Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull second round of KVM changes from Paolo Bonzini:
 "Here are the PPC and ARM changes for KVM, which I separated because
  they had small conflicts (respectively within KVM documentation, and
  with 3.16-rc changes).  Since they were all within the subsystem, I
  took care of them.

  Stephen Rothwell reported some snags in PPC builds, but they are all
  fixed now; the latest linux-next report was clean.

  New features for ARM include:
   - KVM VGIC v2 emulation on GICv3 hardware
   - Big-Endian support for arm/arm64 (guest and host)
   - Debug Architecture support for arm64 (arm32 is on Christoffer's todo list)

  And for PPC:
   - Book3S: Good number of LE host fixes, enable HV on LE
   - Book3S HV: Add in-guest debug support

  This release drops support for KVM on the PPC440.  As a result, the
  PPC merge removes more lines than it adds.  :)

  I also included an x86 change, since Davidlohr tied it to an
  independent bug report and the reporter quickly provided a Tested-by;
  there was no reason to wait for -rc2"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (122 commits)
  KVM: Move more code under CONFIG_HAVE_KVM_IRQFD
  KVM: nVMX: fix "acknowledge interrupt on exit" when APICv is in use
  KVM: nVMX: Fix nested vmexit ack intr before load vmcs01
  KVM: PPC: Enable IRQFD support for the XICS interrupt controller
  KVM: Give IRQFD its own separate enabling Kconfig option
  KVM: Move irq notifier implementation into eventfd.c
  KVM: Move all accesses to kvm::irq_routing into irqchip.c
  KVM: irqchip: Provide and use accessors for irq routing table
  KVM: Don't keep reference to irq routing table in irqfd struct
  KVM: PPC: drop duplicate tracepoint
  arm64: KVM: fix 64bit CP15 VM access for 32bit guests
  KVM: arm64: GICv3: mandate page-aligned GICV region
  arm64: KVM: GICv3: move system register access to msr_s/mrs_s
  KVM: PPC: PR: Handle FSCR feature deselects
  KVM: PPC: HV: Remove generic instruction emulation
  KVM: PPC: BOOKEHV: rename e500hv_spr to bookehv_spr
  KVM: PPC: Remove DCR handling
  KVM: PPC: Expose helper functions for data/inst faults
  KVM: PPC: Separate loadstore emulation from priv emulation
  KVM: PPC: Handle magic page in kvmppc_ld/st
  ...

1 files changed, 16 insertions, 12 deletions

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index bb66d8b8efdf..98d9dd50d063 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -34,6 +34,7 @@
 #include <asm/processor.h>
 #include <asm/page.h>
 #include <asm/cacheflush.h>
+#include <asm/hvcall.h>
 
 #define KVM_MAX_VCPUS		NR_CPUS
 #define KVM_MAX_VCORES		NR_CPUS
@@ -48,7 +49,6 @@
 #define KVM_NR_IRQCHIPS          1
 #define KVM_IRQCHIP_NUM_PINS     256
 
-#if !defined(CONFIG_KVM_440)
 #include <linux/mmu_notifier.h>
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
@@ -61,8 +61,6 @@ extern int kvm_age_hva(struct kvm *kvm, unsigned long hva);
 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
 extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 
-#endif
-
 #define HPTEG_CACHE_NUM			(1 << 15)
 #define HPTEG_HASH_BITS_PTE		13
 #define HPTEG_HASH_BITS_PTE_LONG	12
@@ -96,7 +94,6 @@ struct kvm_vm_stat {
 struct kvm_vcpu_stat {
 	u32 sum_exits;
 	u32 mmio_exits;
-	u32 dcr_exits;
 	u32 signal_exits;
 	u32 light_exits;
 	/* Account for special types of light exits: */
@@ -113,22 +110,21 @@ struct kvm_vcpu_stat {
 	u32 halt_wakeup;
 	u32 dbell_exits;
 	u32 gdbell_exits;
+	u32 ld;
+	u32 st;
 #ifdef CONFIG_PPC_BOOK3S
 	u32 pf_storage;
 	u32 pf_instruc;
 	u32 sp_storage;
 	u32 sp_instruc;
 	u32 queue_intr;
-	u32 ld;
 	u32 ld_slow;
-	u32 st;
 	u32 st_slow;
 #endif
 };
 
 enum kvm_exit_types {
 	MMIO_EXITS,
-	DCR_EXITS,
 	SIGNAL_EXITS,
 	ITLB_REAL_MISS_EXITS,
 	ITLB_VIRT_MISS_EXITS,
@@ -254,7 +250,6 @@ struct kvm_arch {
 	atomic_t hpte_mod_interest;
 	spinlock_t slot_phys_lock;
 	cpumask_t need_tlb_flush;
-	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 	int hpt_cma_alloc;
 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
@@ -263,6 +258,7 @@ struct kvm_arch {
 #ifdef CONFIG_PPC_BOOK3S_64
 	struct list_head spapr_tce_tables;
 	struct list_head rtas_tokens;
+	DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 #endif
 #ifdef CONFIG_KVM_MPIC
 	struct openpic *mpic;
@@ -271,6 +267,10 @@ struct kvm_arch {
 	struct kvmppc_xics *xics;
 #endif
 	struct kvmppc_ops *kvm_ops;
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+	/* This array can grow quite large, keep it at the end */
+	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
+#endif
 };
 
 /*
@@ -305,6 +305,8 @@ struct kvmppc_vcore {
 	u32 arch_compat;
 	ulong pcr;
 	ulong dpdes;		/* doorbell state (POWER8) */
+	void *mpp_buffer; /* Micro Partition Prefetch buffer */
+	bool mpp_buffer_is_valid;
 };
 
 #define VCORE_ENTRY_COUNT(vc)	((vc)->entry_exit_count & 0xff)
@@ -503,8 +505,10 @@ struct kvm_vcpu_arch {
 #ifdef CONFIG_BOOKE
 	u32 decar;
 #endif
-	u32 tbl;
-	u32 tbu;
+	/* Time base value when we entered the guest */
+	u64 entry_tb;
+	u64 entry_vtb;
+	u64 entry_ic;
 	u32 tcr;
 	ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 	u32 ivor[64];
@@ -580,6 +584,8 @@ struct kvm_vcpu_arch {
 	u32 mmucfg;
 	u32 eptcfg;
 	u32 epr;
+	u64 sprg9;
+	u32 pwrmgtcr0;
 	u32 crit_save;
 	/* guest debug registers*/
 	struct debug_reg dbg_reg;
@@ -593,8 +599,6 @@ struct kvm_vcpu_arch {
 	u8 io_gpr; /* GPR used as IO source/target */
 	u8 mmio_is_bigendian;
 	u8 mmio_sign_extend;
-	u8 dcr_needed;
-	u8 dcr_is_write;
 	u8 osi_needed;
 	u8 osi_enabled;
 	u8 papr_enabled;