korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-16 16:54:20 +08:00
Code Issues Packages Projects Releases Wiki Activity

KVM: s390: use sigp condition code defines

Browse Source 
Just use the defines instead of using plain numbers and adding
a comment behind each line.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Heiko Carstens 2012-06-26 16:06:40 +02:00 committed by Marcelo Tosatti
parent 0744426e28
commit ea1918dd3d
1 changed files with 29 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
arch/s390/kvm/sigp.c
View File

@ -26,19 +26,19 @@ static int __sigp_sense(struct kvm_vcpu *vcpu, u16 cpu_addr,
int rc; int rc;
if (cpu_addr >= KVM_MAX_VCPUS) if (cpu_addr >= KVM_MAX_VCPUS)
return 3; /* not operational */ return SIGP_CC_NOT_OPERATIONAL;
spin_lock(&fi->lock); spin_lock(&fi->lock);
if (fi->local_int[cpu_addr] == NULL) if (fi->local_int[cpu_addr] == NULL)
rc = 3; /* not operational */ rc = SIGP_CC_NOT_OPERATIONAL;
else if (!(atomic_read(fi->local_int[cpu_addr]->cpuflags) else if (!(atomic_read(fi->local_int[cpu_addr]->cpuflags)
& CPUSTAT_STOPPED)) { & CPUSTAT_STOPPED)) {
*reg &= 0xffffffff00000000UL; *reg &= 0xffffffff00000000UL;
rc = 1; /* status stored */ rc = SIGP_CC_STATUS_STORED;
} else { } else {
*reg &= 0xffffffff00000000UL; *reg &= 0xffffffff00000000UL;
*reg |= SIGP_STATUS_STOPPED; *reg |= SIGP_STATUS_STOPPED;
rc = 1; /* status stored */ rc = SIGP_CC_STATUS_STORED;
} }
spin_unlock(&fi->lock); spin_unlock(&fi->lock);
@ -54,7 +54,7 @@ static int __sigp_emergency(struct kvm_vcpu *vcpu, u16 cpu_addr)
int rc; int rc;
if (cpu_addr >= KVM_MAX_VCPUS) if (cpu_addr >= KVM_MAX_VCPUS)
return 3; /* not operational */ return SIGP_CC_NOT_OPERATIONAL;
inti = kzalloc(sizeof(*inti), GFP_KERNEL); inti = kzalloc(sizeof(*inti), GFP_KERNEL);
if (!inti) if (!inti)
@ -66,7 +66,7 @@ static int __sigp_emergency(struct kvm_vcpu *vcpu, u16 cpu_addr)
spin_lock(&fi->lock); spin_lock(&fi->lock);
li = fi->local_int[cpu_addr]; li = fi->local_int[cpu_addr];
if (li == NULL) { if (li == NULL) {
rc = 3; /* not operational */ rc = SIGP_CC_NOT_OPERATIONAL;
kfree(inti); kfree(inti);
goto unlock; goto unlock;
} }
@ -77,7 +77,7 @@ static int __sigp_emergency(struct kvm_vcpu *vcpu, u16 cpu_addr)
if (waitqueue_active(&li->wq)) if (waitqueue_active(&li->wq))
wake_up_interruptible(&li->wq); wake_up_interruptible(&li->wq);
spin_unlock_bh(&li->lock); spin_unlock_bh(&li->lock);
rc = 0; /* order accepted */ rc = SIGP_CC_ORDER_CODE_ACCEPTED;
VCPU_EVENT(vcpu, 4, "sent sigp emerg to cpu %x", cpu_addr); VCPU_EVENT(vcpu, 4, "sent sigp emerg to cpu %x", cpu_addr);
unlock: unlock:
spin_unlock(&fi->lock); spin_unlock(&fi->lock);
@ -92,7 +92,7 @@ static int __sigp_external_call(struct kvm_vcpu *vcpu, u16 cpu_addr)
int rc; int rc;
if (cpu_addr >= KVM_MAX_VCPUS) if (cpu_addr >= KVM_MAX_VCPUS)
return 3; /* not operational */ return SIGP_CC_NOT_OPERATIONAL;
inti = kzalloc(sizeof(*inti), GFP_KERNEL); inti = kzalloc(sizeof(*inti), GFP_KERNEL);
if (!inti) if (!inti)
@ -104,7 +104,7 @@ static int __sigp_external_call(struct kvm_vcpu *vcpu, u16 cpu_addr)
spin_lock(&fi->lock); spin_lock(&fi->lock);
li = fi->local_int[cpu_addr]; li = fi->local_int[cpu_addr];
if (li == NULL) { if (li == NULL) {
rc = 3; /* not operational */ rc = SIGP_CC_NOT_OPERATIONAL;
kfree(inti); kfree(inti);
goto unlock; goto unlock;
} }
@ -115,7 +115,7 @@ static int __sigp_external_call(struct kvm_vcpu *vcpu, u16 cpu_addr)
if (waitqueue_active(&li->wq)) if (waitqueue_active(&li->wq))
wake_up_interruptible(&li->wq); wake_up_interruptible(&li->wq);
spin_unlock_bh(&li->lock); spin_unlock_bh(&li->lock);
rc = 0; /* order accepted */ rc = SIGP_CC_ORDER_CODE_ACCEPTED;
VCPU_EVENT(vcpu, 4, "sent sigp ext call to cpu %x", cpu_addr); VCPU_EVENT(vcpu, 4, "sent sigp ext call to cpu %x", cpu_addr);
unlock: unlock:
spin_unlock(&fi->lock); spin_unlock(&fi->lock);
@ -143,7 +143,7 @@ static int __inject_sigp_stop(struct kvm_s390_local_interrupt *li, int action)
out: out:
spin_unlock_bh(&li->lock); spin_unlock_bh(&li->lock);
return 0; /* order accepted */ return SIGP_CC_ORDER_CODE_ACCEPTED;
} }
static int __sigp_stop(struct kvm_vcpu *vcpu, u16 cpu_addr, int action) static int __sigp_stop(struct kvm_vcpu *vcpu, u16 cpu_addr, int action)
@ -153,12 +153,12 @@ static int __sigp_stop(struct kvm_vcpu *vcpu, u16 cpu_addr, int action)
int rc; int rc;
if (cpu_addr >= KVM_MAX_VCPUS) if (cpu_addr >= KVM_MAX_VCPUS)
return 3; /* not operational */ return SIGP_CC_NOT_OPERATIONAL;
spin_lock(&fi->lock); spin_lock(&fi->lock);
li = fi->local_int[cpu_addr]; li = fi->local_int[cpu_addr];
if (li == NULL) { if (li == NULL) {
rc = 3; /* not operational */ rc = SIGP_CC_NOT_OPERATIONAL;
goto unlock; goto unlock;
} }
@ -182,11 +182,11 @@ static int __sigp_set_arch(struct kvm_vcpu *vcpu, u32 parameter)
switch (parameter & 0xff) { switch (parameter & 0xff) {
case 0: case 0:
rc = 3; /* not operational */ rc = SIGP_CC_NOT_OPERATIONAL;
break; break;
case 1: case 1:
case 2: case 2:
rc = 0; /* order accepted */ rc = SIGP_CC_ORDER_CODE_ACCEPTED;
break; break;
default: default:
rc = -EOPNOTSUPP; rc = -EOPNOTSUPP;
@ -209,12 +209,12 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address,
copy_from_guest_absolute(vcpu, &tmp, address + PAGE_SIZE, 1)) { copy_from_guest_absolute(vcpu, &tmp, address + PAGE_SIZE, 1)) {
*reg &= 0xffffffff00000000UL; *reg &= 0xffffffff00000000UL;
*reg |= SIGP_STATUS_INVALID_PARAMETER; *reg |= SIGP_STATUS_INVALID_PARAMETER;
return 1; /* invalid parameter */ return SIGP_CC_STATUS_STORED;
} }
inti = kzalloc(sizeof(*inti), GFP_KERNEL); inti = kzalloc(sizeof(*inti), GFP_KERNEL);
if (!inti) if (!inti)
return 2; /* busy */ return SIGP_CC_BUSY;
spin_lock(&fi->lock); spin_lock(&fi->lock);
if (cpu_addr < KVM_MAX_VCPUS) if (cpu_addr < KVM_MAX_VCPUS)
@ -223,7 +223,7 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address,
if (li == NULL) { if (li == NULL) {
*reg &= 0xffffffff00000000UL; *reg &= 0xffffffff00000000UL;
*reg |= SIGP_STATUS_INCORRECT_STATE; *reg |= SIGP_STATUS_INCORRECT_STATE;
rc = 1; /* incorrect state */ rc = SIGP_CC_STATUS_STORED;
kfree(inti); kfree(inti);
goto out_fi; goto out_fi;
} }
@ -233,7 +233,7 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address,
if (!(atomic_read(li->cpuflags) & CPUSTAT_STOPPED)) { if (!(atomic_read(li->cpuflags) & CPUSTAT_STOPPED)) {
*reg &= 0xffffffff00000000UL; *reg &= 0xffffffff00000000UL;
*reg |= SIGP_STATUS_INCORRECT_STATE; *reg |= SIGP_STATUS_INCORRECT_STATE;
rc = 1; /* incorrect state */ rc = SIGP_CC_STATUS_STORED;
kfree(inti); kfree(inti);
goto out_li; goto out_li;
} }
@ -245,7 +245,7 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address,
atomic_set(&li->active, 1); atomic_set(&li->active, 1);
if (waitqueue_active(&li->wq)) if (waitqueue_active(&li->wq))
wake_up_interruptible(&li->wq); wake_up_interruptible(&li->wq);
rc = 0; /* order accepted */ rc = SIGP_CC_ORDER_CODE_ACCEPTED;
VCPU_EVENT(vcpu, 4, "set prefix of cpu %02x to %x", cpu_addr, address); VCPU_EVENT(vcpu, 4, "set prefix of cpu %02x to %x", cpu_addr, address);
out_li: out_li:
@ -262,21 +262,21 @@ static int __sigp_sense_running(struct kvm_vcpu *vcpu, u16 cpu_addr,
struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int; struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
if (cpu_addr >= KVM_MAX_VCPUS) if (cpu_addr >= KVM_MAX_VCPUS)
return 3; /* not operational */ return SIGP_CC_NOT_OPERATIONAL;
spin_lock(&fi->lock); spin_lock(&fi->lock);
if (fi->local_int[cpu_addr] == NULL) if (fi->local_int[cpu_addr] == NULL)
rc = 3; /* not operational */ rc = SIGP_CC_NOT_OPERATIONAL;
else { else {
if (atomic_read(fi->local_int[cpu_addr]->cpuflags) if (atomic_read(fi->local_int[cpu_addr]->cpuflags)
& CPUSTAT_RUNNING) { & CPUSTAT_RUNNING) {
/* running */ /* running */
rc = 0; rc = SIGP_CC_ORDER_CODE_ACCEPTED;
} else { } else {
/* not running */ /* not running */
*reg &= 0xffffffff00000000UL; *reg &= 0xffffffff00000000UL;
*reg |= SIGP_STATUS_NOT_RUNNING; *reg |= SIGP_STATUS_NOT_RUNNING;
rc = 1; rc = SIGP_CC_STATUS_STORED;
} }
} }
spin_unlock(&fi->lock); spin_unlock(&fi->lock);
@ -289,23 +289,23 @@ static int __sigp_sense_running(struct kvm_vcpu *vcpu, u16 cpu_addr,
static int __sigp_restart(struct kvm_vcpu *vcpu, u16 cpu_addr) static int __sigp_restart(struct kvm_vcpu *vcpu, u16 cpu_addr)
{ {
int rc = 0;
struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int; struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
struct kvm_s390_local_interrupt *li; struct kvm_s390_local_interrupt *li;
int rc = SIGP_CC_ORDER_CODE_ACCEPTED;
if (cpu_addr >= KVM_MAX_VCPUS) if (cpu_addr >= KVM_MAX_VCPUS)
return 3; /* not operational */ return SIGP_CC_NOT_OPERATIONAL;
spin_lock(&fi->lock); spin_lock(&fi->lock);
li = fi->local_int[cpu_addr]; li = fi->local_int[cpu_addr];
if (li == NULL) { if (li == NULL) {
rc = 3; /* not operational */ rc = SIGP_CC_NOT_OPERATIONAL;
goto out; goto out;
} }
spin_lock_bh(&li->lock); spin_lock_bh(&li->lock);
if (li->action_bits & ACTION_STOP_ON_STOP) if (li->action_bits & ACTION_STOP_ON_STOP)
rc = 2; /* busy */ rc = SIGP_CC_BUSY;
else else
VCPU_EVENT(vcpu, 4, "sigp restart %x to handle userspace", VCPU_EVENT(vcpu, 4, "sigp restart %x to handle userspace",
cpu_addr); cpu_addr);
@ -380,7 +380,7 @@ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu)
case SIGP_RESTART: case SIGP_RESTART:
vcpu->stat.instruction_sigp_restart++; vcpu->stat.instruction_sigp_restart++;
rc = __sigp_restart(vcpu, cpu_addr); rc = __sigp_restart(vcpu, cpu_addr);
if (rc == 2) /* busy */ if (rc == SIGP_CC_BUSY)
break; break;
/* user space must know about restart */ /* user space must know about restart */
default: default: