From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: devel@linuxdriverproject.org
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
"K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>
Subject: [PATCH 0/2] Drivers: hv: fix kexec/kdump after the recent changes
Date: Wed, 25 Jan 2017 14:17:53 +0100 [thread overview]
Message-ID: <20170125131755.21652-1-vkuznets@redhat.com> (raw)
'Restructure architecture specific code' series (now merged in char-misc)
introduced a regression wrt kexec/kdump. Hypercall and TSC pages setup was
moved out to the architecture specific code and the cleanup was dropped. We,
however, still need this cleanup: in kexec case the new kernel may try
using these pages as normal memory and will certainly crash. Restore the
minimal cleanup moving it to the architecture specific code.
Commit ids I mention in 'Fixes:' tags are from char-misc-next.
Vitaly Kuznetsov (2):
Drivers: hv: restore hypervcall page cleanup before kexec
Drivers: hv: restore TSC page cleanup before kexec
arch/x86/hyperv/hv_init.c | 20 ++++++++++++++++++++
arch/x86/include/asm/mshyperv.h | 1 +
drivers/hv/hv.c | 10 ----------
drivers/hv/hyperv_vmbus.h | 2 --
drivers/hv/vmbus_drv.c | 10 +++-------
5 files changed, 24 insertions(+), 19 deletions(-)
--
2.9.3
next reply other threads:[~2017-01-25 13:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-25 13:17 Vitaly Kuznetsov [this message]
2017-01-25 13:17 ` [PATCH 1/2] Drivers: hv: restore hypervcall page cleanup before kexec Vitaly Kuznetsov
2017-01-25 13:17 ` [PATCH 2/2] Drivers: hv: restore TSC " Vitaly Kuznetsov
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