#include <asm/kvm_ppc.h>
#include <asm/cacheflush.h>
+#include "booke.h"
#include "44x_tlb.h"
unsigned long kvmppc_booke_handlers;
}
}
+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)
{
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:
}
/* 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;
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;
}
/* 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;
}
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;
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++;
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;
}
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;
local_irq_disable();
- kvmppc_check_and_deliver_interrupts(vcpu);
+ kvmppc_core_deliver_interrupts(vcpu);
/* Do some exit accounting. */
vcpu->stat.sum_exits++;
/* Initial guest state: 16MB mapping 0 -> 0, PC = 0, MSR = 0, R1 = 16MB */
int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
{
- struct kvmppc_44x_tlbe *tlbe = &vcpu->arch.guest_tlb[0];
-
- tlbe->tid = 0;
- tlbe->word0 = PPC44x_TLB_16M | PPC44x_TLB_VALID;
- tlbe->word1 = 0;
- tlbe->word2 = PPC44x_TLB_SX | PPC44x_TLB_SW | PPC44x_TLB_SR;
-
- tlbe++;
- tlbe->tid = 0;
- tlbe->word0 = 0xef600000 | PPC44x_TLB_4K | PPC44x_TLB_VALID;
- tlbe->word1 = 0xef600000;
- tlbe->word2 = PPC44x_TLB_SX | PPC44x_TLB_SW | PPC44x_TLB_SR
- | PPC44x_TLB_I | PPC44x_TLB_G;
-
vcpu->arch.pc = 0;
vcpu->arch.msr = 0;
vcpu->arch.gpr[1] = (16<<20) - 8; /* -8 for the callee-save LR slot */
* before it's programmed its own IVPR. */
vcpu->arch.ivpr = 0x55550000;
- /* Since the guest can directly access the timebase, it must know the
- * real timebase frequency. Accordingly, it must see the state of
- * CCR1[TCS]. */
- vcpu->arch.ccr1 = mfspr(SPRN_CCR1);
-
- return 0;
+ return kvmppc_core_vcpu_setup(vcpu);
}
int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
return -ENOTSUPP;
}
-/* 'linear_address' is actually an encoding of AS|PID|EADDR . */
int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
struct kvm_translation *tr)
{
- struct kvmppc_44x_tlbe *gtlbe;
- int index;
- gva_t eaddr;
- u8 pid;
- u8 as;
-
- eaddr = tr->linear_address;
- pid = (tr->linear_address >> 32) & 0xff;
- as = (tr->linear_address >> 40) & 0x1;
-
- index = kvmppc_44x_tlb_index(vcpu, eaddr, pid, as);
- if (index == -1) {
- tr->valid = 0;
- return 0;
- }
-
- gtlbe = &vcpu->arch.guest_tlb[index];
-
- tr->physical_address = tlb_xlate(gtlbe, eaddr);
- /* XXX what does "writeable" and "usermode" even mean? */
- tr->valid = 1;
-
- return 0;
+ return kvmppc_core_vcpu_translate(vcpu, tr);
}
static int kvmppc_booke_init(void)
projects / karo-tx-linux.git / blobdiff