Messages in this thread Patch in this message | | | Date | Wed, 13 Mar 2024 09:16:59 -0000 | From | "tip-bot2 for Dave Hansen" <> | Subject | [tip: x86/urgent] Revert "x86/bugs: Use fixed addressing for VERW operand" |
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The following commit has been merged into the x86/urgent branch of tip:
Commit-ID: bfa5fa246c0724c2cc1bd0dfe57531aaa7f520c1 Gitweb: https://git.kernel.org/tip/bfa5fa246c0724c2cc1bd0dfe57531aaa7f520c1 Author: Dave Hansen <dave.hansen@linux.intel.com> AuthorDate: Tue, 12 Mar 2024 07:27:57 -07:00 Committer: Ingo Molnar <mingo@kernel.org> CommitterDate: Wed, 13 Mar 2024 10:08:09 +01:00
Revert "x86/bugs: Use fixed addressing for VERW operand"
This was reverts commit 8009479ee919b9a91674f48050ccbff64eafedaa.
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: Ingo Molnar <mingo@kernel.org> --- arch/x86/include/asm/nospec-branch.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h index d0b8bb7..fc3a8a3 100644 --- a/arch/x86/include/asm/nospec-branch.h +++ b/arch/x86/include/asm/nospec-branch.h @@ -314,7 +314,7 @@ * Note: Only the memory operand variant of VERW clears the CPU buffers. */ .macro CLEAR_CPU_BUFFERS - ALTERNATIVE "", __stringify(verw mds_verw_sel), X86_FEATURE_CLEAR_CPU_BUF + ALTERNATIVE "", __stringify(verw _ASM_RIP(mds_verw_sel)), X86_FEATURE_CLEAR_CPU_BUF .endm #else /* __ASSEMBLY__ */
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