS return values */
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#define H_CPU_CHAR_SPEC_BAR_ORI31 (1ull << 63) // IBM bit 0
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#define H_CPU_CHAR_BCCTRL_SERIALISED (1ull << 62) // IBM bit 1
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#define H_CPU_CHAR_L1D_FLUSH_ORI30 (1ull << 61) // IBM bit 2
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#define H_CPU_CHAR_L1D_FLUSH_TRIG2 (1ull << 60) // IBM bit 3
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#define H_CPU_CHAR_L1D_THREAD_PRIV (1ull << 59) // IBM bit 4
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#define H_CPU_CHAR_BRANCH_HINTS_HONORED (1ull << 58) // IBM bit 5
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#define H_CPU_CHAR_THREAD_RECONFIG_CTRL (1ull << 57) // IBM bit 6
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#define H_CPU_CHAR_COUNT_CACHE_DISABLED (1ull << 56) // IBM bit 7
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#define H_CPU_CHAR_BCCTR_FLUSH_ASSIST (1ull << 54) // IBM bit 9
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#define H_CPU_BEHAV_FAVOUR_SECURITY (1ull << 63) // IBM bit 0
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#define H_CPU_BEHAV_L1D_FLUSH_PR (1ull << 62) // IBM bit 1
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#define H_CPU_BEHAV_BNDS_CHK_SPEC_BAR (1ull << 61) // IBM bit 2
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#define H_CPU_BEHAV_FLUSH_COUNT_CACHE (1ull << 58) // IBM bit 5
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/* Flag values used in H_REGISTER_PROC_TBL hcall */
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#define PROC_TABLE_OP_MASK 0x18
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#define PROC_TABLE_DEREG 0x10
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#define PROC_TABLE_NEW 0x18
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#define PROC_TABLE_TYPE_MASK 0x06
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#define PROC_TABLE_HPT_SLB 0x00
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#define PROC_TABLE_HPT_PT 0x02
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#define PROC_TABLE_RADIX 0x04
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#define PROC_TABLE_GTSE 0x01
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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/**
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* plpar_hcall_norets: - Make a pseries hypervisor call with no return arguments
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* @opcode: The hypervisor call to make.
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*
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* This call supports up to 7 arguments and only returns the status of
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* the hcall. Use this version where possible, its slightly faster than
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* the other plpar_hcalls.
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*/
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long plpar_hcall_norets(unsigned long opcode, ...);
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/**
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* plpar_hcall: - Make a pseries hypervisor call
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* @opcode: The hypervisor call to make.
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* @retbuf: Buffer to store up to 4 return arguments in.
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*
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* This call supports up to 6 arguments and 4 return arguments. Use
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* PLPAR_HCALL_BUFSIZE to size the return argument buffer.
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*
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* Used for all but the craziest of phyp interfaces (see plpar_hcall9)
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*/
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#define PLPAR_HCALL_BUFSIZE 4
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long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...);
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/**
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* plpar_hcall_raw: - Make a hypervisor call without calculating hcall stats
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* @opcode: The hypervisor call to make.
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* @retbuf: Buffer to store up to 4 return arguments in.
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*
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* This call supports up to 6 arguments and 4 return arguments. Use
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* PLPAR_HCALL_BUFSIZE to size the return argument buffer.
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*
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* Used when phyp interface needs to be called in real mode. Similar to
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* plpar_hcall, but plpar_hcall_raw works in real mode and does not
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* calculate hypervisor call statistics.
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*/
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long plpar_hcall_raw(unsigned long opcode, unsigned long *retbuf, ...);
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/**
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* plpar_hcall9: - Make a pseries hypervisor call with up to 9 return arguments
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* @opcode: The hypervisor call to make.
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* @retbuf: Buffer to store up to 9 return arguments in.
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*
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* This call supports up to 9 arguments and 9 return arguments. Use
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* PLPAR_HCALL9_BUFSIZE to size the return argument buffer.
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*/
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#define PLPAR_HCALL9_BUFSIZE 9
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long plpar_hcall9(unsigned long opcode, unsigned long *retbuf, ...);
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long plpar_hcall9_raw(unsigned long opcode, unsigned long *retbuf, ...);
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struct hvcall_mpp_data {
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unsigned long entitled_mem;
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unsigned long mapped_mem;
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unsigned short group_num;
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unsigned short pool_num;
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unsigned char mem_weight;
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unsigned char unallocated_mem_weight;
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unsigned long unallocated_entitlement; /* value in bytes */
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unsigned long pool_size;
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signed long loan_request;
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unsigned long backing_mem;
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};
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int h_get_mpp(struct hvcall_mpp_data *);
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struct hvcall_mpp_x_data {
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unsigned long coalesced_bytes;
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unsigned long pool_coalesced_bytes;
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unsigned long pool_purr_cycles;
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unsigned long pool_spurr_cycles;
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unsigned long reserved[3];
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};
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int h_get_mpp_x(struct hvcall_mpp_x_data *mpp_x_data);
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static inline unsigned int get_longbusy_msecs(int longbusy_rc)
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{
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switch (longbusy_rc) {
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case H_LONG_BUSY_ORDER_1_MSEC:
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return 1;
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case H_LONG_BUSY_ORDER_10_MSEC:
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return 10;
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case H_LONG_BUSY_ORDER_100_MSEC:
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return 100;
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case H_LONG_BUSY_ORDER_1_SEC:
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return 1000;
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case H_LONG_BUSY_ORDER_10_SEC:
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return 10000;
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case H_LONG_BUSY_ORDER_100_SEC:
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return 100000;
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default:
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return 1;
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}
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}
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struct h_cpu_char_result {
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u64 character;
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u64 behaviour;
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};
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/* Register state for entering a nested guest with H_ENTER_NESTED */
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struct hv_guest_state {
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u64 version; /* version of this structure layout */
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u32 lpid;
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u32 vcpu_token;
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/* These registers are hypervisor privileged (at least for writing) */
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u64 lpcr;
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u64 pcr;
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u64 amor;
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u64 dpdes;
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u64 hfscr;
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s64 tb_offset;
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u64 dawr0;
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u64 dawrx0;
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|
u64 ciabr;
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|
u64 hdec_expiry;
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u64 purr;
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u64 spurr;
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u64 ic;
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|
u64 vtb;
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|
u64 hdar;
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|
u64 hdsisr;
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|
u64 heir;
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|
u64 asdr;
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|
/* These are OS privileged but need to be set late in guest entry */
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u64 srr0;
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u64 srr1;
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u64 sprg[4];
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u64 pidr;
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u64 cfar;
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u64 ppr;
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};
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/* Latest version of hv_guest_state structure */
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#define HV_GUEST_STATE_VERSION 1
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#endif /* __ASSEMBLY__ */
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#endif /* __KERNEL__ */
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#endif /* _ASM_POWERPC_HVCALL_H */
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