qemu-kvm/kvm-target-arm-monitor-query-cpu-model-expansion-crashed.patch
Danilo C. L. de Paula fda7fbcd8d * Fri Feb 14 2020 Danilo Cesar Lemes de Paula <ddepaula@redhat.com> - 4.2.0-10.el8
- kvm-i386-Resolve-CPU-models-to-v1-by-default.patch [bz#1779078 bz#1787291 bz#1779078 bz#1779078]
- kvm-iotests-Support-job-complete-in-run_job.patch [bz#1781637]
- kvm-iotests-Create-VM.blockdev_create.patch [bz#1781637]
- kvm-block-Activate-recursively-even-for-already-active-n.patch [bz#1781637]
- kvm-hmp-Allow-using-qdev-ID-for-qemu-io-command.patch [bz#1781637]
- kvm-iotests-Test-external-snapshot-with-VM-state.patch [bz#1781637]
- kvm-iotests.py-Let-wait_migration-wait-even-more.patch [bz#1781637]
- kvm-blockdev-fix-coding-style-issues-in-drive_backup_pre.patch [bz#1745606 bz#1746217 bz#1773517 bz#1779036 bz#1782111 bz#1782175 bz#1783965]
- kvm-blockdev-unify-qmp_drive_backup-and-drive-backup-tra.patch [bz#1745606 bz#1746217 bz#1773517 bz#1779036 bz#1782111 bz#1782175 bz#1783965]
- kvm-blockdev-unify-qmp_blockdev_backup-and-blockdev-back.patch [bz#1745606 bz#1746217 bz#1773517 bz#1779036 bz#1782111 bz#1782175 bz#1783965]
- kvm-blockdev-honor-bdrv_try_set_aio_context-context-requ.patch [bz#1745606 bz#1746217 bz#1773517 bz#1779036 bz#1782111 bz#1782175 bz#1783965]
- kvm-backup-top-Begin-drain-earlier.patch [bz#1745606 bz#1746217 bz#1773517 bz#1779036 bz#1782111 bz#1782175 bz#1783965]
- kvm-block-backup-top-Don-t-acquire-context-while-droppin.patch [bz#1745606 bz#1746217 bz#1773517 bz#1779036 bz#1782111 bz#1782175 bz#1783965]
- kvm-blockdev-Acquire-AioContext-on-dirty-bitmap-function.patch [bz#1745606 bz#1746217 bz#1773517 bz#1779036 bz#1782111 bz#1782175 bz#1783965]
- kvm-blockdev-Return-bs-to-the-proper-context-on-snapshot.patch [bz#1745606 bz#1746217 bz#1773517 bz#1779036 bz#1782111 bz#1782175 bz#1783965]
- kvm-iotests-Test-handling-of-AioContexts-with-some-block.patch [bz#1745606 bz#1746217 bz#1773517 bz#1779036 bz#1782111 bz#1782175 bz#1783965]
- kvm-target-arm-monitor-query-cpu-model-expansion-crashed.patch [bz#1801320]
- kvm-docs-arm-cpu-features-Make-kvm-no-adjvtime-comment-c.patch [bz#1801320]
- Resolves: bz#1745606
  (Qemu hang when do incremental live backup in transaction mode without bitmap)
- Resolves: bz#1746217
  (Src qemu hang when do storage vm migration during guest installation)
- Resolves: bz#1773517
  (Src qemu hang when do storage vm migration with dataplane enable)
- Resolves: bz#1779036
  (Qemu coredump when do snapshot in transaction mode with one snapshot path not exist)
- Resolves: bz#1779078
  (RHVH 4.4: Failed to run VM on 4.3/4.4 engine (Exit message: the CPU is incompatible with host CPU: Host CPU does not provide required features: hle, rtm))
- Resolves: bz#1781637
  (qemu crashed when do mem and disk snapshot)
- Resolves: bz#1782111
  (Qemu hang when do full backup on multi-disks with one job's 'job-id' missed in transaction mode(data plane enable))
- Resolves: bz#1782175
  (Qemu core dump when add persistent bitmap(data plane enable))
- Resolves: bz#1783965
  (Qemu core dump when do backup with sync: bitmap and no bitmap provided)
- Resolves: bz#1787291
  (RHVH 4.4: Failed to run VM on 4.3/4.4 engine (Exit message: the CPU is incompatible with host CPU: Host CPU does not provide required features: hle, rtm) [rhel-8.1.0.z])
- Resolves: bz#1801320
  (aarch64: backport query-cpu-model-expansion and adjvtime document fixes)
2020-02-14 03:03:11 +00:00

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Diff

From c82cf5c08617c947b34eb490d1714729103e3379 Mon Sep 17 00:00:00 2001
From: Andrew Jones <drjones@redhat.com>
Date: Mon, 10 Feb 2020 17:33:57 +0000
Subject: [PATCH 17/18] target/arm/monitor: query-cpu-model-expansion crashed
qemu when using machine type none
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Andrew Jones <drjones@redhat.com>
Message-id: <20200210173358.16896-2-drjones@redhat.com>
Patchwork-id: 93773
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 1/2] target/arm/monitor: query-cpu-model-expansion crashed qemu when using machine type none
Bugzilla: 1801320
RH-Acked-by: Auger Eric <eric.auger@redhat.com>
RH-Acked-by: Gavin Shan <gshan@redhat.com>
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1801320
Author: Liang Yan <lyan@suse.com>
Date: Fri, 07 Feb 2020 14:04:21 +0000
target/arm/monitor: query-cpu-model-expansion crashed qemu when using machine type none
Commit e19afd566781 mentioned that target-arm only supports queryable
cpu models 'max', 'host', and the current type when KVM is in use.
The logic works well until using machine type none.
For machine type none, cpu_type will be null if cpu option is not
set by command line, strlen(cpu_type) will terminate process.
So We add a check above it.
This won't affect i386 and s390x since they do not use current_cpu.
Signed-off-by: Liang Yan <lyan@suse.com>
Message-id: 20200203134251.12986-1-lyan@suse.com
Reviewed-by: Andrew Jones <drjones@redhat.com>
Tested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit 0999a4ba8718aa96105b978d3567fc7e90244c7e)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
target/arm/monitor.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/target/arm/monitor.c b/target/arm/monitor.c
index 9725dff..c2dc790 100644
--- a/target/arm/monitor.c
+++ b/target/arm/monitor.c
@@ -137,17 +137,20 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
}
if (kvm_enabled()) {
- const char *cpu_type = current_machine->cpu_type;
- int len = strlen(cpu_type) - strlen(ARM_CPU_TYPE_SUFFIX);
bool supported = false;
if (!strcmp(model->name, "host") || !strcmp(model->name, "max")) {
/* These are kvmarm's recommended cpu types */
supported = true;
- } else if (strlen(model->name) == len &&
- !strncmp(model->name, cpu_type, len)) {
- /* KVM is enabled and we're using this type, so it works. */
- supported = true;
+ } else if (current_machine->cpu_type) {
+ const char *cpu_type = current_machine->cpu_type;
+ int len = strlen(cpu_type) - strlen(ARM_CPU_TYPE_SUFFIX);
+
+ if (strlen(model->name) == len &&
+ !strncmp(model->name, cpu_type, len)) {
+ /* KVM is enabled and we're using this type, so it works. */
+ supported = true;
+ }
}
if (!supported) {
error_setg(errp, "We cannot guarantee the CPU type '%s' works "
--
1.8.3.1