On Sun, May 22, 2016 at 01:21:53PM +0300, David Kiarie wrote: [...] > static void machine_set_suppress_vmdesc(Object *obj, bool value, Error > **errp) > { > MachineState *ms = MACHINE(obj); > @@ -473,10 +492,14 @@ static void machine_initfn(Object *obj) > "Firmware image", > NULL); > object_property_add_bool(obj, "iommu", > - machine_get_iommu, > - machine_set_iommu, NULL); > + machine_get_iommu, machine_set_iommu, NULL);
Shall we avoid this line-merge change? > object_property_set_description(obj, "iommu", > - "Set on/off to enable/disable Intel > IOMMU (VT-d)", > + "Set on to enable IOMMU emulation", > + NULL); > + object_property_add_str(obj, "x-iommu-type", > + NULL, machine_set_iommu_override, NULL); > + object_property_set_description(obj, "x-iommu-type", > + "Set on to override emulated IOMMU to > AMD IOMMU", Here if we can still configure x-iommu-type to "intel", shall we change it to something like: "Configure specific type of IOMMU (intel/amd)" I believe we just forgot to update this desc after we changed x-iommu-type from boolean to string. [...] > diff --git a/qemu-options.hx b/qemu-options.hx > index 6106520..81217d3 100644 > --- a/qemu-options.hx > +++ b/qemu-options.hx > @@ -38,7 +38,8 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \ > " kvm_shadow_mem=size of KVM shadow MMU\n" > " dump-guest-core=on|off include guest memory in a core > dump (default=on)\n" > " mem-merge=on|off controls memory merge support > (default: on)\n" > - " iommu=on|off controls emulated Intel IOMMU (VT-d) > support (default=off)\n" > + " iommu=on|off controls emulated IOMMU support(default: > off)\n" > + " x-iommu-type=amd|intel overrides emulated IOMMU to AMD > IOMMU (default: intel)\n" Similar to above, how about: "x-iommu-type=intel|amd configure emulated IOMMU type (default: intel)\n" > " igd-passthru=on|off controls IGD GFX passthrough > support (default=off)\n" > " aes-key-wrap=on|off controls support for AES key > wrapping (default=on)\n" > " dea-key-wrap=on|off controls support for DEA key > wrapping (default=on)\n" > @@ -74,7 +75,9 @@ Enables or disables memory merge support. This feature, > when supported by > the host, de-duplicates identical memory pages among VMs instances > (enabled by default). > @item iommu=on|off > -Enables or disables emulated Intel IOMMU (VT-d) support. The default is off. > +Enables and disables IOMMU emulation. The default is off. > +@item x-iommu-type=on|off > +Overrides emulated IOMMU from AMD IOMMU. By default Intel IOMMU is emulated. Need to update here with latest codes as well: """ @item x-iommu-type=intel|amd Configure IOMMU type (amd/intel). By default Intel IOMMU is emulated. """ > @item aes-key-wrap=on|off > Enables or disables AES key wrapping support on s390-ccw hosts. This feature > controls whether AES wrapping keys will be created to allow > diff --git a/util/qemu-config.c b/util/qemu-config.c > index fb97307..8886abf 100644 > --- a/util/qemu-config.c > +++ b/util/qemu-config.c > @@ -213,8 +213,12 @@ static QemuOptsList machine_opts = { > .help = "firmware image", > },{ > .name = "iommu", > - .type = QEMU_OPT_BOOL, > - .help = "Set on/off to enable/disable Intel IOMMU (VT-d)", > + .type = QEMU_OPT_BOOL, ^ Meaningless extra space here? Thanks, -- peterx