lkml.org 
[lkml]   [2019]   [Aug]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v3 11/17] arm64, trans_pgd: add PUD_SECT_RDONLY
    Date
    Thre is PMD_SECT_RDONLY that is used in pud_* function which is confusing.

    Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
    ---
    arch/arm64/include/asm/pgtable-hwdef.h | 1 +
    arch/arm64/mm/trans_pgd.c | 2 +-
    2 files changed, 2 insertions(+), 1 deletion(-)

    diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
    index db92950bb1a0..dcb4f13c7888 100644
    --- a/arch/arm64/include/asm/pgtable-hwdef.h
    +++ b/arch/arm64/include/asm/pgtable-hwdef.h
    @@ -110,6 +110,7 @@
    #define PUD_TABLE_BIT (_AT(pudval_t, 1) << 1)
    #define PUD_TYPE_MASK (_AT(pudval_t, 3) << 0)
    #define PUD_TYPE_SECT (_AT(pudval_t, 1) << 0)
    +#define PUD_SECT_RDONLY (_AT(pudval_t, 1) << 7) /* AP[2] */

    /*
    * Level 2 descriptor (PMD).
    diff --git a/arch/arm64/mm/trans_pgd.c b/arch/arm64/mm/trans_pgd.c
    index 7d8734709b61..efd42509d069 100644
    --- a/arch/arm64/mm/trans_pgd.c
    +++ b/arch/arm64/mm/trans_pgd.c
    @@ -138,7 +138,7 @@ static int copy_pud(pgd_t *dst_pgdp, pgd_t *src_pgdp, unsigned long start,
    return -ENOMEM;
    } else {
    set_pud(dst_pudp,
    - __pud(pud_val(pud) & ~PMD_SECT_RDONLY));
    + __pud(pud_val(pud) & ~PUD_SECT_RDONLY));
    }
    } while (dst_pudp++, src_pudp++, addr = next, addr != end);

    --
    2.23.0
    \
     
     \ /
      Last update: 2019-08-21 20:33    [W:4.043 / U:0.212 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site