From: Catalin Marinas <catalin.marinas@arm.com>
To: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, will.deacon@arm.com,
marc.zyngier@arm.com, linux@dominikbrodowski.net,
hch@infradead.org, james.morse@arm.com, viro@zeniv.linux.org.uk,
linux-fsdevel@vger.kernel.org, dave.martin@arm.com
Subject: Re: [PATCHv3 00/19] arm64: invoke syscalls with pt_regs
Date: Tue, 19 Jun 2018 17:14:10 +0100 [thread overview]
Message-ID: <20180619161410.6in5qe5y3ydzbfit@armageddon.cambridge.arm.com> (raw)
In-Reply-To: <20180619153810.mm4yt3pqjagvjo7p@lakrids.cambridge.arm.com>
On Tue, Jun 19, 2018 at 04:38:10PM +0100, Mark Rutland wrote:
> From b47791fe74fce8bb48696ab0cdda48a9bae0e397 Mon Sep 17 00:00:00 2001
> From: Mark Rutland <mark.rutland@arm.com>
> Date: Tue, 19 Jun 2018 12:49:54 +0100
> Subject: [PATCH] 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>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
prev parent reply other threads:[~2018-06-19 16:14 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-18 12:02 [PATCHv3 00/19] arm64: invoke syscalls with pt_regs Mark Rutland
2018-06-18 12:02 ` [PATCHv3 01/19] arm64: consistently use unsigned long for thread flags Mark Rutland
2018-06-19 10:49 ` Catalin Marinas
2018-06-19 11:19 ` Mark Rutland
2018-06-18 12:02 ` [PATCHv3 02/19] arm64: move SCTLR_EL{1,2} assertions to <asm/sysreg.h> Mark Rutland
2018-06-19 11:02 ` [PATCHv3 02/19] arm64: move SCTLR_EL{1, 2} " Catalin Marinas
2018-06-19 11:48 ` [PATCHv3 02/19] arm64: move SCTLR_EL{1,2} " Mark Rutland
2018-06-18 12:02 ` [PATCHv3 03/19] arm64: introduce sysreg_clear_set() Mark Rutland
2018-06-19 11:44 ` Catalin Marinas
2018-06-19 11:47 ` Marc Zyngier
2018-06-18 12:02 ` [PATCHv3 04/19] arm64: kill config_sctlr_el1() Mark Rutland
2018-06-19 11:44 ` Catalin Marinas
2018-06-18 12:02 ` [PATCHv3 05/19] arm64: kill change_cpacr() Mark Rutland
2018-06-19 11:45 ` Catalin Marinas
2018-06-18 12:02 ` [PATCHv3 06/19] arm64: move sve_user_{enable,disable} to <asm/fpsimd.h> Mark Rutland
2018-06-19 12:00 ` [PATCHv3 06/19] arm64: move sve_user_{enable, disable} " Catalin Marinas
2018-06-19 12:19 ` Dave Martin
2018-06-18 12:02 ` [PATCHv3 07/19] arm64: remove sigreturn wrappers Mark Rutland
2018-06-19 12:47 ` Catalin Marinas
2018-06-18 12:02 ` [PATCHv3 08/19] arm64: convert raw syscall invocation to C Mark Rutland
2018-06-19 13:33 ` Catalin Marinas
2018-06-19 14:21 ` Catalin Marinas
2018-06-19 14:48 ` Mark Rutland
2018-06-19 14:55 ` Catalin Marinas
2018-06-19 14:58 ` Mark Rutland
2018-06-18 12:03 ` [PATCHv3 09/19] arm64: convert syscall trace logic " Mark Rutland
2018-06-19 14:32 ` Catalin Marinas
2018-06-19 15:14 ` Mark Rutland
2018-06-18 12:03 ` [PATCHv3 10/19] arm64: convert native/compat syscall entry " Mark Rutland
2018-06-19 12:18 ` Dave Martin
2018-06-19 13:15 ` Mark Rutland
2018-06-20 9:21 ` Dave Martin
2018-06-19 15:20 ` Catalin Marinas
2018-06-18 12:03 ` [PATCHv3 11/19] arm64: don't reload GPRs after apply_ssbd Mark Rutland
2018-06-19 15:23 ` Catalin Marinas
2018-06-18 12:03 ` [PATCHv3 12/19] arm64: zero GPRs upon entry from EL0 Mark Rutland
2018-06-19 15:24 ` Catalin Marinas
2018-06-18 12:03 ` [PATCHv3 13/19] kernel: add ksys_personality() Mark Rutland
2018-06-19 15:45 ` Catalin Marinas
2018-06-19 15:53 ` Mark Rutland
2018-06-18 12:03 ` [PATCHv3 14/19] kernel: add kcompat_sys_{f,}statfs64() Mark Rutland
2018-06-18 12:03 ` [PATCHv3 15/19] arm64: remove in-kernel call to sys_personality() Mark Rutland
2018-06-19 15:46 ` Catalin Marinas
2018-06-18 12:03 ` [PATCHv3 16/19] arm64: use {COMPAT,}SYSCALL_DEFINE0 for sigreturn Mark Rutland
2018-06-19 15:48 ` Catalin Marinas
2018-06-18 12:03 ` [PATCHv3 17/19] arm64: use SYSCALL_DEFINE6() for mmap Mark Rutland
2018-06-19 15:50 ` Catalin Marinas
2018-06-18 12:03 ` [PATCHv3 18/19] arm64: convert compat wrappers to C Mark Rutland
2018-06-19 15:51 ` Catalin Marinas
2018-06-18 12:03 ` [PATCHv3 19/19] arm64: implement syscall wrappers Mark Rutland
2018-06-19 16:13 ` Catalin Marinas
2018-06-19 15:38 ` [PATCHv3 00/19] arm64: invoke syscalls with pt_regs Mark Rutland
2018-06-19 16:14 ` Catalin Marinas [this message]
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