> On Oct 20, 2017, at 5:20 PM, Ingo Molnar wrote:
>
>
> * Thomas Garnier wrote:
>
*/
- cmpq$.Lentry_SYSCALL_64_after_fastpath_call, (%rsp)
+ leaq.Lentry_SYSCALL_64_after_fastpath_call(%rip), %r11
+ cmpq%r11, (%rsp)
jne 1f
>
>>>
> On Oct 20, 2017, at 5:20 PM, Ingo Molnar wrote:
>
>
> * Thomas Garnier wrote:
>
*/
- cmpq$.Lentry_SYSCALL_64_after_fastpath_call, (%rsp)
+ leaq.Lentry_SYSCALL_64_after_fastpath_call(%rip), %r11
+ cmpq%r11, (%rsp)
jne 1f
>
>>>
* Thomas Garnier wrote:
> >>*/
> >> - cmpq$.Lentry_SYSCALL_64_after_fastpath_call, (%rsp)
> >> + leaq.Lentry_SYSCALL_64_after_fastpath_call(%rip), %r11
> >> + cmpq%r11, (%rsp)
> >> jne 1f
> > This patch seems to add extra overhead to the syscall fast-pa
On Fri, Oct 20, 2017 at 1:26 AM, Ingo Molnar wrote:
>
> * Thomas Garnier wrote:
>
>> Change the assembly code to use only relative references of symbols for the
>> kernel to be PIE compatible.
>>
>> Position Independent Executable (PIE) support will allow to extended the
>> KASLR randomization ra
* Thomas Garnier wrote:
> Change the assembly code to use only relative references of symbols for the
> kernel to be PIE compatible.
>
> Position Independent Executable (PIE) support will allow to extended the
> KASLR randomization range below the -2G memory limit.
>
> Signed-off-by: Thomas Ga
Change the assembly code to use only relative references of symbols for the
kernel to be PIE compatible.
Position Independent Executable (PIE) support will allow to extended the
KASLR randomization range below the -2G memory limit.
Signed-off-by: Thomas Garnier
---
arch/x86/entry/entry_64.S | 2
