From: "Denis V. Lunev" <den@openvz.org>
Cc: kvm@vger.kernel.org, Gleb Natapov <gleb@kernel.org>,
qemu-devel@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>,
Andrey Smetanin <asmetanin@virtuozzo.com>,
"Denis V. Lunev" <den@openvz.org>
Subject: [Qemu-devel] [PATCH v2 0/11] HyperV equivalent of pvpanic driver
Date: Mon, 22 Jun 2015 19:04:57 +0300 [thread overview]
Message-ID: <1434989108-20924-1-git-send-email-den@openvz.org> (raw)
Windows 2012 guests can notify hypervisor about occurred guest crash
(Windows bugcheck(BSOD)) by writing specific Hyper-V msrs. This patch does
handling of this MSR's by KVM and sending notification to user space that
allows to gather Windows guest crash dump by QEMU/LIBVIRT.
The idea is to provide functionality equal to pvpanic device without
QEMU guest agent for Windows.
The idea is borrowed from Linux HyperV bus driver and validated against
Windows 2k12.
Changes from v1:
* hyperv code move to hyperv.c
* added read handlers of crash data msrs
* added per vm and per cpu hyperv context structures
* added saving crash msrs inside qemu cpu state
* added qemu fetch and update of crash msrs
* added qemu crash msrs store in cpu state and it's migration
Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Gleb Natapov <gleb@kernel.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
next reply other threads:[~2015-06-22 16:05 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-22 16:04 Denis V. Lunev [this message]
2015-06-22 16:04 ` [Qemu-devel] [PATCH 01/11] kvm/x86: move Hyper-V MSR's/hypercall code into hyperv.c file Denis V. Lunev
2015-06-25 10:25 ` Denis V. Lunev
2015-06-25 10:26 ` Paolo Bonzini
2015-06-22 16:04 ` [Qemu-devel] [PATCH 02/11] kvm: introduce vcpu_debug = kvm_debug + vcpu context Denis V. Lunev
2015-06-22 16:05 ` [Qemu-devel] [PATCH 03/11] kvm: add hyper-v crash msrs constants Denis V. Lunev
2015-06-22 16:05 ` [Qemu-devel] [PATCH 04/11] kvm/x86: added hyper-v crash msrs into kvm hyperv context Denis V. Lunev
2015-06-22 16:05 ` [Qemu-devel] [PATCH 05/11] kvm: added KVM_REQ_HV_CRASH value to notify qemu about Hyper-V crash Denis V. Lunev
2015-06-22 16:05 ` [Qemu-devel] [PATCH 06/11] kvm/x86: mark hyper-v crash msrs as partition wide Denis V. Lunev
2015-06-22 16:05 ` [Qemu-devel] [PATCH 07/11] kvm/x86: added hyper-v crash data and ctl msr's get/set'ers Denis V. Lunev
2015-06-22 23:52 ` Peter Hornyack
2015-06-23 9:47 ` Denis V. Lunev
2015-06-23 9:51 ` Paolo Bonzini
2015-06-23 10:08 ` Denis V. Lunev
2015-06-23 10:30 ` Paolo Bonzini
2015-06-22 16:05 ` [Qemu-devel] [PATCH 08/11] kvm/x86: add sending hyper-v crash notification to user space Denis V. Lunev
2015-06-22 16:05 ` [Qemu-devel] [PATCH 09/11] kvm/x86: distingiush hyper-v guest crash notification Denis V. Lunev
2015-06-22 16:09 ` Paolo Bonzini
2015-06-22 23:55 ` Peter Hornyack
2015-06-23 9:52 ` Paolo Bonzini
2015-06-22 16:05 ` [Qemu-devel] [PATCH 10/11] qemu/kvm: kvm hyper-v based guest crash event handling Denis V. Lunev
2015-06-22 16:15 ` Paolo Bonzini
2015-06-22 16:17 ` Paolo Bonzini
2015-06-22 16:05 ` [Qemu-devel] [PATCH 11/11] qemu/kvm: mark in cpu state that hyper-v crash occured Denis V. Lunev
2015-06-22 16:23 ` Andreas Färber
2015-06-22 16:27 ` Paolo Bonzini
2015-06-22 16:33 ` Andreas Färber
2015-06-22 16:35 ` Denis V. Lunev
2015-06-22 16:36 ` Paolo Bonzini
2015-06-22 17:46 ` Andreas Färber
2015-06-23 9:53 ` Paolo Bonzini
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