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    Subject[PATCH 7/19] introduce ldt_desc type.
    Date
    this patch introduces ldt_desc type to account for the differences
    in the ldt descriptor in x86_64 and i386

    Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
    ---
    include/asm-x86/desc_64.h | 2 +-
    include/asm-x86/desc_defs.h | 4 +++-
    2 files changed, 4 insertions(+), 2 deletions(-)

    diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
    index ffc6c06..8fe1b4c 100644
    --- a/include/asm-x86/desc_64.h
    +++ b/include/asm-x86/desc_64.h
    @@ -113,7 +113,7 @@ static inline void store_idt(struct desc_ptr *dtr)
    static inline void set_tssldt_descriptor(void *ptr, unsigned long tss,
    unsigned type, unsigned size)
    {
    - struct ldttss_desc d;
    + struct ldttss_desc64 d;

    memset(&d, 0, sizeof(d));
    d.limit0 = size & 0xFFFF;
    diff --git a/include/asm-x86/desc_defs.h b/include/asm-x86/desc_defs.h
    index e502549..3a562d1 100644
    --- a/include/asm-x86/desc_defs.h
    +++ b/include/asm-x86/desc_defs.h
    @@ -61,7 +61,7 @@ enum {
    };

    // LDT or TSS descriptor in the GDT. 16 bytes.
    -struct ldttss_desc {
    +struct ldttss_desc64 {
    u16 limit0;
    u16 base0;
    unsigned base1 : 8, type : 5, dpl : 2, p : 1;
    @@ -72,8 +72,10 @@ struct ldttss_desc {

    #ifdef CONFIG_X86_64
    typedef struct gate_struct64 gate_desc;
    +typedef struct ldttss_desc64 ldt_desc;
    #else
    typedef struct desc_struct gate_desc;
    +typedef struct desc_struct ldt_desc;
    #endif

    struct desc_ptr {
    --
    1.4.4.2


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