From: Rusty Russell <[email protected]>
container_of is wonderful, but not casting at all is better. This
patch changes svm.c's internal functions to pass "struct vcpu_svm"
instead of "struct kvm_vcpu" and using container_of.
Signed-off-by: Rusty Russell <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
---
drivers/kvm/svm.c | 232 +++++++++++++++++++++++++----------------------------
1 files changed, 108 insertions(+), 124 deletions(-)
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index c18f0b2..504fb50 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -98,9 +98,9 @@ static inline u32 svm_has(u32 feat)
return svm_features & feat;
}
-static unsigned get_addr_size(struct kvm_vcpu *vcpu)
+static unsigned get_addr_size(struct vcpu_svm *svm)
{
- struct vmcb_save_area *sa = &to_svm(vcpu)->vmcb->save;
+ struct vmcb_save_area *sa = &svm->vmcb->save;
u16 cs_attrib;
if (!(sa->cr0 & X86_CR0_PE) || (sa->rflags & X86_EFLAGS_VM))
@@ -865,17 +865,15 @@ static void save_host_msrs(struct kvm_vcpu *vcpu)
#endif
}
-static void new_asid(struct kvm_vcpu *vcpu, struct svm_cpu_data *svm_data)
+static void new_asid(struct vcpu_svm *svm, struct svm_cpu_data *svm_data)
{
- struct vcpu_svm *svm = to_svm(vcpu);
-
if (svm_data->next_asid > svm_data->max_asid) {
++svm_data->asid_generation;
svm_data->next_asid = 1;
svm->vmcb->control.tlb_ctl = TLB_CONTROL_FLUSH_ALL_ASID;
}
- vcpu->cpu = svm_data->cpu;
+ svm->vcpu.cpu = svm_data->cpu;
svm->asid_generation = svm_data->asid_generation;
svm->vmcb->control.asid = svm_data->next_asid++;
}
@@ -929,42 +927,43 @@ static void svm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long value,
}
}
-static int pf_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
- struct vcpu_svm *svm = to_svm(vcpu);
u32 exit_int_info = svm->vmcb->control.exit_int_info;
+ struct kvm *kvm = svm->vcpu.kvm;
u64 fault_address;
u32 error_code;
enum emulation_result er;
int r;
if (is_external_interrupt(exit_int_info))
- push_irq(vcpu, exit_int_info & SVM_EVTINJ_VEC_MASK);
+ push_irq(&svm->vcpu, exit_int_info & SVM_EVTINJ_VEC_MASK);
- mutex_lock(&vcpu->kvm->lock);
+ mutex_lock(&kvm->lock);
fault_address = svm->vmcb->control.exit_info_2;
error_code = svm->vmcb->control.exit_info_1;
- r = kvm_mmu_page_fault(vcpu, fault_address, error_code);
+ r = kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code);
if (r < 0) {
- mutex_unlock(&vcpu->kvm->lock);
+ mutex_unlock(&kvm->lock);
return r;
}
if (!r) {
- mutex_unlock(&vcpu->kvm->lock);
+ mutex_unlock(&kvm->lock);
return 1;
}
- er = emulate_instruction(vcpu, kvm_run, fault_address, error_code);
- mutex_unlock(&vcpu->kvm->lock);
+ er = emulate_instruction(&svm->vcpu, kvm_run, fault_address,
+ error_code);
+ mutex_unlock(&kvm->lock);
switch (er) {
case EMULATE_DONE:
return 1;
case EMULATE_DO_MMIO:
- ++vcpu->stat.mmio_exits;
+ ++svm->vcpu.stat.mmio_exits;
return 0;
case EMULATE_FAIL:
- vcpu_printf(vcpu, "%s: emulate fail\n", __FUNCTION__);
+ vcpu_printf(&svm->vcpu, "%s: emulate fail\n", __FUNCTION__);
break;
default:
BUG();
@@ -974,21 +973,18 @@ static int pf_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
return 0;
}
-static int nm_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int nm_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
- struct vcpu_svm *svm = to_svm(vcpu);
-
svm->vmcb->control.intercept_exceptions &= ~(1 << NM_VECTOR);
- if (!(vcpu->cr0 & X86_CR0_TS))
+ if (!(svm->vcpu.cr0 & X86_CR0_TS))
svm->vmcb->save.cr0 &= ~X86_CR0_TS;
- vcpu->fpu_active = 1;
+ svm->vcpu.fpu_active = 1;
return 1;
}
-static int shutdown_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int shutdown_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
- struct vcpu_svm *svm = to_svm(vcpu);
/*
* VMCB is undefined after a SHUTDOWN intercept
* so reinitialize it.
@@ -1000,11 +996,10 @@ static int shutdown_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
return 0;
}
-static int io_get_override(struct kvm_vcpu *vcpu,
+static int io_get_override(struct vcpu_svm *svm,
struct vmcb_seg **seg,
int *addr_override)
{
- struct vcpu_svm *svm = to_svm(vcpu);
u8 inst[MAX_INST_SIZE];
unsigned ins_length;
gva_t rip;
@@ -1024,7 +1019,7 @@ static int io_get_override(struct kvm_vcpu *vcpu,
svm->vmcb->control.exit_info_2,
ins_length);
- if (kvm_read_guest(vcpu, rip, ins_length, inst) != ins_length)
+ if (kvm_read_guest(&svm->vcpu, rip, ins_length, inst) != ins_length)
/* #PF */
return 0;
@@ -1065,28 +1060,27 @@ static int io_get_override(struct kvm_vcpu *vcpu,
return 0;
}
-static unsigned long io_adress(struct kvm_vcpu *vcpu, int ins, gva_t *address)
+static unsigned long io_adress(struct vcpu_svm *svm, int ins, gva_t *address)
{
unsigned long addr_mask;
unsigned long *reg;
struct vmcb_seg *seg;
int addr_override;
- struct vcpu_svm *svm = to_svm(vcpu);
struct vmcb_save_area *save_area = &svm->vmcb->save;
u16 cs_attrib = save_area->cs.attrib;
- unsigned addr_size = get_addr_size(vcpu);
+ unsigned addr_size = get_addr_size(svm);
- if (!io_get_override(vcpu, &seg, &addr_override))
+ if (!io_get_override(svm, &seg, &addr_override))
return 0;
if (addr_override)
addr_size = (addr_size == 2) ? 4: (addr_size >> 1);
if (ins) {
- reg = &vcpu->regs[VCPU_REGS_RDI];
+ reg = &svm->vcpu.regs[VCPU_REGS_RDI];
seg = &svm->vmcb->save.es;
} else {
- reg = &vcpu->regs[VCPU_REGS_RSI];
+ reg = &svm->vcpu.regs[VCPU_REGS_RSI];
seg = (seg) ? seg : &svm->vmcb->save.ds;
}
@@ -1099,7 +1093,7 @@ static unsigned long io_adress(struct kvm_vcpu *vcpu, int ins, gva_t *address)
}
if (!(seg->attrib & SVM_SELECTOR_P_SHIFT)) {
- svm_inject_gp(vcpu, 0);
+ svm_inject_gp(&svm->vcpu, 0);
return 0;
}
@@ -1107,16 +1101,15 @@ static unsigned long io_adress(struct kvm_vcpu *vcpu, int ins, gva_t *address)
return addr_mask;
}
-static int io_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int io_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
- struct vcpu_svm *svm = to_svm(vcpu);
u32 io_info = svm->vmcb->control.exit_info_1; //address size bug?
int size, down, in, string, rep;
unsigned port;
unsigned long count;
gva_t address = 0;
- ++vcpu->stat.io_exits;
+ ++svm->vcpu.stat.io_exits;
svm->next_rip = svm->vmcb->control.exit_info_2;
@@ -1131,7 +1124,7 @@ static int io_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
if (string) {
unsigned addr_mask;
- addr_mask = io_adress(vcpu, in, &address);
+ addr_mask = io_adress(svm, in, &address);
if (!addr_mask) {
printk(KERN_DEBUG "%s: get io address failed\n",
__FUNCTION__);
@@ -1139,60 +1132,57 @@ static int io_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
}
if (rep)
- count = vcpu->regs[VCPU_REGS_RCX] & addr_mask;
+ count = svm->vcpu.regs[VCPU_REGS_RCX] & addr_mask;
}
- return kvm_setup_pio(vcpu, kvm_run, in, size, count, string, down,
- address, rep, port);
+ return kvm_setup_pio(&svm->vcpu, kvm_run, in, size, count, string,
+ down, address, rep, port);
}
-static int nop_on_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int nop_on_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
return 1;
}
-static int halt_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int halt_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
- struct vcpu_svm *svm = to_svm(vcpu);
-
svm->next_rip = svm->vmcb->save.rip + 1;
- skip_emulated_instruction(vcpu);
- return kvm_emulate_halt(vcpu);
+ skip_emulated_instruction(&svm->vcpu);
+ return kvm_emulate_halt(&svm->vcpu);
}
-static int vmmcall_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int vmmcall_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
- struct vcpu_svm *svm = to_svm(vcpu);
-
svm->next_rip = svm->vmcb->save.rip + 3;
- skip_emulated_instruction(vcpu);
- return kvm_hypercall(vcpu, kvm_run);
+ skip_emulated_instruction(&svm->vcpu);
+ return kvm_hypercall(&svm->vcpu, kvm_run);
}
-static int invalid_op_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int invalid_op_interception(struct vcpu_svm *svm,
+ struct kvm_run *kvm_run)
{
- inject_ud(vcpu);
+ inject_ud(&svm->vcpu);
return 1;
}
-static int task_switch_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int task_switch_interception(struct vcpu_svm *svm,
+ struct kvm_run *kvm_run)
{
printk(KERN_DEBUG "%s: task swiche is unsupported\n", __FUNCTION__);
kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
return 0;
}
-static int cpuid_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int cpuid_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
- struct vcpu_svm *svm = to_svm(vcpu);
-
svm->next_rip = svm->vmcb->save.rip + 2;
- kvm_emulate_cpuid(vcpu);
+ kvm_emulate_cpuid(&svm->vcpu);
return 1;
}
-static int emulate_on_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int emulate_on_interception(struct vcpu_svm *svm,
+ struct kvm_run *kvm_run)
{
- if (emulate_instruction(vcpu, NULL, 0, 0) != EMULATE_DONE)
+ if (emulate_instruction(&svm->vcpu, NULL, 0, 0) != EMULATE_DONE)
printk(KERN_ERR "%s: failed\n", __FUNCTION__);
return 1;
}
@@ -1241,19 +1231,18 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data)
return 0;
}
-static int rdmsr_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int rdmsr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
- struct vcpu_svm *svm = to_svm(vcpu);
- u32 ecx = vcpu->regs[VCPU_REGS_RCX];
+ u32 ecx = svm->vcpu.regs[VCPU_REGS_RCX];
u64 data;
- if (svm_get_msr(vcpu, ecx, &data))
- svm_inject_gp(vcpu, 0);
+ if (svm_get_msr(&svm->vcpu, ecx, &data))
+ svm_inject_gp(&svm->vcpu, 0);
else {
svm->vmcb->save.rax = data & 0xffffffff;
- vcpu->regs[VCPU_REGS_RDX] = data >> 32;
+ svm->vcpu.regs[VCPU_REGS_RDX] = data >> 32;
svm->next_rip = svm->vmcb->save.rip + 2;
- skip_emulated_instruction(vcpu);
+ skip_emulated_instruction(&svm->vcpu);
}
return 1;
}
@@ -1302,29 +1291,28 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data)
return 0;
}
-static int wrmsr_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int wrmsr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
- struct vcpu_svm *svm = to_svm(vcpu);
- u32 ecx = vcpu->regs[VCPU_REGS_RCX];
+ u32 ecx = svm->vcpu.regs[VCPU_REGS_RCX];
u64 data = (svm->vmcb->save.rax & -1u)
- | ((u64)(vcpu->regs[VCPU_REGS_RDX] & -1u) << 32);
+ | ((u64)(svm->vcpu.regs[VCPU_REGS_RDX] & -1u) << 32);
svm->next_rip = svm->vmcb->save.rip + 2;
- if (svm_set_msr(vcpu, ecx, data))
- svm_inject_gp(vcpu, 0);
+ if (svm_set_msr(&svm->vcpu, ecx, data))
+ svm_inject_gp(&svm->vcpu, 0);
else
- skip_emulated_instruction(vcpu);
+ skip_emulated_instruction(&svm->vcpu);
return 1;
}
-static int msr_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int msr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
- if (to_svm(vcpu)->vmcb->control.exit_info_1)
- return wrmsr_interception(vcpu, kvm_run);
+ if (svm->vmcb->control.exit_info_1)
+ return wrmsr_interception(svm, kvm_run);
else
- return rdmsr_interception(vcpu, kvm_run);
+ return rdmsr_interception(svm, kvm_run);
}
-static int interrupt_window_interception(struct kvm_vcpu *vcpu,
+static int interrupt_window_interception(struct vcpu_svm *svm,
struct kvm_run *kvm_run)
{
/*
@@ -1332,8 +1320,8 @@ static int interrupt_window_interception(struct kvm_vcpu *vcpu,
* possible
*/
if (kvm_run->request_interrupt_window &&
- !vcpu->irq_summary) {
- ++vcpu->stat.irq_window_exits;
+ !svm->vcpu.irq_summary) {
+ ++svm->vcpu.stat.irq_window_exits;
kvm_run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN;
return 0;
}
@@ -1341,7 +1329,7 @@ static int interrupt_window_interception(struct kvm_vcpu *vcpu,
return 1;
}
-static int (*svm_exit_handlers[])(struct kvm_vcpu *vcpu,
+static int (*svm_exit_handlers[])(struct vcpu_svm *svm,
struct kvm_run *kvm_run) = {
[SVM_EXIT_READ_CR0] = emulate_on_interception,
[SVM_EXIT_READ_CR3] = emulate_on_interception,
@@ -1388,9 +1376,8 @@ static int (*svm_exit_handlers[])(struct kvm_vcpu *vcpu,
};
-static int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+static int handle_exit(struct vcpu_svm *svm, struct kvm_run *kvm_run)
{
- struct vcpu_svm *svm = to_svm(vcpu);
u32 exit_code = svm->vmcb->control.exit_code;
if (is_external_interrupt(svm->vmcb->control.exit_int_info) &&
@@ -1407,7 +1394,7 @@ static int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
return 0;
}
- return svm_exit_handlers[exit_code](vcpu, kvm_run);
+ return svm_exit_handlers[exit_code](svm, kvm_run);
}
static void reload_tss(struct kvm_vcpu *vcpu)
@@ -1419,80 +1406,77 @@ static void reload_tss(struct kvm_vcpu *vcpu)
load_TR_desc();
}
-static void pre_svm_run(struct kvm_vcpu *vcpu)
+static void pre_svm_run(struct vcpu_svm *svm)
{
- struct vcpu_svm *svm = to_svm(vcpu);
int cpu = raw_smp_processor_id();
struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu);
svm->vmcb->control.tlb_ctl = TLB_CONTROL_DO_NOTHING;
- if (vcpu->cpu != cpu ||
+ if (svm->vcpu.cpu != cpu ||
svm->asid_generation != svm_data->asid_generation)
- new_asid(vcpu, svm_data);
+ new_asid(svm, svm_data);
}
-static inline void kvm_do_inject_irq(struct kvm_vcpu *vcpu)
+static inline void kvm_do_inject_irq(struct vcpu_svm *svm)
{
struct vmcb_control_area *control;
- control = &to_svm(vcpu)->vmcb->control;
- control->int_vector = pop_irq(vcpu);
+ control = &svm->vmcb->control;
+ control->int_vector = pop_irq(&svm->vcpu);
control->int_ctl &= ~V_INTR_PRIO_MASK;
control->int_ctl |= V_IRQ_MASK |
((/*control->int_vector >> 4*/ 0xf) << V_INTR_PRIO_SHIFT);
}
-static void kvm_reput_irq(struct kvm_vcpu *vcpu)
+static void kvm_reput_irq(struct vcpu_svm *svm)
{
- struct vmcb_control_area *control = &to_svm(vcpu)->vmcb->control;
+ struct vmcb_control_area *control = &svm->vmcb->control;
if (control->int_ctl & V_IRQ_MASK) {
control->int_ctl &= ~V_IRQ_MASK;
- push_irq(vcpu, control->int_vector);
+ push_irq(&svm->vcpu, control->int_vector);
}
- vcpu->interrupt_window_open =
+ svm->vcpu.interrupt_window_open =
!(control->int_state & SVM_INTERRUPT_SHADOW_MASK);
}
-static void do_interrupt_requests(struct kvm_vcpu *vcpu,
+static void do_interrupt_requests(struct vcpu_svm *svm,
struct kvm_run *kvm_run)
{
- struct vcpu_svm *svm = to_svm(vcpu);
struct vmcb_control_area *control = &svm->vmcb->control;
- vcpu->interrupt_window_open =
+ svm->vcpu.interrupt_window_open =
(!(control->int_state & SVM_INTERRUPT_SHADOW_MASK) &&
(svm->vmcb->save.rflags & X86_EFLAGS_IF));
- if (vcpu->interrupt_window_open && vcpu->irq_summary)
+ if (svm->vcpu.interrupt_window_open && svm->vcpu.irq_summary)
/*
* If interrupts enabled, and not blocked by sti or mov ss. Good.
*/
- kvm_do_inject_irq(vcpu);
+ kvm_do_inject_irq(svm);
/*
* Interrupts blocked. Wait for unblock.
*/
- if (!vcpu->interrupt_window_open &&
- (vcpu->irq_summary || kvm_run->request_interrupt_window)) {
+ if (!svm->vcpu.interrupt_window_open &&
+ (svm->vcpu.irq_summary || kvm_run->request_interrupt_window)) {
control->intercept |= 1ULL << INTERCEPT_VINTR;
} else
control->intercept &= ~(1ULL << INTERCEPT_VINTR);
}
-static void post_kvm_run_save(struct kvm_vcpu *vcpu,
+static void post_kvm_run_save(struct vcpu_svm *svm,
struct kvm_run *kvm_run)
{
- struct vcpu_svm *svm = to_svm(vcpu);
-
- kvm_run->ready_for_interrupt_injection = (vcpu->interrupt_window_open &&
- vcpu->irq_summary == 0);
+ kvm_run->ready_for_interrupt_injection
+ = (svm->vcpu.interrupt_window_open &&
+ svm->vcpu.irq_summary == 0);
kvm_run->if_flag = (svm->vmcb->save.rflags & X86_EFLAGS_IF) != 0;
- kvm_run->cr8 = vcpu->cr8;
- kvm_run->apic_base = vcpu->apic_base;
+ kvm_run->cr8 = svm->vcpu.cr8;
+ kvm_run->apic_base = svm->vcpu.apic_base;
}
/*
@@ -1501,13 +1485,13 @@ static void post_kvm_run_save(struct kvm_vcpu *vcpu,
*
* No need to exit to userspace if we already have an interrupt queued.
*/
-static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu,
+static int dm_request_for_irq_injection(struct vcpu_svm *svm,
struct kvm_run *kvm_run)
{
- return (!vcpu->irq_summary &&
+ return (!svm->vcpu.irq_summary &&
kvm_run->request_interrupt_window &&
- vcpu->interrupt_window_open &&
- (to_svm(vcpu)->vmcb->save.rflags & X86_EFLAGS_IF));
+ svm->vcpu.interrupt_window_open &&
+ (svm->vmcb->save.rflags & X86_EFLAGS_IF));
}
static void save_db_regs(unsigned long *db_regs)
@@ -1545,7 +1529,7 @@ again:
return r;
if (!vcpu->mmio_read_completed)
- do_interrupt_requests(vcpu, kvm_run);
+ do_interrupt_requests(svm, kvm_run);
clgi();
@@ -1554,7 +1538,7 @@ again:
if (test_and_clear_bit(KVM_TLB_FLUSH, &vcpu->requests))
svm_flush_tlb(vcpu);
- pre_svm_run(vcpu);
+ pre_svm_run(svm);
save_host_msrs(vcpu);
fs_selector = read_fs();
@@ -1714,7 +1698,7 @@ again:
stgi();
- kvm_reput_irq(vcpu);
+ kvm_reput_irq(svm);
svm->next_rip = 0;
@@ -1722,29 +1706,29 @@ again:
kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY;
kvm_run->fail_entry.hardware_entry_failure_reason
= svm->vmcb->control.exit_code;
- post_kvm_run_save(vcpu, kvm_run);
+ post_kvm_run_save(svm, kvm_run);
return 0;
}
- r = handle_exit(vcpu, kvm_run);
+ r = handle_exit(svm, kvm_run);
if (r > 0) {
if (signal_pending(current)) {
++vcpu->stat.signal_exits;
- post_kvm_run_save(vcpu, kvm_run);
+ post_kvm_run_save(svm, kvm_run);
kvm_run->exit_reason = KVM_EXIT_INTR;
return -EINTR;
}
- if (dm_request_for_irq_injection(vcpu, kvm_run)) {
+ if (dm_request_for_irq_injection(svm, kvm_run)) {
++vcpu->stat.request_irq_exits;
- post_kvm_run_save(vcpu, kvm_run);
+ post_kvm_run_save(svm, kvm_run);
kvm_run->exit_reason = KVM_EXIT_INTR;
return -EINTR;
}
kvm_resched(vcpu);
goto again;
}
- post_kvm_run_save(vcpu, kvm_run);
+ post_kvm_run_save(svm, kvm_run);
return r;
}
--
1.5.3
-
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