From: Julien Grall <julien.grall@arm.com>
To: Daniel Kiper <daniel.kiper@oracle.com>, xen-devel@lists.xenproject.org
Cc: jgross@suse.com, sstabellini@kernel.org,
andrew.cooper3@citrix.com, cardoe@cardoe.com,
pgnet.dev@gmail.com, ning.sun@intel.com, david.vrabel@citrix.com,
jbeulich@suse.com, qiaowei.ren@intel.com, gang.wei@intel.com,
fu.wei@linaro.org
Subject: Re: [PATCH RFC v7 07/14] efi: create new early memory allocator
Date: Sat, 24 Sep 2016 00:35:33 +0100 [thread overview]
Message-ID: <98dec8a7-d30e-8bb9-d397-db7744f4b515@arm.com> (raw)
In-Reply-To: <1474667259-27290-8-git-send-email-daniel.kiper@oracle.com>
Hi Daniel,
On 23/09/2016 22:47, Daniel Kiper wrote:
> diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c
> index 38eb888..2085f35 100644
> --- a/xen/arch/arm/setup.c
> +++ b/xen/arch/arm/setup.c
> @@ -38,6 +38,7 @@
> #include <xen/vmap.h>
> #include <xen/libfdt/libfdt.h>
> #include <xen/acpi.h>
> +#include <xen/efi.h>
> #include <asm/alternative.h>
> #include <asm/page.h>
> #include <asm/current.h>
> @@ -66,6 +67,7 @@ integer_param("xenheap_megabytes", opt_xenheap_megabytes);
>
> static __used void init_done(void)
> {
> + free_ebmalloc_unused_mem();
I said no to this on the previous version. And I think Jan suggested a
per-arch way to do it. So why is it here?
As mentioned, the EFI stub is standalone and should stay as it for now.
With this solution, you break this assumption. I explained why it should
not be done, and the issue you will run into by doing that.
So please don't call a function on ARM where it is known that it will
not work.
Also, the EFI is not mandatory on ARM, for instance this code will not
build on ARM32.
I much prefer a TODO comment (around the #ifdef CONFIG_ARM) to say what
needs to be done for the time being.
Regards,
--
Julien Grall
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next prev parent reply other threads:[~2016-09-23 23:35 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-23 21:47 [PATCH v7 00/14] x86: multiboot2 protocol support Daniel Kiper
2016-09-23 21:47 ` [PATCH v7 01/14] x86: move xen ELF end of image to 16 MiB Daniel Kiper
2016-09-26 10:39 ` Jan Beulich
2016-09-26 11:34 ` Daniel Kiper
2016-09-26 12:32 ` Jan Beulich
2016-09-27 17:42 ` Daniel Kiper
2016-09-23 21:47 ` [PATCH v7 02/14] x86: properly calculate xen ELF end of image address Daniel Kiper
2016-09-26 10:45 ` Jan Beulich
2016-09-26 12:06 ` Daniel Kiper
2016-09-26 12:34 ` Jan Beulich
2016-09-23 21:47 ` [PATCH v7 03/14] x86: add multiboot2 protocol support Daniel Kiper
2016-09-26 13:18 ` Jan Beulich
2016-09-23 21:47 ` [PATCH v7 04/14] efi: create efi_enabled() Daniel Kiper
2016-09-23 21:47 ` [PATCH v7 05/14] x86: allow EFI reboot method neither on EFI platforms Daniel Kiper
2016-09-23 21:47 ` [PATCH v7 06/14] efi: build xen.gz with EFI code Daniel Kiper
2016-09-23 21:47 ` [PATCH RFC v7 07/14] efi: create new early memory allocator Daniel Kiper
2016-09-23 23:35 ` Julien Grall [this message]
2016-09-26 6:53 ` Jan Beulich
2016-09-26 20:01 ` Julien Grall
2016-09-27 8:06 ` Jan Beulich
2016-09-27 23:23 ` Julien Grall
2016-09-26 13:37 ` Jan Beulich
2016-09-27 17:49 ` Daniel Kiper
2016-09-28 8:48 ` Jan Beulich
2016-09-23 21:47 ` [PATCH v7 08/14] x86: add multiboot2 protocol support for EFI platforms Daniel Kiper
2016-09-26 13:47 ` Jan Beulich
2016-09-27 18:11 ` Daniel Kiper
2016-09-28 8:57 ` Jan Beulich
2016-09-28 9:39 ` Daniel Kiper
2016-09-28 10:16 ` Jan Beulich
2016-09-26 14:19 ` Andrew Cooper
2016-09-26 14:33 ` Jan Beulich
2016-09-26 14:40 ` Andrew Cooper
2016-09-26 15:12 ` Jan Beulich
2016-09-27 18:21 ` Daniel Kiper
2016-09-28 8:58 ` Jan Beulich
2016-09-23 21:47 ` [PATCH v7 09/14] x86/boot: implement early command line parser in C Daniel Kiper
2016-09-26 13:49 ` Jan Beulich
2016-09-23 21:47 ` [PATCH v7 10/14] x86: change default load address from 1 MiB to 2 MiB Daniel Kiper
2016-09-23 21:47 ` [PATCH v7 11/14] x86/setup: use XEN_IMG_OFFSET instead of Daniel Kiper
2016-09-23 21:47 ` [PATCH v7 12/14] x86: make Xen early boot code relocatable Daniel Kiper
2016-09-26 15:03 ` Jan Beulich
2016-09-27 19:55 ` Daniel Kiper
2016-09-28 9:06 ` Jan Beulich
2016-09-28 9:56 ` Daniel Kiper
2016-09-28 10:19 ` Jan Beulich
2016-09-23 21:47 ` [PATCH v7 13/14] x86/boot: rename sym_phys() to sym_offs() Daniel Kiper
2016-09-26 15:47 ` Jan Beulich
2016-09-23 21:47 ` [PATCH v7 14/14] x86: add multiboot2 protocol support for relocatable images Daniel Kiper
2016-09-26 15:53 ` Jan Beulich
2016-09-27 20:07 ` Daniel Kiper
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