Re: [PATCH 05/14] hw/i386/vmport: Report VMX type in CMD_GETVERSION

["Michael S. Tsirkin" <mst@redhat.com>]

On Tue, Mar 10, 2020 at 01:18:44PM +0200, Liran Alon wrote:
> 
> On 10/03/2020 11:20, Michael S. Tsirkin wrote:
> > On Tue, Mar 10, 2020 at 01:54:02AM +0200, Liran Alon wrote:
> > > As can be seen from VmCheck_GetVersion() in open-vm-tools code,
> > > CMD_GETVERSION should return VMX type in ECX register.
> > > 
> > > Default is to fake host as VMware ESX server. But user can control
> > > this value by "-global vmport.vmx-type=X".
> > > 
> > > Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
> > > Signed-off-by: Liran Alon <liran.alon@oracle.com>
> > > ---
> > >   hw/i386/vmport.c | 13 +++++++++++++
> > >   1 file changed, 13 insertions(+)
> > > 
> > > diff --git a/hw/i386/vmport.c b/hw/i386/vmport.c
> > > index a2c8ff4b59cf..c03f57f2f636 100644
> > > --- a/hw/i386/vmport.c
> > > +++ b/hw/i386/vmport.c
> > > @@ -36,6 +36,15 @@
> > >   #define VMPORT_ENTRIES 0x2c
> > >   #define VMPORT_MAGIC   0x564D5868
> > > +typedef enum {
> > > +   VMX_TYPE_UNSET = 0,
> > > +   VMX_TYPE_EXPRESS,    /* Deprecated type used for VMware Express */
> > > +   VMX_TYPE_SCALABLE_SERVER,    /* VMware ESX server */
> > > +   VMX_TYPE_WGS,        /* Deprecated type used for VMware Server */
> > > +   VMX_TYPE_WORKSTATION,
> > > +   VMX_TYPE_WORKSTATION_ENTERPRISE /* Deprecated type used for ACE 1.x */
> > > +} VMX_Type;
> > > +
> > Can names be prefixed with VMPort pls? VMX has specific unrelated meaning.
> > 
> > Same everywhere.
> I didn't thought it matters much given that this enum is only defined
> locally in vmport.c.
> But sure I can rename it in v2.
> 
> -Liran

Property names matter more.


> > 
> > >   #define VMPORT(obj) OBJECT_CHECK(VMPortState, (obj), TYPE_VMPORT)
> > >   typedef struct VMPortState {
> > > @@ -46,6 +55,7 @@ typedef struct VMPortState {
> > >       void *opaque[VMPORT_ENTRIES];
> > >       uint32_t vmx_version;
> > > +    uint8_t vmx_type;
> > >   } VMPortState;
> > >   static VMPortState *port_state;
> > > @@ -114,6 +124,7 @@ static uint32_t vmport_cmd_get_version(void *opaque, uint32_t addr)
> > >       X86CPU *cpu = X86_CPU(current_cpu);
> > >       cpu->env.regs[R_EBX] = VMPORT_MAGIC;
> > > +    cpu->env.regs[R_ECX] = port_state->vmx_type;
> > >       return port_state->vmx_version;
> > >   }
> > > @@ -173,6 +184,8 @@ static void vmport_realizefn(DeviceState *dev, Error **errp)
> > >   static Property vmport_properties[] = {
> > >       /* Default value taken from open-vm-tools code VERSION_MAGIC definition */
> > >       DEFINE_PROP_UINT32("vmx-version", VMPortState, vmx_version, 6),
> > > +    DEFINE_PROP_UINT8("vmx-type", VMPortState, vmx_type,
> > > +                      VMX_TYPE_SCALABLE_SERVER),
> > >       DEFINE_PROP_END_OF_LIST(),
> > >   };
> > > -- 
> > > 2.20.1