Function report |
Source Code:arch\x86\include\asm\fpu\internal.h |
Create Date:2022-07-28 07:29:34 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
| home page | Tree |
| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Load PKRU from the FPU context if available. Delay loading of the* complete FPU state until the return to userland.
Proto:static inline void switch_fpu_finish(struct fpu *new_fpu)
Type:void
Parameter:
| Type | Parameter | Name |
|---|---|---|
| struct fpu * | new_fpu |
| 595 | pkru_val = init_pkru_value |
| 598 | If Not static_cpu_has(Onboard FPU ) Then Return |
| 603 | If Not This macro is for detection of features which need kernel* infrastructure to be used(OS Protection Keys Enable ) Then Return |
| 610 | If mm Then |
| 611 | pk = get_xsave_addr( & xsave, XFEATURE_PKRU) |
| 615 | __write_pkru(pkru_val) |
| Name | Describe |
|---|---|
| __switch_to | switch_to(x,y) should switch tasks from x to y |
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