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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-15 15:00:28 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-15 15:00:28 -0700 |
commit | 636deed6c0bc137a7c4f4a97ae1fcf0ad75323da (patch) | |
tree | 7bd27189b8e30e3c1466f7730831a08db65f8646 /include/kvm/arm_arch_timer.h | |
parent | aa2e3ac64ace127f403be85aa4d6015b859385f2 (diff) | |
parent | 4a605bc08e98381d8df61c30a4acb2eac15eb7da (diff) | |
download | linux-stable-636deed6c0bc137a7c4f4a97ae1fcf0ad75323da.tar.gz linux-stable-636deed6c0bc137a7c4f4a97ae1fcf0ad75323da.tar.bz2 linux-stable-636deed6c0bc137a7c4f4a97ae1fcf0ad75323da.zip |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"ARM:
- some cleanups
- direct physical timer assignment
- cache sanitization for 32-bit guests
s390:
- interrupt cleanup
- introduction of the Guest Information Block
- preparation for processor subfunctions in cpu models
PPC:
- bug fixes and improvements, especially related to machine checks
and protection keys
x86:
- many, many cleanups, including removing a bunch of MMU code for
unnecessary optimizations
- AVIC fixes
Generic:
- memcg accounting"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (147 commits)
kvm: vmx: fix formatting of a comment
KVM: doc: Document the life cycle of a VM and its resources
MAINTAINERS: Add KVM selftests to existing KVM entry
Revert "KVM/MMU: Flush tlb directly in the kvm_zap_gfn_range()"
KVM: PPC: Book3S: Add count cache flush parameters to kvmppc_get_cpu_char()
KVM: PPC: Fix compilation when KVM is not enabled
KVM: Minor cleanups for kvm_main.c
KVM: s390: add debug logging for cpu model subfunctions
KVM: s390: implement subfunction processor calls
arm64: KVM: Fix architecturally invalid reset value for FPEXC32_EL2
KVM: arm/arm64: Remove unused timer variable
KVM: PPC: Book3S: Improve KVM reference counting
KVM: PPC: Book3S HV: Fix build failure without IOMMU support
Revert "KVM: Eliminate extra function calls in kvm_get_dirty_log_protect()"
x86: kvmguest: use TSC clocksource if invariant TSC is exposed
KVM: Never start grow vCPU halt_poll_ns from value below halt_poll_ns_grow_start
KVM: Expose the initial start value in grow_halt_poll_ns() as a module parameter
KVM: grow_halt_poll_ns() should never shrink vCPU halt_poll_ns
KVM: x86/mmu: Consolidate kvm_mmu_zap_all() and kvm_mmu_zap_mmio_sptes()
KVM: x86/mmu: WARN if zapping a MMIO spte results in zapping children
...
Diffstat (limited to 'include/kvm/arm_arch_timer.h')
-rw-r--r-- | include/kvm/arm_arch_timer.h | 68 |
1 files changed, 49 insertions, 19 deletions
diff --git a/include/kvm/arm_arch_timer.h b/include/kvm/arm_arch_timer.h index 33771352dcd6..05a18dd265b5 100644 --- a/include/kvm/arm_arch_timer.h +++ b/include/kvm/arm_arch_timer.h @@ -22,7 +22,22 @@ #include <linux/clocksource.h> #include <linux/hrtimer.h> +enum kvm_arch_timers { + TIMER_PTIMER, + TIMER_VTIMER, + NR_KVM_TIMERS +}; + +enum kvm_arch_timer_regs { + TIMER_REG_CNT, + TIMER_REG_CVAL, + TIMER_REG_TVAL, + TIMER_REG_CTL, +}; + struct arch_timer_context { + struct kvm_vcpu *vcpu; + /* Registers: control register, timer value */ u32 cnt_ctl; u64 cnt_cval; @@ -30,30 +45,36 @@ struct arch_timer_context { /* Timer IRQ */ struct kvm_irq_level irq; + /* Virtual offset */ + u64 cntvoff; + + /* Emulated Timer (may be unused) */ + struct hrtimer hrtimer; + /* - * We have multiple paths which can save/restore the timer state - * onto the hardware, so we need some way of keeping track of - * where the latest state is. - * - * loaded == true: State is loaded on the hardware registers. - * loaded == false: State is stored in memory. + * We have multiple paths which can save/restore the timer state onto + * the hardware, so we need some way of keeping track of where the + * latest state is. */ - bool loaded; + bool loaded; - /* Virtual offset */ - u64 cntvoff; + /* Duplicated state from arch_timer.c for convenience */ + u32 host_timer_irq; + u32 host_timer_irq_flags; +}; + +struct timer_map { + struct arch_timer_context *direct_vtimer; + struct arch_timer_context *direct_ptimer; + struct arch_timer_context *emul_ptimer; }; struct arch_timer_cpu { - struct arch_timer_context vtimer; - struct arch_timer_context ptimer; + struct arch_timer_context timers[NR_KVM_TIMERS]; /* Background timer used when the guest is not running */ struct hrtimer bg_timer; - /* Physical timer emulation */ - struct hrtimer phys_timer; - /* Is the timer enabled */ bool enabled; }; @@ -76,9 +97,6 @@ int kvm_arm_timer_has_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr); bool kvm_timer_is_pending(struct kvm_vcpu *vcpu); -void kvm_timer_schedule(struct kvm_vcpu *vcpu); -void kvm_timer_unschedule(struct kvm_vcpu *vcpu); - u64 kvm_phys_timer_read(void); void kvm_timer_vcpu_load(struct kvm_vcpu *vcpu); @@ -88,7 +106,19 @@ void kvm_timer_init_vhe(void); bool kvm_arch_timer_get_input_level(int vintid); -#define vcpu_vtimer(v) (&(v)->arch.timer_cpu.vtimer) -#define vcpu_ptimer(v) (&(v)->arch.timer_cpu.ptimer) +#define vcpu_timer(v) (&(v)->arch.timer_cpu) +#define vcpu_get_timer(v,t) (&vcpu_timer(v)->timers[(t)]) +#define vcpu_vtimer(v) (&(v)->arch.timer_cpu.timers[TIMER_VTIMER]) +#define vcpu_ptimer(v) (&(v)->arch.timer_cpu.timers[TIMER_PTIMER]) + +#define arch_timer_ctx_index(ctx) ((ctx) - vcpu_timer((ctx)->vcpu)->timers) + +u64 kvm_arm_timer_read_sysreg(struct kvm_vcpu *vcpu, + enum kvm_arch_timers tmr, + enum kvm_arch_timer_regs treg); +void kvm_arm_timer_write_sysreg(struct kvm_vcpu *vcpu, + enum kvm_arch_timers tmr, + enum kvm_arch_timer_regs treg, + u64 val); #endif |