/* SPDX-License-Identifier: GPL-2.0 */ /* * AMD SEV header common between the guest and the hypervisor. * * Author: Brijesh Singh <[email protected]> */ #ifndef __ASM_X86_SEV_COMMON_H #define __ASM_X86_SEV_COMMON_H #define GHCB_MSR_INFO_POS … #define GHCB_DATA_LOW … #define GHCB_MSR_INFO_MASK … #define GHCB_DATA(v) … /* SEV Information Request/Response */ #define GHCB_MSR_SEV_INFO_RESP … #define GHCB_MSR_SEV_INFO_REQ … #define GHCB_MSR_SEV_INFO(_max, _min, _cbit) … #define GHCB_MSR_INFO(v) … #define GHCB_MSR_PROTO_MAX(v) … #define GHCB_MSR_PROTO_MIN(v) … /* CPUID Request/Response */ #define GHCB_MSR_CPUID_REQ … #define GHCB_MSR_CPUID_RESP … #define GHCB_MSR_CPUID_FUNC_POS … #define GHCB_MSR_CPUID_FUNC_MASK … #define GHCB_MSR_CPUID_VALUE_POS … #define GHCB_MSR_CPUID_VALUE_MASK … #define GHCB_MSR_CPUID_REG_POS … #define GHCB_MSR_CPUID_REG_MASK … #define GHCB_CPUID_REQ_EAX … #define GHCB_CPUID_REQ_EBX … #define GHCB_CPUID_REQ_ECX … #define GHCB_CPUID_REQ_EDX … #define GHCB_CPUID_REQ(fn, reg) … /* AP Reset Hold */ #define GHCB_MSR_AP_RESET_HOLD_REQ … #define GHCB_MSR_AP_RESET_HOLD_RESP … #define GHCB_MSR_AP_RESET_HOLD_RESULT_POS … #define GHCB_MSR_AP_RESET_HOLD_RESULT_MASK … /* Preferred GHCB GPA Request */ #define GHCB_MSR_PREF_GPA_REQ … #define GHCB_MSR_GPA_VALUE_POS … #define GHCB_MSR_GPA_VALUE_MASK … #define GHCB_MSR_PREF_GPA_RESP … #define GHCB_MSR_PREF_GPA_NONE … /* GHCB GPA Register */ #define GHCB_MSR_REG_GPA_REQ … #define GHCB_MSR_REG_GPA_REQ_VAL(v) … #define GHCB_MSR_REG_GPA_RESP … #define GHCB_MSR_REG_GPA_RESP_VAL(v) … /* * SNP Page State Change Operation * * GHCBData[55:52] - Page operation: * 0x0001 Page assignment, Private * 0x0002 Page assignment, Shared */ enum psc_op { … }; #define GHCB_MSR_PSC_REQ … #define GHCB_MSR_PSC_REQ_GFN(gfn, op) … #define GHCB_MSR_PSC_REQ_TO_GFN(msr) … #define GHCB_MSR_PSC_REQ_TO_OP(msr) … #define GHCB_MSR_PSC_RESP … #define GHCB_MSR_PSC_RESP_VAL(val) … /* Set highest bit as a generic error response */ #define GHCB_MSR_PSC_RESP_ERROR … /* GHCB Run at VMPL Request/Response */ #define GHCB_MSR_VMPL_REQ … #define GHCB_MSR_VMPL_REQ_LEVEL(v) … #define GHCB_MSR_VMPL_RESP … #define GHCB_MSR_VMPL_RESP_VAL(v) … /* GHCB Hypervisor Feature Request/Response */ #define GHCB_MSR_HV_FT_REQ … #define GHCB_MSR_HV_FT_RESP … #define GHCB_MSR_HV_FT_POS … #define GHCB_MSR_HV_FT_MASK … #define GHCB_MSR_HV_FT_RESP_VAL(v) … #define GHCB_HV_FT_SNP … #define GHCB_HV_FT_SNP_AP_CREATION … #define GHCB_HV_FT_SNP_MULTI_VMPL … /* * SNP Page State Change NAE event * The VMGEXIT_PSC_MAX_ENTRY determines the size of the PSC structure, which * is a local stack variable in set_pages_state(). Do not increase this value * without evaluating the impact to stack usage. * * Use VMGEXIT_PSC_MAX_COUNT in cases where the actual GHCB-defined max value * is needed, such as when processing GHCB requests on the hypervisor side. */ #define VMGEXIT_PSC_MAX_ENTRY … #define VMGEXIT_PSC_MAX_COUNT … #define VMGEXIT_PSC_ERROR_GENERIC … #define VMGEXIT_PSC_ERROR_INVALID_HDR … #define VMGEXIT_PSC_ERROR_INVALID_ENTRY … #define VMGEXIT_PSC_OP_PRIVATE … #define VMGEXIT_PSC_OP_SHARED … struct psc_hdr { … } __packed; struct psc_entry { … } __packed; struct snp_psc_desc { … } __packed; #define GHCB_MSR_TERM_REQ … #define GHCB_MSR_TERM_REASON_SET_POS … #define GHCB_MSR_TERM_REASON_SET_MASK … #define GHCB_MSR_TERM_REASON_POS … #define GHCB_MSR_TERM_REASON_MASK … #define GHCB_SEV_TERM_REASON(reason_set, reason_val) … /* Error codes from reason set 0 */ #define SEV_TERM_SET_GEN … #define GHCB_SEV_ES_GEN_REQ … #define GHCB_SEV_ES_PROT_UNSUPPORTED … #define GHCB_SNP_UNSUPPORTED … /* Linux-specific reason codes (used with reason set 1) */ #define SEV_TERM_SET_LINUX … #define GHCB_TERM_REGISTER … #define GHCB_TERM_PSC … #define GHCB_TERM_PVALIDATE … #define GHCB_TERM_NOT_VMPL0 … #define GHCB_TERM_CPUID … #define GHCB_TERM_CPUID_HV … #define GHCB_TERM_SECRETS_PAGE … #define GHCB_TERM_NO_SVSM … #define GHCB_TERM_SVSM_VMPL0 … #define GHCB_TERM_SVSM_CAA … #define GHCB_RESP_CODE(v) … /* * Error codes related to GHCB input that can be communicated back to the guest * by setting the lower 32-bits of the GHCB SW_EXITINFO1 field to 2. */ #define GHCB_ERR_NOT_REGISTERED … #define GHCB_ERR_INVALID_USAGE … #define GHCB_ERR_INVALID_SCRATCH_AREA … #define GHCB_ERR_MISSING_INPUT … #define GHCB_ERR_INVALID_INPUT … #define GHCB_ERR_INVALID_EVENT … #endif
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