Re: [PATCH v6 7/9] x86: Enable Syscall User Dispatch
From: Kees Cook <hidden>
Date: 2020-09-22 19:37:06
Also in:
linux-kselftest, lkml
On Fri, Sep 04, 2020 at 04:31:45PM -0400, Gabriel Krisman Bertazi wrote:
quoted hunk ↗ jump to hunk
Syscall User Dispatch requirements are fully supported in x86. This patch flips the switch, marking it as supported. This was tested against Syscall User Dispatch selftest. Signed-off-by: Gabriel Krisman Bertazi <redacted> --- arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+)diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 7101ac64bb20..56ac8de99021 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig@@ -150,6 +150,7 @@ config X86 select HAVE_ARCH_COMPAT_MMAP_BASES if MMU && COMPAT select HAVE_ARCH_PREL32_RELOCATIONS select HAVE_ARCH_SECCOMP_FILTER + select HAVE_ARCH_SYSCALL_USER_DISPATCH
Is this needed at all? I think simply "the architecture uses the generic entry code" is sufficient to enable it. (Especially since there's a top level config for SYSCALL_USER_DISPATCH, it feels like overkill). -- Kees Cook