mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-14 12:49:08 +00:00
arm64: Ensure the instruction emulation is ready for userspace
We trap and emulate some instructions (e.g, mrs, deprecated instructions) for the userspace. However the handlers for these are registered as late_initcalls and the userspace could be up and running from the initramfs by that time (with populate_rootfs, which is a rootfs_initcall()). This could cause problems for the early applications ending up in failure like : [ 11.152061] modprobe[93]: undefined instruction: pc=0000ffff8ca48ff4 This patch promotes the specific calls to core_initcalls, which are guaranteed to be completed before we hit userspace. Cc: stable@vger.kernel.org Cc: Dave Martin <dave.martin@arm.com> Cc: Matthias Brugger <mbrugger@suse.com> Cc: James Morse <james.morse@arm.com> Reported-by: Matwey V. Kornilov <matwey.kornilov@gmail.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
parent
b02faed15d
commit
c0d8832e78
@ -649,4 +649,4 @@ static int __init armv8_deprecated_init(void)
|
||||
return 0;
|
||||
}
|
||||
|
||||
late_initcall(armv8_deprecated_init);
|
||||
core_initcall(armv8_deprecated_init);
|
||||
|
@ -1307,4 +1307,4 @@ static int __init enable_mrs_emulation(void)
|
||||
return 0;
|
||||
}
|
||||
|
||||
late_initcall(enable_mrs_emulation);
|
||||
core_initcall(enable_mrs_emulation);
|
||||
|
Loading…
Reference in New Issue
Block a user