From: "Edgecombe, Rick P" <rick.p.edgecombe@intel.com>
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Subject: Re: [PATCH RFC RFT v2 1/5] mm: Introduce ARCH_HAS_USER_SHADOW_STACK
Date: Tue, 14 Nov 2023 23:22:16 +0000 [thread overview]
Message-ID: <837fec017b9709eb42d35e9608c24619613ed221.camel@intel.com> (raw)
In-Reply-To: <20231114-clone3-shadow-stack-v2-1-b613f8681155@kernel.org>
On Tue, 2023-11-14 at 20:05 +0000, Mark Brown wrote:
> +config ARCH_HAS_USER_SHADOW_STACK
> + bool
> + help
> + The architecture has hardware support for userspace shadow
> call
> + stacks (eg, x86 CET, arm64 GCS, RISC-V Zisslpcfi).
I feel like normally a patch like this should come with the second
feature that gets enabled. (i.e. arm or riscv). Especially since the
comment lists currently unsupported features. I think something like
this got nixed by an x86 maintainer earlier, but that was before these
other features were getting pushed.
I don't have a strong objection to having it ahead of the other
features though and it is nice to remove X86 defines out of core code.
next prev parent reply other threads:[~2023-11-14 23:22 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-14 20:05 [PATCH RFC RFT v2 0/5] fork: Support shadow stacks in clone3() Mark Brown
2023-11-14 20:05 ` [PATCH RFC RFT v2 1/5] mm: Introduce ARCH_HAS_USER_SHADOW_STACK Mark Brown
2023-11-14 23:22 ` Edgecombe, Rick P [this message]
2023-11-15 14:55 ` Mark Brown
2023-11-15 15:12 ` David Hildenbrand
2023-11-15 15:36 ` Deepak Gupta
2023-11-14 20:05 ` [PATCH RFC RFT v2 2/5] fork: Add shadow stack support to clone3() Mark Brown
2023-11-15 0:45 ` Edgecombe, Rick P
2023-11-15 12:36 ` Mark Brown
2023-11-15 16:20 ` Szabolcs.Nagy
2023-11-15 18:43 ` Mark Brown
2023-11-16 0:52 ` Edgecombe, Rick P
2023-11-16 10:32 ` Szabolcs.Nagy
2023-11-16 12:33 ` Mark Brown
2023-11-16 13:12 ` Szabolcs.Nagy
2023-11-16 13:55 ` Szabolcs.Nagy
2023-11-16 15:35 ` Mark Brown
2023-11-16 18:11 ` Edgecombe, Rick P
2023-11-16 18:41 ` Mark Brown
2023-11-17 17:43 ` Edgecombe, Rick P
2023-11-20 16:11 ` Mark Brown
2023-11-16 18:14 ` Mark Brown
2023-11-16 18:33 ` Edgecombe, Rick P
2023-11-17 20:51 ` Deepak Gupta
2023-11-14 20:05 ` [PATCH RFC RFT v2 3/5] selftests/clone3: Factor more of main loop into test_clone3() Mark Brown
2023-11-14 20:05 ` [PATCH RFC RFT v2 4/5] selftests/clone3: Allow tests to flag if -E2BIG is a valid error code Mark Brown
2023-11-14 20:05 ` [PATCH RFC RFT v2 5/5] kselftest/clone3: Test shadow stack support Mark Brown
2023-11-14 23:11 ` Edgecombe, Rick P
2023-11-15 12:53 ` Mark Brown
2023-11-17 18:16 ` Edgecombe, Rick P
2023-11-17 21:12 ` Deepak Gupta
2023-11-20 15:47 ` Mark Brown
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