| Message ID | 20200925211021.4158567-1-ehabkost@redhat.com |
|---|---|
| State | New |
| Headers | show |
| Series | i386: Document when features can be added to kvm_default_props | expand |
On 25/09/20 23:10, Eduardo Habkost wrote: > It's very easy to mistakenly extend kvm_default_props to include > features that require a kernel version that's too recent. Add a > comment warning about that, pointing to the documentation file > where the minimum kernel version for KVM is documented. > > Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> > --- > target/i386/cpu.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/target/i386/cpu.c b/target/i386/cpu.c > index 3ffd877dd51..c8558bb49ac 100644 > --- a/target/i386/cpu.c > +++ b/target/i386/cpu.c > @@ -4098,8 +4098,14 @@ static X86CPUDefinition builtin_x86_defs[] = { > }, > }; > > -/* KVM-specific features that are automatically added/removed > +/* > + * KVM-specific features that are automatically added/removed > * from all CPU models when KVM is enabled. > + * > + * NOTE: features can be enabled by default only if they were > + * already available in the oldest kernel version supported > + * by the KVM accelerator (see "OS requirements" section at > + * docs/system/target-i386.rst) > */ > static PropValue kvm_default_props[] = { > { "kvmclock", "on" }, > Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Patchew URL: https://patchew.org/QEMU/20200925211021.4158567-1-ehabkost@redhat.com/
Hi,
This series failed the docker-quick@centos7 build test. Please find the testing commands and
their output below. If you have Docker installed, you can probably reproduce it
locally.
=== TEST SCRIPT BEGIN ===
#!/bin/bash
make docker-image-centos7 V=1 NETWORK=1
time make docker-test-quick@centos7 SHOW_ENV=1 J=14 NETWORK=1
=== TEST SCRIPT END ===
C linker for the host machine: cc ld.bfd 2.27-43
Host machine cpu family: x86_64
Host machine cpu: x86_64
../src/meson.build:10: WARNING: Module unstable-keyval has no backwards or forwards compatibility and might not exist in future releases.
Program sh found: YES
Program python3 found: YES (/usr/bin/python3)
Configuring ninjatool using configuration
---
TEST iotest-qcow2: 024
socket_accept failed: Resource temporarily unavailable
**
ERROR:../src/tests/qtest/libqtest.c:301:qtest_init_without_qmp_handshake: assertion failed: (s->fd >= 0 && s->qmp_fd >= 0)
../src/tests/qtest/libqtest.c:166: kill_qemu() tried to terminate QEMU process but encountered exit status 1 (expected 0)
ERROR qtest-aarch64: bios-tables-test - Bail out! ERROR:../src/tests/qtest/libqtest.c:301:qtest_init_without_qmp_handshake: assertion failed: (s->fd >= 0 && s->qmp_fd >= 0)
make: *** [run-test-159] Error 1
make: *** Waiting for unfinished jobs....
TEST iotest-qcow2: 025
TEST iotest-qcow2: 027
---
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['sudo', '-n', 'docker', 'run', '--rm', '--label', 'com.qemu.instance.uuid=1bf1802df7d443929b92e9534e4a83ff', '-u', '1003', '--security-opt', 'seccomp=unconfined', '-e', 'TARGET_LIST=', '-e', 'EXTRA_CONFIGURE_OPTS=', '-e', 'V=', '-e', 'J=14', '-e', 'DEBUG=', '-e', 'SHOW_ENV=1', '-e', 'CCACHE_DIR=/var/tmp/ccache', '-v', '/home/patchew2/.cache/qemu-docker-ccache:/var/tmp/ccache:z', '-v', '/var/tmp/patchew-tester-tmp-q5cgi4gp/src/docker-src.2020-09-25-20.07.00.10236:/var/tmp/qemu:z,ro', 'qemu/centos7', '/var/tmp/qemu/run', 'test-quick']' returned non-zero exit status 2.
filter=--filter=label=com.qemu.instance.uuid=1bf1802df7d443929b92e9534e4a83ff
make[1]: *** [docker-run] Error 1
make[1]: Leaving directory `/var/tmp/patchew-tester-tmp-q5cgi4gp/src'
make: *** [docker-run-test-quick@centos7] Error 2
real 18m15.588s
user 0m16.838s
The full log is available at
http://patchew.org/logs/20200925211021.4158567-1-ehabkost@redhat.com/testing.docker-quick@centos7/?type=message.
---
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On Fri, Sep 25, 2020 at 05:10:21PM -0400, Eduardo Habkost wrote: > It's very easy to mistakenly extend kvm_default_props to include > features that require a kernel version that's too recent. Add a > comment warning about that, pointing to the documentation file > where the minimum kernel version for KVM is documented. > > Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> I forgot about this. I'm queueing it now (7 months later).
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 3ffd877dd51..c8558bb49ac 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -4098,8 +4098,14 @@ static X86CPUDefinition builtin_x86_defs[] = { }, }; -/* KVM-specific features that are automatically added/removed +/* + * KVM-specific features that are automatically added/removed * from all CPU models when KVM is enabled. + * + * NOTE: features can be enabled by default only if they were + * already available in the oldest kernel version supported + * by the KVM accelerator (see "OS requirements" section at + * docs/system/target-i386.rst) */ static PropValue kvm_default_props[] = { { "kvmclock", "on" },
It's very easy to mistakenly extend kvm_default_props to include features that require a kernel version that's too recent. Add a comment warning about that, pointing to the documentation file where the minimum kernel version for KVM is documented. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> --- target/i386/cpu.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)