From: "Jan Beulich" <JBeulich@suse.com>
To: Anthony PERARD <anthony.perard@citrix.com>
Cc: Keir Fraser <keir@xen.org>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>,
xen-devel@lists.xen.org, Wei Liu <wei.liu2@citrix.com>
Subject: Re: [PATCH v4 09/14] hvmloader: Check modules whereabouts in perform_tests
Date: Tue, 05 Apr 2016 07:07:27 -0600 [thread overview]
Message-ID: <5703D4AF02000078000E32D5@prv-mh.provo.novell.com> (raw)
In-Reply-To: <1457978150-27201-10-git-send-email-anthony.perard@citrix.com>
>>> On 14.03.16 at 18:55, <anthony.perard@citrix.com> wrote:
> As perform_tests() is going to clear memory past 4MB, we check that the
> memory can be use or we skip the tests.
>
> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
> ---
> Changes in v4:
> - move the check into the perform_test() function.
> - skip tests instead of using BUG.
>
> New in V3
> ---
> tools/firmware/hvmloader/tests.c | 20 ++++++++++++++++++++
> 1 file changed, 20 insertions(+)
>
> diff --git a/tools/firmware/hvmloader/tests.c
> b/tools/firmware/hvmloader/tests.c
> index fea3ad3..7996206 100644
> --- a/tools/firmware/hvmloader/tests.c
> +++ b/tools/firmware/hvmloader/tests.c
> @@ -210,6 +210,26 @@ void perform_tests(void)
> return;
> }
>
> + /* Check that tests does not use memory where modules are stored */
> + if ( ((uint32_t)hvm_start_info + sizeof(struct hvm_start_info)) > 4 << 20
if ( (uint32_t)(hvm_start_info + 1) > (4 << 20)
> + && (uint32_t)hvm_start_info < 8 << 20 )
Missing parentheses around operands of <<. Also commonly the
&& would belong on the previous line.
> + {
> + printf("Skipping tests due to memory used by hvm_start_info\n");
> + return;
> + }
> + for ( unsigned i = 0; i < hvm_start_info->nr_modules; i++ )
Bogus shadowing of an outer scope variable. And we prefer not to
use this C99 declaration style anyway.
> + {
> + const struct hvm_modlist_entry *modlist =
> + (struct hvm_modlist_entry *)hvm_start_info->modlist_paddr;
> + if ( modlist[i].paddr
Blank line ...
> + && modlist[i].paddr + modlist[i].size > 4ul << 20
> + && modlist[i].paddr < 8ul << 20 )
Parentheses ... Also, why the ul suffixed here but not above?
Please be consistent.
> + {
> + printf("Skipping tests due to memory used by a module\n");
How about at least printing the module index as well?
> + return;
> + }
> + }
How about cmdline_paddr (both variant) and rsdp_paddr?
Jan
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next prev parent reply other threads:[~2016-04-05 13:07 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-14 17:55 [PATCH v4 00/14] Load BIOS via toolstack instead of been embedded in hvmloader Anthony PERARD
2016-03-14 17:55 ` [PATCH v4 01/14] libxc: Rework extra module initialisation Anthony PERARD
2016-03-16 0:06 ` Konrad Rzeszutek Wilk
2016-03-17 16:24 ` Anthony PERARD
2016-03-14 17:55 ` [PATCH v4 02/14] libxc: Prepare a start info structure for hvmloader Anthony PERARD
2016-03-16 0:18 ` Konrad Rzeszutek Wilk
2016-03-16 18:01 ` Boris Ostrovsky
2016-03-17 16:48 ` Anthony PERARD
2016-03-17 16:28 ` Anthony PERARD
2016-03-14 17:55 ` [PATCH v4 03/14] configure: #define SEABIOS_PATH and OVMF_PATH Anthony PERARD
2016-03-16 0:20 ` Konrad Rzeszutek Wilk
2016-04-08 13:38 ` Wei Liu
2016-03-14 17:55 ` [PATCH v4 04/14] firmware/makefile: install BIOS blob Anthony PERARD
2016-03-16 0:26 ` Konrad Rzeszutek Wilk
2016-03-16 8:54 ` Dario Faggioli
2016-03-16 8:56 ` Konrad Rzeszutek Wilk
2016-03-17 16:58 ` Anthony PERARD
2016-03-17 17:37 ` Doug Goldstein
2016-03-17 18:33 ` Anthony PERARD
2016-03-18 21:11 ` Jim Fehlig
2016-03-19 0:43 ` Doug Goldstein
2016-04-18 14:31 ` Doug Goldstein
2016-04-19 13:11 ` Stefano Stabellini
2016-03-14 17:55 ` [PATCH v4 05/14] libxl: Load guest BIOS from file Anthony PERARD
2016-03-16 0:53 ` Konrad Rzeszutek Wilk
2016-03-16 9:27 ` Dario Faggioli
2016-03-17 17:24 ` Anthony PERARD
2016-03-14 17:55 ` [PATCH v4 06/14] xen: Move the hvm_start_info C representation from libxc to public/xen.h Anthony PERARD
2016-03-15 8:09 ` Jan Beulich
2016-03-16 0:59 ` Konrad Rzeszutek Wilk
2016-03-16 1:00 ` Konrad Rzeszutek Wilk
2016-03-16 8:32 ` Jan Beulich
2016-03-21 17:04 ` Roger Pau Monné
2016-03-21 17:21 ` Jan Beulich
2016-03-14 17:55 ` [PATCH v4 07/14] hvmloader: Grab the hvm_start_info pointer Anthony PERARD
2016-03-16 1:07 ` Konrad Rzeszutek Wilk
2016-04-05 12:43 ` Jan Beulich
2016-03-14 17:55 ` [PATCH v4 08/14] hvmloader: Locate the BIOS blob Anthony PERARD
2016-03-16 1:14 ` Konrad Rzeszutek Wilk
2016-03-17 17:46 ` Anthony PERARD
2016-03-17 17:57 ` Konrad Rzeszutek Wilk
2016-03-18 7:34 ` Jan Beulich
2016-04-05 12:59 ` Jan Beulich
2016-04-05 14:05 ` Roger Pau Monné
2016-04-05 14:23 ` Jan Beulich
2016-04-07 15:10 ` Anthony PERARD
2016-04-07 15:30 ` Jan Beulich
2016-03-14 17:55 ` [PATCH v4 09/14] hvmloader: Check modules whereabouts in perform_tests Anthony PERARD
2016-03-16 1:23 ` Konrad Rzeszutek Wilk
2016-03-17 18:08 ` Anthony PERARD
2016-04-05 13:07 ` Jan Beulich [this message]
2016-03-14 17:55 ` [PATCH v4 10/14] hvmloader: Load SeaBIOS from hvm_start_info modules Anthony PERARD
2016-03-16 1:27 ` Konrad Rzeszutek Wilk
2016-03-16 1:27 ` Konrad Rzeszutek Wilk
2016-04-05 13:11 ` Jan Beulich
2016-03-14 17:55 ` [PATCH v4 11/14] hvmloader: Load OVMF from modules Anthony PERARD
2016-03-16 1:36 ` Konrad Rzeszutek Wilk
2016-04-05 13:16 ` Jan Beulich
2016-03-14 17:55 ` [PATCH v4 12/14] hvmloader: Specific bios_load function required Anthony PERARD
2016-03-16 1:38 ` Konrad Rzeszutek Wilk
2016-03-17 18:25 ` Anthony PERARD
2016-03-14 17:55 ` [PATCH v4 13/14] hvmloader: Always build-in SeaBIOS and OVMF loader Anthony PERARD
2016-03-14 17:55 ` [PATCH v4 14/14] configure: do not depend on SEABIOS_PATH or OVMF_PATH Anthony PERARD
2016-03-16 1:40 ` Konrad Rzeszutek Wilk
2016-04-08 13:38 ` Wei Liu
2016-03-24 17:55 ` [PATCH v4 00/14] Load BIOS via toolstack instead of been embedded in hvmloader Jim Fehlig
2016-03-30 17:22 ` Jim Fehlig
2016-03-31 7:20 ` Jan Beulich
[not found] ` <56FCEBCD02000078000E19BF@suse.com>
2016-03-31 14:36 ` Jim Fehlig
2016-03-31 16:49 ` George Dunlap
2016-04-01 9:12 ` George Dunlap
2016-04-01 14:24 ` Konrad Rzeszutek Wilk
2016-04-01 20:06 ` Jim Fehlig
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