• Charles Jacobsen's avatar
    Switched to a kmem cache for allocating lcd_arch's. · 0f6ce597
    Charles Jacobsen authored
    Was getting bad load/store msr addresses for vm exits.
    Properly detected by the lcd_arch_check code.
    
    In struct lcd_arch, the msr_autoload fields were not
    word aligned in some instances (see requirement
    in Intel SDM V3 26.2.1.2). Even with compiler align
    attributes, if we use kmalloc, proper alignment is
    not guaranteed - we can allocate a struct lcd_arch
    on the wrong byte and it throws off the alignment
    of the entire struct.
    
    kmem cache allows specifying alignment. Appears to be
    working correctly.
    0f6ce597
lcd-domains-arch.c 105 KB