50a9ff6df4
The kernel is moved ahead to version 3.10.0-693.21.1.el7 To summarize: CVE-2017-5753 [bounds check bypass] aka 'Spectre Variant 1' This is fixed by load fences and is "baked in" and cannot be turned off. CVE-2017-5715 [branch target injection] aka 'Spectre Variant 2' This is fixed by a combination of retpolines and IBPB, or IBRS+IBPB if on skylake. This requires a microcode change in the processors. This feature, if on, has a significant performance impact. It is assumed on unless turned off via the "nospectre_v2" bootarg. CVE-2017-5754 [rogue data cache load] aka 'Meltdown' aka 'Variant 3' This is fixed by page table isolation using the Kaiser patches. This feature is assumed on unless turned off via the "nopti" bootarg. As of the commit date, we have changed the installer kickstarts to issue both "nopti nospectre_v2" bootargs to minimize realtime impacts by default. The customer will be able to optionally sacrifice performance for extra security at datafill time. Change-Id: Id7c99923f2ee2ee91f77c7bd9940e684eff8b476 Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
29 lines
1.1 KiB
Diff
29 lines
1.1 KiB
Diff
From 713d1abce3f43e4f2057ed5670343f1654c1f86f Mon Sep 17 00:00:00 2001
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Message-Id: <713d1abce3f43e4f2057ed5670343f1654c1f86f.1522097754.git.Jim.Somerville@windriver.com>
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In-Reply-To: <f4706beaf86081b0890ea616082913f8f51823ff.1522097754.git.Jim.Somerville@windriver.com>
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References: <f4706beaf86081b0890ea616082913f8f51823ff.1522097754.git.Jim.Somerville@windriver.com>
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From: Jim Somerville <Jim.Somerville@windriver.com>
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Date: Tue, 6 Mar 2018 12:54:40 -0500
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Subject: [PATCH 27/27] turn off write same in smartqpi driver
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Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
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---
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drivers/scsi/smartpqi/smartpqi_init.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
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index 638af91..a891516 100644
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--- a/drivers/scsi/smartpqi/smartpqi_init.c
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+++ b/drivers/scsi/smartpqi/smartpqi_init.c
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@@ -5155,6 +5155,7 @@ static struct scsi_host_template pqi_driver_template = {
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.slave_configure = pqi_slave_configure,
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.sdev_attrs = pqi_sdev_attrs,
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.shost_attrs = pqi_shost_attrs,
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+ .no_write_same = 1,
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};
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static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info)
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--
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1.8.3.1
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