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Revert "KVM: PPC: Add support for explicit HIOR setting"

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This reverts commit a15bd354f0.

It exceeded the padding on the SREGS struct, rendering the ABI
backwards-incompatible.

Conflicts:

	arch/powerpc/kvm/powerpc.c
	include/linux/kvm.h

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Alexander Graf 2011-11-17 15:26:35 +01:00 committed by Avi Kivity
parent e7fc6f93b4
commit bb75c627fb
5 changed files with 2 additions and 24 deletions
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8
arch/powerpc/include/asm/kvm.h
View File

@ -148,12 +148,6 @@ struct kvm_regs {
#define KVM_SREGS_E_UPDATE_DEC (1 << 2)
#define KVM_SREGS_E_UPDATE_DBSR (1 << 3)
/*
* Book3S special bits to indicate contents in the struct by maintaining
* backwards compatibility with older structs. If adding a new field,
* please make sure to add a flag for that new field */
#define KVM_SREGS_S_HIOR (1 << 0)
/*
* In KVM_SET_SREGS, reserved/pad fields must be left untouched from a
* previous KVM_GET_REGS.
@ -179,8 +173,6 @@ struct kvm_sregs {
__u64 ibat[8];
__u64 dbat[8];
} ppc32;
__u64 flags; /* KVM_SREGS_S_ */
__u64 hior;
} s;
struct {
union {

2
arch/powerpc/include/asm/kvm_book3s.h
View File

@ -90,8 +90,6 @@ struct kvmppc_vcpu_book3s {
#endif
int context_id[SID_CONTEXTS];
bool hior_sregs; /* HIOR is set by SREGS, not PVR */
struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];

14
arch/powerpc/kvm/book3s_pr.c
View File

@ -151,16 +151,14 @@ void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr)
#ifdef CONFIG_PPC_BOOK3S_64
if ((pvr >= 0x330000) && (pvr < 0x70330000)) {
kvmppc_mmu_book3s_64_init(vcpu);
if (!to_book3s(vcpu)->hior_sregs)
to_book3s(vcpu)->hior = 0xfff00000;
to_book3s(vcpu)->hior = 0xfff00000;
to_book3s(vcpu)->msr_mask = 0xffffffffffffffffULL;
vcpu->arch.cpu_type = KVM_CPU_3S_64;
} else
#endif
{
kvmppc_mmu_book3s_32_init(vcpu);
if (!to_book3s(vcpu)->hior_sregs)
to_book3s(vcpu)->hior = 0;
to_book3s(vcpu)->hior = 0;
to_book3s(vcpu)->msr_mask = 0xffffffffULL;
vcpu->arch.cpu_type = KVM_CPU_3S_32;
}
@ -797,9 +795,6 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
}
}
if (sregs->u.s.flags & KVM_SREGS_S_HIOR)
sregs->u.s.hior = to_book3s(vcpu)->hior;
return 0;
}
@ -836,11 +831,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
/* Flush the MMU after messing with the segments */
kvmppc_mmu_pte_flush(vcpu, 0, 0);
if (sregs->u.s.flags & KVM_SREGS_S_HIOR) {
to_book3s(vcpu)->hior_sregs = true;
to_book3s(vcpu)->hior = sregs->u.s.hior;
}
return 0;
}

1
arch/powerpc/kvm/powerpc.c
View File

@ -208,7 +208,6 @@ int kvm_dev_ioctl_check_extension(long ext)
case KVM_CAP_PPC_BOOKE_SREGS:
#else
case KVM_CAP_PPC_SEGSTATE:
case KVM_CAP_PPC_HIOR:
case KVM_CAP_PPC_PAPR:
#endif
case KVM_CAP_PPC_UNSET_IRQ:

1
include/linux/kvm.h
View File

@ -555,7 +555,6 @@ struct kvm_ppc_pvinfo {
#define KVM_CAP_PPC_SMT 64
#define KVM_CAP_PPC_RMA 65
#define KVM_CAP_MAX_VCPUS 66 /* returns max vcpus per vm */
#define KVM_CAP_PPC_HIOR 67
#define KVM_CAP_PPC_PAPR 68
#define KVM_CAP_S390_GMAP 71