|
 |
902636 |
From c82cf5c08617c947b34eb490d1714729103e3379 Mon Sep 17 00:00:00 2001
|
|
|
902636 |
From: Andrew Jones <drjones@redhat.com>
|
|
|
902636 |
Date: Mon, 10 Feb 2020 17:33:57 +0000
|
|
|
902636 |
Subject: [PATCH 17/18] target/arm/monitor: query-cpu-model-expansion crashed
|
|
|
902636 |
qemu when using machine type none
|
|
|
902636 |
MIME-Version: 1.0
|
|
|
902636 |
Content-Type: text/plain; charset=UTF-8
|
|
|
902636 |
Content-Transfer-Encoding: 8bit
|
|
|
902636 |
|
|
|
902636 |
RH-Author: Andrew Jones <drjones@redhat.com>
|
|
|
902636 |
Message-id: <20200210173358.16896-2-drjones@redhat.com>
|
|
|
902636 |
Patchwork-id: 93773
|
|
|
902636 |
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
|
|
|
902636 |
Bugzilla: 1801320
|
|
|
902636 |
RH-Acked-by: Auger Eric <eric.auger@redhat.com>
|
|
|
902636 |
RH-Acked-by: Gavin Shan <gshan@redhat.com>
|
|
|
902636 |
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
|
|
|
902636 |
|
|
|
902636 |
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1801320
|
|
|
902636 |
|
|
|
902636 |
Author: Liang Yan <lyan@suse.com>
|
|
|
902636 |
Date: Fri, 07 Feb 2020 14:04:21 +0000
|
|
|
902636 |
|
|
|
902636 |
target/arm/monitor: query-cpu-model-expansion crashed qemu when using machine type none
|
|
|
902636 |
|
|
|
902636 |
Commit e19afd566781 mentioned that target-arm only supports queryable
|
|
|
902636 |
cpu models 'max', 'host', and the current type when KVM is in use.
|
|
|
902636 |
The logic works well until using machine type none.
|
|
|
902636 |
|
|
|
902636 |
For machine type none, cpu_type will be null if cpu option is not
|
|
|
902636 |
set by command line, strlen(cpu_type) will terminate process.
|
|
|
902636 |
So We add a check above it.
|
|
|
902636 |
|
|
|
902636 |
This won't affect i386 and s390x since they do not use current_cpu.
|
|
|
902636 |
|
|
|
902636 |
Signed-off-by: Liang Yan <lyan@suse.com>
|
|
|
902636 |
Message-id: 20200203134251.12986-1-lyan@suse.com
|
|
|
902636 |
Reviewed-by: Andrew Jones <drjones@redhat.com>
|
|
|
902636 |
Tested-by: Andrew Jones <drjones@redhat.com>
|
|
|
902636 |
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
|
|
|
902636 |
|
|
|
902636 |
(cherry picked from commit 0999a4ba8718aa96105b978d3567fc7e90244c7e)
|
|
|
902636 |
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
|
|
|
902636 |
---
|
|
|
902636 |
target/arm/monitor.c | 15 +++++++++------
|
|
|
902636 |
1 file changed, 9 insertions(+), 6 deletions(-)
|
|
|
902636 |
|
|
|
902636 |
diff --git a/target/arm/monitor.c b/target/arm/monitor.c
|
|
|
902636 |
index 9725dff..c2dc790 100644
|
|
|
902636 |
--- a/target/arm/monitor.c
|
|
|
902636 |
+++ b/target/arm/monitor.c
|
|
|
902636 |
@@ -137,17 +137,20 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
|
|
|
902636 |
}
|
|
|
902636 |
|
|
|
902636 |
if (kvm_enabled()) {
|
|
|
902636 |
- const char *cpu_type = current_machine->cpu_type;
|
|
|
902636 |
- int len = strlen(cpu_type) - strlen(ARM_CPU_TYPE_SUFFIX);
|
|
|
902636 |
bool supported = false;
|
|
|
902636 |
|
|
|
902636 |
if (!strcmp(model->name, "host") || !strcmp(model->name, "max")) {
|
|
|
902636 |
/* These are kvmarm's recommended cpu types */
|
|
|
902636 |
supported = true;
|
|
|
902636 |
- } else if (strlen(model->name) == len &&
|
|
|
902636 |
- !strncmp(model->name, cpu_type, len)) {
|
|
|
902636 |
- /* KVM is enabled and we're using this type, so it works. */
|
|
|
902636 |
- supported = true;
|
|
|
902636 |
+ } else if (current_machine->cpu_type) {
|
|
|
902636 |
+ const char *cpu_type = current_machine->cpu_type;
|
|
|
902636 |
+ int len = strlen(cpu_type) - strlen(ARM_CPU_TYPE_SUFFIX);
|
|
|
902636 |
+
|
|
|
902636 |
+ if (strlen(model->name) == len &&
|
|
|
902636 |
+ !strncmp(model->name, cpu_type, len)) {
|
|
|
902636 |
+ /* KVM is enabled and we're using this type, so it works. */
|
|
|
902636 |
+ supported = true;
|
|
|
902636 |
+ }
|
|
|
902636 |
}
|
|
|
902636 |
if (!supported) {
|
|
|
902636 |
error_setg(errp, "We cannot guarantee the CPU type '%s' works "
|
|
|
902636 |
--
|
|
|
902636 |
1.8.3.1
|
|
|
902636 |
|