summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/kvm
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kvm')
-rw-r--r--arch/powerpc/kvm/book3s.c1
-rw-r--r--arch/powerpc/kvm/book3s_hv.c1
-rw-r--r--arch/powerpc/kvm/book3s_pr.c32
-rw-r--r--arch/powerpc/kvm/book3s_xics.c29
-rw-r--r--arch/powerpc/kvm/book3s_xics.h1
-rw-r--r--arch/powerpc/kvm/booke.c1
-rw-r--r--arch/powerpc/kvm/powerpc.c22
7 files changed, 64 insertions, 23 deletions
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index b34220d2aa42..47018fcbf7d6 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -54,6 +54,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "queue_intr", VCPU_STAT(queue_intr) },
{ "halt_successful_poll", VCPU_STAT(halt_successful_poll), },
{ "halt_attempted_poll", VCPU_STAT(halt_attempted_poll), },
+ { "halt_poll_invalid", VCPU_STAT(halt_poll_invalid) },
{ "halt_wakeup", VCPU_STAT(halt_wakeup) },
{ "pf_storage", VCPU_STAT(pf_storage) },
{ "sp_storage", VCPU_STAT(sp_storage) },
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 84fb4fcfaa41..93243554cae9 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -27,6 +27,7 @@
#include <linux/export.h>
#include <linux/fs.h>
#include <linux/anon_inodes.h>
+#include <linux/cpu.h>
#include <linux/cpumask.h>
#include <linux/spinlock.h>
#include <linux/page-flags.h>
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 95bceca8f40e..8129b0db131e 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -882,6 +882,24 @@ void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr)
}
#endif
+static void kvmppc_setup_debug(struct kvm_vcpu *vcpu)
+{
+ if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) {
+ u64 msr = kvmppc_get_msr(vcpu);
+
+ kvmppc_set_msr(vcpu, msr | MSR_SE);
+ }
+}
+
+static void kvmppc_clear_debug(struct kvm_vcpu *vcpu)
+{
+ if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) {
+ u64 msr = kvmppc_get_msr(vcpu);
+
+ kvmppc_set_msr(vcpu, msr & ~MSR_SE);
+ }
+}
+
int kvmppc_handle_exit_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
unsigned int exit_nr)
{
@@ -1207,10 +1225,18 @@ program_interrupt:
break;
#endif
case BOOK3S_INTERRUPT_MACHINE_CHECK:
- case BOOK3S_INTERRUPT_TRACE:
kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
r = RESUME_GUEST;
break;
+ case BOOK3S_INTERRUPT_TRACE:
+ if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) {
+ run->exit_reason = KVM_EXIT_DEBUG;
+ r = RESUME_HOST;
+ } else {
+ kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
+ r = RESUME_GUEST;
+ }
+ break;
default:
{
ulong shadow_srr1 = vcpu->arch.shadow_srr1;
@@ -1479,6 +1505,8 @@ static int kvmppc_vcpu_run_pr(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
goto out;
}
+ kvmppc_setup_debug(vcpu);
+
/*
* Interrupts could be timers for the guest which we have to inject
* again, so let's postpone them until we're in the guest and if we
@@ -1501,6 +1529,8 @@ static int kvmppc_vcpu_run_pr(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
ret = __kvmppc_vcpu_run(kvm_run, vcpu);
+ kvmppc_clear_debug(vcpu);
+
/* No need for kvm_guest_exit. It's done in handle_exit.
We also get here with interrupts enabled. */
diff --git a/arch/powerpc/kvm/book3s_xics.c b/arch/powerpc/kvm/book3s_xics.c
index 46871d554057..a75ba38a2d81 100644
--- a/arch/powerpc/kvm/book3s_xics.c
+++ b/arch/powerpc/kvm/book3s_xics.c
@@ -92,7 +92,7 @@ static int ics_deliver_irq(struct kvmppc_xics *xics, u32 irq, u32 level)
* we are the only setter, thus concurrent access is undefined
* to begin with.
*/
- if (level == 1 || level == KVM_INTERRUPT_SET_LEVEL)
+ if ((level == 1 && state->lsi) || level == KVM_INTERRUPT_SET_LEVEL)
state->asserted = 1;
else if (level == 0 || level == KVM_INTERRUPT_UNSET) {
state->asserted = 0;
@@ -280,7 +280,7 @@ static inline bool icp_try_update(struct kvmppc_icp *icp,
if (!success)
goto bail;
- XICS_DBG("UPD [%04x] - C:%02x M:%02x PP: %02x PI:%06x R:%d O:%d\n",
+ XICS_DBG("UPD [%04lx] - C:%02x M:%02x PP: %02x PI:%06x R:%d O:%d\n",
icp->server_num,
old.cppr, old.mfrr, old.pending_pri, old.xisr,
old.need_resend, old.out_ee);
@@ -336,7 +336,7 @@ static bool icp_try_to_deliver(struct kvmppc_icp *icp, u32 irq, u8 priority,
union kvmppc_icp_state old_state, new_state;
bool success;
- XICS_DBG("try deliver %#x(P:%#x) to server %#x\n", irq, priority,
+ XICS_DBG("try deliver %#x(P:%#x) to server %#lx\n", irq, priority,
icp->server_num);
do {
@@ -1174,9 +1174,11 @@ static int xics_get_source(struct kvmppc_xics *xics, long irq, u64 addr)
prio = irqp->saved_priority;
}
val |= prio << KVM_XICS_PRIORITY_SHIFT;
- if (irqp->asserted)
- val |= KVM_XICS_LEVEL_SENSITIVE | KVM_XICS_PENDING;
- else if (irqp->masked_pending || irqp->resend)
+ if (irqp->lsi) {
+ val |= KVM_XICS_LEVEL_SENSITIVE;
+ if (irqp->asserted)
+ val |= KVM_XICS_PENDING;
+ } else if (irqp->masked_pending || irqp->resend)
val |= KVM_XICS_PENDING;
ret = 0;
}
@@ -1228,9 +1230,13 @@ static int xics_set_source(struct kvmppc_xics *xics, long irq, u64 addr)
irqp->priority = prio;
irqp->resend = 0;
irqp->masked_pending = 0;
+ irqp->lsi = 0;
irqp->asserted = 0;
- if ((val & KVM_XICS_PENDING) && (val & KVM_XICS_LEVEL_SENSITIVE))
- irqp->asserted = 1;
+ if (val & KVM_XICS_LEVEL_SENSITIVE) {
+ irqp->lsi = 1;
+ if (val & KVM_XICS_PENDING)
+ irqp->asserted = 1;
+ }
irqp->exists = 1;
arch_spin_unlock(&ics->lock);
local_irq_restore(flags);
@@ -1249,11 +1255,10 @@ int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level,
return ics_deliver_irq(xics, irq, level);
}
-int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm,
- int irq_source_id, int level, bool line_status)
+int kvm_arch_set_irq_inatomic(struct kvm_kernel_irq_routing_entry *irq_entry,
+ struct kvm *kvm, int irq_source_id,
+ int level, bool line_status)
{
- if (!level)
- return -1;
return kvm_set_irq(kvm, irq_source_id, irq_entry->gsi,
level, line_status);
}
diff --git a/arch/powerpc/kvm/book3s_xics.h b/arch/powerpc/kvm/book3s_xics.h
index 56ea44f9867f..a46b954055c4 100644
--- a/arch/powerpc/kvm/book3s_xics.h
+++ b/arch/powerpc/kvm/book3s_xics.h
@@ -39,6 +39,7 @@ struct ics_irq_state {
u8 saved_priority;
u8 resend;
u8 masked_pending;
+ u8 lsi; /* level-sensitive interrupt */
u8 asserted; /* Only for LSI */
u8 exists;
};
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 4d66f44a1657..4afae695899a 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -64,6 +64,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "ext_intr", VCPU_STAT(ext_intr_exits) },
{ "halt_successful_poll", VCPU_STAT(halt_successful_poll) },
{ "halt_attempted_poll", VCPU_STAT(halt_attempted_poll) },
+ { "halt_poll_invalid", VCPU_STAT(halt_poll_invalid) },
{ "halt_wakeup", VCPU_STAT(halt_wakeup) },
{ "doorbell", VCPU_STAT(dbell_exits) },
{ "guest doorbell", VCPU_STAT(gdbell_exits) },
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 6a68730774ee..02416fea7653 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -800,9 +800,9 @@ static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
}
}
-int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
- unsigned int rt, unsigned int bytes,
- int is_default_endian)
+static int __kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ unsigned int rt, unsigned int bytes,
+ int is_default_endian, int sign_extend)
{
int idx, ret;
bool host_swabbed;
@@ -827,7 +827,7 @@ int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
vcpu->arch.mmio_host_swabbed = host_swabbed;
vcpu->mmio_needed = 1;
vcpu->mmio_is_write = 0;
- vcpu->arch.mmio_sign_extend = 0;
+ vcpu->arch.mmio_sign_extend = sign_extend;
idx = srcu_read_lock(&vcpu->kvm->srcu);
@@ -844,6 +844,13 @@ int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
return EMULATE_DO_MMIO;
}
+
+int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
+ unsigned int rt, unsigned int bytes,
+ int is_default_endian)
+{
+ return __kvmppc_handle_load(run, vcpu, rt, bytes, is_default_endian, 0);
+}
EXPORT_SYMBOL_GPL(kvmppc_handle_load);
/* Same as above, but sign extends */
@@ -851,12 +858,7 @@ int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
unsigned int rt, unsigned int bytes,
int is_default_endian)
{
- int r;
-
- vcpu->arch.mmio_sign_extend = 1;
- r = kvmppc_handle_load(run, vcpu, rt, bytes, is_default_endian);
-
- return r;
+ return __kvmppc_handle_load(run, vcpu, rt, bytes, is_default_endian, 1);
}
int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-03 10:58:09 +0000