On 27/03/16 19:23, Aneesh Kumar K.V wrote:
> PS3 had used PPP bit hack to implement a read only mapping in the
> kernel area. Since we are bolt mapping the ioremap area, it used
> the pte flags _PAGE_PRESENT | _PAGE_USER to get a PPP value of 0x3
> there by resulting in a read only mapping. This
PS3 had used PPP bit hack to implement a read only mapping in the
kernel area. Since we are bolt mapping the ioremap area, it used
the pte flags _PAGE_PRESENT | _PAGE_USER to get a PPP value of 0x3
there by resulting in a read only mapping. This means the area
can be accessed by user space, but ker
