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Revert "x86/bugs: Use fixed addressing for VERW operand"
commit532a0c57d7
upstream. This was reverts commit8009479ee9
. It was originally in x86/urgent, but was deemed wrong so got zapped. But in the meantime, x86/urgent had been merged into x86/apic to resolve a conflict. I didn't notice the merge so didn't zap it from x86/apic and it managed to make it up with the x86/apic material. The reverted commit is known to cause some KASAN problems. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -332,7 +332,7 @@
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* Note: Only the memory operand variant of VERW clears the CPU buffers.
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* Note: Only the memory operand variant of VERW clears the CPU buffers.
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*/
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*/
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.macro CLEAR_CPU_BUFFERS
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.macro CLEAR_CPU_BUFFERS
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ALTERNATIVE "", __stringify(verw mds_verw_sel), X86_FEATURE_CLEAR_CPU_BUF
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ALTERNATIVE "", __stringify(verw _ASM_RIP(mds_verw_sel)), X86_FEATURE_CLEAR_CPU_BUF
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.endm
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.endm
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#else /* __ASSEMBLY__ */
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#else /* __ASSEMBLY__ */
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