提交 f5d0906b 编写于 作者: H Hollis Blanchard 提交者: Avi Kivity

KVM: ppc: remove debug support broken by KVM debug rewrite

After the rewrite of KVM's debug support, this code doesn't even build any
more.
Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>
上级 269e05e4
...@@ -111,11 +111,6 @@ struct kvm_arch { ...@@ -111,11 +111,6 @@ struct kvm_arch {
struct kvm_vcpu_arch { struct kvm_vcpu_arch {
u32 host_stack; u32 host_stack;
u32 host_pid; u32 host_pid;
u32 host_dbcr0;
u32 host_dbcr1;
u32 host_dbcr2;
u32 host_iac[4];
u32 host_msr;
u64 fpr[32]; u64 fpr[32];
ulong gpr[32]; ulong gpr[32];
......
...@@ -77,9 +77,6 @@ extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, ...@@ -77,9 +77,6 @@ extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu); 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_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 void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu);
extern int kvmppc_core_pending_dec(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_program(struct kvm_vcpu *vcpu);
......
...@@ -28,72 +28,6 @@ ...@@ -28,72 +28,6 @@
#include "44x_tlb.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) void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{ {
kvmppc_44x_tlb_load(vcpu); kvmppc_44x_tlb_load(vcpu);
......
...@@ -221,41 +221,18 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) ...@@ -221,41 +221,18 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{ {
if (vcpu->guest_debug.enabled)
kvmppc_core_load_guest_debugstate(vcpu);
kvmppc_core_vcpu_load(vcpu, cpu); kvmppc_core_vcpu_load(vcpu, cpu);
} }
void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
{ {
if (vcpu->guest_debug.enabled)
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. */
_tlbil_all();
kvmppc_core_vcpu_put(vcpu); kvmppc_core_vcpu_put(vcpu);
} }
int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
struct kvm_guest_debug *dbg) struct kvm_guest_debug *dbg)
{ {
int i; return -EINVAL;
vcpu->guest_debug.enabled = dbg->enabled;
if (vcpu->guest_debug.enabled) {
for (i=0; i < ARRAY_SIZE(vcpu->guest_debug.bp); i++) {
if (dbg->breakpoints[i].enabled)
vcpu->guest_debug.bp[i] = dbg->breakpoints[i].address;
else
vcpu->guest_debug.bp[i] = 0;
}
}
return 0;
} }
static void kvmppc_complete_dcr_load(struct kvm_vcpu *vcpu, static void kvmppc_complete_dcr_load(struct kvm_vcpu *vcpu,
......
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