From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Tamas K Lengyel <tklengyel@sec.in.tum.de>, xen-devel@lists.xen.org
Cc: wei.liu2@citrix.com, ian.campbell@citrix.com,
stefano.stabellini@eu.citrix.com, tim@xen.org,
julien.grall@linaro.org, ian.jackson@eu.citrix.com,
stefano.stabellini@citrix.com, keir@xen.org
Subject: Re: [PATCH V15 5/9] xen: Make gpfn related memops compatible with wider return values
Date: Mon, 20 Apr 2015 16:22:29 +0100 [thread overview]
Message-ID: <553519B5.8090202@citrix.com> (raw)
In-Reply-To: <1429542384-23905-6-git-send-email-tklengyel@sec.in.tum.de>
On 20/04/15 16:06, Tamas K Lengyel wrote:
> The current implementation of three memops, XENMEM_current_reservation,
> XENMEM_maximum_reservation and XENMEM_maximum_gpfn return values as an
> int. However, in ARM64 we could potentially have 36-bit pfn's, thus
> in preparation for the ARM patch, in this patch we update the existing
> memop routines to use a struct, xen_get_gpfn, to exchange the gpfn info
> as a uin64_t.
>
> This patch also adds error checking on the toolside in case the memop
> fails.
>
> Signed-off-by: Tamas K Lengyel <tklengyel@sec.in.tum.de>
XENMEM, unlikely domctls/sysctls is a guest-visible stable ABI/API.
You cannot make adjustments like this, but you can add a brand new op
with appropriate parameters and list the old ops as deprecated.
~Andrew
next prev parent reply other threads:[~2015-04-20 15:22 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-20 15:06 [PATCH V15 0/9] Mem_access for ARM Tamas K Lengyel
2015-04-20 15:06 ` [PATCH V15 1/9] xen/arm: groundwork for mem_access support on ARM Tamas K Lengyel
2015-04-20 15:06 ` [PATCH V15 2/9] xen/arm: Allow hypervisor access to mem_access protected pages Tamas K Lengyel
2015-04-21 13:14 ` Ian Campbell
2015-04-21 14:10 ` Tamas K Lengyel
2015-04-21 14:22 ` Ian Campbell
2015-04-20 15:06 ` [PATCH V15 3/9] xen/arm: Data abort exception (R/W) mem_access events Tamas K Lengyel
2015-04-21 13:16 ` Ian Campbell
2015-04-20 15:06 ` [PATCH V15 4/9] xen/arm: Instruction prefetch abort (X) mem_access event handling Tamas K Lengyel
2015-04-21 13:19 ` Ian Campbell
2015-04-20 15:06 ` [PATCH V15 5/9] xen: Make gpfn related memops compatible with wider return values Tamas K Lengyel
2015-04-20 15:22 ` Andrew Cooper [this message]
2015-04-20 15:25 ` Tamas K Lengyel
2015-04-21 13:23 ` Ian Campbell
2015-04-21 14:14 ` Jan Beulich
2015-04-21 14:24 ` Ian Campbell
2015-04-21 14:29 ` Jan Beulich
2015-04-21 14:42 ` Tamas K Lengyel
2015-04-21 15:13 ` Jan Beulich
2015-04-21 15:21 ` Tamas K Lengyel
2015-04-25 16:54 ` Julien Grall
2015-04-27 7:02 ` Jan Beulich
2015-04-27 10:18 ` Julien Grall
2015-04-21 14:47 ` Ian Campbell
2015-04-21 14:33 ` Tamas K Lengyel
2015-04-21 14:41 ` Jan Beulich
2015-04-20 15:06 ` [PATCH V15 6/9] xen/arm: Implement domain_get_maximum_gpfn Tamas K Lengyel
2015-04-21 13:24 ` Ian Campbell
2015-04-20 15:06 ` [PATCH V15 7/9] tools/libxc: Allocate magic page for mem access on ARM Tamas K Lengyel
2015-04-20 15:06 ` [PATCH V15 8/9] tools/tests: Enable xen-access " Tamas K Lengyel
2015-04-21 13:28 ` Ian Campbell
2015-04-21 14:13 ` Tamas K Lengyel
2015-04-20 15:06 ` [PATCH V15 9/9] xen/arm: Enable mem_access " Tamas K Lengyel
2015-04-22 13:29 ` [PATCH V15 0/9] Mem_access for ARM Ian Campbell
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