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Re: [Qemu-devel] [RFC PATCH v2 09/15] cpu-model/s390: Add KVM VM attribu
From: |
Michael Mueller |
Subject: |
Re: [Qemu-devel] [RFC PATCH v2 09/15] cpu-model/s390: Add KVM VM attribute interface routines |
Date: |
Fri, 20 Feb 2015 16:18:05 +0100 |
On Fri, 20 Feb 2015 14:59:20 +0100
Alexander Graf <address@hidden> wrote:
> > +typedef struct S390ProcessorProps {
> > + uint64_t cpuid;
> > + uint16_t ibc;
> > + uint8_t pad[6];
> > + uint64_t fac_list[S390_ARCH_FAC_LIST_SIZE_UINT64];
> > +} S390ProcessorProps;
> > +
> > +typedef struct S390MachineProps {
> > + uint64_t cpuid;
> > + uint32_t ibc_range;
> > + uint8_t pad[4];
> > + uint64_t fac_list_mask[S390_ARCH_FAC_LIST_SIZE_UINT64];
> > + uint64_t fac_list[S390_ARCH_FAC_LIST_SIZE_UINT64];
> > +} S390MachineProps;
>
> What are those structs there for? To convert between a kvm facing
> interface to an internal interface?
Yes, that's their current use, but if the interface structs:
+struct kvm_s390_vm_cpu_processor {
+ __u64 cpuid;
+ __u16 ibc;
+ __u8 pad[6];
+ __u64 fac_list[256];
+};
+
+/* kvm S390 machine related attributes are r/o */
+#define KVM_S390_VM_CPU_MACHINE 1
+struct kvm_s390_vm_cpu_machine {
+ __u64 cpuid;
+ __u32 ibc_range;
+ __u8 pad[4];
+ __u64 fac_mask[256];
+ __u64 fac_list[256];
+};
are visible here, I'll reuse them... But stop, that will not work in the
--disable-kvm case... I need them!
>
> I don't think they're necessary. The internal layout is visible from the
> KVM code. Just either spawn the class straight from the kvm file or if
> you consider that ugly, pass the values of that struct that you need as
> function parameters to a function in cpu-models.c.
- Re: [Qemu-devel] [RFC PATCH v2 04/15] cpu-model/s390: Introduce S390 CPU models, (continued)
Re: [Qemu-devel] [RFC PATCH v2 04/15] cpu-model/s390: Introduce S390 CPU models, Alexander Graf, 2015/02/20
[Qemu-devel] [RFC PATCH v2 11/15] cpu-model/s390: Add QMP command query-cpu-model, Michael Mueller, 2015/02/17
[Qemu-devel] [RFC PATCH v2 09/15] cpu-model/s390: Add KVM VM attribute interface routines, Michael Mueller, 2015/02/17
[Qemu-devel] [RFC PATCH v2 15/15] cpu-model/s390: Enable S390 cpu model, Michael Mueller, 2015/02/17
[Qemu-devel] [RFC PATCH v2 06/15] cpu-model/s390: Define cpu model specific facility lists, Michael Mueller, 2015/02/17
[Qemu-devel] [RFC PATCH v2 08/15] cpu-model/s390: Update linux-headers/asm-s390/kvm.h, Michael Mueller, 2015/02/17
[Qemu-devel] [RFC PATCH v2 01/15] cpu-model: Introduce probe mode for machine none, Michael Mueller, 2015/02/17
[Qemu-devel] [RFC PATCH v2 12/15] cpu-model/s390: Extend QMP command query-cpu-definitions, Michael Mueller, 2015/02/17
[Qemu-devel] [RFC PATCH v2 05/15] cpu-model/s390: Introduce S390 CPU facilities, Michael Mueller, 2015/02/17