From: geoff@infradead.org (Geoff Levand)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v15 03/20] arm64: Convert hcalls to use HVC immediate value
Date: Thu, 17 Mar 2016 09:47:51 -0700 [thread overview]
Message-ID: <1458233271.3391.40.camel@infradead.org> (raw)
In-Reply-To: <56E96920.3090701@arm.com>
Hi Marc,
On Wed, 2016-03-16 at 14:09 +0000, Marc Zyngier wrote:
> This seems to go in a direction that is diametrically opposite the
> the
> "normal" ARM way. That doesn't make it an invalid approach, but
> uniformity with other APIs (PSCI for example) and the 32bit KVM code
> seems a highly desirable feature (given that I'll end up maintaining
> that code).
We need a way to get the CPU back to the exception level it had on
entry to the kernel, and this hcall change is part of my proposed
solution. If you could outline something you think would be a better
fit, I'll take that and work on an implementation of it.
-Geoff
next prev parent reply other threads:[~2016-03-17 16:47 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-14 17:47 [PATCH v15 00/20] arm64 kexec kernel patches v15 Geoff Levand
2016-03-14 17:48 ` [PATCH v15 07/20] arm64: Promote KERNEL_START/KERNEL_END definitions to a header file Geoff Levand
2016-03-14 17:48 ` [PATCH v15 13/20] arm64/kexec: Enable kexec in the arm64 defconfig Geoff Levand
2016-03-14 17:48 ` [PATCH v15 08/20] arm64: Add new asm macro copy_page Geoff Levand
2016-03-14 17:48 ` [PATCH v15 06/20] arm64: kernel: Include _AC definition in page.h Geoff Levand
2016-03-14 17:48 ` [PATCH v15 02/20] arm64: Cleanup SCTLR flags Geoff Levand
2016-03-14 17:48 ` [PATCH v15 11/20] Revert "arm64: remove dead code" Geoff Levand
2016-03-14 17:48 ` [PATCH v15 10/20] Revert "arm64: mm: remove unused cpu_set_idmap_tcr_t0sz function" Geoff Levand
2016-03-14 17:48 ` [PATCH v15 09/20] arm64: Add back cpu_reset routines Geoff Levand
2016-03-14 17:48 ` [PATCH v15 12/20] arm64/kexec: Add core kexec support Geoff Levand
2016-03-14 17:48 ` [PATCH v15 03/20] arm64: Convert hcalls to use HVC immediate value Geoff Levand
2016-03-15 13:50 ` Dave Martin
2016-03-15 18:15 ` Geoff Levand
2016-03-16 13:50 ` Dave Martin
2016-03-16 14:09 ` Marc Zyngier
2016-03-17 16:47 ` Geoff Levand [this message]
2016-03-14 17:48 ` [PATCH v15 04/20] arm64: Add new hcall HVC_CALL_FUNC Geoff Levand
2016-03-14 17:48 ` [PATCH v15 01/20] arm64: Fold proc-macros.S into assembler.h Geoff Levand
2016-03-14 17:48 ` [PATCH v15 05/20] arm64: kvm: allows kvm cpu hotplug Geoff Levand
2016-03-14 17:48 ` [PATCH v15 17/20] arm64: kdump: implement machine_crash_shutdown() Geoff Levand
2016-03-18 18:08 ` James Morse
2016-03-21 13:29 ` James Morse
2016-03-31 7:57 ` AKASHI Takahiro
2016-03-31 8:12 ` Marc Zyngier
2016-03-31 10:10 ` Mark Rutland
2016-04-01 8:45 ` AKASHI Takahiro
2016-04-01 9:36 ` Mark Rutland
2016-04-04 9:27 ` AKASHI Takahiro
2016-03-31 7:46 ` AKASHI Takahiro
2016-03-31 10:22 ` James Morse
2016-03-14 17:48 ` [PATCH v15 14/20] arm64/kexec: Add pr_debug output Geoff Levand
2016-03-14 17:48 ` [PATCH v15 20/20] arm64: kdump: update a kernel doc Geoff Levand
2016-03-14 17:48 ` [PATCH v15 19/20] arm64: kdump: enable kdump in the arm64 defconfig Geoff Levand
2016-03-14 17:48 ` [PATCH v15 18/20] arm64: kdump: add kdump support Geoff Levand
2016-03-14 17:48 ` [PATCH v15 16/20] arm64: limit memory regions based on DT property, usable-memory Geoff Levand
2016-03-14 17:48 ` [PATCH v15 15/20] arm64: kdump: reserve memory for crash dump kernel Geoff Levand
2016-03-18 18:08 ` James Morse
2016-03-31 7:19 ` AKASHI Takahiro
2016-04-01 6:16 ` AKASHI Takahiro
2016-04-01 1:59 ` [PATCH v15 00/20] arm64 kexec kernel patches v15 Dave Young
2016-04-01 18:39 ` Geoff Levand
2016-05-17 5:42 ` Dave Young
2016-05-17 8:06 ` Marc Zyngier
2016-05-17 9:07 ` AKASHI Takahiro
2016-05-18 2:09 ` Dave Young
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