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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-10 23:42:49 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-10 23:42:49 (GMT) |
commit | 519f526d391b0ef775aeb04c4b6f632ea6b3ee50 (patch) | |
tree | 36985d7882734c136fc3c9a48e9d9abf9e97c1f1 /arch/powerpc/include | |
parent | 06ab838c2024db468855118087db16d8fa905ddc (diff) | |
parent | ba60c41ae392b473a1897faa0b8739fcb8759d69 (diff) | |
download | linux-519f526d391b0ef775aeb04c4b6f632ea6b3ee50.tar.xz |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull more kvm updates from Paolo Bonzini:
"ARM:
- Full debug support for arm64
- Active state switching for timer interrupts
- Lazy FP/SIMD save/restore for arm64
- Generic ARMv8 target
PPC:
- Book3S: A few bug fixes
- Book3S: Allow micro-threading on POWER8
x86:
- Compiler warnings
Generic:
- Adaptive polling for guest halt"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (49 commits)
kvm: irqchip: fix memory leak
kvm: move new trace event outside #ifdef CONFIG_KVM_ASYNC_PF
KVM: trace kvm_halt_poll_ns grow/shrink
KVM: dynamic halt-polling
KVM: make halt_poll_ns per-vCPU
Silence compiler warning in arch/x86/kvm/emulate.c
kvm: compile process_smi_save_seg_64() only for x86_64
KVM: x86: avoid uninitialized variable warning
KVM: PPC: Book3S: Fix typo in top comment about locking
KVM: PPC: Book3S: Fix size of the PSPB register
KVM: PPC: Book3S HV: Exit on H_DOORBELL if HOST_IPI is set
KVM: PPC: Book3S HV: Fix race in starting secondary threads
KVM: PPC: Book3S: correct width in XER handling
KVM: PPC: Book3S HV: Fix preempted vcore stolen time calculation
KVM: PPC: Book3S HV: Fix preempted vcore list locking
KVM: PPC: Book3S HV: Implement H_CLEAR_REF and H_CLEAR_MOD
KVM: PPC: Book3S HV: Fix bug in dirty page tracking
KVM: PPC: Book3S HV: Fix race in reading change bit when removing HPTE
KVM: PPC: Book3S HV: Implement dynamic micro-threading on POWER8
KVM: PPC: Book3S HV: Make use of unused threads when running guests
...
Diffstat (limited to 'arch/powerpc/include')
-rw-r--r-- | arch/powerpc/include/asm/kvm_book3s.h | 5 | ||||
-rw-r--r-- | arch/powerpc/include/asm/kvm_book3s_asm.h | 22 | ||||
-rw-r--r-- | arch/powerpc/include/asm/kvm_booke.h | 4 | ||||
-rw-r--r-- | arch/powerpc/include/asm/kvm_host.h | 26 | ||||
-rw-r--r-- | arch/powerpc/include/asm/ppc-opcode.h | 2 |
5 files changed, 47 insertions, 12 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index b91e74a..9fac01c 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -158,6 +158,7 @@ extern pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing, bool *writable); extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev, unsigned long *rmap, long pte_index, int realmode); +extern void kvmppc_update_rmap_change(unsigned long *rmap, unsigned long psize); extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep, unsigned long pte_index); void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep, @@ -225,12 +226,12 @@ static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) return vcpu->arch.cr; } -static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) +static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.xer = val; } -static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) +static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu) { return vcpu->arch.xer; } diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h index 5bdfb5d..72b6225 100644 --- a/arch/powerpc/include/asm/kvm_book3s_asm.h +++ b/arch/powerpc/include/asm/kvm_book3s_asm.h @@ -25,6 +25,12 @@ #define XICS_MFRR 0xc #define XICS_IPI 2 /* interrupt source # for IPIs */ +/* Maximum number of threads per physical core */ +#define MAX_SMT_THREADS 8 + +/* Maximum number of subcores per physical core */ +#define MAX_SUBCORES 4 + #ifdef __ASSEMBLY__ #ifdef CONFIG_KVM_BOOK3S_HANDLER @@ -65,6 +71,19 @@ kvmppc_resume_\intno: #else /*__ASSEMBLY__ */ +struct kvmppc_vcore; + +/* Struct used for coordinating micro-threading (split-core) mode changes */ +struct kvm_split_mode { + unsigned long rpr; + unsigned long pmmar; + unsigned long ldbar; + u8 subcore_size; + u8 do_nap; + u8 napped[MAX_SMT_THREADS]; + struct kvmppc_vcore *master_vcs[MAX_SUBCORES]; +}; + /* * This struct goes in the PACA on 64-bit processors. It is used * to store host state that needs to be saved when we enter a guest @@ -100,6 +119,7 @@ struct kvmppc_host_state { u64 host_spurr; u64 host_dscr; u64 dec_expires; + struct kvm_split_mode *kvm_split_mode; #endif #ifdef CONFIG_PPC_BOOK3S_64 u64 cfar; @@ -112,7 +132,7 @@ struct kvmppc_book3s_shadow_vcpu { bool in_use; ulong gpr[14]; u32 cr; - u32 xer; + ulong xer; ulong ctr; ulong lr; ulong pc; diff --git a/arch/powerpc/include/asm/kvm_booke.h b/arch/powerpc/include/asm/kvm_booke.h index 3286f0d..bc6e29e 100644 --- a/arch/powerpc/include/asm/kvm_booke.h +++ b/arch/powerpc/include/asm/kvm_booke.h @@ -54,12 +54,12 @@ static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) return vcpu->arch.cr; } -static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) +static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.xer = val; } -static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) +static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu) { return vcpu->arch.xer; } diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index d91f65b..98eebbf 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -205,8 +205,10 @@ struct revmap_entry { */ #define KVMPPC_RMAP_LOCK_BIT 63 #define KVMPPC_RMAP_RC_SHIFT 32 +#define KVMPPC_RMAP_CHG_SHIFT 48 #define KVMPPC_RMAP_REFERENCED (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT) #define KVMPPC_RMAP_CHANGED (HPTE_R_C << KVMPPC_RMAP_RC_SHIFT) +#define KVMPPC_RMAP_CHG_ORDER (0x3ful << KVMPPC_RMAP_CHG_SHIFT) #define KVMPPC_RMAP_PRESENT 0x100000000ul #define KVMPPC_RMAP_INDEX 0xfffffffful @@ -278,7 +280,9 @@ struct kvmppc_vcore { u16 last_cpu; u8 vcore_state; u8 in_guest; + struct kvmppc_vcore *master_vcore; struct list_head runnable_threads; + struct list_head preempt_list; spinlock_t lock; wait_queue_head_t wq; spinlock_t stoltb_lock; /* protects stolen_tb and preempt_tb */ @@ -300,12 +304,21 @@ struct kvmppc_vcore { #define VCORE_EXIT_MAP(vc) ((vc)->entry_exit_map >> 8) #define VCORE_IS_EXITING(vc) (VCORE_EXIT_MAP(vc) != 0) -/* Values for vcore_state */ +/* This bit is used when a vcore exit is triggered from outside the vcore */ +#define VCORE_EXIT_REQ 0x10000 + +/* + * Values for vcore_state. + * Note that these are arranged such that lower values + * (< VCORE_SLEEPING) don't require stolen time accounting + * on load/unload, and higher values do. + */ #define VCORE_INACTIVE 0 -#define VCORE_SLEEPING 1 -#define VCORE_PREEMPT 2 -#define VCORE_RUNNING 3 -#define VCORE_EXITING 4 +#define VCORE_PREEMPT 1 +#define VCORE_PIGGYBACK 2 +#define VCORE_SLEEPING 3 +#define VCORE_RUNNING 4 +#define VCORE_EXITING 5 /* * Struct used to manage memory for a virtual processor area @@ -473,7 +486,7 @@ struct kvm_vcpu_arch { ulong ciabr; ulong cfar; ulong ppr; - ulong pspb; + u32 pspb; ulong fscr; ulong shadow_fscr; ulong ebbhr; @@ -619,6 +632,7 @@ struct kvm_vcpu_arch { int trap; int state; int ptid; + int thread_cpu; bool timer_running; wait_queue_head_t cpu_run; diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h index 8452335..790f5d1 100644 --- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -287,7 +287,7 @@ /* POWER8 Micro Partition Prefetch (MPP) parameters */ /* Address mask is common for LOGMPP instruction and MPPR SPR */ -#define PPC_MPPE_ADDRESS_MASK 0xffffffffc000 +#define PPC_MPPE_ADDRESS_MASK 0xffffffffc000ULL /* Bits 60 and 61 of MPP SPR should be set to one of the following */ /* Aborting the fetch is indeed setting 00 in the table size bits */ |