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

e2a0f813 · Linus Torvalds <[email protected]> · 2014-01-31 08:37:32 -08:00

Pull more KVM updates from Paolo Bonzini:
 "Second batch of KVM updates.  Some minor x86 fixes, two s390 guest
  features that need some handling in the host, and all the PPC changes.

  The PPC changes include support for little-endian guests and
  enablement for new POWER8 features"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (45 commits)
  x86, kvm: correctly access the KVM_CPUID_FEATURES leaf at 0x40000101
  x86, kvm: cache the base of the KVM cpuid leaves
  kvm: x86: move KVM_CAP_HYPERV_TIME outside #ifdef
  KVM: PPC: Book3S PR: Cope with doorbell interrupts
  KVM: PPC: Book3S HV: Add software abort codes for transactional memory
  KVM: PPC: Book3S HV: Add new state for transactional memory
  powerpc/Kconfig: Make TM select VSX and VMX
  KVM: PPC: Book3S HV: Basic little-endian guest support
  KVM: PPC: Book3S HV: Add support for DABRX register on POWER7
  KVM: PPC: Book3S HV: Prepare for host using hypervisor doorbells
  KVM: PPC: Book3S HV: Handle new LPCR bits on POWER8
  KVM: PPC: Book3S HV: Handle guest using doorbells for IPIs
  KVM: PPC: Book3S HV: Consolidate code that checks reason for wake from nap
  KVM: PPC: Book3S HV: Implement architecture compatibility modes for POWER8
  KVM: PPC: Book3S HV: Add handler for HV facility unavailable
  KVM: PPC: Book3S HV: Flush the correct number of TLB sets on POWER8
  KVM: PPC: Book3S HV: Context-switch new POWER8 SPRs
  KVM: PPC: Book3S HV: Align physical and virtual CPU thread numbers
  KVM: PPC: Book3S HV: Don't set DABR on POWER8
  kvm/ppc: IRQ disabling cleanup
  ...

Commit: e2a0f813e0d53014b78aae76f0359c8a41f05eeb
Parents: e30b82bb · b73117c4

Merge commit. Changes below are compared with the first parent: e30b82bb.

Changes

53 files changed · +1715 −1122

File	Status	Add	Del	Content
Documentation/virtual/kvm/api.txt	modified	+1	−0	View file
arch/powerpc/Kconfig	modified	+2	−0	View file
arch/powerpc/include/asm/epapr_hcalls.h	modified	+111	−0	View file
arch/powerpc/include/asm/kvm_asm.h	modified	+3	−0	View file
arch/powerpc/include/asm/kvm_book3s.h	modified	+13	−14	View file
arch/powerpc/include/asm/kvm_book3s_asm.h	modified	+1	−0	View file
arch/powerpc/include/asm/kvm_booke.h	modified	+6	−0	View file
arch/powerpc/include/asm/kvm_host.h	modified	+51	−10	View file
arch/powerpc/include/asm/kvm_para.h	modified	+1	−79	View file
arch/powerpc/include/asm/kvm_ppc.h	modified	+10	−3	View file
arch/powerpc/include/asm/pgtable.h	modified	+21	−0	View file
arch/powerpc/include/asm/reg.h	modified	+35	−8	View file
arch/powerpc/include/asm/switch_to.h	modified	+0	−2	View file
arch/powerpc/include/uapi/asm/kvm.h	modified	+3	−0	View file
arch/powerpc/include/uapi/asm/tm.h	modified	+2	−0	View file
arch/powerpc/kernel/asm-offsets.c	modified	+42	−8	View file
arch/powerpc/kernel/kvm.c	modified	+2	−39	View file
arch/powerpc/kvm/44x.c	modified	+4	−0	View file
arch/powerpc/kvm/book3s.c	modified	+38	−8	View file
arch/powerpc/kvm/book3s_32_mmu_host.c	modified	+5	−0	View file
arch/powerpc/kvm/book3s_64_mmu_hv.c	modified	+2	−2	View file
arch/powerpc/kvm/book3s_exports.c	modified	+0	−4	View file
arch/powerpc/kvm/book3s_hv.c	modified	+241	−78	View file
arch/powerpc/kvm/book3s_hv_interrupts.S	modified	+4	−4	View file
arch/powerpc/kvm/book3s_hv_rm_mmu.c	modified	+5	−3	View file
arch/powerpc/kvm/book3s_hv_rmhandlers.S	modified	+745	−468	View file
arch/powerpc/kvm/book3s_paired_singles.c	modified	+83	−86	View file
arch/powerpc/kvm/book3s_pr.c	modified	+34	−121	View file
arch/powerpc/kvm/book3s_rmhandlers.S	modified	+0	−47	View file
arch/powerpc/kvm/book3s_segment.S	modified	+2	−0	View file
arch/powerpc/kvm/book3s_xics.c	modified	+3	−1	View file
arch/powerpc/kvm/booke.c	modified	+6	−38	View file
arch/powerpc/kvm/booke.h	modified	+4	−1	View file
arch/powerpc/kvm/bookehv_interrupts.S	modified	+11	−0	View file
arch/powerpc/kvm/e500.c	modified	+4	−0	View file
arch/powerpc/kvm/e500.h	modified	+5	−3	View file
arch/powerpc/kvm/e500_mmu.c	modified	+1	−1	View file
arch/powerpc/kvm/e500_mmu_host.c	modified	+34	−25	View file
arch/powerpc/kvm/e500mc.c	modified	+4	−0	View file
arch/powerpc/kvm/emulate.c	modified	+0	−1	View file
arch/powerpc/kvm/mpic.c	modified	+1	−0	View file
arch/powerpc/kvm/powerpc.c	modified	+35	−23	View file
arch/s390/include/asm/kvm_host.h	modified	+14	−1	View file
arch/s390/kvm/intercept.c	modified	+11	−0	View file
arch/s390/kvm/kvm-s390.c	modified	+11	−6	View file
arch/s390/kvm/kvm-s390.h	modified	+6	−0	View file
arch/x86/include/asm/kvm_para.h	modified	+12	−21	View file
arch/x86/kernel/kvm.c	modified	+32	−0	View file
arch/x86/kvm/cpuid.h	modified	+8	−0	View file
arch/x86/kvm/lapic.h	modified	+1	−1	View file
arch/x86/kvm/vmx.c	modified	+5	−4	View file
arch/x86/kvm/x86.c	modified	+31	−10	View file
drivers/s390/kvm/virtio_ccw.c	modified	+9	−2	View file

Only the first 600 diff lines are shown. Download the complete patch.

Documentation/virtual/kvm/api.txt

View file

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 366bf4b..6cd63a9 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1838,6 +1838,7 @@ registers, find a list below:
   PPC   | KVM_REG_PPC_LPCR	| 64
   PPC   | KVM_REG_PPC_PPR	| 64
   PPC   | KVM_REG_PPC_ARCH_COMPAT 32
+  PPC   | KVM_REG_PPC_DABRX     | 32
   PPC   | KVM_REG_PPC_TM_GPR0	| 64
           ...
   PPC   | KVM_REG_PPC_TM_GPR31	| 64

arch/powerpc/Kconfig

View file

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a5e5d2e..957bf34 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -342,6 +342,8 @@ config PPC_TRANSACTIONAL_MEM
        bool "Transactional Memory support for POWERPC"
        depends on PPC_BOOK3S_64
        depends on SMP
+       select ALTIVEC
+       select VSX
        default n
        ---help---
          Support user-mode Transactional Memory on POWERPC.

arch/powerpc/include/asm/epapr_hcalls.h

View file

diff --git a/arch/powerpc/include/asm/epapr_hcalls.h b/arch/powerpc/include/asm/epapr_hcalls.h
index 86b0ac7..334459a 100644
--- a/arch/powerpc/include/asm/epapr_hcalls.h
+++ b/arch/powerpc/include/asm/epapr_hcalls.h
@@ -460,5 +460,116 @@ static inline unsigned int ev_idle(void)
 
 	return r3;
 }
+
+#ifdef CONFIG_EPAPR_PARAVIRT
+static inline unsigned long epapr_hypercall(unsigned long *in,
+			    unsigned long *out,
+			    unsigned long nr)
+{
+	unsigned long register r0 asm("r0");
+	unsigned long register r3 asm("r3") = in[0];
+	unsigned long register r4 asm("r4") = in[1];
+	unsigned long register r5 asm("r5") = in[2];
+	unsigned long register r6 asm("r6") = in[3];
+	unsigned long register r7 asm("r7") = in[4];
+	unsigned long register r8 asm("r8") = in[5];
+	unsigned long register r9 asm("r9") = in[6];
+	unsigned long register r10 asm("r10") = in[7];
+	unsigned long register r11 asm("r11") = nr;
+	unsigned long register r12 asm("r12");
+
+	asm volatile("bl	epapr_hypercall_start"
+		     : "=r"(r0), "=r"(r3), "=r"(r4), "=r"(r5), "=r"(r6),
+		       "=r"(r7), "=r"(r8), "=r"(r9), "=r"(r10), "=r"(r11),
+		       "=r"(r12)
+		     : "r"(r3), "r"(r4), "r"(r5), "r"(r6), "r"(r7), "r"(r8),
+		       "r"(r9), "r"(r10), "r"(r11)
+		     : "memory", "cc", "xer", "ctr", "lr");
+
+	out[0] = r4;
+	out[1] = r5;
+	out[2] = r6;
+	out[3] = r7;
+	out[4] = r8;
+	out[5] = r9;
+	out[6] = r10;
+	out[7] = r11;
+
+	return r3;
+}
+#else
+static unsigned long epapr_hypercall(unsigned long *in,
+				   unsigned long *out,
+				   unsigned long nr)
+{
+	return EV_UNIMPLEMENTED;
+}
+#endif
+
+static inline long epapr_hypercall0_1(unsigned int nr, unsigned long *r2)
+{
+	unsigned long in[8];
+	unsigned long out[8];
+	unsigned long r;
+
+	r = epapr_hypercall(in, out, nr);
+	*r2 = out[0];
+
+	return r;
+}
+
+static inline long epapr_hypercall0(unsigned int nr)
+{
+	unsigned long in[8];
+	unsigned long out[8];
+
+	return epapr_hypercall(in, out, nr);
+}
+
+static inline long epapr_hypercall1(unsigned int nr, unsigned long p1)
+{
+	unsigned long in[8];
+	unsigned long out[8];
+
+	in[0] = p1;
+	return epapr_hypercall(in, out, nr);
+}
+
+static inline long epapr_hypercall2(unsigned int nr, unsigned long p1,
+				    unsigned long p2)
+{
+	unsigned long in[8];
+	unsigned long out[8];
+
+	in[0] = p1;
+	in[1] = p2;
+	return epapr_hypercall(in, out, nr);
+}
+
+static inline long epapr_hypercall3(unsigned int nr, unsigned long p1,
+				    unsigned long p2, unsigned long p3)
+{
+	unsigned long in[8];
+	unsigned long out[8];
+
+	in[0] = p1;
+	in[1] = p2;
+	in[2] = p3;
+	return epapr_hypercall(in, out, nr);
+}
+
+static inline long epapr_hypercall4(unsigned int nr, unsigned long p1,
+				    unsigned long p2, unsigned long p3,
+				    unsigned long p4)
+{
+	unsigned long in[8];
+	unsigned long out[8];
+
+	in[0] = p1;
+	in[1] = p2;
+	in[2] = p3;
+	in[3] = p4;
+	return epapr_hypercall(in, out, nr);
+}
 #endif /* !__ASSEMBLY__ */
 #endif /* _EPAPR_HCALLS_H */

arch/powerpc/include/asm/kvm_asm.h

View file

diff --git a/arch/powerpc/include/asm/kvm_asm.h b/arch/powerpc/include/asm/kvm_asm.h
index 1503d8c..19eb74a 100644
--- a/arch/powerpc/include/asm/kvm_asm.h
+++ b/arch/powerpc/include/asm/kvm_asm.h
@@ -92,14 +92,17 @@
 #define BOOK3S_INTERRUPT_FP_UNAVAIL	0x800
 #define BOOK3S_INTERRUPT_DECREMENTER	0x900
 #define BOOK3S_INTERRUPT_HV_DECREMENTER	0x980
+#define BOOK3S_INTERRUPT_DOORBELL	0xa00
 #define BOOK3S_INTERRUPT_SYSCALL	0xc00
 #define BOOK3S_INTERRUPT_TRACE		0xd00
 #define BOOK3S_INTERRUPT_H_DATA_STORAGE	0xe00
 #define BOOK3S_INTERRUPT_H_INST_STORAGE	0xe20
 #define BOOK3S_INTERRUPT_H_EMUL_ASSIST	0xe40
+#define BOOK3S_INTERRUPT_H_DOORBELL	0xe80
 #define BOOK3S_INTERRUPT_PERFMON	0xf00
 #define BOOK3S_INTERRUPT_ALTIVEC	0xf20
 #define BOOK3S_INTERRUPT_VSX		0xf40
+#define BOOK3S_INTERRUPT_H_FAC_UNAVAIL	0xf80
 
 #define BOOK3S_IRQPRIO_SYSTEM_RESET		0
 #define BOOK3S_IRQPRIO_DATA_SEGMENT		1

arch/powerpc/include/asm/kvm_book3s.h

View file

diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index bc23b1b..83851aa 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -186,9 +186,6 @@ extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
 
 extern void kvmppc_entry_trampoline(void);
 extern void kvmppc_hv_entry_trampoline(void);
-extern void kvmppc_load_up_fpu(void);
-extern void kvmppc_load_up_altivec(void);
-extern void kvmppc_load_up_vsx(void);
 extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
 extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
 extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
@@ -271,16 +268,25 @@ static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
 	return vcpu->arch.pc;
 }
 
-static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
+static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
 {
-	ulong pc = kvmppc_get_pc(vcpu);
+	return (vcpu->arch.shared->msr & MSR_LE) != (MSR_KERNEL & MSR_LE);
+}
 
+static inline u32 kvmppc_get_last_inst_internal(struct kvm_vcpu *vcpu, ulong pc)
+{
 	/* Load the instruction manually if it failed to do so in the
 	 * exit path */
 	if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
 		kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
 
-	return vcpu->arch.last_inst;
+	return kvmppc_need_byteswap(vcpu) ? swab32(vcpu->arch.last_inst) :
+		vcpu->arch.last_inst;
+}
+
+static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
+{
+	return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu));
 }
 
 /*
@@ -290,14 +296,7 @@ static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
  */
 static inline u32 kvmppc_get_last_sc(struct kvm_vcpu *vcpu)
 {
-	ulong pc = kvmppc_get_pc(vcpu) - 4;
-
-	/* Load the instruction manually if it failed to do so in the
-	 * exit path */
-	if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
-		kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
-
-	return vcpu->arch.last_inst;
+	return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu) - 4);
 }
 
 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)

arch/powerpc/include/asm/kvm_book3s_asm.h

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diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h
index 192917d..f3a91dc 100644
--- a/arch/powerpc/include/asm/kvm_book3s_asm.h
+++ b/arch/powerpc/include/asm/kvm_book3s_asm.h
@@ -88,6 +88,7 @@ struct kvmppc_host_state {
 	u8 hwthread_req;
 	u8 hwthread_state;
 	u8 host_ipi;
+	u8 ptid;
 	struct kvm_vcpu *kvm_vcpu;
 	struct kvmppc_vcore *kvm_vcore;
 	unsigned long xics_phys;

arch/powerpc/include/asm/kvm_booke.h

View file

diff --git a/arch/powerpc/include/asm/kvm_booke.h b/arch/powerpc/include/asm/kvm_booke.h
index dd8f615..80d46b5 100644
--- a/arch/powerpc/include/asm/kvm_booke.h
+++ b/arch/powerpc/include/asm/kvm_booke.h
@@ -63,6 +63,12 @@ static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
 	return vcpu->arch.xer;
 }
 
+static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
+{
+	/* XXX Would need to check TLB entry */
+	return false;
+}
+
 static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.last_inst;

arch/powerpc/include/asm/kvm_host.h

View file

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 237d1d2..1eaea2d 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -288,6 +288,7 @@ struct kvmppc_vcore {
 	int n_woken;
 	int nap_count;
 	int napping_threads;
+	int first_vcpuid;
 	u16 pcpu;
 	u16 last_cpu;
 	u8 vcore_state;
@@ -298,10 +299,12 @@ struct kvmppc_vcore {
 	u64 stolen_tb;
 	u64 preempt_tb;
 	struct kvm_vcpu *runner;
+	struct kvm *kvm;
 	u64 tb_offset;		/* guest timebase - host timebase */
 	ulong lpcr;
 	u32 arch_compat;
 	ulong pcr;
+	ulong dpdes;		/* doorbell state (POWER8) */
 };
 
 #define VCORE_ENTRY_COUNT(vc)	((vc)->entry_exit_count & 0xff)
@@ -410,8 +413,7 @@ struct kvm_vcpu_arch {
 
 	ulong gpr[32];
 
-	u64 fpr[32];
-	u64 fpscr;
+	struct thread_fp_state fp;
 
 #ifdef CONFIG_SPE
 	ulong evr[32];
@@ -420,12 +422,7 @@ struct kvm_vcpu_arch {
 	u64 acc;
 #endif
 #ifdef CONFIG_ALTIVEC
-	vector128 vr[32];
-	vector128 vscr;
-#endif
-
-#ifdef CONFIG_VSX
-	u64 vsr[64];
+	struct thread_vr_state vr;
 #endif
 
 #ifdef CONFIG_KVM_BOOKE_HV
@@ -452,6 +449,7 @@ struct kvm_vcpu_arch {
 	ulong pc;
 	ulong ctr;
 	ulong lr;
+	ulong tar;
 
 	ulong xer;
 	u32 cr;
@@ -461,13 +459,30 @@ struct kvm_vcpu_arch {
 	ulong guest_owned_ext;
 	ulong purr;
 	ulong spurr;
+	ulong ic;
+	ulong vtb;
 	ulong dscr;
 	ulong amr;
 	ulong uamor;
+	ulong iamr;
 	u32 ctrl;
+	u32 dabrx;
 	ulong dabr;
+	ulong dawr;
+	ulong dawrx;
+	ulong ciabr;
 	ulong cfar;
 	ulong ppr;
+	ulong pspb;
+	ulong fscr;
+	ulong ebbhr;
+	ulong ebbrr;
+	ulong bescr;
+	ulong csigr;
+	ulong tacr;
+	ulong tcscr;
+	ulong acop;
+	ulong wort;
 	ulong shadow_srr1;
 #endif
 	u32 vrsave; /* also USPRG0 */
@@ -502,10 +517,33 @@ struct kvm_vcpu_arch {
 	u32 ccr1;
 	u32 dbsr;
 
-	u64 mmcr[3];
+	u64 mmcr[5];
 	u32 pmc[8];
+	u32 spmc[2];
 	u64 siar;
 	u64 sdar;
+	u64 sier;
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+	u64 tfhar;
+	u64 texasr;
+	u64 tfiar;
+
+	u32 cr_tm;
+	u64 lr_tm;
+	u64 ctr_tm;
+	u64 amr_tm;
+	u64 ppr_tm;
+	u64 dscr_tm;
+	u64 tar_tm;
+
+	ulong gpr_tm[32];
+
+	struct thread_fp_state fp_tm;
+
+	struct thread_vr_state vr_tm;
+	u32 vrsave_tm; /* also USPRG0 */
+
+#endif
 
 #ifdef CONFIG_KVM_EXIT_TIMING
 	struct mutex exit_timing_lock;
@@ -546,6 +584,7 @@ struct kvm_vcpu_arch {
 #endif
 	gpa_t paddr_accessed;
 	gva_t vaddr_accessed;
+	pgd_t *pgdir;
 
 	u8 io_gpr; /* GPR used as IO source/target */
 	u8 mmio_is_bigendian;
@@ -603,7 +642,6 @@ struct kvm_vcpu_arch {
 	struct list_head run_list;
 	struct task_struct *run_task;
 	struct kvm_run *kvm_run;
-	pgd_t *pgdir;
 
 	spinlock_t vpa_update_lock;
 	struct kvmppc_vpa vpa;
@@ -616,9 +654,12 @@ struct kvm_vcpu_arch {
 	spinlock_t tbacct_lock;
 	u64 busy_stolen;
 	u64 busy_preempt;
+	unsigned long intr_msr;
 #endif
 };
 
+#define VCPU_FPR(vcpu, i)	(vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
+
 /* Values for vcpu->arch.state */
 #define KVMPPC_VCPU_NOTREADY		0
 #define KVMPPC_VCPU_RUNNABLE		1

arch/powerpc/include/asm/kvm_para.h

View file

diff --git a/arch/powerpc/include/asm/kvm_para.h b/arch/powerpc/include/asm/kvm_para.h
index 2b11965..336a91a 100644
--- a/arch/powerpc/include/asm/kvm_para.h
+++ b/arch/powerpc/include/asm/kvm_para.h
@@ -39,10 +39,6 @@ static inline int kvm_para_available(void)
 	return 1;
 }
 
-extern unsigned long kvm_hypercall(unsigned long *in,
-				   unsigned long *out,
-				   unsigned long nr);
-
 #else
 
 static inline int kvm_para_available(void)
@@ -50,82 +46,8 @@ static inline int kvm_para_available(void)
 	return 0;
 }
 
-static unsigned long kvm_hypercall(unsigned long *in,
-				   unsigned long *out,
-				   unsigned long nr)
-{
-	return EV_UNIMPLEMENTED;
-}
-
 #endif
 
-static inline long kvm_hypercall0_1(unsigned int nr, unsigned long *r2)
-{
-	unsigned long in[8];
-	unsigned long out[8];
-	unsigned long r;
-
-	r = kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
-	*r2 = out[0];
-
-	return r;
-}
-
-static inline long kvm_hypercall0(unsigned int nr)
-{
-	unsigned long in[8];
-	unsigned long out[8];
-
-	return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
-}
-
-static inline long kvm_hypercall1(unsigned int nr, unsigned long p1)
-{
-	unsigned long in[8];
-	unsigned long out[8];
-
-	in[0] = p1;
-	return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
-}
-
-static inline long kvm_hypercall2(unsigned int nr, unsigned long p1,
-				  unsigned long p2)
-{
-	unsigned long in[8];
-	unsigned long out[8];
-
-	in[0] = p1;
-	in[1] = p2;
-	return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
-}
-
-static inline long kvm_hypercall3(unsigned int nr, unsigned long p1,
-				  unsigned long p2, unsigned long p3)
-{
-	unsigned long in[8];
-	unsigned long out[8];
-
-	in[0] = p1;
-	in[1] = p2;
-	in[2] = p3;
-	return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
-}
-
-static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
-				  unsigned long p2, unsigned long p3,
-				  unsigned long p4)
-{
-	unsigned long in[8];
-	unsigned long out[8];
-
-	in[0] = p1;
-	in[1] = p2;
-	in[2] = p3;
-	in[3] = p4;
-	return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
-}
-
-
 static inline unsigned int kvm_arch_para_features(void)
 {
 	unsigned long r;
@@ -133,7 +55,7 @@ static inline unsigned int kvm_arch_para_features(void)
 	if (!kvm_para_available())
 		return 0;
 
-	if(kvm_hypercall0_1(KVM_HC_FEATURES, &r))
+	if(epapr_hypercall0_1(KVM_HCALL_TOKEN(KVM_HC_FEATURES), &r))
 		return 0;
 
 	return r;

arch/powerpc/include/asm/kvm_ppc.h

View file

diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index c8317fb..fcd53f0 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -54,12 +54,13 @@ extern void kvmppc_handler_highmem(void);
 extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
 extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
                               unsigned int rt, unsigned int bytes,
-                              int is_bigendian);
+			      int is_default_endian);
 extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
                                unsigned int rt, unsigned int bytes,
-                               int is_bigendian);
+			       int is_default_endian);
 extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
-                               u64 val, unsigned int bytes, int is_bigendian);
+			       u64 val, unsigned int bytes,
+			       int is_default_endian);
 
 extern int kvmppc_emulate_instruction(struct kvm_run *run,
                                       struct kvm_vcpu *vcpu);
@@ -455,6 +456,12 @@ static inline void kvmppc_fix_ee_before_entry(void)
 	trace_hardirqs_on();
 
 #ifdef CONFIG_PPC64
+	/*
+	 * To avoid races, the caller must have gone directly from having
+	 * interrupts fully-enabled to hard-disabled.
+	 */
+	WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
+
 	/* Only need to enable IRQs by hard enabling them after this */
 	local_paca->irq_happened = 0;
 	local_paca->soft_enabled = 1;

arch/powerpc/include/asm/pgtable.h

View file

diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index b999ca3..f83b6f3 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -287,6 +287,27 @@ extern int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
 #endif
 pte_t *find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea,
 				 unsigned *shift);
+
+static inline pte_t *lookup_linux_ptep(pgd_t *pgdir, unsigned long hva,
+				     unsigned long *pte_sizep)
+{
+	pte_t *ptep;
+	unsigned long ps = *pte_sizep;
+	unsigned int shift;
+
+	ptep = find_linux_pte_or_hugepte(pgdir, hva, &shift);
+	if (!ptep)
+		return NULL;
+	if (shift)
+		*pte_sizep = 1ul << shift;
+	else
+		*pte_sizep = PAGE_SIZE;
+
+	if (ps > *pte_sizep)
+		return NULL;
+
+	return ptep;
+}
 #endif /* __ASSEMBLY__ */
 
 #endif /* __KERNEL__ */

arch/powerpc/include/asm/reg.h

View file

diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 62b114e..90c06ec 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -223,17 +223,26 @@
 #define   CTRL_TE	0x00c00000	/* thread enable */
 #define   CTRL_RUNLATCH	0x1
 #define SPRN_DAWR	0xB4
+#define SPRN_CIABR	0xBB
+#define   CIABR_PRIV		0x3
+#define   CIABR_PRIV_USER	1
+#define   CIABR_PRIV_SUPER	2
+#define   CIABR_PRIV_HYPER	3
 #define SPRN_DAWRX	0xBC
-#define   DAWRX_USER	(1UL << 0)
-#define   DAWRX_KERNEL	(1UL << 1)
-#define   DAWRX_HYP	(1UL << 2)
+#define   DAWRX_USER	__MASK(0)
+#define   DAWRX_KERNEL	__MASK(1)