git: nvmm(4): Undefine all specialreg macros to avoid potential conflicts

[Aaron LI]

commit ea254af1abf41fc6ff9982711742628945b31c1c
Author: Aaron LI <aly at aaronly.me>
Date:   Fri Aug 7 20:56:37 2026 +0800

    nvmm(4): Undefine all specialreg macros to avoid potential conflicts
    
    The 'nvmm_x86.h' is a public header that's included via 'nvmm.h', so
    it's possible for the custom defined CR0/CR4/XCR0/MSR bits to conflict
    with OS's version; for example, including one header that pulls in
    <machine/specialreg.h>.  This is actually the case happened in NetBSD
    11.0.
    
    In order to resolve the conflict in NetBSD 11.0 and be future-proof,
    move the specialreg macros to the internal header 'nvmm_x86_internal.h',
    and generate the `#undef` block to undefine all the macros to avoid any
    redefinition warnings.
    
    Discussed-with: Maxime Villard (m00nbsd)

Summary of changes:
 sys/dev/virtual/nvmm/x86/nvmm_x86.h          |  70 --------
 sys/dev/virtual/nvmm/x86/nvmm_x86_internal.h | 257 ++++++++++++++++++++++++++-
 sys/dev/virtual/nvmm/x86/nvmm_x86_svmfunc.S  |   4 +-
 sys/dev/virtual/nvmm/x86/nvmm_x86_vmxfunc.S  |   4 +-
 4 files changed, 260 insertions(+), 75 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/ea254af1abf41fc6ff9982711742628945b31c1c


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