diff options
Diffstat (limited to 'docs/system/arm')
| -rw-r--r-- | docs/system/arm/cpu-features.rst | 7 | ||||
| -rw-r--r-- | docs/system/arm/virt.rst | 4 |
2 files changed, 9 insertions, 2 deletions
diff --git a/docs/system/arm/cpu-features.rst b/docs/system/arm/cpu-features.rst index a5fb929243..37d5dfd15b 100644 --- a/docs/system/arm/cpu-features.rst +++ b/docs/system/arm/cpu-features.rst @@ -219,8 +219,11 @@ Below is the list of TCG VCPU features and their descriptions. ``pauth-qarma3`` When ``pauth`` is enabled, select the architected QARMA3 algorithm. -Without either ``pauth-impdef`` or ``pauth-qarma3`` enabled, -the architected QARMA5 algorithm is used. The architected QARMA5 +``pauth-qarma5`` + When ``pauth`` is enabled, select the architected QARMA5 algorithm. + +Without ``pauth-impdef``, ``pauth-qarma3`` or ``pauth-qarma5`` enabled, +the QEMU impdef algorithm is used. The architected QARMA5 and QARMA3 algorithms have good cryptographic properties, but can be quite slow to emulate. The impdef algorithm used by QEMU is non-cryptographic but significantly faster. diff --git a/docs/system/arm/virt.rst b/docs/system/arm/virt.rst index f87adeb444..766a7455f0 100644 --- a/docs/system/arm/virt.rst +++ b/docs/system/arm/virt.rst @@ -19,6 +19,10 @@ of the 5.0 release and ``virt-5.0`` of the 5.1 release. Migration is not guaranteed to work between different QEMU releases for the non-versioned ``virt`` machine type. +VM migration is not guaranteed when using ``-cpu max``, as features +supported may change between QEMU versions. To ensure your VM can be +migrated, it is recommended to use another cpu model instead. + Supported devices """"""""""""""""" |