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Subject[PATCH 41/45] KVM: ppc: Refactor powerpc.c to relocate 440-specific code
Date
From: Hollis Blanchard <hollisb@us.ibm.com>

This introduces a set of core-provided hooks. For 440, some of these are
implemented by booke.c, with the rest in (the new) 44x.c.

Note that these hooks are link-time, not run-time. Since it is not possible to
build a single kernel for both e500 and 440 (for example), using function
pointers would only add overhead.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
arch/powerpc/include/asm/kvm_host.h | 3 +
arch/powerpc/include/asm/kvm_ppc.h | 34 +++++-----
arch/powerpc/kvm/44x.c | 123 +++++++++++++++++++++++++++++++++++
arch/powerpc/kvm/44x_tlb.h | 1 +
arch/powerpc/kvm/Kconfig | 11 +--
arch/powerpc/kvm/Makefile | 4 +-
arch/powerpc/kvm/booke.c | 61 +++++++++++++----
arch/powerpc/kvm/emulate.c | 2 +-
arch/powerpc/kvm/powerpc.c | 103 +++--------------------------
9 files changed, 207 insertions(+), 135 deletions(-)
create mode 100644 arch/powerpc/kvm/44x.c
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index df73351..f5850d7 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -74,6 +74,9 @@ struct kvmppc_44x_tlbe {
struct kvm_arch {
};

+/* XXX Can't include mmu-44x.h because it redefines struct mm_context. */
+#define PPC44x_TLB_SIZE 64
+
struct kvm_vcpu_arch {
/* Unmodified copy of the guest's TLB. */
struct kvmppc_44x_tlbe guest_tlb[PPC44x_TLB_SIZE];
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index 39daeaa..96d5de9 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -61,23 +61,6 @@ extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gfn_t gfn,
extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);

-/* XXX Book E specific */
-extern void kvmppc_tlbe_set_modified(struct kvm_vcpu *vcpu, unsigned int i);
-
-extern void kvmppc_check_and_deliver_interrupts(struct kvm_vcpu *vcpu);
-
-static inline void kvmppc_queue_exception(struct kvm_vcpu *vcpu, int exception)
-{
- unsigned int priority = exception_priority[exception];
- set_bit(priority, &vcpu->arch.pending_exceptions);
-}
-
-static inline void kvmppc_clear_exception(struct kvm_vcpu *vcpu, int exception)
-{
- unsigned int priority = exception_priority[exception];
- clear_bit(priority, &vcpu->arch.pending_exceptions);
-}
-
/* Helper function for "full" MSR writes. No need to call this if only EE is
* changing. */
static inline void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr)
@@ -99,6 +82,23 @@ static inline void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 new_pid)
}
}

+/* Core-specific hooks */
+
+extern int kvmppc_core_check_processor_compat(void);
+
+extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
+extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
+
+extern void kvmppc_core_load_guest_debugstate(struct kvm_vcpu *vcpu);
+extern void kvmppc_core_load_host_debugstate(struct kvm_vcpu *vcpu);
+
+extern void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu);
+extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
+extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu);
+extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
+extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
+ struct kvm_interrupt *irq);
+
extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);

#endif /* __POWERPC_KVM_PPC_H__ */
diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c
new file mode 100644
index 0000000..fcf8c7d
--- /dev/null
+++ b/arch/powerpc/kvm/44x.c
@@ -0,0 +1,123 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * Authors: Hollis Blanchard <hollisb@us.ibm.com>
+ */
+
+#include <linux/kvm_host.h>
+#include <asm/reg.h>
+#include <asm/cputable.h>
+#include <asm/tlbflush.h>
+
+#include "44x_tlb.h"
+
+/* Note: clearing MSR[DE] just means that the debug interrupt will not be
+ * delivered *immediately*. Instead, it simply sets the appropriate DBSR bits.
+ * If those DBSR bits are still set when MSR[DE] is re-enabled, the interrupt
+ * will be delivered as an "imprecise debug event" (which is indicated by
+ * DBSR[IDE].
+ */
+static void kvm44x_disable_debug_interrupts(void)
+{
+ mtmsr(mfmsr() & ~MSR_DE);
+}
+
+void kvmppc_core_load_host_debugstate(struct kvm_vcpu *vcpu)
+{
+ kvm44x_disable_debug_interrupts();
+
+ mtspr(SPRN_IAC1, vcpu->arch.host_iac[0]);
+ mtspr(SPRN_IAC2, vcpu->arch.host_iac[1]);
+ mtspr(SPRN_IAC3, vcpu->arch.host_iac[2]);
+ mtspr(SPRN_IAC4, vcpu->arch.host_iac[3]);
+ mtspr(SPRN_DBCR1, vcpu->arch.host_dbcr1);
+ mtspr(SPRN_DBCR2, vcpu->arch.host_dbcr2);
+ mtspr(SPRN_DBCR0, vcpu->arch.host_dbcr0);
+ mtmsr(vcpu->arch.host_msr);
+}
+
+void kvmppc_core_load_guest_debugstate(struct kvm_vcpu *vcpu)
+{
+ struct kvm_guest_debug *dbg = &vcpu->guest_debug;
+ u32 dbcr0 = 0;
+
+ vcpu->arch.host_msr = mfmsr();
+ kvm44x_disable_debug_interrupts();
+
+ /* Save host debug register state. */
+ vcpu->arch.host_iac[0] = mfspr(SPRN_IAC1);
+ vcpu->arch.host_iac[1] = mfspr(SPRN_IAC2);
+ vcpu->arch.host_iac[2] = mfspr(SPRN_IAC3);
+ vcpu->arch.host_iac[3] = mfspr(SPRN_IAC4);
+ vcpu->arch.host_dbcr0 = mfspr(SPRN_DBCR0);
+ vcpu->arch.host_dbcr1 = mfspr(SPRN_DBCR1);
+ vcpu->arch.host_dbcr2 = mfspr(SPRN_DBCR2);
+
+ /* set registers up for guest */
+
+ if (dbg->bp[0]) {
+ mtspr(SPRN_IAC1, dbg->bp[0]);
+ dbcr0 |= DBCR0_IAC1 | DBCR0_IDM;
+ }
+ if (dbg->bp[1]) {
+ mtspr(SPRN_IAC2, dbg->bp[1]);
+ dbcr0 |= DBCR0_IAC2 | DBCR0_IDM;
+ }
+ if (dbg->bp[2]) {
+ mtspr(SPRN_IAC3, dbg->bp[2]);
+ dbcr0 |= DBCR0_IAC3 | DBCR0_IDM;
+ }
+ if (dbg->bp[3]) {
+ mtspr(SPRN_IAC4, dbg->bp[3]);
+ dbcr0 |= DBCR0_IAC4 | DBCR0_IDM;
+ }
+
+ mtspr(SPRN_DBCR0, dbcr0);
+ mtspr(SPRN_DBCR1, 0);
+ mtspr(SPRN_DBCR2, 0);
+}
+
+void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+{
+ int i;
+
+ /* Mark every guest entry in the shadow TLB entry modified, so that they
+ * will all be reloaded on the next vcpu run (instead of being
+ * demand-faulted). */
+ for (i = 0; i <= tlb_44x_hwater; i++)
+ kvmppc_tlbe_set_modified(vcpu, i);
+}
+
+void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
+{
+ /* Don't leave guest TLB entries resident when being de-scheduled. */
+ /* XXX It would be nice to differentiate between heavyweight exit and
+ * sched_out here, since we could avoid the TLB flush for heavyweight
+ * exits. */
+ _tlbia();
+}
+
+int kvmppc_core_check_processor_compat(void)
+{
+ int r;
+
+ if (strcmp(cur_cpu_spec->platform, "ppc440") == 0)
+ r = 0;
+ else
+ r = -ENOTSUPP;
+
+ return r;
+}
diff --git a/arch/powerpc/kvm/44x_tlb.h b/arch/powerpc/kvm/44x_tlb.h
index e5b0a76..357d79a 100644
--- a/arch/powerpc/kvm/44x_tlb.h
+++ b/arch/powerpc/kvm/44x_tlb.h
@@ -29,6 +29,7 @@ extern struct kvmppc_44x_tlbe *kvmppc_44x_dtlb_search(struct kvm_vcpu *vcpu,
gva_t eaddr);
extern struct kvmppc_44x_tlbe *kvmppc_44x_itlb_search(struct kvm_vcpu *vcpu,
gva_t eaddr);
+extern void kvmppc_tlbe_set_modified(struct kvm_vcpu *vcpu, unsigned int i);

/* TLB helper functions */
static inline unsigned int get_tlb_size(const struct kvmppc_44x_tlbe *tlbe)
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index ffed96f..37e9b3c 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -16,11 +16,9 @@ if VIRTUALIZATION

config KVM
bool "Kernel-based Virtual Machine (KVM) support"
- depends on 44x && EXPERIMENTAL
+ depends on EXPERIMENTAL
select PREEMPT_NOTIFIERS
select ANON_INODES
- # We can only run on Book E hosts so far
- select KVM_BOOKE
---help---
Support hosting virtualized guest machines. You will also
need to select one or more of the processor modules below.
@@ -30,12 +28,11 @@ config KVM

If unsure, say N.

-config KVM_BOOKE
- bool "KVM support for Book E PowerPC processors"
+config KVM_440
+ bool "KVM support for PowerPC 440 processors"
depends on KVM && 44x
---help---
- Provides host support for KVM on Book E PowerPC processors. Currently
- this works on 440 processors only.
+ KVM can run unmodified 440 guest kernels on 440 host processors.

config KVM_TRACE
bool "KVM trace support"
diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile
index a7f8574..f5e3375 100644
--- a/arch/powerpc/kvm/Makefile
+++ b/arch/powerpc/kvm/Makefile
@@ -13,5 +13,5 @@ obj-$(CONFIG_KVM) += kvm.o

AFLAGS_booke_interrupts.o := -I$(obj)

-kvm-booke-objs := booke.o booke_interrupts.o 44x_tlb.o
-obj-$(CONFIG_KVM_BOOKE) += kvm-booke.o
+kvm-440-objs := booke.o booke_interrupts.o 44x.o 44x_tlb.o
+obj-$(CONFIG_KVM_440) += kvm-440.o
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index b1e90a1..138014a 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -134,6 +134,40 @@ void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu)
}
}

+static void kvmppc_booke_queue_exception(struct kvm_vcpu *vcpu, int exception)
+{
+ unsigned int priority = exception_priority[exception];
+ set_bit(priority, &vcpu->arch.pending_exceptions);
+}
+
+static void kvmppc_booke_clear_exception(struct kvm_vcpu *vcpu, int exception)
+{
+ unsigned int priority = exception_priority[exception];
+ clear_bit(priority, &vcpu->arch.pending_exceptions);
+}
+
+void kvmppc_core_queue_program(struct kvm_vcpu *vcpu)
+{
+ kvmppc_booke_queue_exception(vcpu, BOOKE_INTERRUPT_PROGRAM);
+}
+
+void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu)
+{
+ kvmppc_booke_queue_exception(vcpu, BOOKE_INTERRUPT_DECREMENTER);
+}
+
+int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu)
+{
+ unsigned int priority = exception_priority[BOOKE_INTERRUPT_DECREMENTER];
+ return test_bit(priority, &vcpu->arch.pending_exceptions);
+}
+
+void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
+ struct kvm_interrupt *irq)
+{
+ kvmppc_booke_queue_exception(vcpu, BOOKE_INTERRUPT_EXTERNAL);
+}
+
/* Check if we are ready to deliver the interrupt */
static int kvmppc_can_deliver_interrupt(struct kvm_vcpu *vcpu, int interrupt)
{
@@ -168,7 +202,7 @@ static int kvmppc_can_deliver_interrupt(struct kvm_vcpu *vcpu, int interrupt)
return r;
}

-static void kvmppc_deliver_interrupt(struct kvm_vcpu *vcpu, int interrupt)
+static void kvmppc_booke_deliver_interrupt(struct kvm_vcpu *vcpu, int interrupt)
{
switch (interrupt) {
case BOOKE_INTERRUPT_DECREMENTER:
@@ -183,7 +217,7 @@ static void kvmppc_deliver_interrupt(struct kvm_vcpu *vcpu, int interrupt)
}

/* Check pending exceptions and deliver one, if possible. */
-void kvmppc_check_and_deliver_interrupts(struct kvm_vcpu *vcpu)
+void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu)
{
unsigned long *pending = &vcpu->arch.pending_exceptions;
unsigned int exception;
@@ -193,8 +227,8 @@ void kvmppc_check_and_deliver_interrupts(struct kvm_vcpu *vcpu)
while (priority <= BOOKE_MAX_INTERRUPT) {
exception = priority_exception[priority];
if (kvmppc_can_deliver_interrupt(vcpu, exception)) {
- kvmppc_clear_exception(vcpu, exception);
- kvmppc_deliver_interrupt(vcpu, exception);
+ kvmppc_booke_clear_exception(vcpu, exception);
+ kvmppc_booke_deliver_interrupt(vcpu, exception);
break;
}

@@ -251,7 +285,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
/* Program traps generated by user-level software must be handled
* by the guest kernel. */
vcpu->arch.esr = vcpu->arch.fault_esr;
- kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_PROGRAM);
+ kvmppc_booke_queue_exception(vcpu, BOOKE_INTERRUPT_PROGRAM);
r = RESUME_GUEST;
break;
}
@@ -284,27 +318,27 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
break;

case BOOKE_INTERRUPT_FP_UNAVAIL:
- kvmppc_queue_exception(vcpu, exit_nr);
+ kvmppc_booke_queue_exception(vcpu, exit_nr);
r = RESUME_GUEST;
break;

case BOOKE_INTERRUPT_DATA_STORAGE:
vcpu->arch.dear = vcpu->arch.fault_dear;
vcpu->arch.esr = vcpu->arch.fault_esr;
- kvmppc_queue_exception(vcpu, exit_nr);
+ kvmppc_booke_queue_exception(vcpu, exit_nr);
vcpu->stat.dsi_exits++;
r = RESUME_GUEST;
break;

case BOOKE_INTERRUPT_INST_STORAGE:
vcpu->arch.esr = vcpu->arch.fault_esr;
- kvmppc_queue_exception(vcpu, exit_nr);
+ kvmppc_booke_queue_exception(vcpu, exit_nr);
vcpu->stat.isi_exits++;
r = RESUME_GUEST;
break;

case BOOKE_INTERRUPT_SYSCALL:
- kvmppc_queue_exception(vcpu, exit_nr);
+ kvmppc_booke_queue_exception(vcpu, exit_nr);
vcpu->stat.syscall_exits++;
r = RESUME_GUEST;
break;
@@ -318,7 +352,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
gtlbe = kvmppc_44x_dtlb_search(vcpu, eaddr);
if (!gtlbe) {
/* The guest didn't have a mapping for it. */
- kvmppc_queue_exception(vcpu, exit_nr);
+ kvmppc_booke_queue_exception(vcpu, exit_nr);
vcpu->arch.dear = vcpu->arch.fault_dear;
vcpu->arch.esr = vcpu->arch.fault_esr;
vcpu->stat.dtlb_real_miss_exits++;
@@ -360,7 +394,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
gtlbe = kvmppc_44x_itlb_search(vcpu, eaddr);
if (!gtlbe) {
/* The guest didn't have a mapping for it. */
- kvmppc_queue_exception(vcpu, exit_nr);
+ kvmppc_booke_queue_exception(vcpu, exit_nr);
vcpu->stat.itlb_real_miss_exits++;
break;
}
@@ -380,8 +414,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
gtlbe->word2);
} else {
/* Guest mapped and leaped at non-RAM! */
- kvmppc_queue_exception(vcpu,
- BOOKE_INTERRUPT_MACHINE_CHECK);
+ kvmppc_booke_queue_exception(vcpu, BOOKE_INTERRUPT_MACHINE_CHECK);
}

break;
@@ -409,7 +442,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,

local_irq_disable();

- kvmppc_check_and_deliver_interrupts(vcpu);
+ kvmppc_core_deliver_interrupts(vcpu);

/* Do some exit accounting. */
vcpu->stat.sum_exits++;
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 0ce8ed5..c5d2bfc 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -139,7 +139,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
switch (get_op(inst)) {
case 3: /* trap */
printk("trap!\n");
- kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_PROGRAM);
+ kvmppc_core_queue_program(vcpu);
advance = 0;
break;

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index fda9baa..800fe97 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -98,14 +98,7 @@ void kvm_arch_hardware_unsetup(void)

void kvm_arch_check_processor_compat(void *rtn)
{
- int r;
-
- if (strcmp(cur_cpu_spec->platform, "ppc440") == 0)
- r = 0;
- else
- r = -ENOTSUPP;
-
- *(int *)rtn = r;
+ *(int *)rtn = kvmppc_core_check_processor_compat();
}

struct kvm *kvm_arch_create_vm(void)
@@ -211,16 +204,14 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)

int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
{
- unsigned int priority = exception_priority[BOOKE_INTERRUPT_DECREMENTER];
-
- return test_bit(priority, &vcpu->arch.pending_exceptions);
+ return kvmppc_core_pending_dec(vcpu);
}

static void kvmppc_decrementer_func(unsigned long data)
{
struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data;

- kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_DECREMENTER);
+ kvmppc_core_queue_dec(vcpu);

if (waitqueue_active(&vcpu->wq)) {
wake_up_interruptible(&vcpu->wq);
@@ -241,96 +232,20 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
kvmppc_core_destroy_mmu(vcpu);
}

-/* Note: clearing MSR[DE] just means that the debug interrupt will not be
- * delivered *immediately*. Instead, it simply sets the appropriate DBSR bits.
- * If those DBSR bits are still set when MSR[DE] is re-enabled, the interrupt
- * will be delivered as an "imprecise debug event" (which is indicated by
- * DBSR[IDE].
- */
-static void kvmppc_disable_debug_interrupts(void)
-{
- mtmsr(mfmsr() & ~MSR_DE);
-}
-
-static void kvmppc_restore_host_debug_state(struct kvm_vcpu *vcpu)
-{
- kvmppc_disable_debug_interrupts();
-
- mtspr(SPRN_IAC1, vcpu->arch.host_iac[0]);
- mtspr(SPRN_IAC2, vcpu->arch.host_iac[1]);
- mtspr(SPRN_IAC3, vcpu->arch.host_iac[2]);
- mtspr(SPRN_IAC4, vcpu->arch.host_iac[3]);
- mtspr(SPRN_DBCR1, vcpu->arch.host_dbcr1);
- mtspr(SPRN_DBCR2, vcpu->arch.host_dbcr2);
- mtspr(SPRN_DBCR0, vcpu->arch.host_dbcr0);
- mtmsr(vcpu->arch.host_msr);
-}
-
-static void kvmppc_load_guest_debug_registers(struct kvm_vcpu *vcpu)
-{
- struct kvm_guest_debug *dbg = &vcpu->guest_debug;
- u32 dbcr0 = 0;
-
- vcpu->arch.host_msr = mfmsr();
- kvmppc_disable_debug_interrupts();
-
- /* Save host debug register state. */
- vcpu->arch.host_iac[0] = mfspr(SPRN_IAC1);
- vcpu->arch.host_iac[1] = mfspr(SPRN_IAC2);
- vcpu->arch.host_iac[2] = mfspr(SPRN_IAC3);
- vcpu->arch.host_iac[3] = mfspr(SPRN_IAC4);
- vcpu->arch.host_dbcr0 = mfspr(SPRN_DBCR0);
- vcpu->arch.host_dbcr1 = mfspr(SPRN_DBCR1);
- vcpu->arch.host_dbcr2 = mfspr(SPRN_DBCR2);
-
- /* set registers up for guest */
-
- if (dbg->bp[0]) {
- mtspr(SPRN_IAC1, dbg->bp[0]);
- dbcr0 |= DBCR0_IAC1 | DBCR0_IDM;
- }
- if (dbg->bp[1]) {
- mtspr(SPRN_IAC2, dbg->bp[1]);
- dbcr0 |= DBCR0_IAC2 | DBCR0_IDM;
- }
- if (dbg->bp[2]) {
- mtspr(SPRN_IAC3, dbg->bp[2]);
- dbcr0 |= DBCR0_IAC3 | DBCR0_IDM;
- }
- if (dbg->bp[3]) {
- mtspr(SPRN_IAC4, dbg->bp[3]);
- dbcr0 |= DBCR0_IAC4 | DBCR0_IDM;
- }
-
- mtspr(SPRN_DBCR0, dbcr0);
- mtspr(SPRN_DBCR1, 0);
- mtspr(SPRN_DBCR2, 0);
-}
-
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
- int i;
-
if (vcpu->guest_debug.enabled)
- kvmppc_load_guest_debug_registers(vcpu);
+ kvmppc_core_load_guest_debugstate(vcpu);

- /* Mark every guest entry in the shadow TLB entry modified, so that they
- * will all be reloaded on the next vcpu run (instead of being
- * demand-faulted). */
- for (i = 0; i <= tlb_44x_hwater; i++)
- kvmppc_tlbe_set_modified(vcpu, i);
+ kvmppc_core_vcpu_load(vcpu, cpu);
}

void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
{
if (vcpu->guest_debug.enabled)
- kvmppc_restore_host_debug_state(vcpu);
+ kvmppc_core_load_host_debugstate(vcpu);

- /* Don't leave guest TLB entries resident when being de-scheduled. */
- /* XXX It would be nice to differentiate between heavyweight exit and
- * sched_out here, since we could avoid the TLB flush for heavyweight
- * exits. */
- _tlbia();
+ kvmppc_core_vcpu_put(vcpu);
}

int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
@@ -459,7 +374,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
vcpu->arch.dcr_needed = 0;
}

- kvmppc_check_and_deliver_interrupts(vcpu);
+ kvmppc_core_deliver_interrupts(vcpu);

local_irq_disable();
kvm_guest_enter();
@@ -477,7 +392,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)

int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq)
{
- kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_EXTERNAL);
+ kvmppc_core_queue_external(vcpu, irq);

if (waitqueue_active(&vcpu->wq)) {
wake_up_interruptible(&vcpu->wq);
--
1.6.0.3


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  Last update: 2008-12-08 12:45    [from the cache]
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