summaryrefslogtreecommitdiff
path: root/arch/powerpc
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/kvm.h184
-rw-r--r--arch/powerpc/include/asm/kvm_44x.h1
-rw-r--r--arch/powerpc/include/asm/kvm_e500.h2
-rw-r--r--arch/powerpc/include/asm/kvm_host.h5
-rw-r--r--arch/powerpc/include/asm/kvm_ppc.h9
-rw-r--r--arch/powerpc/kernel/asm-offsets.c1
-rw-r--r--arch/powerpc/kvm/44x.c10
-rw-r--r--arch/powerpc/kvm/44x_emulate.c2
-rw-r--r--arch/powerpc/kvm/booke.c154
-rw-r--r--arch/powerpc/kvm/booke_interrupts.S1
-rw-r--r--arch/powerpc/kvm/e500.c76
-rw-r--r--arch/powerpc/kvm/e500_emulate.c7
-rw-r--r--arch/powerpc/kvm/e500_tlb.c13
-rw-r--r--arch/powerpc/kvm/emulate.c15
-rw-r--r--arch/powerpc/kvm/powerpc.c21
-rw-r--r--arch/powerpc/kvm/timing.c31
16 files changed, 510 insertions, 22 deletions
diff --git a/arch/powerpc/include/asm/kvm.h b/arch/powerpc/include/asm/kvm.h
index 18ea6963ad77..d2ca5ed3877b 100644
--- a/arch/powerpc/include/asm/kvm.h
+++ b/arch/powerpc/include/asm/kvm.h
@@ -45,6 +45,114 @@ struct kvm_regs {
__u64 gpr[32];
};
+#define KVM_SREGS_E_IMPL_NONE 0
+#define KVM_SREGS_E_IMPL_FSL 1
+
+#define KVM_SREGS_E_FSL_PIDn (1 << 0) /* PID1/PID2 */
+
+/*
+ * Feature bits indicate which sections of the sregs struct are valid,
+ * both in KVM_GET_SREGS and KVM_SET_SREGS. On KVM_SET_SREGS, registers
+ * corresponding to unset feature bits will not be modified. This allows
+ * restoring a checkpoint made without that feature, while keeping the
+ * default values of the new registers.
+ *
+ * KVM_SREGS_E_BASE contains:
+ * CSRR0/1 (refers to SRR2/3 on 40x)
+ * ESR
+ * DEAR
+ * MCSR
+ * TSR
+ * TCR
+ * DEC
+ * TB
+ * VRSAVE (USPRG0)
+ */
+#define KVM_SREGS_E_BASE (1 << 0)
+
+/*
+ * KVM_SREGS_E_ARCH206 contains:
+ *
+ * PIR
+ * MCSRR0/1
+ * DECAR
+ * IVPR
+ */
+#define KVM_SREGS_E_ARCH206 (1 << 1)
+
+/*
+ * Contains EPCR, plus the upper half of 64-bit registers
+ * that are 32-bit on 32-bit implementations.
+ */
+#define KVM_SREGS_E_64 (1 << 2)
+
+#define KVM_SREGS_E_SPRG8 (1 << 3)
+#define KVM_SREGS_E_MCIVPR (1 << 4)
+
+/*
+ * IVORs are used -- contains IVOR0-15, plus additional IVORs
+ * in combination with an appropriate feature bit.
+ */
+#define KVM_SREGS_E_IVOR (1 << 5)
+
+/*
+ * Contains MAS0-4, MAS6-7, TLBnCFG, MMUCFG.
+ * Also TLBnPS if MMUCFG[MAVN] = 1.
+ */
+#define KVM_SREGS_E_ARCH206_MMU (1 << 6)
+
+/* DBSR, DBCR, IAC, DAC, DVC */
+#define KVM_SREGS_E_DEBUG (1 << 7)
+
+/* Enhanced debug -- DSRR0/1, SPRG9 */
+#define KVM_SREGS_E_ED (1 << 8)
+
+/* Embedded Floating Point (SPE) -- IVOR32-34 if KVM_SREGS_E_IVOR */
+#define KVM_SREGS_E_SPE (1 << 9)
+
+/* External Proxy (EXP) -- EPR */
+#define KVM_SREGS_EXP (1 << 10)
+
+/* External PID (E.PD) -- EPSC/EPLC */
+#define KVM_SREGS_E_PD (1 << 11)
+
+/* Processor Control (E.PC) -- IVOR36-37 if KVM_SREGS_E_IVOR */
+#define KVM_SREGS_E_PC (1 << 12)
+
+/* Page table (E.PT) -- EPTCFG */
+#define KVM_SREGS_E_PT (1 << 13)
+
+/* Embedded Performance Monitor (E.PM) -- IVOR35 if KVM_SREGS_E_IVOR */
+#define KVM_SREGS_E_PM (1 << 14)
+
+/*
+ * Special updates:
+ *
+ * Some registers may change even while a vcpu is not running.
+ * To avoid losing these changes, by default these registers are
+ * not updated by KVM_SET_SREGS. To force an update, set the bit
+ * in u.e.update_special corresponding to the register to be updated.
+ *
+ * The update_special field is zero on return from KVM_GET_SREGS.
+ *
+ * When restoring a checkpoint, the caller can set update_special
+ * to 0xffffffff to ensure that everything is restored, even new features
+ * that the caller doesn't know about.
+ */
+#define KVM_SREGS_E_UPDATE_MCSR (1 << 0)
+#define KVM_SREGS_E_UPDATE_TSR (1 << 1)
+#define KVM_SREGS_E_UPDATE_DEC (1 << 2)
+#define KVM_SREGS_E_UPDATE_DBSR (1 << 3)
+
+/*
+ * In KVM_SET_SREGS, reserved/pad fields must be left untouched from a
+ * previous KVM_GET_REGS.
+ *
+ * Unless otherwise indicated, setting any register with KVM_SET_SREGS
+ * directly sets its value. It does not trigger any special semantics such
+ * as write-one-to-clear. Calling KVM_SET_SREGS on an unmodified struct
+ * just received from KVM_GET_SREGS is always a no-op.
+ */
struct kvm_sregs {
__u32 pvr;
union {
@@ -62,6 +170,82 @@ struct kvm_sregs {
__u64 dbat[8];
} ppc32;
} s;
+ struct {
+ union {
+ struct { /* KVM_SREGS_E_IMPL_FSL */
+ __u32 features; /* KVM_SREGS_E_FSL_ */
+ __u32 svr;
+ __u64 mcar;
+ __u32 hid0;
+
+ /* KVM_SREGS_E_FSL_PIDn */
+ __u32 pid1, pid2;
+ } fsl;
+ __u8 pad[256];
+ } impl;
+
+ __u32 features; /* KVM_SREGS_E_ */
+ __u32 impl_id; /* KVM_SREGS_E_IMPL_ */
+ __u32 update_special; /* KVM_SREGS_E_UPDATE_ */
+ __u32 pir; /* read-only */
+ __u64 sprg8;
+ __u64 sprg9; /* E.ED */
+ __u64 csrr0;
+ __u64 dsrr0; /* E.ED */
+ __u64 mcsrr0;
+ __u32 csrr1;
+ __u32 dsrr1; /* E.ED */
+ __u32 mcsrr1;
+ __u32 esr;
+ __u64 dear;
+ __u64 ivpr;
+ __u64 mcivpr;
+ __u64 mcsr; /* KVM_SREGS_E_UPDATE_MCSR */
+
+ __u32 tsr; /* KVM_SREGS_E_UPDATE_TSR */
+ __u32 tcr;
+ __u32 decar;
+ __u32 dec; /* KVM_SREGS_E_UPDATE_DEC */
+
+ /*
+ * Userspace can read TB directly, but the
+ * value reported here is consistent with "dec".
+ *
+ * Read-only.
+ */
+ __u64 tb;
+
+ __u32 dbsr; /* KVM_SREGS_E_UPDATE_DBSR */
+ __u32 dbcr[3];
+ __u32 iac[4];
+ __u32 dac[2];
+ __u32 dvc[2];
+ __u8 num_iac; /* read-only */
+ __u8 num_dac; /* read-only */
+ __u8 num_dvc; /* read-only */
+ __u8 pad;
+
+ __u32 epr; /* EXP */
+ __u32 vrsave; /* a.k.a. USPRG0 */
+ __u32 epcr; /* KVM_SREGS_E_64 */
+
+ __u32 mas0;
+ __u32 mas1;
+ __u64 mas2;
+ __u64 mas7_3;
+ __u32 mas4;
+ __u32 mas6;
+
+ __u32 ivor_low[16]; /* IVOR0-15 */
+ __u32 ivor_high[18]; /* IVOR32+, plus room to expand */
+
+ __u32 mmucfg; /* read-only */
+ __u32 eptcfg; /* E.PT, read-only */
+ __u32 tlbcfg[4];/* read-only */
+ __u32 tlbps[4]; /* read-only */
+
+ __u32 eplc, epsc; /* E.PD */
+ } e;
__u8 pad[1020];
} u;
};
diff --git a/arch/powerpc/include/asm/kvm_44x.h b/arch/powerpc/include/asm/kvm_44x.h
index d22d39942a92..a0e57618ff33 100644
--- a/arch/powerpc/include/asm/kvm_44x.h
+++ b/arch/powerpc/include/asm/kvm_44x.h
@@ -61,7 +61,6 @@ static inline struct kvmppc_vcpu_44x *to_44x(struct kvm_vcpu *vcpu)
return container_of(vcpu, struct kvmppc_vcpu_44x, vcpu);
}
-void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 new_pid);
void kvmppc_44x_tlb_put(struct kvm_vcpu *vcpu);
void kvmppc_44x_tlb_load(struct kvm_vcpu *vcpu);
diff --git a/arch/powerpc/include/asm/kvm_e500.h b/arch/powerpc/include/asm/kvm_e500.h
index 7fea26fffb25..7a2a565f88c4 100644
--- a/arch/powerpc/include/asm/kvm_e500.h
+++ b/arch/powerpc/include/asm/kvm_e500.h
@@ -43,6 +43,7 @@ struct kvmppc_vcpu_e500 {
u32 host_pid[E500_PID_NUM];
u32 pid[E500_PID_NUM];
+ u32 svr;
u32 mas0;
u32 mas1;
@@ -58,6 +59,7 @@ struct kvmppc_vcpu_e500 {
u32 hid1;
u32 tlb0cfg;
u32 tlb1cfg;
+ u64 mcar;
struct kvm_vcpu vcpu;
};
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index bba3b9b72a39..186f150b9b89 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -223,6 +223,7 @@ struct kvm_vcpu_arch {
ulong hflags;
ulong guest_owned_ext;
#endif
+ u32 vrsave; /* also USPRG0 */
u32 mmucr;
ulong sprg4;
ulong sprg5;
@@ -232,6 +233,9 @@ struct kvm_vcpu_arch {
ulong csrr1;
ulong dsrr0;
ulong dsrr1;
+ ulong mcsrr0;
+ ulong mcsrr1;
+ ulong mcsr;
ulong esr;
u32 dec;
u32 decar;
@@ -255,6 +259,7 @@ struct kvm_vcpu_arch {
u32 dbsr;
#ifdef CONFIG_KVM_EXIT_TIMING
+ struct mutex exit_timing_lock;
struct kvmppc_exit_timing timing_exit;
struct kvmppc_exit_timing timing_last_enter;
u32 last_exit_type;
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index ecb3bc74c344..9345238edecf 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -61,6 +61,7 @@ extern int kvmppc_emulate_instruction(struct kvm_run *run,
struct kvm_vcpu *vcpu);
extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
+extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb);
/* Core-specific hooks */
@@ -142,4 +143,12 @@ static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
return r;
}
+void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+
+void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+
+void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
+
#endif /* __POWERPC_KVM_PPC_H__ */
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 6887661ac072..36e1c8a29be8 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -396,6 +396,7 @@ int main(void)
DEFINE(VCPU_HOST_STACK, offsetof(struct kvm_vcpu, arch.host_stack));
DEFINE(VCPU_HOST_PID, offsetof(struct kvm_vcpu, arch.host_pid));
DEFINE(VCPU_GPRS, offsetof(struct kvm_vcpu, arch.gpr));
+ DEFINE(VCPU_VRSAVE, offsetof(struct kvm_vcpu, arch.vrsave));
DEFINE(VCPU_SPRG4, offsetof(struct kvm_vcpu, arch.sprg4));
DEFINE(VCPU_SPRG5, offsetof(struct kvm_vcpu, arch.sprg5));
DEFINE(VCPU_SPRG6, offsetof(struct kvm_vcpu, arch.sprg6));
diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c
index 74d0e7421143..da3a1225c0ac 100644
--- a/arch/powerpc/kvm/44x.c
+++ b/arch/powerpc/kvm/44x.c
@@ -107,6 +107,16 @@ int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
return 0;
}
+void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+{
+ kvmppc_get_sregs_ivor(vcpu, sregs);
+}
+
+int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+{
+ return kvmppc_set_sregs_ivor(vcpu, sregs);
+}
+
struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
{
struct kvmppc_vcpu_44x *vcpu_44x;
diff --git a/arch/powerpc/kvm/44x_emulate.c b/arch/powerpc/kvm/44x_emulate.c
index 65ea083a5b27..549bb2c9a47a 100644
--- a/arch/powerpc/kvm/44x_emulate.c
+++ b/arch/powerpc/kvm/44x_emulate.c
@@ -158,7 +158,6 @@ int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs);
}
- kvmppc_set_exit_type(vcpu, EMULATED_MTSPR_EXITS);
return emulated;
}
@@ -179,7 +178,6 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt);
}
- kvmppc_set_exit_type(vcpu, EMULATED_MFSPR_EXITS);
return emulated;
}
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index ef76acb455c3..8462b3a1c1c7 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -569,6 +569,7 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
kvmppc_set_msr(vcpu, regs->msr);
vcpu->arch.shared->srr0 = regs->srr0;
vcpu->arch.shared->srr1 = regs->srr1;
+ kvmppc_set_pid(vcpu, regs->pid);
vcpu->arch.shared->sprg0 = regs->sprg0;
vcpu->arch.shared->sprg1 = regs->sprg1;
vcpu->arch.shared->sprg2 = regs->sprg2;
@@ -584,16 +585,165 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
return 0;
}
+static void get_sregs_base(struct kvm_vcpu *vcpu,
+ struct kvm_sregs *sregs)
+{
+ u64 tb = get_tb();
+
+ sregs->u.e.features |= KVM_SREGS_E_BASE;
+
+ sregs->u.e.csrr0 = vcpu->arch.csrr0;
+ sregs->u.e.csrr1 = vcpu->arch.csrr1;
+ sregs->u.e.mcsr = vcpu->arch.mcsr;
+ sregs->u.e.esr = vcpu->arch.esr;
+ sregs->u.e.dear = vcpu->arch.shared->dar;
+ sregs->u.e.tsr = vcpu->arch.tsr;
+ sregs->u.e.tcr = vcpu->arch.tcr;
+ sregs->u.e.dec = kvmppc_get_dec(vcpu, tb);
+ sregs->u.e.tb = tb;
+ sregs->u.e.vrsave = vcpu->arch.vrsave;
+}
+
+static int set_sregs_base(struct kvm_vcpu *vcpu,
+ struct kvm_sregs *sregs)
+{
+ if (!(sregs->u.e.features & KVM_SREGS_E_BASE))
+ return 0;
+
+ vcpu->arch.csrr0 = sregs->u.e.csrr0;
+ vcpu->arch.csrr1 = sregs->u.e.csrr1;
+ vcpu->arch.mcsr = sregs->u.e.mcsr;
+ vcpu->arch.esr = sregs->u.e.esr;
+ vcpu->arch.shared->dar = sregs->u.e.dear;
+ vcpu->arch.vrsave = sregs->u.e.vrsave;
+ vcpu->arch.tcr = sregs->u.e.tcr;
+
+ if (sregs->u.e.update_special & KVM_SREGS_E_UPDATE_DEC)
+ vcpu->arch.dec = sregs->u.e.dec;
+
+ kvmppc_emulate_dec(vcpu);
+
+ if (sregs->u.e.update_special & KVM_SREGS_E_UPDATE_TSR) {
+ /*
+ * FIXME: existing KVM timer handling is incomplete.
+ * TSR cannot be read by the guest, and its value in
+ * vcpu->arch is always zero. For now, just handle
+ * the case where the caller is trying to inject a
+ * decrementer interrupt.
+ */
+
+ if ((sregs->u.e.tsr & TSR_DIS) &&
+ (vcpu->arch.tcr & TCR_DIE))
+ kvmppc_core_queue_dec(vcpu);
+ }
+
+ return 0;
+}
+
+static void get_sregs_arch206(struct kvm_vcpu *vcpu,
+ struct kvm_sregs *sregs)
+{
+ sregs->u.e.features |= KVM_SREGS_E_ARCH206;
+
+ sregs->u.e.pir = 0;
+ sregs->u.e.mcsrr0 = vcpu->arch.mcsrr0;
+ sregs->u.e.mcsrr1 = vcpu->arch.mcsrr1;
+ sregs->u.e.decar = vcpu->arch.decar;
+ sregs->u.e.ivpr = vcpu->arch.ivpr;
+}
+
+static int set_sregs_arch206(struct kvm_vcpu *vcpu,
+ struct kvm_sregs *sregs)
+{
+ if (!(sregs->u.e.features & KVM_SREGS_E_ARCH206))
+ return 0;
+
+ if (sregs->u.e.pir != 0)
+ return -EINVAL;
+
+ vcpu->arch.mcsrr0 = sregs->u.e.mcsrr0;
+ vcpu->arch.mcsrr1 = sregs->u.e.mcsrr1;
+ vcpu->arch.decar = sregs->u.e.decar;
+ vcpu->arch.ivpr = sregs->u.e.ivpr;
+
+ return 0;
+}
+
+void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+{
+ sregs->u.e.features |= KVM_SREGS_E_IVOR;
+
+ sregs->u.e.ivor_low[0] = vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL];
+ sregs->u.e.ivor_low[1] = vcpu->arch.ivor[BOOKE_IRQPRIO_MACHINE_CHECK];
+ sregs->u.e.ivor_low[2] = vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE];
+ sregs->u.e.ivor_low[3] = vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE];
+ sregs->u.e.ivor_low[4] = vcpu->arch.ivor[BOOKE_IRQPRIO_EXTERNAL];
+ sregs->u.e.ivor_low[5] = vcpu->arch.ivor[BOOKE_IRQPRIO_ALIGNMENT];
+ sregs->u.e.ivor_low[6] = vcpu->arch.ivor[BOOKE_IRQPRIO_PROGRAM];
+ sregs->u.e.ivor_low[7] = vcpu->arch.ivor[BOOKE_IRQPRIO_FP_UNAVAIL];
+ sregs->u.e.ivor_low[8] = vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL];
+ sregs->u.e.ivor_low[9] = vcpu->arch.ivor[BOOKE_IRQPRIO_AP_UNAVAIL];
+ sregs->u.e.ivor_low[10] = vcpu->arch.ivor[BOOKE_IRQPRIO_DECREMENTER];
+ sregs->u.e.ivor_low[11] = vcpu->arch.ivor[BOOKE_IRQPRIO_FIT];
+ sregs->u.e.ivor_low[12] = vcpu->arch.ivor[BOOKE_IRQPRIO_WATCHDOG];
+ sregs->u.e.ivor_low[13] = vcpu->arch.ivor[BOOKE_IRQPRIO_DTLB_MISS];
+ sregs->u.e.ivor_low[14] = vcpu->arch.ivor[BOOKE_IRQPRIO_ITLB_MISS];
+ sregs->u.e.ivor_low[15] = vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG];
+}
+
+int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+{
+ if (!(sregs->u.e.features & KVM_SREGS_E_IVOR))
+ return 0;
+
+ vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL] = sregs->u.e.ivor_low[0];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_MACHINE_CHECK] = sregs->u.e.ivor_low[1];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE] = sregs->u.e.ivor_low[2];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE] = sregs->u.e.ivor_low[3];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_EXTERNAL] = sregs->u.e.ivor_low[4];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_ALIGNMENT] = sregs->u.e.ivor_low[5];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_PROGRAM] = sregs->u.e.ivor_low[6];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_FP_UNAVAIL] = sregs->u.e.ivor_low[7];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL] = sregs->u.e.ivor_low[8];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_AP_UNAVAIL] = sregs->u.e.ivor_low[9];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_DECREMENTER] = sregs->u.e.ivor_low[10];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_FIT] = sregs->u.e.ivor_low[11];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_WATCHDOG] = sregs->u.e.ivor_low[12];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_DTLB_MISS] = sregs->u.e.ivor_low[13];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_ITLB_MISS] = sregs->u.e.ivor_low[14];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG] = sregs->u.e.ivor_low[15];
+
+ return 0;
+}
+
int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
struct kvm_sregs *sregs)
{
- return -ENOTSUPP;
+ sregs->pvr = vcpu->arch.pvr;
+
+ get_sregs_base(vcpu, sregs);
+ get_sregs_arch206(vcpu, sregs);
+ kvmppc_core_get_sregs(vcpu, sregs);
+ return 0;
}
int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
struct kvm_sregs *sregs)
{
- return -ENOTSUPP;
+ int ret;
+
+ if (vcpu->arch.pvr != sregs->pvr)
+ return -EINVAL;
+
+ ret = set_sregs_base(vcpu, sregs);
+ if (ret < 0)
+ return ret;
+
+ ret = set_sregs_arch206(vcpu, sregs);
+ if (ret < 0)
+ return ret;
+
+ return kvmppc_core_set_sregs(vcpu, sregs);
}
int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
diff --git a/arch/powerpc/kvm/booke_interrupts.S b/arch/powerpc/kvm/booke_interrupts.S
index 1cc471faac2d..b58ccae95904 100644
--- a/arch/powerpc/kvm/booke_interrupts.S
+++ b/arch/powerpc/kvm/booke_interrupts.S
@@ -380,7 +380,6 @@ lightweight_exit:
* because host interrupt handlers would get confused. */
lwz r1, VCPU_GPR(r1)(r4)
- /* XXX handle USPRG0 */
/* Host interrupt handlers may have clobbered these guest-readable
* SPRGs, so we need to reload them here with the guest's values. */
lwz r3, VCPU_SPRG4(r4)
diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c
index e3768ee9b595..318dbc61ba44 100644
--- a/arch/powerpc/kvm/e500.c
+++ b/arch/powerpc/kvm/e500.c
@@ -63,6 +63,7 @@ int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
/* Registers init */
vcpu->arch.pvr = mfspr(SPRN_PVR);
+ vcpu_e500->svr = mfspr(SPRN_SVR);
/* Since booke kvm only support one core, update all vcpus' PIR to 0 */
vcpu->vcpu_id = 0;
@@ -96,6 +97,81 @@ int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
return 0;
}
+void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+
+ sregs->u.e.features |= KVM_SREGS_E_ARCH206_MMU | KVM_SREGS_E_SPE |
+ KVM_SREGS_E_PM;
+ sregs->u.e.impl_id = KVM_SREGS_E_IMPL_FSL;
+
+ sregs->u.e.impl.fsl.features = 0;
+ sregs->u.e.impl.fsl.svr = vcpu_e500->svr;
+ sregs->u.e.impl.fsl.hid0 = vcpu_e500->hid0;
+ sregs->u.e.impl.fsl.mcar = vcpu_e500->mcar;
+
+ sregs->u.e.mas0 = vcpu_e500->mas0;
+ sregs->u.e.mas1 = vcpu_e500->mas1;
+ sregs->u.e.mas2 = vcpu_e500->mas2;
+ sregs->u.e.mas7_3 = ((u64)vcpu_e500->mas7 << 32) | vcpu_e500->mas3;
+ sregs->u.e.mas4 = vcpu_e500->mas4;
+ sregs->u.e.mas6 = vcpu_e500->mas6;
+
+ sregs->u.e.mmucfg = mfspr(SPRN_MMUCFG);
+ sregs->u.e.tlbcfg[0] = vcpu_e500->tlb0cfg;
+ sregs->u.e.tlbcfg[1] = vcpu_e500->tlb1cfg;
+ sregs->u.e.tlbcfg[2] = 0;
+ sregs->u.e.tlbcfg[3] = 0;
+
+ sregs->u.e.ivor_high[0] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL];
+ sregs->u.e.ivor_high[1] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA];
+ sregs->u.e.ivor_high[2] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND];
+ sregs->u.e.ivor_high[3] =
+ vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR];
+
+ kvmppc_get_sregs_ivor(vcpu, sregs);
+}
+
+int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+
+ if (sregs->u.e.impl_id == KVM_SREGS_E_IMPL_FSL) {
+ vcpu_e500->svr = sregs->u.e.impl.fsl.svr;
+ vcpu_e500->hid0 = sregs->u.e.impl.fsl.hid0;
+ vcpu_e500->mcar = sregs->u.e.impl.fsl.mcar;
+ }
+
+ if (sregs->u.e.features & KVM_SREGS_E_ARCH206_MMU) {
+ vcpu_e500->mas0 = sregs->u.e.mas0;
+ vcpu_e500->mas1 = sregs->u.e.mas1;
+ vcpu_e500->mas2 = sregs->u.e.mas2;
+ vcpu_e500->mas7 = sregs->u.e.mas7_3 >> 32;
+ vcpu_e500->mas3 = (u32)sregs->u.e.mas7_3;
+ vcpu_e500->mas4 = sregs->u.e.mas4;
+ vcpu_e500->mas6 = sregs->u.e.mas6;
+ }
+
+ if (!(sregs->u.e.features & KVM_SREGS_E_IVOR))
+ return 0;
+
+ if (sregs->u.e.features & KVM_SREGS_E_SPE) {
+ vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] =
+ sregs->u.e.ivor_high[0];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] =
+ sregs->u.e.ivor_high[1];
+ vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] =
+ sregs->u.e.ivor_high[2];
+ }
+
+ if (sregs->u.e.features & KVM_SREGS_E_PM) {
+ vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] =
+ sregs->u.e.ivor_high[3];
+ }
+
+ return kvmppc_set_sregs_ivor(vcpu, sregs);
+}
+
struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
{
struct kvmppc_vcpu_e500 *vcpu_e500;
diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
index 8e3edfbc9634..69cd665a0caf 100644
--- a/arch/powerpc/kvm/e500_emulate.c
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
+ * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
*
* Author: Yu Liu, <yu.liu@freescale.com>
*
@@ -78,8 +78,7 @@ int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
switch (sprn) {
case SPRN_PID:
- vcpu_e500->pid[0] = vcpu->arch.shadow_pid =
- vcpu->arch.pid = spr_val;
+ kvmppc_set_pid(vcpu, spr_val);
break;
case SPRN_PID1:
vcpu_e500->pid[1] = spr_val; break;
@@ -175,6 +174,8 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid0); break;
case SPRN_HID1:
kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid1); break;
+ case SPRN_SVR:
+ kvmppc_set_gpr(vcpu, rt, vcpu_e500->svr); break;
case SPRN_MMUCSR0:
kvmppc_set_gpr(vcpu, rt, 0); break;
diff --git a/arch/powerpc/kvm/e500_tlb.c b/arch/powerpc/kvm/e500_tlb.c
index d6d6d47a75a9..b18fe353397d 100644
--- a/arch/powerpc/kvm/e500_tlb.c
+++ b/arch/powerpc/kvm/e500_tlb.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
+ * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
*
* Author: Yu Liu, yu.liu@freescale.com
*
@@ -24,6 +24,7 @@
#include "../mm/mmu_decl.h"
#include "e500_tlb.h"
#include "trace.h"
+#include "timing.h"
#define to_htlb1_esel(esel) (tlb1_entry_num - (esel) - 1)
@@ -506,6 +507,7 @@ int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, int rb)
vcpu_e500->mas7 = 0;
}
+ kvmppc_set_exit_type(vcpu, EMULATED_TLBSX_EXITS);
return EMULATE_DONE;
}
@@ -571,6 +573,7 @@ int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu)
write_host_tlbe(vcpu_e500, stlbsel, sesel);
}
+ kvmppc_set_exit_type(vcpu, EMULATED_TLBWE_EXITS);
return EMULATE_DONE;
}
@@ -672,6 +675,14 @@ int kvmppc_e500_tlb_search(struct kvm_vcpu *vcpu,
return -1;
}
+void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+
+ vcpu_e500->pid[0] = vcpu->arch.shadow_pid =
+ vcpu->arch.pid = pid;
+}
+
void kvmppc_e500_tlb_setup(struct kvmppc_vcpu_e500 *vcpu_e500)
{
struct tlbe *tlbe;
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index c64fd2909bb2..141dce3c6810 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -114,6 +114,12 @@ void kvmppc_emulate_dec(struct kvm_vcpu *vcpu)
}
}
+u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb)
+{
+ u64 jd = tb - vcpu->arch.dec_jiffies;
+ return vcpu->arch.dec - jd;
+}
+
/* XXX to do:
* lhax
* lhaux
@@ -279,11 +285,8 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
case SPRN_DEC:
{
- u64 jd = get_tb() - vcpu->arch.dec_jiffies;
- kvmppc_set_gpr(vcpu, rt, vcpu->arch.dec - jd);
- pr_debug("mfDEC: %x - %llx = %lx\n",
- vcpu->arch.dec, jd,
- kvmppc_get_gpr(vcpu, rt));
+ kvmppc_set_gpr(vcpu, rt,
+ kvmppc_get_dec(vcpu, get_tb()));
break;
}
default:
@@ -294,6 +297,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
}
break;
}
+ kvmppc_set_exit_type(vcpu, EMULATED_MFSPR_EXITS);
break;
case OP_31_XOP_STHX:
@@ -363,6 +367,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
printk("mtspr: unknown spr %x\n", sprn);
break;
}
+ kvmppc_set_exit_type(vcpu, EMULATED_MTSPR_EXITS);
break;
case OP_31_XOP_DCBI:
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 99758460efde..616dd516ca1f 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -175,7 +175,11 @@ int kvm_dev_ioctl_check_extension(long ext)
int r;
switch (ext) {
+#ifdef CONFIG_BOOKE
+ case KVM_CAP_PPC_BOOKE_SREGS:
+#else
case KVM_CAP_PPC_SEGSTATE:
+#endif
case KVM_CAP_PPC_PAIRED_SINGLES:
case KVM_CAP_PPC_UNSET_IRQ:
case KVM_CAP_PPC_IRQ_LEVEL:
@@ -284,6 +288,10 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
tasklet_init(&vcpu->arch.tasklet, kvmppc_decrementer_func, (ulong)vcpu);
vcpu->arch.dec_timer.function = kvmppc_decrementer_wakeup;
+#ifdef CONFIG_KVM_EXIT_TIMING
+ mutex_init(&vcpu->arch.exit_timing_lock);
+#endif
+
return 0;
}
@@ -294,12 +302,25 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
+#ifdef CONFIG_BOOKE
+ /*
+ * vrsave (formerly usprg0) isn't used by Linux, but may
+ * be used by the guest.
+ *
+ * On non-booke this is associated with Altivec and
+ * is handled by code in book3s.c.
+ */
+ mtspr(SPRN_VRSAVE, vcpu->arch.vrsave);
+#endif
kvmppc_core_vcpu_load(vcpu, cpu);
}
void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
{
kvmppc_core_vcpu_put(vcpu);
+#ifdef CONFIG_BOOKE
+ vcpu->arch.vrsave = mfspr(SPRN_VRSAVE);
+#endif
}
int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
diff --git a/arch/powerpc/kvm/timing.c b/arch/powerpc/kvm/timing.c
index a021f5827a33..319177df9587 100644
--- a/arch/powerpc/kvm/timing.c
+++ b/arch/powerpc/kvm/timing.c
@@ -34,8 +34,8 @@ void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu)
{
int i;
- /* pause guest execution to avoid concurrent updates */
- mutex_lock(&vcpu->mutex);
+ /* Take a lock to avoid concurrent updates */
+ mutex_lock(&vcpu->arch.exit_timing_lock);
vcpu->arch.last_exit_type = 0xDEAD;
for (i = 0; i < __NUMBER_OF_KVM_EXIT_TYPES; i++) {
@@ -49,7 +49,7 @@ void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu)
vcpu->arch.timing_exit.tv64 = 0;
vcpu->arch.timing_last_enter.tv64 = 0;
- mutex_unlock(&vcpu->mutex);
+ mutex_unlock(&vcpu->arch.exit_timing_lock);
}
static void add_exit_timing(struct kvm_vcpu *vcpu, u64 duration, int type)
@@ -65,6 +65,8 @@ static void add_exit_timing(struct kvm_vcpu *vcpu, u64 duration, int type)
return;
}
+ mutex_lock(&vcpu->arch.exit_timing_lock);
+
vcpu->arch.timing_count_type[type]++;
/* sum */
@@ -93,6 +95,8 @@ static void add_exit_timing(struct kvm_vcpu *vcpu, u64 duration, int type)
vcpu->arch.timing_min_duration[type] = duration;
if (unlikely(duration > vcpu->arch.timing_max_duration[type]))
vcpu->arch.timing_max_duration[type] = duration;
+
+ mutex_unlock(&vcpu->arch.exit_timing_lock);
}
void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu)
@@ -147,17 +151,30 @@ static int kvmppc_exit_timing_show(struct seq_file *m, void *private)
{
struct kvm_vcpu *vcpu = m->private;
int i;
+ u64 min, max, sum, sum_quad;
seq_printf(m, "%s", "type count min max sum sum_squared\n");
+
for (i = 0; i < __NUMBER_OF_KVM_EXIT_TYPES; i++) {
+
+ min = vcpu->arch.timing_min_duration[i];
+ do_div(min, tb_ticks_per_usec);
+ max = vcpu->arch.timing_max_duration[i];
+ do_div(max, tb_ticks_per_usec);
+ sum = vcpu->arch.timing_sum_duration[i];
+ do_div(sum, tb_ticks_per_usec);
+ sum_quad = vcpu->arch.timing_sum_quad_duration[i];
+ do_div(sum_quad, tb_ticks_per_usec);
+
seq_printf(m, "%12s %10d %10lld %10lld %20lld %20lld\n",
kvm_exit_names[i],
vcpu->arch.timing_count_type[i],
- vcpu->arch.timing_min_duration[i],
- vcpu->arch.timing_max_duration[i],
- vcpu->arch.timing_sum_duration[i],
- vcpu->arch.timing_sum_quad_duration[i]);
+ min,
+ max,
+ sum,
+ sum_quad);
+
}
return 0;
}
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-21 08:46:49 +0000