From: Ian Campbell <Ian.Campbell@citrix.com>
To: Dave Martin <dave.martin@linaro.org>
Cc: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
"linaro-dev@lists.linaro.org" <linaro-dev@lists.linaro.org>,
"arnd@arndb.de" <arnd@arndb.de>,
"catalin.marinas@arm.com" <catalin.marinas@arm.com>,
David Vrabel <david.vrabel@citrix.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH-WIP 01/13] xen/arm: use r12 to pass the hypercall number to the hypervisor
Date: Tue, 28 Feb 2012 10:07:15 +0000 [thread overview]
Message-ID: <1330423635.31269.40.camel@zakaz.uk.xensource.com> (raw)
In-Reply-To: <20120228094616.GA2063@linaro.org>
On Tue, 2012-02-28 at 09:46 +0000, Dave Martin wrote:
> On Mon, Feb 27, 2012 at 07:48:45PM +0000, Ian Campbell wrote:
> > Given that Stefano is proposing to make the ISS a (per-hypervisor)
> > constant we could consider just defining the Thumb and non-Thumb
> > constants instead of doing all the construction with the __HVC_IMM stuff
> > -- that would remove a big bit of the macroization.
>
> It's not quite as simple as that -- emitting instructions using data
> directives is not endianness safe, and even in the cases where .long gives
> the right result for ARM, it gives the wrong result for 32-bit Thumb
> instructions if the opcode is given in human-readable order.
Urk, yes,..
> I was trying to solve the same problem for the kvm guys with some global
> macros -- I'm aiming to get a patch posted soon, so I'll make sure
> you're on CC.
Awesome, thanks!
Ian.
next prev parent reply other threads:[~2012-02-28 10:07 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-23 17:47 [PATCH-WIP 00/13] xen/arm: receive Xen events and initialize xenbus Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 01/13] xen/arm: use r12 to pass the hypercall number to the hypervisor Stefano Stabellini
2012-02-27 16:27 ` Ian Campbell
2012-02-27 18:03 ` Dave Martin
2012-02-27 19:33 ` Ian Campbell
2012-02-28 10:20 ` Dave Martin
2012-02-28 10:48 ` Ian Campbell
2012-02-28 12:28 ` Stefano Stabellini
2012-02-29 9:34 ` Dave Martin
2012-02-29 9:56 ` Ian Campbell
2012-02-29 11:47 ` Dave Martin
2012-02-29 12:58 ` Dave Martin
2012-02-29 14:44 ` Ian Campbell
2012-03-01 9:35 ` Dave Martin
2012-03-01 10:12 ` Russell King - ARM Linux
2012-03-02 21:19 ` Nicolas Pitre
2012-02-29 14:52 ` Stefano Stabellini
2012-03-01 9:51 ` Dave Martin
2012-03-01 10:10 ` Russell King - ARM Linux
2012-03-01 10:27 ` Dave Martin
2012-03-01 10:35 ` Russell King - ARM Linux
2012-03-01 12:12 ` Stefano Stabellini
2012-03-02 21:15 ` Nicolas Pitre
2012-03-08 9:58 ` Richard Earnshaw
2012-03-08 12:17 ` Dave Martin
2012-03-08 17:21 ` Nicolas Pitre
2012-03-08 18:47 ` Richard Earnshaw
2012-03-09 15:58 ` Dave Martin
2012-03-09 16:20 ` Nicolas Pitre
2012-03-09 17:38 ` Richard Earnshaw
2012-02-27 21:05 ` Peter Maydell
2012-02-28 10:12 ` Ian Campbell
2012-02-27 17:53 ` Dave Martin
2012-02-27 19:48 ` Ian Campbell
2012-02-28 9:46 ` Dave Martin
2012-02-28 10:07 ` Ian Campbell [this message]
2012-02-28 12:21 ` Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 02/13] xen/arm: introduce privcmp, physdev_op and memory_op hypercalls Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 03/13] xen/arm: mmu.h and page.h related definitions Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 04/13] xen/arm: sync_bitops Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 05/13] xen/arm: empty implementation of grant_table arch specific functions Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 06/13] xen/arm: missing includes Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 07/13] xen/arm: receive xen events on arm Stefano Stabellini
2012-02-24 11:12 ` David Vrabel
2012-02-24 12:23 ` Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 08/13] xen/arm: fix arm xen guest handle definitions Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 09/13] xen/arm: shared_info and start_info Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 10/13] xen/arm: empty implementation of xen_remap_domain_mfn_range Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 11/13] xen/arm: Introduce xen_pfn_t for pfn and mfn types Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 12/13] xen/arm: compile and run xenbus Stefano Stabellini
2012-02-23 17:48 ` [PATCH-WIP 13/13] xen/arm: compile grant-table features events and xenbus, do not compile pci Stefano Stabellini
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