https://sourceware.org/bugzilla/show_bug.cgi?id=26339
--- Comment #5 from Nick Desaulniers <ndesaulniers at google dot com> --- (In reply to David Spickett from comment #4) > Is there existing > code that uses it with gas perhaps. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/include/asm/tlbflush.h In the Linux kernel header that uses tlb-rmi. It's C, but the inline assembly is what's tripping us up. It's pretty well commented what the functions in the header are for. Specifically, it looks like the functions flush_tlb_all/flush_tlb_mm/flush_tlb_page_nosync/flush_tlb_kernel_range/__flush_tlb_kernel_pgtable try to use `tlbi ` vmalle1/vmalle1is/aside1is/vale1is/vaale1is/vaae1is respectively. For out of line assembly files using `tlbi`, see: - arch/arm64/mm/proc.S - arch/arm64/kernel/hibernate-asm.S - arch/arm64/kernel/head.S - arch/arm64/kernel/entry.S - arch/arm64/kvm/hyp/nvhe/hyp-init.S I can also see the use of the tlbi related macros using tlbi in inline asm in some of the virtualization code: - arch/arm64/kvm/hyp/nvhe/tlb.c - arch/arm64/kvm/hyp/vhe/tlb.c - arch/arm64/kernel/sys_compat.c Is the tlbi instruction what was added in ARMv8.4 (tlb-rmi), or only certain operands? -- You are receiving this mail because: You are on the CC list for the bug.
