what's means of CFLAGS_vmx which is in kvm Makefile?
I'm reading about the kvm modules. I can't understand the CFLAGS_vmx.o in the Makefile of kvm. I guess that it is to add "-I" option to compile the vmx.c. Is it the implicit deduction rules of Makefile?(I don't know how to search it.)
CFLAGS_x86.o := -I. CFLAGS_svm.o := -I. CFLAGS_vmx.o := -I.
I guess that it is to add "-I" option to compile the vmx.c.
Yes, variable CFLAGS_<name>.o defines compilation flags, which are used for compile file <name>.c (usually) into <name>.o.
These variables and others, which are used in kernel's makefiles, are described in Documentation/kbuild/makefiles.txt.