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7a26830801
Introduce msrs.{c,h}, and move the vast majority of MSR specific code out
of x86.{c,h}. Use a plural "msrs" instead of just "msr" to be consistent
with regs.{c,h}, and to make it easier to differentiate KVM's code from the
other 5+ msr.c files in the kernel.
Opportunistically drop the "x86.h" include from mtrr.c, mostly as proof
that the bulk of the MSR code is indeed being relocated to msrs.c.
No functional change intended.
Reviewed-by: Kai Huang <kai.huang@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
Message-ID: <20260613000329.732085-15-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
99 lines
3.5 KiB
Makefile
99 lines
3.5 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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ccflags-y += -I $(srctree)/arch/x86/kvm
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ccflags-$(CONFIG_KVM_WERROR) += -Werror
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include $(srctree)/virt/kvm/Makefile.kvm
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kvm-y += x86.o emulate.o irq.o lapic.o cpuid.o msrs.o pmu.o regs.o \
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mtrr.o debugfs.o mmu/mmu.o mmu/page_track.o mmu/spte.o
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kvm-$(CONFIG_X86_64) += mmu/tdp_iter.o mmu/tdp_mmu.o
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kvm-$(CONFIG_KVM_IOAPIC) += i8259.o i8254.o ioapic.o
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kvm-$(CONFIG_KVM_HYPERV) += hyperv.o
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kvm-$(CONFIG_KVM_XEN) += xen.o
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kvm-$(CONFIG_KVM_SMM) += smm.o
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kvm-intel-y += vmx/vmx.o vmx/vmenter.o vmx/pmu_intel.o vmx/vmcs12.o \
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vmx/nested.o vmx/posted_intr.o vmx/main.o
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kvm-intel-$(CONFIG_X86_SGX_KVM) += vmx/sgx.o
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kvm-intel-$(CONFIG_KVM_HYPERV) += vmx/hyperv.o vmx/hyperv_evmcs.o
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kvm-intel-$(CONFIG_KVM_INTEL_TDX) += vmx/tdx.o
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kvm-amd-y += svm/svm.o svm/vmenter.o svm/pmu.o svm/nested.o svm/avic.o
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kvm-amd-$(CONFIG_KVM_AMD_SEV) += svm/sev.o
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kvm-amd-$(CONFIG_KVM_HYPERV) += svm/hyperv.o
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ifdef CONFIG_HYPERV
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kvm-y += kvm_onhyperv.o
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kvm-intel-y += vmx/vmx_onhyperv.o vmx/hyperv_evmcs.o
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kvm-amd-y += svm/svm_onhyperv.o
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endif
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obj-$(CONFIG_KVM_X86) += kvm.o
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obj-$(CONFIG_KVM_INTEL) += kvm-intel.o
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obj-$(CONFIG_KVM_AMD) += kvm-amd.o
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AFLAGS_svm/vmenter.o := -iquote $(obj)
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$(obj)/svm/vmenter.o: $(obj)/kvm-asm-offsets.h
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AFLAGS_vmx/vmenter.o := -iquote $(obj)
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$(obj)/vmx/vmenter.o: $(obj)/kvm-asm-offsets.h
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$(obj)/kvm-asm-offsets.h: $(obj)/kvm-asm-offsets.s FORCE
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$(call filechk,offsets,__KVM_ASM_OFFSETS_H__)
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targets += kvm-asm-offsets.s
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clean-files += kvm-asm-offsets.h
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# Fail the build if there is unexpected EXPORT_SYMBOL_GPL (or EXPORT_SYMBOL)
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# usage. All KVM-internal exports should use EXPORT_SYMBOL_FOR_KVM_INTERNAL.
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# Only a handful of exports intended for other modules (VFIO, KVMGT) should
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# use EXPORT_SYMBOL_GPL, and EXPORT_SYMBOL should never be used.
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ifdef CONFIG_KVM_X86
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# Search recursively for whole words and print line numbers. Filter out the
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# allowed set of exports, i.e. those that are intended for external usage.
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exports_grep_trailer := --include='*.[ch]' -nrw $(srctree)/virt/kvm $(srctree)/arch/x86/kvm | \
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grep -v -e kvm_page_track_register_notifier \
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-e kvm_page_track_unregister_notifier \
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-e kvm_write_track_add_gfn \
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-e kvm_write_track_remove_gfn \
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-e kvm_get_kvm \
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-e kvm_get_kvm_safe \
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-e kvm_put_kvm
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# Force grep to emit a goofy group separator that can in turn be replaced with
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# the above newline macro (newlines in Make are a nightmare). Note, grep only
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# prints the group separator when N lines of context are requested via -C,
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# a.k.a. --NUM. Simply request zero lines. Print the separator only after
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# filtering out expected exports to avoid extra newlines in the error message.
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define get_kvm_exports
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$(shell grep "$(1)" -C0 $(exports_grep_trailer) | grep "$(1)" -C0 --group-separator="!SEP!")
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endef
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define check_kvm_exports
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nr_kvm_exports := $(shell grep "$(1)" $(exports_grep_trailer) | wc -l)
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ifneq (0,$$(nr_kvm_exports))
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$$(error ERROR ***\
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$$(newline)found $$(nr_kvm_exports) unwanted occurrences of $(1):\
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$$(newline) $(subst !SEP!,$$(newline) ,$(call get_kvm_exports,$(1)))\
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$$(newline)in directories:\
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$$(newline) $(srctree)/arch/x86/kvm\
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$$(newline) $(srctree)/virt/kvm\
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$$(newline)Use EXPORT_SYMBOL_FOR_KVM_INTERNAL, not $(1))
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endif # nr_kvm_exports != 0
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undefine nr_kvm_exports
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endef # check_kvm_exports
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$(eval $(call check_kvm_exports,EXPORT_SYMBOL_GPL))
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$(eval $(call check_kvm_exports,EXPORT_SYMBOL))
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undefine check_kvm_exports
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undefine get_kvm_exports
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undefine exports_grep_trailer
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endif # CONFIG_KVM_X86
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