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From: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
To: Tal Shnaiderman <talshn@mellanox.com>
Cc: Narcisa Ana Maria Vasile <navasile@linux.microsoft.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	Thomas Monjalon <thomas@monjalon.net>,
	"pallavi.kadam@intel.com" <pallavi.kadam@intel.com>,
	"david.marchand@redhat.com" <david.marchand@redhat.com>,
	"grive@u256.net" <grive@u256.net>,
	"ranjit.menon@intel.com" <ranjit.menon@intel.com>,
	"harini.ramakrishnan@microsoft.com"
	<harini.ramakrishnan@microsoft.com>,
	"ocardona@microsoft.com" <ocardona@microsoft.com>,
	"anatoly.burakov@intel.com" <anatoly.burakov@intel.com>
Subject: Re: [dpdk-dev] [PATCH 1/2] eal/windows: Add needed calls to detect vdev PMD
Date: Tue, 7 Jul 2020 11:39:22 +0300
Message-ID: <20200707113922.2e870d2d@sovereign> (raw)
In-Reply-To: <DB7PR05MB53240C098C917BF7870D72F0A9660@DB7PR05MB5324.eurprd05.prod.outlook.com>

On Tue, 7 Jul 2020 08:04:00 +0000, Tal Shnaiderman wrote:
> Dmitry, It looks like we got to this stage since hugepage_claim_privilege() cannot actually detect that "Lock pages" isn't granted to the current user, as a result we fail on the first usage of a memory management call [in this case rte_calloc()] without indication to the reason.
> 
> Is it possible to add an actual check that the current user is in the list of grantees?

Thanks, I'll look into it.
 
> Alternatively, It would be great to have this privilege added programmatically, I tried the MSDN example in [2] but it didn't work for me while testing, maybe Microsoft team can check if there is a way to do it?

I don't think it's a good idea from security perspective if an application
grants its user new privileges implicitly. Process with SeLockMemory
privilege can affect overall system performance and stability.

-- 
Dmitry Kozlyuk

  reply	other threads:[~2020-07-07  8:39 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-24 14:56 [dpdk-dev] [PATCH 0/2] Windows bus/vdev support talshn
2020-06-24 14:56 ` [dpdk-dev] [PATCH 1/2] eal/windows: Add needed calls to detect vdev PMD talshn
2020-07-06 23:38   ` Thomas Monjalon
2020-07-07  0:43   ` Narcisa Ana Maria Vasile
2020-07-07  8:04     ` Tal Shnaiderman
2020-07-07  8:39       ` Dmitry Kozlyuk [this message]
2020-07-07 18:04         ` Ranjit Menon
2020-07-07  8:48   ` [dpdk-dev] [PATCH v2 0/2] Windows bus/vdev support talshn
2020-07-07  8:48     ` [dpdk-dev] [PATCH v2 1/2] eal/windows: add needed calls to detect vdev PMD talshn
2020-07-16 20:54       ` Narcisa Ana Maria Vasile
2020-07-07  8:48     ` [dpdk-dev] [PATCH v2 2/2] bus/vdev: build on Windows talshn
2020-07-16 20:53       ` Narcisa Ana Maria Vasile
2020-07-20 19:18     ` [dpdk-dev] [PATCH v2 0/2] Windows bus/vdev support Kadam, Pallavi
2020-09-09 12:41       ` Thomas Monjalon
2020-06-24 14:56 ` [dpdk-dev] [PATCH 2/2] bus/vdev: Windows support talshn

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