Function report |
Source Code:arch\x86\kernel\fpu\xstate.c |
Create Date:2022-07-28 07:50:39 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:xfeature_uncompacted_offset
Proto:static int xfeature_uncompacted_offset(int xfeature_nr)
Type:int
Parameter:
| Type | Parameter | Name |
|---|---|---|
| int | xfeature_nr |
| 445 | If Supervisor features & BIT_ULL(xfeature_nr) Then |
| 446 | WARN_ONCE(1, "No fixed offset for xstate %d\n", xfeature_nr) |
| 447 | Return -1 |
| 450 | This check is important because it is easy to get XSTATE_** confused with XSTATE_BIT_*.(xfeature_nr) |
| 451 | cpuid_count(XSTATE_CPUID, xfeature_nr, & eax, & ebx, & ecx, & edx) |
| 452 | Return ebx |
| Name | Describe |
|---|---|
| do_extra_xstate_size_checks | This essentially double-checks what the cpu told us about* how large the XSAVE buffer needs to be. We are recalculating* it to be safe. |
| Source code conversion tool public plug-in interface | X |
|---|---|
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