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dc1e35c6 SS |
1 | #ifndef __ASM_X86_XSAVE_H |
2 | #define __ASM_X86_XSAVE_H | |
3 | ||
6152e4b1 | 4 | #include <linux/types.h> |
dc1e35c6 | 5 | #include <asm/processor.h> |
59a36d16 | 6 | #include <linux/uaccess.h> |
dc1e35c6 | 7 | |
56c103ec LJ |
8 | /* Bit 63 of XCR0 is reserved for future expansion */ |
9 | #define XSTATE_EXTEND_MASK (~(XSTATE_FPSSE | (1ULL << 63))) | |
dc1e35c6 | 10 | |
677b98bd IM |
11 | #define XSTATE_CPUID 0x0000000d |
12 | ||
dc1e35c6 SS |
13 | #define FXSAVE_SIZE 512 |
14 | ||
2d5b5a66 SY |
15 | #define XSAVE_HDR_SIZE 64 |
16 | #define XSAVE_HDR_OFFSET FXSAVE_SIZE | |
17 | ||
18 | #define XSAVE_YMM_SIZE 256 | |
19 | #define XSAVE_YMM_OFFSET (XSAVE_HDR_SIZE + XSAVE_HDR_OFFSET) | |
5ee481da | 20 | |
e7d820a5 | 21 | /* Supported features which support lazy state saving */ |
c2bc11f1 FY |
22 | #define XSTATE_LAZY (XSTATE_FP | XSTATE_SSE | XSTATE_YMM \ |
23 | | XSTATE_OPMASK | XSTATE_ZMM_Hi256 | XSTATE_Hi16_ZMM) | |
e7d820a5 QR |
24 | |
25 | /* Supported features which require eager state saving */ | |
26 | #define XSTATE_EAGER (XSTATE_BNDREGS | XSTATE_BNDCSR) | |
27 | ||
28 | /* All currently supported features */ | |
29 | #define XCNTXT_MASK (XSTATE_LAZY | XSTATE_EAGER) | |
dc1e35c6 | 30 | |
b359e8a4 SS |
31 | #ifdef CONFIG_X86_64 |
32 | #define REX_PREFIX "0x48, " | |
33 | #else | |
34 | #define REX_PREFIX | |
35 | #endif | |
36 | ||
6152e4b1 | 37 | extern unsigned int xstate_size; |
614df7fb | 38 | extern u64 xfeatures_mask; |
5b3efd50 | 39 | extern u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS]; |
dc1e35c6 | 40 | |
5b3efd50 | 41 | extern void update_regset_xstate_info(unsigned int size, u64 xstate_mask); |
b359e8a4 | 42 | |
c47ada30 | 43 | void *get_xsave_addr(struct xregs_state *xsave, int xstate); |
7496d645 | 44 | |
dc1e35c6 | 45 | #endif |