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From: "Bryan O'Donoghue" <pure.logic@nexus-software.ie>
To: "Ong, Boon Leong" <boon.leong.ong@intel.com>
Cc: "tglx@linutronix.de" <tglx@linutronix.de>,
	"mingo@redhat.com" <mingo@redhat.com>,
	"hpa@zytor.com" <hpa@zytor.com>,
	"x86@kernel.org" <x86@kernel.org>,
	"dvhart@infradead.org" <dvhart@infradead.org>,
	"platform-driver-x86@vger.kernel.org" 
	<platform-driver-x86@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"andy.shevchenko@gmail.com" <andy.shevchenko@gmail.com>
Subject: Re: [PATCH 1/2] x86: Add Isolated Memory Regions for Quark X1000
Date: Thu, 08 Jan 2015 15:11:35 +0000	[thread overview]
Message-ID: <54AE9E27.2050307@nexus-software.ie> (raw)
In-Reply-To: <AF233D1473C1364ABD51D28909A1B1B7326E297E@PGSMSX105.gar.corp.intel.com>


> Suggest to split the imr_del() into 2 functions:-
> (1) by address + size
> (2) by IMR index
> At current implementation, it does not support (2) only because it fails at
> imr_check_range().

Hi Boon Leong.

I'll have a think about that :)

Just on imr_del() though, it does support removal by way of index.

+static void __init intel_galileo_imr_init(void)
+{
+	unsigned long base  = virt_to_phys(&_text);
+	unsigned long size = virt_to_phys(&_sinittext) - base - IMR_ALIGN;
+	int i, ret;
+
+	/* Tear down all existing unlocked IMRs */
+	for (i = 0; i <= QUARK_X1000_IMR_NUM; i++)
+		imr_del(i, 0, 0);

That's what the platform code has to do for every unlocked IMR, to make 
sure there are no stale IMRs left that could conflict with the EFI 
memory map !

--
BOD





  reply	other threads:[~2015-01-08 15:11 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-29 17:23 [PATCH 0/2] x86: Add IMR support to Quark/Galileo Bryan O'Donoghue
2014-12-29 17:23 ` [PATCH 1/2] x86: Add Isolated Memory Regions for Quark X1000 Bryan O'Donoghue
2014-12-31 15:05   ` Andy Shevchenko
2015-01-01 20:11     ` Bryan O'Donoghue
2015-01-06  7:36   ` Darren Hart
2015-01-06 13:43     ` Bryan O'Donoghue
2015-01-06 16:54       ` Darren Hart
2015-01-07 23:45       ` Ong, Boon Leong
2015-01-08 12:10         ` Bryan O'Donoghue
2015-01-08 14:52           ` Ong, Boon Leong
2015-01-08  0:04   ` Ong, Boon Leong
2015-01-08 13:08     ` Bryan O'Donoghue
2015-01-08 14:45       ` Ong, Boon Leong
2015-01-08 15:11         ` Bryan O'Donoghue [this message]
2015-01-09  3:44           ` Darren Hart
2014-12-29 17:23 ` [PATCH 2/2] platform/x86: Add Intel Galileo platform specific setup Bryan O'Donoghue
2014-12-31 15:25   ` Andy Shevchenko
2015-01-09  1:00   ` Ong, Boon Leong
2015-01-09  2:11     ` Bryan O'Donoghue
2015-01-09  4:46   ` Darren Hart
2015-01-09 11:17     ` Bryan O'Donoghue
2015-01-09 11:29       ` Bryan O'Donoghue
2015-01-09 14:11         ` Ong, Boon Leong
2015-01-10  6:54       ` Darren Hart
2015-01-11  1:53         ` Bryan O'Donoghue
2014-12-31 10:12 ` [PATCH 0/2] x86: Add IMR support to Quark/Galileo Andy Shevchenko
2014-12-31 11:59   ` Bryan O'Donoghue
2015-01-02  2:02   ` Darren Hart
2015-01-02  4:24 ` Darren Hart
2015-01-06  6:00 ` Darren Hart
2015-01-06 13:56   ` Bryan O'Donoghue
2015-01-06 16:48     ` Darren Hart
2015-01-06 17:23       ` Bryan O'Donoghue
  -- strict thread matches above, loose matches on Subject: below --
2015-01-28 18:36 [PATCH v6 " Bryan O'Donoghue
2015-01-28 18:36 ` [PATCH 1/2] x86: Add Isolated Memory Regions for Quark X1000 Bryan O'Donoghue
2015-01-29  5:38   ` Darren Hart
2015-01-29  7:44   ` Ingo Molnar
2015-01-29 10:08     ` Andy Shevchenko
2015-01-29 10:12       ` Bryan O'Donoghue
2015-01-29 13:47         ` Ong, Boon Leong
2015-01-29 15:22           ` Bryan O'Donoghue
2015-01-29 15:32             ` Ong, Boon Leong
2015-01-29 15:40               ` Bryan O'Donoghue
2015-01-29 16:12                 ` Bryan O'Donoghue
2015-01-29 16:26                   ` Ong, Boon Leong
2015-01-29 15:15         ` Ong, Boon Leong
2015-01-29 13:27     ` Bryan O'Donoghue
2015-01-29  9:59   ` Ong, Boon Leong

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