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Hi all, As part of some recent work to harden the Kernel Address Space Layout Randomisation (KASLR) implementation in arm64 Linux, I've proposed a patch for the kernel which omits the ESR context from the signal frame if the faulting virtual address is outside the range of addresses which can be mapped by userspace. http://lists.infradead.org/pipermail/linux-arm-kernel/2018-March/563837.html

On Wed, Mar 7, 2018 at 4:39 PM, Andrey Ryabinin <aryabinin at virtuozzo.com> wrote: > On 03/06/2018 08:58 PM, Will Deacon wrote: >> Hi all, >> >> As part of some recent work to harden the Kernel Address Space Layout >> Randomisation (KASLR) implementation in arm64 Linux, I've proposed a >> patch for the kernel which omits the ESR context from the signal

On 03/06/2018 08:58 PM, Will Deacon wrote: > Hi all, > > As part of some recent work to harden the Kernel Address Space Layout > Randomisation (KASLR) implementation in arm64 Linux, I've proposed a > patch for the kernel which omits the ESR context from the signal frame > if the faulting virtual address is outside the range of addresses which > can be mapped by userspace.

On Thu, Mar 8, 2018 at 9:11 AM, Will Deacon <will.deacon at arm.com> wrote: > Thanks for the replies. Some comments below. > > On Wed, Mar 07, 2018 at 11:40:41AM -0800, Evgenii Stepanov wrote: >> On Wed, Mar 7, 2018 at 7:48 AM, Dmitry Vyukov <dvyukov at google.com> wrote: >> > On Wed, Mar 7, 2018 at 4:39 PM, Andrey Ryabinin <aryabinin at virtuozzo.com>

Thanks for the replies. Some comments below. On Wed, Mar 07, 2018 at 11:40:41AM -0800, Evgenii Stepanov wrote: > On Wed, Mar 7, 2018 at 7:48 AM, Dmitry Vyukov <dvyukov at google.com> wrote: > > On Wed, Mar 7, 2018 at 4:39 PM, Andrey Ryabinin <aryabinin at virtuozzo.com> wrote: > >> On 03/06/2018 08:58 PM, Will Deacon wrote: > >>> Hi all, > >>>

On Wed, Mar 7, 2018 at 7:48 AM, Dmitry Vyukov <dvyukov at google.com> wrote: > On Wed, Mar 7, 2018 at 4:39 PM, Andrey Ryabinin <aryabinin at virtuozzo.com> wrote: >> On 03/06/2018 08:58 PM, Will Deacon wrote: >>> Hi all, >>> >>> As part of some recent work to harden the Kernel Address Space Layout >>> Randomisation (KASLR) implementation in

This patchset is ia64/xen domU patch take 10 which is rebased to 2.6.27-rc4. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate with

This patchset is ia64/xen domU patch take 10 which is rebased to 2.6.27-rc4. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate with

This patchset is ia64/xen domU patch take 11. Tony, please commit those patches. They are ready to commit because all the issues which were pointed out had been addressed and got enough reviews. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate

This patchset is ia64/xen domU patch take 11. Tony, please commit those patches. They are ready to commit because all the issues which were pointed out had been addressed and got enough reviews. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate

This patchset is ia64/xen domU patch take 12. Tony, please commit those patches. They are ready to commit because all the issues which were pointed out had been addressed and got enough reviews. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate

This patchset is ia64/xen domU patch take 12. Tony, please commit those patches. They are ready to commit because all the issues which were pointed out had been addressed and got enough reviews. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate

...ED */ +0: hlt + jmp 0b +#endif diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c index 2b2e47f..b649def 100644 --- a/sys/amd64/amd64/machdep.c +++ b/sys/amd64/amd64/machdep.c @@ -127,6 +127,7 @@ __FBSDID("$FreeBSD$"); #include <machine/reg.h> #include <machine/sigframe.h> #include <machine/specialreg.h> +#include <machine/sysarch.h> #ifdef PERFMON #include <machine/perfmon.h> #endif @@ -147,10 +148,20 @@ __FBSDID("$FreeBSD$"); #include <isa/isareg.h> #include <isa/rtc.h> +#ifdef XENHVM +/* Xen */ +#include <xe...

Hi Andi, This is a set of updates for the firstfloor patch queue. Quick rundown: revert-mm-x86_64-mm-account-for-module-percpu-space-separately-from-kernel-percpu.patch separate-module-percpu-space.patch Update the module percpu accounting patch fix-ff-allow-percpu-variables-to-be-page-aligned.patch Make sure the percpu memory allocation is page-aligned

Hi Andi, This is a set of updates for the firstfloor patch queue. Quick rundown: revert-mm-x86_64-mm-account-for-module-percpu-space-separately-from-kernel-percpu.patch separate-module-percpu-space.patch Update the module percpu accounting patch fix-ff-allow-percpu-variables-to-be-page-aligned.patch Make sure the percpu memory allocation is page-aligned

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. Changes from take 5 are rebased to Linux 2.6.26-rc3, bug fix ivt.S paravirtualization and multi entry point support. I believe these patches can be applied to the linux ia64 repository. This patchset does the followings. - Some preparation work. Mainly importing header files to

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. Changes from take 5 are rebased to Linux 2.6.26-rc3, bug fix ivt.S paravirtualization and multi entry point support. I believe these patches can be applied to the linux ia64 repository. This patchset does the followings. - Some preparation work. Mainly importing header files to

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. Please review and comments. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions