34 lines
816 B
C
34 lines
816 B
C
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI_PAPR_HVPIPE_H_
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#define _UAPI_PAPR_HVPIPE_H_
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#include <linux/types.h>
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#include <asm/ioctl.h>
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#include <asm/papr-miscdev.h>
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/*
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* This header is included in payload between OS and the user
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* space.
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* flags: OS notifies the user space whether the hvpipe is
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* closed or the buffer has the payload.
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*/
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struct papr_hvpipe_hdr {
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__u8 version;
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__u8 reserved[3];
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__u32 flags;
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__u8 reserved2[40];
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};
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/*
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* ioctl for /dev/papr-hvpipe
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*/
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#define PAPR_HVPIPE_IOC_CREATE_HANDLE _IOW(PAPR_MISCDEV_IOC_ID, 9, __u32)
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/*
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* hvpipe_hdr flags used for read()
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*/
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#define HVPIPE_MSG_AVAILABLE 0x01 /* Payload is available */
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#define HVPIPE_LOST_CONNECTION 0x02 /* Pipe connection is closed/unavailable */
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#endif /* _UAPI_PAPR_HVPIPE_H_ */
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