STRUCT FSL_HV_IOCTL_PROP(9)

💅 struct fsl_hv_ioctl_prop(9) — like, the Kernel API Manual bestie ✨

okay so real talk: this is a page from the Kernel API Manual and it's about a struct called struct fsl_hv_ioctl_prop. she's a little legend and she's about to make ur whole device-tree-property situation make sense. stay with me 🫶

✨ NAME ✨

struct fsl_hv_ioctl_prop — get/set a device tree property. that's it, that's the whole vibe. get it, set it, slay 💅

🦋 SYNOPSIS 🦋

no cap, here's the literal shape of her:

struct fsl_hv_ioctl_prop {
    __u32 ret;
    __u32 handle;
    __u64 path;
    __u64 propname;
    __u64 propval;
    __u32 proplen;
    __u32 reserved;
 };

🎀 Members 🎀

okay let's go field by field, i got u:

• ret — the return error code from the hypervisor. this is where the hypervisor tells u how it went. lowkey the most important one for vibe checking ur result 🔥
• handle — the handle of the partition whose tree u wanna access. yes, that partition. u gotta know which tree ur touching before u touch it, ikyk 👑
• path — virtual address of the path name of the node u wanna access. so, like, the address of the string, not the string itself. very demure, very pointer-pilled 🎀
• propname — virtual address of the name of the property u wanna access. again: address of the name, not the name. pointing at the name. pointing at the vibe ✨
• propval — virtual address of the property data buffer. this is where the actual property data lives (address-wise) 💖
• proplen — size of the property data buffer. literally just the size. don't skip her, she matters for buffer safety bestie 😭
• reserved — reserved, and it must be set to 0. not "probably 0", not "ehh 0-ish". zero. set it to zero or the universe (and the kernel) will be unhappy with u 💀

💜 Description 💜

Used by FSL_HV_IOCTL_DOORBELL. that's the whole description, she's short and she knows it 🌸

🌈 SEE ALSO 🌈

go read these next, bestie, they're in the same family:

• ./include/uapi/linux/fsl_hypervisor.h
• struct fsl_hv_ioctl_restart(9)
• struct fsl_hv_ioctl_status(9)
• struct fsl_hv_ioctl_start(9)
• struct fsl_hv_ioctl_stop(9)
• struct fsl_hv_ioctl_memcpy(9)
• struct fsl_hv_ioctl_doorbell(9)

and that's the whole page, bestie!! 💖 no gatekeeping, no summary, every single field accounted for 🫶 this one came from ./include/uapi/linux, dated October 2026, and she's filed under struct fsl_hv_ioctl_prop(9). take care of her, set reserved to 0, and go get that property. periodt 💅✨