.. | .. |
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8 | 8 | */ |
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9 | 9 | |
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10 | 10 | #include <linux/linkage.h> |
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11 | | -#include <asm/segment.h> |
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12 | | -#include <asm/msr.h> |
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13 | | -#include <asm/processor-flags.h> |
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14 | | -#include <asm/page_types.h> |
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| 11 | +#include <asm/nospec-branch.h> |
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15 | 12 | |
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16 | | -#define SAVE_XMM \ |
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17 | | - mov %rsp, %rax; \ |
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18 | | - subq $0x70, %rsp; \ |
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19 | | - and $~0xf, %rsp; \ |
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20 | | - mov %rax, (%rsp); \ |
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21 | | - mov %cr0, %rax; \ |
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22 | | - clts; \ |
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23 | | - mov %rax, 0x8(%rsp); \ |
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24 | | - movaps %xmm0, 0x60(%rsp); \ |
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25 | | - movaps %xmm1, 0x50(%rsp); \ |
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26 | | - movaps %xmm2, 0x40(%rsp); \ |
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27 | | - movaps %xmm3, 0x30(%rsp); \ |
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28 | | - movaps %xmm4, 0x20(%rsp); \ |
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29 | | - movaps %xmm5, 0x10(%rsp) |
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30 | | - |
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31 | | -#define RESTORE_XMM \ |
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32 | | - movaps 0x60(%rsp), %xmm0; \ |
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33 | | - movaps 0x50(%rsp), %xmm1; \ |
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34 | | - movaps 0x40(%rsp), %xmm2; \ |
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35 | | - movaps 0x30(%rsp), %xmm3; \ |
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36 | | - movaps 0x20(%rsp), %xmm4; \ |
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37 | | - movaps 0x10(%rsp), %xmm5; \ |
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38 | | - mov 0x8(%rsp), %rsi; \ |
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39 | | - mov %rsi, %cr0; \ |
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40 | | - mov (%rsp), %rsp |
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41 | | - |
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42 | | -ENTRY(efi_call) |
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| 13 | +SYM_FUNC_START(__efi_call) |
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43 | 14 | pushq %rbp |
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44 | 15 | movq %rsp, %rbp |
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45 | | - SAVE_XMM |
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| 16 | + and $~0xf, %rsp |
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46 | 17 | mov 16(%rbp), %rax |
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47 | 18 | subq $48, %rsp |
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48 | 19 | mov %r9, 32(%rsp) |
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.. | .. |
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50 | 21 | mov %r8, %r9 |
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51 | 22 | mov %rcx, %r8 |
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52 | 23 | mov %rsi, %rcx |
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53 | | - call *%rdi |
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54 | | - addq $48, %rsp |
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55 | | - RESTORE_XMM |
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56 | | - popq %rbp |
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57 | | - ret |
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58 | | -ENDPROC(efi_call) |
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| 24 | + CALL_NOSPEC rdi |
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| 25 | + leave |
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| 26 | + RET |
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| 27 | +SYM_FUNC_END(__efi_call) |
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