Displaying 11 results from an estimated 11 matches for "ce8da3a0412c".
2018 May 24
2
[PATCH v3 11/27] x86/power/64: Adapt assembly for PIE support
...le (PIE) support will allow to extended the
> KASLR randomization range below the -2G memory limit.
>
> Signed-off-by: Thomas Garnier <thgarnie at google.com>
Again, was this tested?
> diff --git a/arch/x86/power/hibernate_asm_64.S b/arch/x86/power/hibernate_asm_64.S
> index ce8da3a0412c..6fdd7bbc3c33 100644
> --- a/arch/x86/power/hibernate_asm_64.S
> +++ b/arch/x86/power/hibernate_asm_64.S
> @@ -24,7 +24,7 @@
> #include <asm/frame.h>
>
> ENTRY(swsusp_arch_suspend)
> - movq $saved_context, %rax
> + leaq saved_context(%rip), %rax
> movq %rsp, p...
2018 May 24
2
[PATCH v3 11/27] x86/power/64: Adapt assembly for PIE support
...le (PIE) support will allow to extended the
> KASLR randomization range below the -2G memory limit.
>
> Signed-off-by: Thomas Garnier <thgarnie at google.com>
Again, was this tested?
> diff --git a/arch/x86/power/hibernate_asm_64.S b/arch/x86/power/hibernate_asm_64.S
> index ce8da3a0412c..6fdd7bbc3c33 100644
> --- a/arch/x86/power/hibernate_asm_64.S
> +++ b/arch/x86/power/hibernate_asm_64.S
> @@ -24,7 +24,7 @@
> #include <asm/frame.h>
>
> ENTRY(swsusp_arch_suspend)
> - movq $saved_context, %rax
> + leaq saved_context(%rip), %rax
> movq %rsp, p...
2018 May 23
0
[PATCH v3 11/27] x86/power/64: Adapt assembly for PIE support
...LR randomization range below the -2G memory limit.
Signed-off-by: Thomas Garnier <thgarnie at google.com>
---
arch/x86/power/hibernate_asm_64.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/power/hibernate_asm_64.S b/arch/x86/power/hibernate_asm_64.S
index ce8da3a0412c..6fdd7bbc3c33 100644
--- a/arch/x86/power/hibernate_asm_64.S
+++ b/arch/x86/power/hibernate_asm_64.S
@@ -24,7 +24,7 @@
#include <asm/frame.h>
ENTRY(swsusp_arch_suspend)
- movq $saved_context, %rax
+ leaq saved_context(%rip), %rax
movq %rsp, pt_regs_sp(%rax)
movq %rbp, pt_regs_bp(%rax)...
2018 May 24
0
[PATCH v3 11/27] x86/power/64: Adapt assembly for PIE support
...Garnier <thgarnie at google.com>
> Again, was this tested?
Hibernation was tested as much as I can with qemu and my dedicated machine.
Any specific test you think I should use?
> > diff --git a/arch/x86/power/hibernate_asm_64.S
b/arch/x86/power/hibernate_asm_64.S
> > index ce8da3a0412c..6fdd7bbc3c33 100644
> > --- a/arch/x86/power/hibernate_asm_64.S
> > +++ b/arch/x86/power/hibernate_asm_64.S
> > @@ -24,7 +24,7 @@
> > #include <asm/frame.h>
> >
> > ENTRY(swsusp_arch_suspend)
> > - movq $saved_context, %rax
> > + l...
2018 May 23
33
[PATCH v3 00/27] x86: PIE support and option to extend KASLR randomization
Changes:
- patch v3:
- Update on message to describe longer term PIE goal.
- Minor change on ftrace if condition.
- Changed code using xchgq.
- patch v2:
- Adapt patch to work post KPTI and compiler changes
- Redo all performance testing with latest configs and compilers
- Simplify mov macro on PIE (MOVABS now)
- Reduce GOT footprint
- patch v1:
- Simplify ftrace
2018 Mar 13
32
[PATCH v2 00/27] x86: PIE support and option to extend KASLR randomization
Changes:
- patch v2:
- Adapt patch to work post KPTI and compiler changes
- Redo all performance testing with latest configs and compilers
- Simplify mov macro on PIE (MOVABS now)
- Reduce GOT footprint
- patch v1:
- Simplify ftrace implementation.
- Use gcc mstack-protector-guard-reg=%gs with PIE when possible.
- rfc v3:
- Use --emit-relocs instead of -pie to reduce
2018 Mar 13
32
[PATCH v2 00/27] x86: PIE support and option to extend KASLR randomization
Changes:
- patch v2:
- Adapt patch to work post KPTI and compiler changes
- Redo all performance testing with latest configs and compilers
- Simplify mov macro on PIE (MOVABS now)
- Reduce GOT footprint
- patch v1:
- Simplify ftrace implementation.
- Use gcc mstack-protector-guard-reg=%gs with PIE when possible.
- rfc v3:
- Use --emit-relocs instead of -pie to reduce
2017 Oct 04
28
x86: PIE support and option to extend KASLR randomization
These patches make the changes necessary to build the kernel as Position
Independent Executable (PIE) on x86_64. A PIE kernel can be relocated below
the top 2G of the virtual address space. It allows to optionally extend the
KASLR randomization range from 1G to 3G.
Thanks a lot to Ard Biesheuvel & Kees Cook on their feedback on compiler
changes, PIE support and KASLR in general. Thanks to
2017 Oct 04
28
x86: PIE support and option to extend KASLR randomization
These patches make the changes necessary to build the kernel as Position
Independent Executable (PIE) on x86_64. A PIE kernel can be relocated below
the top 2G of the virtual address space. It allows to optionally extend the
KASLR randomization range from 1G to 3G.
Thanks a lot to Ard Biesheuvel & Kees Cook on their feedback on compiler
changes, PIE support and KASLR in general. Thanks to
2017 Oct 11
32
[PATCH v1 00/27] x86: PIE support and option to extend KASLR randomization
Changes:
- patch v1:
- Simplify ftrace implementation.
- Use gcc mstack-protector-guard-reg=%gs with PIE when possible.
- rfc v3:
- Use --emit-relocs instead of -pie to reduce dynamic relocation space on
mapped memory. It also simplifies the relocation process.
- Move the start the module section next to the kernel. Remove the need for
-mcmodel=large on modules. Extends
2017 Oct 11
32
[PATCH v1 00/27] x86: PIE support and option to extend KASLR randomization
Changes:
- patch v1:
- Simplify ftrace implementation.
- Use gcc mstack-protector-guard-reg=%gs with PIE when possible.
- rfc v3:
- Use --emit-relocs instead of -pie to reduce dynamic relocation space on
mapped memory. It also simplifies the relocation process.
- Move the start the module section next to the kernel. Remove the need for
-mcmodel=large on modules. Extends