On 02/02/15 at 08:42am, H. Peter Anvin wrote:
> On 01/20/2015 07:37 PM, Baoquan He wrote:
> >
> >Leftover problem:
> > hpa want to see the physical randomization can cover the whole physical
> > memory. I
> >checked code and found it's hard to do. Because in
> >arch/x86/boot/compressed/head_6
On 01/20/2015 07:37 PM, Baoquan He wrote:
Leftover problem:
hpa want to see the physical randomization can cover the whole physical
memory. I
checked code and found it's hard to do. Because in
arch/x86/boot/compressed/head_64.S
an identity mapping of 4G is built and then kaslr and decompr
On 02/01/15 at 05:13am, Andy Lutomirski wrote:
> I applied this to Linus' tree today, and I get:
>
> early console in decompress_kernel
> KASLR disabled by default...
>
> Decompressing Linux...
>
> XZ-compressed data is corrupt
>
> -- System halted
>
> If I comment out the output = 0x14
On 02/01/15 at 05:13am, Andy Lutomirski wrote:
> On Sun, Feb 1, 2015 at 12:10 AM, Baoquan He wrote:
> > On 01/20/15 at 08:19pm, Andy Lutomirski wrote:
> >> On 01/20/2015 07:37 PM, Baoquan He wrote:
> >>
> >> I have no idea what the #PF thing you're referring to is, but I have
> >> code to implemen
On Sun, Feb 1, 2015 at 12:10 AM, Baoquan He wrote:
> On 01/20/15 at 08:19pm, Andy Lutomirski wrote:
>> On 01/20/2015 07:37 PM, Baoquan He wrote:
>>
>> I have no idea what the #PF thing you're referring to is, but I have
>> code to implement a #PF handler in boot/compressed if it would be
>> helpfu
On 01/20/15 at 08:19pm, Andy Lutomirski wrote:
> On 01/20/2015 07:37 PM, Baoquan He wrote:
>
> I have no idea what the #PF thing you're referring to is, but I have
> code to implement a #PF handler in boot/compressed if it would be
> helpful. It's two patches:
>
> https://git.kernel.org/cgit/lin
On Tue, Jan 20, 2015 at 7:37 PM, Baoquan He wrote:
> Currently kaslr only randomize physical address of kernel loading, then add
> the delta
> to virtual address of kernel text mapping. Because kernel virtual address can
> only be
> from __START_KERNEL_map to
> LOAD_PHYSICAL_ADDR+CONFIG_RANDOMI
On 01/20/15 at 08:19pm, Andy Lutomirski wrote:
> On 01/20/2015 07:37 PM, Baoquan He wrote:
> > Currently kaslr only randomize physical address of kernel loading, then add
> > the delta
> > to virtual address of kernel text mapping. Because kernel virtual address
> > can only be
> > from __START_K
On 01/20/2015 07:37 PM, Baoquan He wrote:
> Currently kaslr only randomize physical address of kernel loading, then add
> the delta
> to virtual address of kernel text mapping. Because kernel virtual address can
> only be
> from __START_KERNEL_map to
> LOAD_PHYSICAL_ADDR+CONFIG_RANDOMIZE_BASE_MA
Currently kaslr only randomize physical address of kernel loading, then add the
delta
to virtual address of kernel text mapping. Because kernel virtual address can
only be
from __START_KERNEL_map to LOAD_PHYSICAL_ADDR+CONFIG_RANDOMIZE_BASE_MAX_OFFSET,
namely
[0x8000, 0xc0
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