Re: [PATCH v2] arch: Reserve map_shadow_stack() syscall number for all architectures

2023-10-07 Thread Sohil Mehta
On 10/6/2023 1:29 PM, Arnd Bergmann wrote: > On Fri, Oct 6, 2023, at 22:01, Edgecombe, Rick P wrote: >> Hi Arnd, >> >> It doesn't look like anyone is pouncing on the syscall number in linux- >> next currently. It might be nice to have this patch go through linux- >> next since it touches so many

Re: [PATCH v2] arch: Reserve map_shadow_stack() syscall number for all architectures

2023-10-07 Thread Arnd Bergmann
On Fri, Oct 6, 2023, at 22:01, Edgecombe, Rick P wrote: > On Tue, 2023-10-03 at 10:18 -0700, Sohil Mehta wrote: >> > If you like, I can pick this up for 6.7 through the asm-generic >> > tree. If you think this should be part of 6.6, I would suggest >> > to merge it through the tree that originally

Re: [PATCH v2] arch: Reserve map_shadow_stack() syscall number for all architectures

2023-10-07 Thread Edgecombe, Rick P
On Tue, 2023-10-03 at 10:18 -0700, Sohil Mehta wrote: > > If you like, I can pick this up for 6.7 through the asm-generic > > tree. If you think this should be part of 6.6, I would suggest > > to merge it through the tree that originally contained the > > syscall code. > > > > Dave, Ingo, would

Re: [PATCH v2] arch: Reserve map_shadow_stack() syscall number for all architectures

2023-10-04 Thread Catalin Marinas
On Thu, Sep 14, 2023 at 06:58:03PM +, Sohil Mehta wrote: > commit c35559f94ebc ("x86/shstk: Introduce map_shadow_stack syscall") > recently added support for map_shadow_stack() but it is limited to x86 > only for now. There is a possibility that other architectures (namely, > arm64 and

Re: [PATCH v2] arch: Reserve map_shadow_stack() syscall number for all architectures

2023-10-03 Thread Geert Uytterhoeven
On Thu, Sep 14, 2023 at 8:59 PM Sohil Mehta wrote: > commit c35559f94ebc ("x86/shstk: Introduce map_shadow_stack syscall") > recently added support for map_shadow_stack() but it is limited to x86 > only for now. There is a possibility that other architectures (namely, > arm64 and RISC-V), that

Re: [PATCH v2] arch: Reserve map_shadow_stack() syscall number for all architectures

2023-10-03 Thread Sohil Mehta
On 10/3/2023 9:54 AM, Arnd Bergmann wrote: > On Tue, Oct 3, 2023, at 18:35, Sohil Mehta wrote: >> >> Gentle ping... >> >> Are there any additional comments? It applies cleanly on 6.6-rc4. >> >> Or does it seem ready to be merged? It has the following >> acknowledgements until now: >> >>

Re: [PATCH v2] arch: Reserve map_shadow_stack() syscall number for all architectures

2023-10-03 Thread Arnd Bergmann
On Tue, Oct 3, 2023, at 18:35, Sohil Mehta wrote: > On 9/14/2023 11:58 AM, Sohil Mehta wrote: >> commit c35559f94ebc ("x86/shstk: Introduce map_shadow_stack syscall") >> recently added support for map_shadow_stack() but it is limited to x86 >> only for now. There is a possibility that other

Re: [PATCH v2] arch: Reserve map_shadow_stack() syscall number for all architectures

2023-10-03 Thread Sohil Mehta
On 9/14/2023 11:58 AM, Sohil Mehta wrote: > commit c35559f94ebc ("x86/shstk: Introduce map_shadow_stack syscall") > recently added support for map_shadow_stack() but it is limited to x86 > only for now. There is a possibility that other architectures (namely, > arm64 and RISC-V), that are

Re: [PATCH v2] arch: Reserve map_shadow_stack() syscall number for all architectures

2023-09-15 Thread Michael Ellerman
Sohil Mehta writes: > commit c35559f94ebc ("x86/shstk: Introduce map_shadow_stack syscall") > recently added support for map_shadow_stack() but it is limited to x86 > only for now. There is a possibility that other architectures (namely, > arm64 and RISC-V), that are implementing equivalent

Re: [PATCH v2] arch: Reserve map_shadow_stack() syscall number for all architectures

2023-09-14 Thread Edgecombe, Rick P
On Thu, 2023-09-14 at 18:58 +, Sohil Mehta wrote: > commit c35559f94ebc ("x86/shstk: Introduce map_shadow_stack syscall") > recently added support for map_shadow_stack() but it is limited to > x86 > only for now. There is a possibility that other architectures > (namely, > arm64 and RISC-V),

[PATCH v2] arch: Reserve map_shadow_stack() syscall number for all architectures

2023-09-14 Thread Sohil Mehta
commit c35559f94ebc ("x86/shstk: Introduce map_shadow_stack syscall") recently added support for map_shadow_stack() but it is limited to x86 only for now. There is a possibility that other architectures (namely, arm64 and RISC-V), that are implementing equivalent support for shadow stacks, might