| commit | d9be03256d745360a859b11091e5a43f7828382b | |
| author | Mark Rutland <mark.rutland@arm.com> | |
| Wed, 11 Jul 2018 13:56:46 +0000 (11 14:56 +0100) | ||
| committer | Will Deacon <will.deacon@arm.com> | |
| Thu, 12 Jul 2018 13:49:47 +0000 (12 14:49 +0100) | ||
| tree | 79002ebd5411c6bcf9110ebef6f6b89dfce87f3d | treesnapshot (tar.gz zip) |
| parent | 3b7142752e4bee153df6db4a76ca104ef0d7c0b4 | commitdiff |
arm64: don't restore GPRs when context tracking
Now that syscalls are invoked with pt_regs, we no longer need to ensure
that the argument regsiters are live in the entry assembly, and it's
fine to not restore them after context_tracking_user_exit() has
corrupted them.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Now that syscalls are invoked with pt_regs, we no longer need to ensure
that the argument regsiters are live in the entry assembly, and it's
fine to not restore them after context_tracking_user_exit() has
corrupted them.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
| arch/arm64/kernel/entry.S | diffblobblamehistory |