From: Mark Brown <broonie@kernel.org>
To: "Edgecombe, Rick P" <rick.p.edgecombe@intel.com>
Cc: "corbet@lwn.net" <corbet@lwn.net>,
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Subject: Re: [PATCH v6 16/33] riscv/shstk: If needed allocate a new shadow stack on clone
Date: Wed, 9 Oct 2024 11:25:31 +0100 [thread overview]
Message-ID: <ZwZaG3NT72BwYxJO@finisterre.sirena.org.uk> (raw)
In-Reply-To: <aa75cbd142c51b996423f18769d8b8d7ecc39081.camel@intel.com>
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On Tue, Oct 08, 2024 at 10:55:29PM +0000, Edgecombe, Rick P wrote:
> A lot of this patch and the previous one is similar to x86's and arm's. It great
> that we can have consistency around this behavior.
> There might be enough consistency to refactor some of the arch code into a
> kernel/shstk.c.
> Should we try?
I think so - I think we discussed it before. I was thinking of looking
at it once the clone3() stuff settles down, I don't want to trigger any
unneeded refectorings there and cause further delays.
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next prev parent reply other threads:[~2024-10-09 10:25 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-08 22:36 [PATCH v6 00/33] riscv control-flow integrity for usermode Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 01/33] mm: Introduce ARCH_HAS_USER_SHADOW_STACK Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 02/33] mm: helper `is_shadow_stack_vma` to check shadow stack vma Deepak Gupta
2024-10-09 11:11 ` Mark Brown
2024-10-08 22:36 ` [PATCH v6 03/33] riscv: Enable cbo.zero only when all harts support Zicboz Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 04/33] riscv: Add support for per-thread envcfg CSR values Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 05/33] riscv: Call riscv_user_isa_enable() only on the boot hart Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 06/33] riscv/Kconfig: enable HAVE_EXIT_THREAD for riscv Deepak Gupta
2024-10-09 11:28 ` Mark Brown
2024-10-29 22:06 ` Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 07/33] dt-bindings: riscv: zicfilp and zicfiss in dt-bindings (extensions.yaml) Deepak Gupta
2024-10-25 21:58 ` Rob Herring (Arm)
2024-10-08 22:36 ` [PATCH v6 08/33] riscv: zicfiss / zicfilp enumeration Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 09/33] riscv: zicfiss / zicfilp extension csr and bit definitions Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 10/33] riscv: usercfi state for task and save/restore of CSR_SSP on trap entry/exit Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 11/33] riscv/mm : ensure PROT_WRITE leads to VM_READ | VM_WRITE Deepak Gupta
2024-10-09 13:36 ` Lorenzo Stoakes
2024-10-10 0:02 ` Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 12/33] riscv mm: manufacture shadow stack pte Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 13/33] riscv mmu: teach pte_mkwrite to manufacture shadow stack PTEs Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 14/33] riscv mmu: write protect and shadow stack Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 15/33] riscv/mm: Implement map_shadow_stack() syscall Deepak Gupta
2024-10-08 22:36 ` [PATCH v6 16/33] riscv/shstk: If needed allocate a new shadow stack on clone Deepak Gupta
2024-10-08 22:55 ` Edgecombe, Rick P
2024-10-08 23:17 ` Deepak Gupta
2024-10-08 23:31 ` Edgecombe, Rick P
2024-10-09 10:25 ` Mark Brown [this message]
2024-10-08 22:36 ` [PATCH v6 17/33] prctl: arch-agnostic prctl for shadow stack Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 18/33] prctl: arch-agnostic prctl for indirect branch tracking Deepak Gupta
2024-10-09 11:03 ` Mark Brown
2024-10-08 22:37 ` [PATCH v6 19/33] riscv: Implements arch agnostic shadow stack prctls Deepak Gupta
2024-10-09 12:44 ` Mark Brown
2024-10-08 22:37 ` [PATCH v6 20/33] riscv: Implements arch agnostic indirect branch tracking prctls Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 21/33] riscv/traps: Introduce software check exception Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 22/33] riscv: signal: abstract header saving for setup_sigcontext Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 23/33] riscv/signal: save and restore of shadow stack for signal Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 24/33] riscv/kernel: update __show_regs to print shadow stack register Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 25/33] riscv/ptrace: riscv cfi status and state via ptrace and in core files Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 26/33] riscv/hwprobe: zicfilp / zicfiss enumeration in hwprobe Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 27/33] riscv: Add Firmware Feature SBI extensions definitions Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 28/33] riscv: enable kernel access to shadow stack memory via FWFT sbi call Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 29/33] riscv: kernel command line option to opt out of user cfi Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 30/33] riscv: create a config for shadow stack and landing pad instr support Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 31/33] riscv: Documentation for landing pad / indirect branch tracking Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 32/33] riscv: Documentation for shadow stack on riscv Deepak Gupta
2024-10-08 22:37 ` [PATCH v6 33/33] kselftest/riscv: kselftest for user mode cfi Deepak Gupta
2024-10-11 5:44 ` Zong Li
2024-10-11 10:18 ` Mark Brown
2024-10-11 11:43 ` Zong Li
2024-10-11 19:45 ` Deepak Gupta
2024-10-14 14:33 ` Zong Li
2024-10-09 11:05 ` [PATCH v6 00/33] riscv control-flow integrity for usermode Mark Brown
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