mirror of https://github.com/proxmox/mirror_qemu
730319aef0
QEMU incorrectly validates FEAT_SVM feature flags against
GET_SUPPORTED_CPUID even if SVM features are being masked out by
cpu_x86_cpuid(). This can make QEMU print warnings on most AMD
CPU models, even when SVM nesting is disabled (which is the
default).
This bug was never detected before because of a Linux KVM bug:
until Linux v5.6, KVM was not filtering out SVM features in
GET_SUPPORTED_CPUID when nested was disabled. This KVM bug was
fixed in Linux v5.7-rc1, on Linux commit a50718cc3f43 ("KVM:
nSVM: Expose SVM features to L1 iff nested is enabled").
Fix the problem by adding a CPUID_EXT3_SVM dependency to all
FEAT_SVM feature flags in the feature_dependencies table.
Reported-by: Yanan Fu <yfu@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20200623230116.277409-1-ehabkost@redhat.com>
[Fix testcase. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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|---|---|---|
| .. | ||
| fuzz | ||
| libqos | ||
| Makefile.include | ||
| ac97-test.c | ||
| acpi-utils.c | ||
| acpi-utils.h | ||
| ahci-test.c | ||
| arm-cpu-features.c | ||
| bios-tables-test-allowed-diff.h | ||
| bios-tables-test.c | ||
| boot-order-test.c | ||
| boot-sector.c | ||
| boot-sector.h | ||
| boot-serial-test.c | ||
| cdrom-test.c | ||
| cpu-plug-test.c | ||
| dbus-vmstate-test.c | ||
| dbus-vmstate1.xml | ||
| device-introspect-test.c | ||
| device-plug-test.c | ||
| display-vga-test.c | ||
| drive_del-test.c | ||
| ds1338-test.c | ||
| e1000-test.c | ||
| e1000e-test.c | ||
| eepro100-test.c | ||
| endianness-test.c | ||
| es1370-test.c | ||
| fdc-test.c | ||
| fw_cfg-test.c | ||
| hd-geo-test.c | ||
| hexloader-test.c | ||
| i440fx-test.c | ||
| i82801b11-test.c | ||
| ide-test.c | ||
| intel-hda-test.c | ||
| ioh3420-test.c | ||
| ipmi-bt-test.c | ||
| ipmi-kcs-test.c | ||
| ipoctal232-test.c | ||
| ivshmem-test.c | ||
| libqtest-single.h | ||
| libqtest.c | ||
| libqtest.h | ||
| m25p80-test.c | ||
| m48t59-test.c | ||
| machine-none-test.c | ||
| megasas-test.c | ||
| microbit-test.c | ||
| migration-helpers.c | ||
| migration-helpers.h | ||
| migration-test.c | ||
| modules-test.c | ||
| ne2000-test.c | ||
| numa-test.c | ||
| nvme-test.c | ||
| pca9552-test.c | ||
| pci-test.c | ||
| pcnet-test.c | ||
| pflash-cfi02-test.c | ||
| pnv-xscom-test.c | ||
| prom-env-test.c | ||
| pvpanic-test.c | ||
| pxe-test.c | ||
| q35-test.c | ||
| qmp-cmd-test.c | ||
| qmp-test.c | ||
| qom-test.c | ||
| qos-test.c | ||
| rtas-test.c | ||
| rtc-test.c | ||
| rtl8139-test.c | ||
| sdhci-test.c | ||
| spapr-phb-test.c | ||
| tco-test.c | ||
| test-arm-mptimer.c | ||
| test-filter-mirror.c | ||
| test-filter-redirector.c | ||
| test-hmp.c | ||
| test-netfilter.c | ||
| test-x86-cpuid-compat.c | ||
| tmp105-test.c | ||
| tpm-crb-swtpm-test.c | ||
| tpm-crb-test.c | ||
| tpm-emu.c | ||
| tpm-emu.h | ||
| tpm-tests.c | ||
| tpm-tests.h | ||
| tpm-tis-device-swtpm-test.c | ||
| tpm-tis-device-test.c | ||
| tpm-tis-swtpm-test.c | ||
| tpm-tis-test.c | ||
| tpm-tis-util.c | ||
| tpm-tis-util.h | ||
| tpm-util.c | ||
| tpm-util.h | ||
| tulip-test.c | ||
| usb-hcd-ehci-test.c | ||
| usb-hcd-ohci-test.c | ||
| usb-hcd-uhci-test.c | ||
| usb-hcd-xhci-test.c | ||
| vhost-user-test.c | ||
| virtio-9p-test.c | ||
| virtio-blk-test.c | ||
| virtio-ccw-test.c | ||
| virtio-net-test.c | ||
| virtio-rng-test.c | ||
| virtio-scsi-test.c | ||
| virtio-serial-test.c | ||
| virtio-test.c | ||
| vmgenid-test.c | ||
| vmxnet3-test.c | ||
| wdt_ib700-test.c | ||