diff options
| author | Scott Wood <scottwood@freescale.com> | 2011-12-20 15:34:43 +0000 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-04-08 12:51:19 +0300 |
| commit | d30f6e480055e5be12e7a03fd11ea912a451daa5 (patch) | |
| tree | e6c367e6f1da4da67b3a395a1a735a09e52067c0 /arch/powerpc/kvm/booke.h | |
| parent | cfac57847a67c4903f34a77e971521531bbc7c77 (diff) | |
KVM: PPC: booke: category E.HV (GS-mode) support
Chips such as e500mc that implement category E.HV in Power ISA 2.06
provide hardware virtualization features, including a new MSR mode for
guest state. The guest OS can perform many operations without trapping
into the hypervisor, including transitions to and from guest userspace.
Since we can use SRR1[GS] to reliably tell whether an exception came from
guest state, instead of messing around with IVPR, we use DO_KVM similarly
to book3s.
Current issues include:
- Machine checks from guest state are not routed to the host handler.
- The guest can cause a host oops by executing an emulated instruction
in a page that lacks read permission. Existing e500/4xx support has
the same problem.
Includes work by Ashish Kalra <Ashish.Kalra@freescale.com>,
Varun Sethi <Varun.Sethi@freescale.com>, and
Liu Yu <yu.liu@freescale.com>.
Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: remove pt_regs usage]
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm/booke.h')
| -rw-r--r-- | arch/powerpc/kvm/booke.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/booke.h b/arch/powerpc/kvm/booke.h index 05d1d99428c..d53bcf2558f 100644 --- a/arch/powerpc/kvm/booke.h +++ b/arch/powerpc/kvm/booke.h @@ -48,7 +48,20 @@ #define BOOKE_IRQPRIO_PERFORMANCE_MONITOR 19 /* Internal pseudo-irqprio for level triggered externals */ #define BOOKE_IRQPRIO_EXTERNAL_LEVEL 20 -#define BOOKE_IRQPRIO_MAX 20 +#define BOOKE_IRQPRIO_DBELL 21 +#define BOOKE_IRQPRIO_DBELL_CRIT 22 +#define BOOKE_IRQPRIO_MAX 23 + +#define BOOKE_IRQMASK_EE ((1 << BOOKE_IRQPRIO_EXTERNAL_LEVEL) | \ + (1 << BOOKE_IRQPRIO_PERFORMANCE_MONITOR) | \ + (1 << BOOKE_IRQPRIO_DBELL) | \ + (1 << BOOKE_IRQPRIO_DECREMENTER) | \ + (1 << BOOKE_IRQPRIO_FIT) | \ + (1 << BOOKE_IRQPRIO_EXTERNAL)) + +#define BOOKE_IRQMASK_CE ((1 << BOOKE_IRQPRIO_DBELL_CRIT) | \ + (1 << BOOKE_IRQPRIO_WATCHDOG) | \ + (1 << BOOKE_IRQPRIO_CRITICAL)) extern unsigned long kvmppc_booke_handlers; @@ -74,4 +87,13 @@ void kvmppc_vcpu_disable_spe(struct kvm_vcpu *vcpu); void kvmppc_booke_vcpu_load(struct kvm_vcpu *vcpu, int cpu); void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu); +enum int_class { + INT_CLASS_NONCRIT, + INT_CLASS_CRIT, + INT_CLASS_MC, + INT_CLASS_DBG, +}; + +void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type); + #endif /* __KVM_BOOKE_H__ */ |