Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Gleb Natapov:
 "The highlights of the release are nested EPT and pv-ticketlocks
  support (hypervisor part, guest part, which is most of the code, goes
  through tip tree).  Apart of that there are many fixes for all arches"

Fix up semantic conflicts as discussed in the pull request thread..

* 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (88 commits)
  ARM: KVM: Add newlines to panic strings
  ARM: KVM: Work around older compiler bug
  ARM: KVM: Simplify tracepoint text
  ARM: KVM: Fix kvm_set_pte assignment
  ARM: KVM: vgic: Bump VGIC_NR_IRQS to 256
  ARM: KVM: Bugfix: vgic_bytemap_get_reg per cpu regs
  ARM: KVM: vgic: fix GICD_ICFGRn access
  ARM: KVM: vgic: simplify vgic_get_target_reg
  KVM: MMU: remove unused parameter
  KVM: PPC: Book3S PR: Rework kvmppc_mmu_book3s_64_xlate()
  KVM: PPC: Book3S PR: Make instruction fetch fallback work for system calls
  KVM: PPC: Book3S PR: Don't corrupt guest state when kernel uses VMX
  KVM: x86: update masterclock when kvmclock_offset is calculated (v2)
  KVM: PPC: Book3S: Fix compile error in XICS emulation
  KVM: PPC: Book3S PR: return appropriate error when allocation fails
  arch: powerpc: kvm: add signed type cast for comparation
  KVM: x86: add comments where MMIO does not return to the emulator
  KVM: vmx: count exits to userspace during invalid guest emulation
  KVM: rename __kvm_io_bus_sort_cmp to kvm_io_bus_cmp
  kvm: optimize away THP checks in kvm_is_mmio_pfn()
  ...

3 files changed, 14 insertions, 3 deletions

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index f87f7fcefa0a..c76ff74a98f2 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -286,6 +286,7 @@ struct kvm_mmu {
         u64 *pae_root;
         u64 *lm_root;
         u64 rsvd_bits_mask[2][4];
+        u64 bad_mt_xwr;
 
         /*
          * Bitmap: bit set = last pte in walk
@@ -323,6 +324,7 @@ struct kvm_pmu {
         u64 global_ovf_ctrl;
         u64 counter_bitmask[2];
         u64 global_ctrl_mask;
+        u64 reserved_bits;
         u8 version;
         struct kvm_pmc gp_counters[INTEL_PMC_MAX_GENERIC];
         struct kvm_pmc fixed_counters[INTEL_PMC_MAX_FIXED];
@@ -511,6 +513,14 @@ struct kvm_vcpu_arch {
          * instruction.
          */
         bool write_fault_to_shadow_pgtable;
+
+        /* set at EPT violation at this point */
+        unsigned long exit_qualification;
+
+        /* pv related host specific info */
+        struct {
+                bool pv_unhalted;
+        } pv;
 };
 
 struct kvm_lpage_info {
@@ -802,8 +812,8 @@ extern u32  kvm_min_guest_tsc_khz;
 extern u32  kvm_max_guest_tsc_khz;
 
 enum emulation_result {
-        EMULATE_DONE,       /* no further processing */
-        EMULATE_DO_MMIO,      /* kvm_run filled with mmio request */
+        EMULATE_DONE,         /* no further processing */
+        EMULATE_USER_EXIT,    /* kvm_run ready for userspace exit */
         EMULATE_FAIL,         /* can't emulate this instruction */
 };
 
diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h
index 109a9dd5d454..be8269b00e2a 100644
--- a/arch/x86/include/asm/pvclock.h
+++ b/arch/x86/include/asm/pvclock.h
@@ -93,7 +93,6 @@ unsigned __pvclock_read_cycles(const struct pvclock_vcpu_time_info *src,
 
 struct pvclock_vsyscall_time_info {
         struct pvclock_vcpu_time_info pvti;
-        u32 migrate_count;
 } __attribute__((__aligned__(SMP_CACHE_BYTES)));
 
 #define PVTI_SIZE sizeof(struct pvclock_vsyscall_time_info)
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index f3e01a2cbaa1..966502d4682e 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -387,6 +387,7 @@ enum vmcs_field {
 #define VMX_EPT_EXTENT_INDIVIDUAL_ADDR          0
 #define VMX_EPT_EXTENT_CONTEXT                  1
 #define VMX_EPT_EXTENT_GLOBAL                   2
+#define VMX_EPT_EXTENT_SHIFT                    24
 
 #define VMX_EPT_EXECUTE_ONLY_BIT                (1ull)
 #define VMX_EPT_PAGE_WALK_4_BIT                 (1ull << 6)
@@ -394,6 +395,7 @@ enum vmcs_field {
 #define VMX_EPTP_WB_BIT                         (1ull << 14)
 #define VMX_EPT_2MB_PAGE_BIT                    (1ull << 16)
 #define VMX_EPT_1GB_PAGE_BIT                    (1ull << 17)
+#define VMX_EPT_INVEPT_BIT                      (1ull << 20)
 #define VMX_EPT_AD_BIT                              (1ull << 21)
 #define VMX_EPT_EXTENT_CONTEXT_BIT              (1ull << 25)
 #define VMX_EPT_EXTENT_GLOBAL_BIT               (1ull << 26)