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https://github.com/projectacrn/acrn-hypervisor.git
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6367650a70
The npk_log is a log destination for the hypervisor, similar to the console_log and the mem_log. It can be enabled/disabled/configured by the SOS kernel via the hypercall HC_SETUP_HV_NPK_LOG. The configuration includes: 1. Set the MMIO base address of the reserved NPK master. 2. Set the log level of the hypervisor NPK log. After that, the npk_log can be enabled to write the hypervisor logs to the MMIO address of the reserved NPK master with a simple header. Signed-off-by: Zhi Jin <zhi.jin@intel.com> Signed-off-by: Liu, Xiaojing <xiaojing.liu@intel.com> Reviewed-by: CHEN Gang <gang.c.chen@intel.com> Acked-by: Anthony Xu <anthony.xu@intel.com>
57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation.
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef NPK_LOG_H
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#define NPK_LOG_H
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#define HV_NPK_LOG_REF_SHIFT 2U
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#define HV_NPK_LOG_REF_MASK ((1U << HV_NPK_LOG_REF_SHIFT) - 1U)
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#define HV_NPK_LOG_MAX 1024U
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#define HV_NPK_LOG_HDR 0x01000242U
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enum {
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HV_NPK_LOG_CMD_INVALID,
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HV_NPK_LOG_CMD_CONF,
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HV_NPK_LOG_CMD_ENABLE,
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HV_NPK_LOG_CMD_DISABLE,
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HV_NPK_LOG_CMD_QUERY,
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};
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enum {
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HV_NPK_LOG_RES_INVALID,
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HV_NPK_LOG_RES_OK,
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HV_NPK_LOG_RES_KO,
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HV_NPK_LOG_RES_ENABLED,
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HV_NPK_LOG_RES_DISABLED,
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};
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struct hv_npk_log_param;
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struct npk_chan {
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uint64_t Dn;
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uint64_t DnM;
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uint64_t DnTS;
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uint64_t DnMTS;
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uint64_t USER;
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uint64_t USER_TS;
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uint32_t FLAG;
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uint32_t FLAG_TS;
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uint32_t MERR;
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uint32_t unused;
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} __packed;
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#ifdef HV_DEBUG
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void npk_log_setup(struct hv_npk_log_param *param);
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void npk_log_write(const char *buf, size_t len);
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#else
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static inline void npk_log_setup(__unused struct hv_npk_log_param *param)
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{}
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static inline void npk_log_write(__unused const char *buf, __unused size_t len)
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{}
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#endif /* HV_DEBUG */
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#endif /* NPK_LOG_H */
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