Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Catalin Marinas:
"Fix memory corruption (overwriting the kmalloc redzone) when saving
the SVE state while in SVE streaming mode"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: sme: Use STR P to clear FFR context field in streaming SVE mode
+3
-3
+3
-3
arch/arm64/include/asm/fpsimdmacros.h
+3
-3
arch/arm64/include/asm/fpsimdmacros.h
···
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_for n, 0, 15, _sve_str_p \n, \nxbase, \n - 16
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cbz \save_ffr, 921f
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_sve_rdffr 0
319
-
_sve_str_p 0, \nxbase
320
-
_sve_ldr_p 0, \nxbase, -16
321
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b 922f
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921:
323
-
str xzr, [x\nxbase] // Zero out FFR
321
+
_sve_pfalse 0 // Zero out FFR
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922:
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+
_sve_str_p 0, \nxbase
324
+
_sve_ldr_p 0, \nxbase, -16
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mrs x\nxtmp, fpsr
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str w\nxtmp, [\xpfpsr]
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mrs x\nxtmp, fpcr