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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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19d6907521
The kcov instrumentation inside SLB routines causes duplicate SLB entries to be added resulting into SLB multihit machine checks. Disable kcov instrumentation on slb.o Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
58 lines
2.1 KiB
Makefile
58 lines
2.1 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for the linux ppc-specific parts of the memory manager.
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#
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ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC)
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CFLAGS_REMOVE_slb.o = $(CC_FLAGS_FTRACE)
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obj-y := fault.o mem.o pgtable.o mmap.o \
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init_$(BITS).o pgtable_$(BITS).o \
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init-common.o mmu_context.o drmem.o
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obj-$(CONFIG_PPC_MMU_NOHASH) += mmu_context_nohash.o tlb_nohash.o \
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tlb_nohash_low.o
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obj-$(CONFIG_PPC_BOOK3E) += tlb_low_$(BITS)e.o
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hash64-$(CONFIG_PPC_NATIVE) := hash_native_64.o
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obj-$(CONFIG_PPC_BOOK3E_64) += pgtable-book3e.o
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obj-$(CONFIG_PPC_BOOK3S_64) += pgtable-hash64.o hash_utils_64.o slb.o \
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$(hash64-y) mmu_context_book3s64.o \
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pgtable-book3s64.o pgtable-frag.o
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obj-$(CONFIG_PPC32) += pgtable-frag.o
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obj-$(CONFIG_PPC_RADIX_MMU) += pgtable-radix.o tlb-radix.o
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obj-$(CONFIG_PPC_BOOK3S_32) += ppc_mmu_32.o hash_low_32.o mmu_context_hash32.o
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obj-$(CONFIG_PPC_BOOK3S) += tlb_hash$(BITS).o
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ifdef CONFIG_PPC_BOOK3S_64
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obj-$(CONFIG_PPC_4K_PAGES) += hash64_4k.o
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obj-$(CONFIG_PPC_64K_PAGES) += hash64_64k.o
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endif
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obj-$(CONFIG_40x) += 40x_mmu.o
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obj-$(CONFIG_44x) += 44x_mmu.o
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obj-$(CONFIG_PPC_8xx) += 8xx_mmu.o
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obj-$(CONFIG_PPC_FSL_BOOK3E) += fsl_booke_mmu.o
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obj-$(CONFIG_NEED_MULTIPLE_NODES) += numa.o
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obj-$(CONFIG_PPC_SPLPAR) += vphn.o
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obj-$(CONFIG_PPC_MM_SLICES) += slice.o
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obj-y += hugetlbpage.o
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ifdef CONFIG_HUGETLB_PAGE
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obj-$(CONFIG_PPC_BOOK3S_64) += hugetlbpage-hash64.o
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obj-$(CONFIG_PPC_RADIX_MMU) += hugetlbpage-radix.o
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obj-$(CONFIG_PPC_BOOK3E_MMU) += hugetlbpage-book3e.o
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endif
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obj-$(CONFIG_TRANSPARENT_HUGEPAGE) += hugepage-hash64.o
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obj-$(CONFIG_PPC_SUBPAGE_PROT) += subpage-prot.o
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obj-$(CONFIG_NOT_COHERENT_CACHE) += dma-noncoherent.o
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obj-$(CONFIG_HIGHMEM) += highmem.o
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obj-$(CONFIG_PPC_COPRO_BASE) += copro_fault.o
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obj-$(CONFIG_SPAPR_TCE_IOMMU) += mmu_context_iommu.o
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obj-$(CONFIG_PPC_PTDUMP) += ptdump/
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obj-$(CONFIG_PPC_MEM_KEYS) += pkeys.o
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# Disable kcov instrumentation on sensitive code
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# This is necessary for booting with kcov enabled on book3e machines
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KCOV_INSTRUMENT_tlb_nohash.o := n
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KCOV_INSTRUMENT_fsl_booke_mmu.o := n
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# Instrumenting the SLB fault path can lead to duplicate SLB entries
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KCOV_INSTRUMENT_slb.o := n
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