aboutsummaryrefslogtreecommitdiff
path: root/arch/s390
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/Kconfig1
-rw-r--r--arch/s390/kernel/kprobes.c12
-rw-r--r--arch/s390/kernel/process.c2
-rw-r--r--arch/s390/kernel/setup.c4
-rw-r--r--arch/s390/kernel/smp.c36
-rw-r--r--arch/s390/kernel/time.c35
-rw-r--r--arch/s390/kernel/topology.c14
-rw-r--r--arch/s390/kvm/gaccess.h62
-rw-r--r--arch/s390/kvm/intercept.c14
-rw-r--r--arch/s390/kvm/interrupt.c53
-rw-r--r--arch/s390/kvm/kvm-s390.c30
-rw-r--r--arch/s390/kvm/priv.c2
-rw-r--r--arch/s390/kvm/sigp.c25
-rw-r--r--arch/s390/mm/hugetlbpage.c8
-rw-r--r--arch/s390/mm/init.c32
15 files changed, 167 insertions, 163 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index eb530b4128b..2ed88122be9 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -565,6 +565,7 @@ bool "s390 guest support (EXPERIMENTAL)"
depends on 64BIT && EXPERIMENTAL
select VIRTIO
select VIRTIO_RING
+ select VIRTIO_CONSOLE
help
Select this option if you want to run the kernel under s390 linux
endmenu
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index 288ad490a6d..569079ec4ff 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -197,7 +197,7 @@ void __kprobes arch_arm_kprobe(struct kprobe *p)
args.new = BREAKPOINT_INSTRUCTION;
kcb->kprobe_status = KPROBE_SWAP_INST;
- stop_machine_run(swap_instruction, &args, NR_CPUS);
+ stop_machine(swap_instruction, &args, NULL);
kcb->kprobe_status = status;
}
@@ -212,7 +212,7 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p)
args.new = p->opcode;
kcb->kprobe_status = KPROBE_SWAP_INST;
- stop_machine_run(swap_instruction, &args, NR_CPUS);
+ stop_machine(swap_instruction, &args, NULL);
kcb->kprobe_status = status;
}
@@ -270,7 +270,6 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
__ctl_store(kcb->kprobe_saved_ctl, 9, 11);
}
-/* Called with kretprobe_lock held */
void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
struct pt_regs *regs)
{
@@ -332,7 +331,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
* No kprobe at this address. The fault has not been
* caused by a kprobe breakpoint. The race of breakpoint
* vs. kprobe remove does not exist because on s390 we
- * use stop_machine_run to arm/disarm the breakpoints.
+ * use stop_machine to arm/disarm the breakpoints.
*/
goto no_kprobe;
@@ -377,8 +376,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline;
INIT_HLIST_HEAD(&empty_rp);
- spin_lock_irqsave(&kretprobe_lock, flags);
- head = kretprobe_inst_table_head(current);
+ kretprobe_hash_lock(current, &head, &flags);
/*
* It is possible to have multiple instances associated with a given
@@ -417,7 +415,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
regs->psw.addr = orig_ret_address | PSW_ADDR_AMODE;
reset_current_kprobe();
- spin_unlock_irqrestore(&kretprobe_lock, flags);
+ kretprobe_hash_unlock(current, &flags);
preempt_enable_no_resched();
hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 85defd01d29..9839767d084 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -142,7 +142,7 @@ static void default_idle(void)
void cpu_idle(void)
{
for (;;) {
- tick_nohz_stop_sched_tick();
+ tick_nohz_stop_sched_tick(1);
while (!need_resched())
default_idle();
tick_nohz_restart_sched_tick();
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index b358e18273b..62122bad1e3 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -54,6 +54,7 @@
#include <asm/sections.h>
#include <asm/ebcdic.h>
#include <asm/compat.h>
+#include <asm/kvm_virtio.h>
long psw_kernel_bits = (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_PRIMARY |
PSW_MASK_MCHECK | PSW_DEFAULT_KEY);
@@ -766,7 +767,8 @@ setup_arch(char **cmdline_p)
printk("We are running under VM (64 bit mode)\n");
else if (MACHINE_IS_KVM) {
printk("We are running under KVM (64 bit mode)\n");
- add_preferred_console("ttyS", 1, NULL);
+ add_preferred_console("hvc", 0, NULL);
+ s390_virtio_console_init();
} else
printk("We are running native (64 bit mode)\n");
#endif /* CONFIG_64BIT */
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index b6781030cfb..b795b3e24af 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -864,7 +864,8 @@ int setup_profiling_timer(unsigned int multiplier)
}
#ifdef CONFIG_HOTPLUG_CPU
-static ssize_t cpu_configure_show(struct sys_device *dev, char *buf)
+static ssize_t cpu_configure_show(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
ssize_t count;
@@ -874,8 +875,9 @@ static ssize_t cpu_configure_show(struct sys_device *dev, char *buf)
return count;
}
-static ssize_t cpu_configure_store(struct sys_device *dev, const char *buf,
- size_t count)
+static ssize_t cpu_configure_store(struct sys_device *dev,
+ struct sysdev_attribute *attr,
+ const char *buf, size_t count)
{
int cpu = dev->id;
int val, rc;
@@ -922,7 +924,8 @@ out:
static SYSDEV_ATTR(configure, 0644, cpu_configure_show, cpu_configure_store);
#endif /* CONFIG_HOTPLUG_CPU */
-static ssize_t cpu_polarization_show(struct sys_device *dev, char *buf)
+static ssize_t cpu_polarization_show(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
int cpu = dev->id;
ssize_t count;
@@ -950,7 +953,8 @@ static ssize_t cpu_polarization_show(struct sys_device *dev, char *buf)
}
static SYSDEV_ATTR(polarization, 0444, cpu_polarization_show, NULL);
-static ssize_t show_cpu_address(struct sys_device *dev, char *buf)
+static ssize_t show_cpu_address(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
return sprintf(buf, "%d\n", __cpu_logical_map[dev->id]);
}
@@ -970,7 +974,8 @@ static struct attribute_group cpu_common_attr_group = {
.attrs = cpu_common_attrs,
};
-static ssize_t show_capability(struct sys_device *dev, char *buf)
+static ssize_t show_capability(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
unsigned int capability;
int rc;
@@ -982,7 +987,8 @@ static ssize_t show_capability(struct sys_device *dev, char *buf)
}
static SYSDEV_ATTR(capability, 0444, show_capability, NULL);
-static ssize_t show_idle_count(struct sys_device *dev, char *buf)
+static ssize_t show_idle_count(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
struct s390_idle_data *idle;
unsigned long long idle_count;
@@ -995,7 +1001,8 @@ static ssize_t show_idle_count(struct sys_device *dev, char *buf)
}
static SYSDEV_ATTR(idle_count, 0444, show_idle_count, NULL);
-static ssize_t show_idle_time(struct sys_device *dev, char *buf)
+static ssize_t show_idle_time(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
struct s390_idle_data *idle;
unsigned long long new_time;
@@ -1112,7 +1119,9 @@ out:
return rc;
}
-static ssize_t __ref rescan_store(struct sys_device *dev, const char *buf,
+static ssize_t __ref rescan_store(struct sys_device *dev,
+ struct sysdev_attribute *attr,
+ const char *buf,
size_t count)
{
int rc;
@@ -1123,7 +1132,9 @@ static ssize_t __ref rescan_store(struct sys_device *dev, const char *buf,
static SYSDEV_ATTR(rescan, 0200, NULL, rescan_store);
#endif /* CONFIG_HOTPLUG_CPU */
-static ssize_t dispatching_show(struct sys_device *dev, char *buf)
+static ssize_t dispatching_show(struct sys_device *dev,
+ struct sysdev_attribute *attr,
+ char *buf)
{
ssize_t count;
@@ -1133,8 +1144,9 @@ static ssize_t dispatching_show(struct sys_device *dev, char *buf)
return count;
}
-static ssize_t dispatching_store(struct sys_device *dev, const char *buf,
- size_t count)
+static ssize_t dispatching_store(struct sys_device *dev,
+ struct sysdev_attribute *attr,
+ const char *buf, size_t count)
{
int val, rc;
char delim;
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index f2cede3947b..ab70d9bd926 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -1100,7 +1100,9 @@ static inline struct etr_aib *etr_aib_from_dev(struct sys_device *dev)
return etr_port1_online ? &etr_port1 : NULL;
}
-static ssize_t etr_online_show(struct sys_device *dev, char *buf)
+static ssize_t etr_online_show(struct sys_device *dev,
+ struct sysdev_attribute *attr,
+ char *buf)
{
unsigned int online;
@@ -1109,7 +1111,8 @@ static ssize_t etr_online_show(struct sys_device *dev, char *buf)
}
static ssize_t etr_online_store(struct sys_device *dev,
- const char *buf, size_t count)
+ struct sysdev_attribute *attr,
+ const char *buf, size_t count)
{
unsigned int value;
@@ -1136,7 +1139,9 @@ static ssize_t etr_online_store(struct sys_device *dev,
static SYSDEV_ATTR(online, 0600, etr_online_show, etr_online_store);
-static ssize_t etr_stepping_control_show(struct sys_device *dev, char *buf)
+static ssize_t etr_stepping_control_show(struct sys_device *dev,
+ struct sysdev_attribute *attr,
+ char *buf)
{
return sprintf(buf, "%i\n", (dev == &etr_port0_dev) ?
etr_eacr.e0 : etr_eacr.e1);
@@ -1144,7 +1149,8 @@ static ssize_t etr_stepping_control_show(struct sys_device *dev, char *buf)
static SYSDEV_ATTR(stepping_control, 0400, etr_stepping_control_show, NULL);
-static ssize_t etr_mode_code_show(struct sys_device *dev, char *buf)
+static ssize_t etr_mode_code_show(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
if (!etr_port0_online && !etr_port1_online)
/* Status word is not uptodate if both ports are offline. */
@@ -1155,7 +1161,8 @@ static ssize_t etr_mode_code_show(struct sys_device *dev, char *buf)
static SYSDEV_ATTR(state_code, 0400, etr_mode_code_show, NULL);
-static ssize_t etr_untuned_show(struct sys_device *dev, char *buf)
+static ssize_t etr_untuned_show(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
struct etr_aib *aib = etr_aib_from_dev(dev);
@@ -1166,7 +1173,8 @@ static ssize_t etr_untuned_show(struct sys_device *dev, char *buf)
static SYSDEV_ATTR(untuned, 0400, etr_untuned_show, NULL);
-static ssize_t etr_network_id_show(struct sys_device *dev, char *buf)
+static ssize_t etr_network_id_show(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
struct etr_aib *aib = etr_aib_from_dev(dev);
@@ -1177,7 +1185,8 @@ static ssize_t etr_network_id_show(struct sys_device *dev, char *buf)
static SYSDEV_ATTR(network, 0400, etr_network_id_show, NULL);
-static ssize_t etr_id_show(struct sys_device *dev, char *buf)
+static ssize_t etr_id_show(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
struct etr_aib *aib = etr_aib_from_dev(dev);
@@ -1188,7 +1197,8 @@ static ssize_t etr_id_show(struct sys_device *dev, char *buf)
static SYSDEV_ATTR(id, 0400, etr_id_show, NULL);
-static ssize_t etr_port_number_show(struct sys_device *dev, char *buf)
+static ssize_t etr_port_number_show(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
struct etr_aib *aib = etr_aib_from_dev(dev);
@@ -1199,7 +1209,8 @@ static ssize_t etr_port_number_show(struct sys_device *dev, char *buf)
static SYSDEV_ATTR(port, 0400, etr_port_number_show, NULL);
-static ssize_t etr_coupled_show(struct sys_device *dev, char *buf)
+static ssize_t etr_coupled_show(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
struct etr_aib *aib = etr_aib_from_dev(dev);
@@ -1210,7 +1221,8 @@ static ssize_t etr_coupled_show(struct sys_device *dev, char *buf)
static SYSDEV_ATTR(coupled, 0400, etr_coupled_show, NULL);
-static ssize_t etr_local_time_show(struct sys_device *dev, char *buf)
+static ssize_t etr_local_time_show(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
struct etr_aib *aib = etr_aib_from_dev(dev);
@@ -1221,7 +1233,8 @@ static ssize_t etr_local_time_show(struct sys_device *dev, char *buf)
static SYSDEV_ATTR(local_time, 0400, etr_local_time_show, NULL);
-static ssize_t etr_utc_offset_show(struct sys_device *dev, char *buf)
+static ssize_t etr_utc_offset_show(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
struct etr_aib *aib = etr_aib_from_dev(dev);
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 212d618b009..632b13e1005 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -9,7 +9,6 @@
#include <linux/device.h>
#include <linux/bootmem.h>
#include <linux/sched.h>
-#include <linux/kthread.h>
#include <linux/workqueue.h>
#include <linux/cpu.h>
#include <linux/smp.h>
@@ -230,20 +229,9 @@ void arch_update_cpu_topology(void)
}
}
-static int topology_kthread(void *data)
-{
- arch_reinit_sched_domains();
- return 0;
-}
-
static void topology_work_fn(struct work_struct *work)
{
- /* We can't call arch_reinit_sched_domains() from a multi-threaded
- * workqueue context since it may deadlock in case of cpu hotplug.
- * So we have to create a kernel thread in order to call
- * arch_reinit_sched_domains().
- */
- kthread_run(topology_kthread, NULL, "topology_update");
+ arch_reinit_sched_domains();
}
void topology_schedule_update(void)
diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h
index 4e0633c413f..ed60f3a74a8 100644
--- a/arch/s390/kvm/gaccess.h
+++ b/arch/s390/kvm/gaccess.h
@@ -18,11 +18,11 @@
#include <asm/uaccess.h>
static inline void __user *__guestaddr_to_user(struct kvm_vcpu *vcpu,
- u64 guestaddr)
+ unsigned long guestaddr)
{
- u64 prefix = vcpu->arch.sie_block->prefix;
- u64 origin = vcpu->kvm->arch.guest_origin;
- u64 memsize = vcpu->kvm->arch.guest_memsize;
+ unsigned long prefix = vcpu->arch.sie_block->prefix;
+ unsigned long origin = vcpu->kvm->arch.guest_origin;
+ unsigned long memsize = vcpu->kvm->arch.guest_memsize;
if (guestaddr < 2 * PAGE_SIZE)
guestaddr += prefix;
@@ -37,7 +37,7 @@ static inline void __user *__guestaddr_to_user(struct kvm_vcpu *vcpu,
return (void __user *) guestaddr;
}
-static inline int get_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int get_guest_u64(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u64 *result)
{
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -47,10 +47,10 @@ static inline int get_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr,
if (IS_ERR((void __force *) uptr))
return PTR_ERR((void __force *) uptr);
- return get_user(*result, (u64 __user *) uptr);
+ return get_user(*result, (unsigned long __user *) uptr);
}
-static inline int get_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int get_guest_u32(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u32 *result)
{
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -63,7 +63,7 @@ static inline int get_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr,
return get_user(*result, (u32 __user *) uptr);
}
-static inline int get_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int get_guest_u16(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u16 *result)
{
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -76,7 +76,7 @@ static inline int get_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr,
return get_user(*result, (u16 __user *) uptr);
}
-static inline int get_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int get_guest_u8(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u8 *result)
{
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -87,7 +87,7 @@ static inline int get_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr,
return get_user(*result, (u8 __user *) uptr);
}
-static inline int put_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int put_guest_u64(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u64 value)
{
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -100,7 +100,7 @@ static inline int put_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr,
return put_user(value, (u64 __user *) uptr);
}
-static inline int put_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int put_guest_u32(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u32 value)
{
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -113,7 +113,7 @@ static inline int put_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr,
return put_user(value, (u32 __user *) uptr);
}
-static inline int put_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int put_guest_u16(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u16 value)
{
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -126,7 +126,7 @@ static inline int put_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr,
return put_user(value, (u16 __user *) uptr);
}
-static inline int put_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr,
+static inline int put_guest_u8(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u8 value)
{
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
@@ -138,7 +138,8 @@ static inline int put_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr,
}
-static inline int __copy_to_guest_slow(struct kvm_vcpu *vcpu, u64 guestdest,
+static inline int __copy_to_guest_slow(struct kvm_vcpu *vcpu,
+ unsigned long guestdest,
const void *from, unsigned long n)
{
int rc;
@@ -153,12 +154,12 @@ static inline int __copy_to_guest_slow(struct kvm_vcpu *vcpu, u64 guestdest,
return 0;
}
-static inline int copy_to_guest(struct kvm_vcpu *vcpu, u64 guestdest,
+static inline int copy_to_guest(struct kvm_vcpu *vcpu, unsigned long guestdest,
const void *from, unsigned long n)
{
- u64 prefix = vcpu->arch.sie_block->prefix;
- u64 origin = vcpu->kvm->arch.guest_origin;
- u64 memsize = vcpu->kvm->arch.guest_memsize;
+ unsigned long prefix = vcpu->arch.sie_block->prefix;
+ unsigned long origin = vcpu->kvm->arch.guest_origin;
+ unsigned long memsize = vcpu->kvm->arch.guest_memsize;
if ((guestdest < 2 * PAGE_SIZE) && (guestdest + n > 2 * PAGE_SIZE))
goto slowpath;
@@ -189,7 +190,8 @@ slowpath:
}
static inline int __copy_from_guest_slow(struct kvm_vcpu *vcpu, void *to,
- u64 guestsrc, unsigned long n)
+ unsigned long guestsrc,
+ unsigned long n)
{
int rc;
unsigned long i;
@@ -204,11 +206,11 @@ static inline int __copy_from_guest_slow(struct kvm_vcpu *vcpu, void *to,
}
static inline int copy_from_guest(struct kvm_vcpu *vcpu, void *to,
- u64 guestsrc, unsigned long n)
+ unsigned long guestsrc, unsigned long n)
{
- u64 prefix = vcpu->arch.sie_block->prefix;
- u64 origin = vcpu->kvm->arch.guest_origin;
- u64 memsize = vcpu->kvm->arch.guest_memsize;
+ unsigned long prefix = vcpu->arch.sie_block->prefix;
+ unsigned long origin = vcpu->kvm->arch.guest_origin;
+ unsigned long memsize = vcpu->kvm->arch.guest_memsize;
if ((guestsrc < 2 * PAGE_SIZE) && (guestsrc + n > 2 * PAGE_SIZE))
goto slowpath;
@@ -238,11 +240,12 @@ slowpath:
return __copy_from_guest_slow(vcpu, to, guestsrc, n);
}
-static inline int copy_to_guest_absolute(struct kvm_vcpu *vcpu, u64 guestdest,
+static inline int copy_to_guest_absolute(struct kvm_vcpu *vcpu,
+ unsigned long guestdest,
const void *from, unsigned long n)
{
- u64 origin = vcpu->kvm->arch.guest_origin;
- u64 memsize = vcpu->kvm->arch.guest_memsize;
+ unsigned long origin = vcpu->kvm->arch.guest_origin;
+ unsigned long memsize = vcpu->kvm->arch.guest_memsize;
if (guestdest + n > memsize)
return -EFAULT;
@@ -256,10 +259,11 @@ static inline int copy_to_guest_absolute(struct kvm_vcpu *vcpu, u64 guestdest,
}
static inline int copy_from_guest_absolute(struct kvm_vcpu *vcpu, void *to,
- u64 guestsrc, unsigned long n)
+ unsigned long guestsrc,
+ unsigned long n)
{
- u64 origin = vcpu->kvm->arch.guest_origin;
- u64 memsize = vcpu->kvm->arch.guest_memsize;
+ unsigned long origin = vcpu->kvm->arch.guest_origin;
+ unsigned long memsize = vcpu->kvm->arch.guest_memsize;
if (guestsrc + n > memsize)
return -EFAULT;
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 47a0b642174..61236102203 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -20,7 +20,7 @@
#include "kvm-s390.h"
#include "gaccess.h"
-static int handle_lctg(struct kvm_vcpu *vcpu)
+static int handle_lctlg(struct kvm_vcpu *vcpu)
{
int reg1 = (vcpu->arch.sie_block->ipa & 0x00f0) >> 4;
int reg3 = vcpu->arch.sie_block->ipa & 0x000f;
@@ -30,7 +30,7 @@ static int handle_lctg(struct kvm_vcpu *vcpu)
u64 useraddr;
int reg, rc;
- vcpu->stat.instruction_lctg++;
+ vcpu->stat.instruction_lctlg++;
if ((vcpu->arch.sie_block->ipb & 0xff) != 0x2f)
return -ENOTSUPP;
@@ -38,9 +38,12 @@ static int handle_lctg(struct kvm_vcpu *vcpu)
if (base2)
useraddr += vcpu->arch.guest_gprs[base2];
+ if (useraddr & 7)
+ return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+
reg = reg1;
- VCPU_EVENT(vcpu, 5, "lctg r1:%x, r3:%x,b2:%x,d2:%x", reg1, reg3, base2,
+ VCPU_EVENT(vcpu, 5, "lctlg r1:%x, r3:%x,b2:%x,d2:%x", reg1, reg3, base2,
disp2);
do {
@@ -74,6 +77,9 @@ static int handle_lctl(struct kvm_vcpu *vcpu)
if (base2)
useraddr += vcpu->arch.guest_gprs[base2];
+ if (useraddr & 3)
+ return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+
VCPU_EVENT(vcpu, 5, "lctl r1:%x, r3:%x,b2:%x,d2:%x", reg1, reg3, base2,
disp2);
@@ -99,7 +105,7 @@ static intercept_handler_t instruction_handlers[256] = {
[0xae] = kvm_s390_handle_sigp,
[0xb2] = kvm_s390_handle_priv,
[0xb7] = handle_lctl,
- [0xeb] = handle_lctg,
+ [0xeb] = handle_lctlg,
};
static int handle_noop(struct kvm_vcpu *vcpu)
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 84a7fed4cd4..2960702b482 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -13,6 +13,7 @@
#include <asm/lowcore.h>
#include <asm/uaccess.h>
#include <linux/kvm_host.h>
+#include <linux/signal.h>
#include "kvm-s390.h"
#include "gaccess.h"
@@ -31,7 +32,7 @@ static int psw_interrupts_disabled(struct kvm_vcpu *vcpu)
}
static int __interrupt_is_deliverable(struct kvm_vcpu *vcpu,
- struct interrupt_info *inti)
+ struct kvm_s390_interrupt_info *inti)
{
switch (inti->type) {
case KVM_S390_INT_EMERGENCY:
@@ -91,7 +92,7 @@ static void __set_cpuflag(struct kvm_vcpu *vcpu, u32 flag)
}
static void __set_intercept_indicator(struct kvm_vcpu *vcpu,
- struct interrupt_info *inti)
+ struct kvm_s390_interrupt_info *inti)
{
switch (inti->type) {
case KVM_S390_INT_EMERGENCY:
@@ -111,7 +112,7 @@ static void __set_intercept_indicator(struct kvm_vcpu *vcpu,
}
static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
- struct interrupt_info *inti)
+ struct kvm_s390_interrupt_info *inti)
{
const unsigned short table[] = { 2, 4, 4, 6 };
int rc, exception = 0;
@@ -246,15 +247,10 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
default:
BUG();
}
-
if (exception) {
- VCPU_EVENT(vcpu, 1, "%s", "program exception while delivering"
- " interrupt");
- kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
- if (inti->type == KVM_S390_PROGRAM_INT) {
- printk(KERN_WARNING "kvm: recursive program check\n");
- BUG();
- }
+ printk("kvm: The guest lowcore is not mapped during interrupt "
+ "delivery, killing userspace\n");
+ do_exit(SIGKILL);
}
}
@@ -277,22 +273,19 @@ static int __try_deliver_ckc_interrupt(struct kvm_vcpu *vcpu)
__LC_EXT_NEW_PSW, sizeof(psw_t));
if (rc == -EFAULT)
exception = 1;
-
if (exception) {
- VCPU_EVENT(vcpu, 1, "%s", "program exception while delivering" \
- " ckc interrupt");
- kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
- return 0;
+ printk("kvm: The guest lowcore is not mapped during interrupt "
+ "delivery, killing userspace\n");
+ do_exit(SIGKILL);
}
-
return 1;
}
int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu)
{
- struct local_interrupt *li = &vcpu->arch.local_int;
- struct float_interrupt *fi = vcpu->arch.local_int.float_int;
- struct interrupt_info *inti;
+ struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+ struct kvm_s390_float_interrupt *fi = vcpu->arch.local_int.float_int;
+ struct kvm_s390_interrupt_info *inti;
int rc = 0;
if (atomic_read(&li->active)) {
@@ -408,9 +401,9 @@ void kvm_s390_idle_wakeup(unsigned long data)
void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
{
- struct local_interrupt *li = &vcpu->arch.local_int;
- struct float_interrupt *fi = vcpu->arch.local_int.float_int;
- struct interrupt_info *n, *inti = NULL;
+ struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+ struct kvm_s390_float_interrupt *fi = vcpu->arch.local_int.float_int;
+ struct kvm_s390_interrupt_info *n, *inti = NULL;
int deliver;
__reset_intercept_indicators(vcpu);
@@ -465,8 +458,8 @@ void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code)
{
- struct local_interrupt *li = &vcpu->arch.local_int;
- struct interrupt_info *inti;
+ struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+ struct kvm_s390_interrupt_info *inti;
inti = kzalloc(sizeof(*inti), GFP_KERNEL);
if (!inti)
@@ -487,9 +480,9 @@ int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code)
int kvm_s390_inject_vm(struct kvm *kvm,
struct kvm_s390_interrupt *s390int)
{
- struct local_interrupt *li;
- struct float_interrupt *fi;
- struct interrupt_info *inti;
+ struct kvm_s390_local_interrupt *li;
+ struct kvm_s390_float_interrupt *fi;
+ struct kvm_s390_interrupt_info *inti;
int sigcpu;
inti = kzalloc(sizeof(*inti), GFP_KERNEL);
@@ -544,8 +537,8 @@ int kvm_s390_inject_vm(struct kvm *kvm,
int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,
struct kvm_s390_interrupt *s390int)
{
- struct local_interrupt *li;
- struct interrupt_info *inti;
+ struct kvm_s390_local_interrupt *li;
+ struct kvm_s390_interrupt_info *inti;
inti = kzalloc(sizeof(*inti), GFP_KERNEL);
if (!inti)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 6558b09ff57..8b00eb2ddf5 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -39,7 +39,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "exit_instruction", VCPU_STAT(exit_instruction) },
{ "exit_program_interruption", VCPU_STAT(exit_program_interruption) },
{ "exit_instr_and_program_int", VCPU_STAT(exit_instr_and_program) },
- { "instruction_lctg", VCPU_STAT(instruction_lctg) },
+ { "instruction_lctlg", VCPU_STAT(instruction_lctlg) },
{ "instruction_lctl", VCPU_STAT(instruction_lctl) },
{ "deliver_emergency_signal", VCPU_STAT(deliver_emergency_signal) },
{ "deliver_service_signal", VCPU_STAT(deliver_service_signal) },
@@ -79,10 +79,6 @@ void kvm_arch_hardware_disable(void *garbage)
{
}
-void decache_vcpus_on_cpu(int cpu)
-{
-}
-
int kvm_arch_hardware_setup(void)
{
return 0;
@@ -116,7 +112,12 @@ long kvm_arch_dev_ioctl(struct file *filp,
int kvm_dev_ioctl_check_extension(long ext)
{
- return 0;
+ switch (ext) {
+ case KVM_CAP_USER_MEMORY:
+ return 1;
+ default:
+ return 0;
+ }
}
/* Section: vm related */
@@ -198,6 +199,7 @@ out_nokvm:
void kvm_arch_destroy_vm(struct kvm *kvm)
{
debug_unregister(kvm->arch.dbf);
+ kvm_free_physmem(kvm);
free_page((unsigned long)(kvm->arch.sca));
kfree(kvm);
module_put(THIS_MODULE);
@@ -250,11 +252,16 @@ static void kvm_s390_vcpu_initial_reset(struct kvm_vcpu *vcpu)
vcpu->arch.sie_block->gbea = 1;
}
+/* The current code can have up to 256 pages for virtio */
+#define VIRTIODESCSPACE (256ul * 4096ul)
+
int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
{
atomic_set(&vcpu->arch.sie_block->cpuflags, CPUSTAT_ZARCH);
- vcpu->arch.sie_block->gmslm = 0xffffffffffUL;
- vcpu->arch.sie_block->gmsor = 0x000000000000;
+ vcpu->arch.sie_block->gmslm = vcpu->kvm->arch.guest_memsize +
+ vcpu->kvm->arch.guest_origin +
+ VIRTIODESCSPACE - 1ul;
+ vcpu->arch.sie_block->gmsor = vcpu->kvm->arch.guest_origin;
vcpu->arch.sie_block->ecb = 2;
vcpu->arch.sie_block->eca = 0xC1002001U;
setup_timer(&vcpu->arch.ckc_timer, kvm_s390_idle_wakeup,
@@ -273,7 +280,8 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
if (!vcpu)
goto out_nomem;
- vcpu->arch.sie_block = (struct sie_block *) get_zeroed_page(GFP_KERNEL);
+ vcpu->arch.sie_block = (struct kvm_s390_sie_block *)
+ get_zeroed_page(GFP_KERNEL);
if (!vcpu->arch.sie_block)
goto out_free_cpu;
@@ -672,6 +680,10 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
return 0;
}
+void kvm_arch_flush_shadow(struct kvm *kvm)
+{
+}
+
gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
{
return gfn;
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index c02286c6a93..2e2d2ffb6a0 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -199,7 +199,7 @@ out:
static void handle_stsi_3_2_2(struct kvm_vcpu *vcpu, struct sysinfo_3_2_2 *mem)
{
- struct float_interrupt *fi = &vcpu->kvm->arch.float_int;
+ struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
int cpus = 0;
int n;
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 0a236acfb5f..170392687ce 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -43,9 +43,10 @@
#define SIGP_STAT_RECEIVER_CHECK 0x00000001UL
-static int __sigp_sense(struct kvm_vcpu *vcpu, u16 cpu_addr, u64 *reg)
+static int __sigp_sense(struct kvm_vcpu *vcpu, u16 cpu_addr,
+ unsigned long *reg)
{
- struct float_interrupt *fi = &vcpu->kvm->arch.float_int;
+ struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
int rc;
if (cpu_addr >= KVM_MAX_VCPUS)
@@ -71,9 +72,9 @@ static int __sigp_sense(struct kvm_vcpu *vcpu, u16 cpu_addr, u64 *reg)
static int __sigp_emergency(struct kvm_vcpu *vcpu, u16 cpu_addr)
{
- struct float_interrupt *fi = &vcpu->kvm->arch.float_int;
- struct local_interrupt *li;
- struct interrupt_info *inti;
+ struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
+ struct kvm_s390_local_interrupt *li;
+ struct kvm_s390_interrupt_info *inti;
int rc;
if (cpu_addr >= KVM_MAX_VCPUS)
@@ -108,9 +109,9 @@ unlock:
static int __sigp_stop(struct kvm_vcpu *vcpu, u16 cpu_addr, int store)
{
- struct float_interrupt *fi = &vcpu->kvm->arch.float_int;
- struct local_interrupt *li;
- struct interrupt_info *inti;
+ struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
+ struct kvm_s390_local_interrupt *li;
+ struct kvm_s390_interrupt_info *inti;
int rc;
if (cpu_addr >= KVM_MAX_VCPUS)
@@ -167,11 +168,11 @@ static int __sigp_set_arch(struct kvm_vcpu *vcpu, u32 parameter)
}
static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address,
- u64 *reg)
+ unsigned long *reg)
{
- struct float_interrupt *fi = &vcpu->kvm->arch.float_int;
- struct local_interrupt *li;
- struct interrupt_info *inti;
+ struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
+ struct kvm_s390_local_interrupt *li;
+ struct kvm_s390_interrupt_info *inti;
int rc;
u8 tmp;
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index f4b6124fdb7..f28c43d2f61 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -72,7 +72,8 @@ void arch_release_hugepage(struct page *page)
page[1].index = 0;
}
-pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_alloc(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pgdp;
pud_t *pudp;
@@ -119,6 +120,11 @@ int pmd_huge(pmd_t pmd)
return !!(pmd_val(pmd) & _SEGMENT_ENTRY_LARGE);
}
+int pud_huge(pud_t pud)
+{
+ return 0;
+}
+
struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address,
pmd_t *pmdp, int write)
{
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 388cc742005..4993b0f594e 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -42,38 +42,6 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__((__aligned__(PAGE_SIZE)));
char empty_zero_page[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
-void show_mem(void)
-{
- unsigned long i, total = 0, reserved = 0;
- unsigned long shared = 0, cached = 0;
- unsigned long flags;
- struct page *page;
- pg_data_t *pgdat;
-
- printk("Mem-info:\n");
- show_free_areas();
- for_each_online_pgdat(pgdat) {
- pgdat_resize_lock(pgdat, &flags);
- for (i = 0; i < pgdat->node_spanned_pages; i++) {
- if (!pfn_valid(pgdat->node_start_pfn + i))
- continue;
- page = pfn_to_page(pgdat->node_start_pfn + i);
- total++;
- if (PageReserved(page))
- reserved++;
- else if (PageSwapCache(page))
- cached++;
- else if (page_count(page))
- shared += page_count(page) - 1;
- }
- pgdat_resize_unlock(pgdat, &flags);
- }
- printk("%ld pages of RAM\n", total);
- printk("%ld reserved pages\n", reserved);
- printk("%ld pages shared\n", shared);
- printk("%ld pages swap cached\n", cached);
-}
-
/*
* paging_init() sets up the page tables
*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 01:13:51 +0000