diff options
| author | David Gibson <david@gibson.dropbear.id.au> | 2017-06-11 20:33:59 +0800 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2017-06-30 14:03:31 +1000 |
| commit | 7843c0d60db694b6d97e14ec5538fb97424016c1 (patch) | |
| tree | 8b01e6524df27e8e46f5ad77696a11dd9701c4ee /target/ppc/cpu.h | |
| parent | a733371214b68881d84725a3c71f60e2faf3b8e2 (diff) | |
pseries: Move CPU compatibility property to machine
Server class POWER CPUs have a "compat" property, which is used to set the
backwards compatibility mode for the processor. However, this only makes
sense for machine types which don't give the guest access to hypervisor
privilege - otherwise the compatibility level is under the guest's control.
To reflect this, this removes the CPU 'compat' property and instead
creates a 'max-cpu-compat' property on the pseries machine. Strictly
speaking this breaks compatibility, but AFAIK the 'compat' option was
never (directly) used with -device or device_add.
The option was used with -cpu. So, to maintain compatibility, this
patch adds a hack to the cpu option parsing to strip out any compat
options supplied with -cpu and set them on the machine property
instead of the now deprecated cpu property.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Tested-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Greg Kurz <groug@kaod.org>
Tested-by: Andrea Bolognani <abologna@redhat.com>
Diffstat (limited to 'target/ppc/cpu.h')
| -rw-r--r-- | target/ppc/cpu.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index d10808d9f4..09393e601f 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -1189,7 +1189,6 @@ typedef struct PPCVirtualHypervisorClass PPCVirtualHypervisorClass; * PowerPCCPU: * @env: #CPUPPCState * @cpu_dt_id: CPU index used in the device tree. KVM uses this index too - * @max_compat: Maximal supported logical PVR from the command line * @compat_pvr: Current logical PVR, zero if in "raw" mode * * A PowerPC CPU. @@ -1201,7 +1200,6 @@ struct PowerPCCPU { CPUPPCState env; int cpu_dt_id; - uint32_t max_compat; uint32_t compat_pvr; PPCVirtualHypervisor *vhyp; Object *intc; @@ -1375,6 +1373,9 @@ void ppc_set_compat(PowerPCCPU *cpu, uint32_t compat_pvr, Error **errp); void ppc_set_compat_all(uint32_t compat_pvr, Error **errp); #endif int ppc_compat_max_threads(PowerPCCPU *cpu); +void ppc_compat_add_property(Object *obj, const char *name, + uint32_t *compat_pvr, const char *basedesc, + Error **errp); #endif /* defined(TARGET_PPC64) */ #include "exec/cpu-all.h" |