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-rw-r--r--arch/s390/include/asm/compat.h1
-rw-r--r--arch/s390/include/asm/ctl_reg.h4
-rw-r--r--arch/s390/include/asm/dma-mapping.h2
-rw-r--r--arch/s390/include/asm/kexec.h18
-rw-r--r--arch/s390/include/asm/kvm_host.h33
-rw-r--r--arch/s390/include/asm/nmi.h6
-rw-r--r--arch/s390/include/asm/syscall.h6
-rw-r--r--arch/s390/include/asm/uaccess.h17
-rw-r--r--arch/s390/include/uapi/asm/kvm.h12
9 files changed, 48 insertions, 51 deletions
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 0ddd37e6c29d..b9300f8aee10 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -178,7 +178,6 @@ struct compat_statfs64 {
u32 f_spare[4];
};
-#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
#define COMPAT_RLIM_INFINITY 0xffffffff
typedef u32 compat_old_sigset_t; /* at least 32 bits */
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
index d0441ad2a990..e508dff92535 100644
--- a/arch/s390/include/asm/ctl_reg.h
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -59,7 +59,9 @@ union ctlreg0 {
unsigned long lap : 1; /* Low-address-protection control */
unsigned long : 4;
unsigned long edat : 1; /* Enhanced-DAT-enablement control */
- unsigned long : 4;
+ unsigned long : 2;
+ unsigned long iep : 1; /* Instruction-Execution-Protection */
+ unsigned long : 1;
unsigned long afp : 1; /* AFP-register control */
unsigned long vx : 1; /* Vector enablement control */
unsigned long : 7;
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 3108b8dbe266..512ad0eaa11a 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -8,8 +8,6 @@
#include <linux/dma-debug.h>
#include <linux/io.h>
-#define DMA_ERROR_CODE (~(dma_addr_t) 0x0)
-
extern const struct dma_map_ops s390_pci_dma_ops;
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h
index 2f924bc30e35..dccf24ee26d3 100644
--- a/arch/s390/include/asm/kexec.h
+++ b/arch/s390/include/asm/kexec.h
@@ -41,24 +41,6 @@
/* The native architecture */
#define KEXEC_ARCH KEXEC_ARCH_S390
-/*
- * Size for s390x ELF notes per CPU
- *
- * Seven notes plus zero note at the end: prstatus, fpregset, timer,
- * tod_cmp, tod_reg, control regs, and prefix
- */
-#define KEXEC_NOTE_BYTES \
- (ALIGN(sizeof(struct elf_note), 4) * 8 + \
- ALIGN(sizeof("CORE"), 4) * 7 + \
- ALIGN(sizeof(struct elf_prstatus), 4) + \
- ALIGN(sizeof(elf_fpregset_t), 4) + \
- ALIGN(sizeof(u64), 4) + \
- ALIGN(sizeof(u64), 4) + \
- ALIGN(sizeof(u32), 4) + \
- ALIGN(sizeof(u64) * 16, 4) + \
- ALIGN(sizeof(u32), 4) \
- )
-
/* Provide a dummy definition to avoid build failures. */
static inline void crash_setup_regs(struct pt_regs *newregs,
struct pt_regs *oldregs) { }
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 6baae236f461..a409d5991934 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -42,9 +42,11 @@
#define KVM_HALT_POLL_NS_DEFAULT 80000
/* s390-specific vcpu->requests bit members */
-#define KVM_REQ_ENABLE_IBS 8
-#define KVM_REQ_DISABLE_IBS 9
-#define KVM_REQ_ICPT_OPEREXC 10
+#define KVM_REQ_ENABLE_IBS KVM_ARCH_REQ(0)
+#define KVM_REQ_DISABLE_IBS KVM_ARCH_REQ(1)
+#define KVM_REQ_ICPT_OPEREXC KVM_ARCH_REQ(2)
+#define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3)
+#define KVM_REQ_STOP_MIGRATION KVM_ARCH_REQ(4)
#define SIGP_CTRL_C 0x80
#define SIGP_CTRL_SCN_MASK 0x3f
@@ -56,7 +58,7 @@ union bsca_sigp_ctrl {
__u8 r : 1;
__u8 scn : 6;
};
-} __packed;
+};
union esca_sigp_ctrl {
__u16 value;
@@ -65,14 +67,14 @@ union esca_sigp_ctrl {
__u8 reserved: 7;
__u8 scn;
};
-} __packed;
+};
struct esca_entry {
union esca_sigp_ctrl sigp_ctrl;
__u16 reserved1[3];
__u64 sda;
__u64 reserved2[6];
-} __packed;
+};
struct bsca_entry {
__u8 reserved0;
@@ -80,7 +82,7 @@ struct bsca_entry {
__u16 reserved[3];
__u64 sda;
__u64 reserved2[2];
-} __attribute__((packed));
+};
union ipte_control {
unsigned long val;
@@ -97,7 +99,7 @@ struct bsca_block {
__u64 mcn;
__u64 reserved2;
struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS];
-} __attribute__((packed));
+};
struct esca_block {
union ipte_control ipte_control;
@@ -105,7 +107,7 @@ struct esca_block {
__u64 mcn[4];
__u64 reserved2[20];
struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS];
-} __packed;
+};
/*
* This struct is used to store some machine check info from lowcore
@@ -274,7 +276,7 @@ struct kvm_s390_sie_block {
struct kvm_s390_itdb {
__u8 data[256];
-} __packed;
+};
struct sie_page {
struct kvm_s390_sie_block sie_block;
@@ -282,7 +284,7 @@ struct sie_page {
__u8 reserved218[1000]; /* 0x0218 */
struct kvm_s390_itdb itdb; /* 0x0600 */
__u8 reserved700[2304]; /* 0x0700 */
-} __packed;
+};
struct kvm_vcpu_stat {
u64 exit_userspace;
@@ -695,7 +697,7 @@ struct sie_page2 {
__u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */
struct kvm_s390_crypto_cb crycb; /* 0x0800 */
u8 reserved900[0x1000 - 0x900]; /* 0x0900 */
-} __packed;
+};
struct kvm_s390_vsie {
struct mutex mutex;
@@ -705,6 +707,12 @@ struct kvm_s390_vsie {
struct page *pages[KVM_MAX_VCPUS];
};
+struct kvm_s390_migration_state {
+ unsigned long bitmap_size; /* in bits (number of guest pages) */
+ atomic64_t dirty_pages; /* number of dirty pages */
+ unsigned long *pgste_bitmap;
+};
+
struct kvm_arch{
void *sca;
int use_esca;
@@ -732,6 +740,7 @@ struct kvm_arch{
struct kvm_s390_crypto crypto;
struct kvm_s390_vsie vsie;
u64 epoch;
+ struct kvm_s390_migration_state *migration_state;
/* subset of available cpu features enabled by user space */
DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS);
};
diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h
index 13623b9991d4..9d91cf3e427f 100644
--- a/arch/s390/include/asm/nmi.h
+++ b/arch/s390/include/asm/nmi.h
@@ -26,6 +26,12 @@
#define MCCK_CODE_PSW_MWP_VALID _BITUL(63 - 20)
#define MCCK_CODE_PSW_IA_VALID _BITUL(63 - 23)
+#define MCCK_CR14_CR_PENDING_SUB_MASK (1 << 28)
+#define MCCK_CR14_RECOVERY_SUB_MASK (1 << 27)
+#define MCCK_CR14_DEGRAD_SUB_MASK (1 << 26)
+#define MCCK_CR14_EXT_DAMAGE_SUB_MASK (1 << 25)
+#define MCCK_CR14_WARN_SUB_MASK (1 << 24)
+
#ifndef __ASSEMBLY__
union mci {
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
index 6ba0bf928909..6bc941be6921 100644
--- a/arch/s390/include/asm/syscall.h
+++ b/arch/s390/include/asm/syscall.h
@@ -64,6 +64,12 @@ static inline void syscall_get_arguments(struct task_struct *task,
{
unsigned long mask = -1UL;
+ /*
+ * No arguments for this syscall, there's nothing to do.
+ */
+ if (!n)
+ return;
+
BUG_ON(i + n > 6);
#ifdef CONFIG_COMPAT
if (test_tsk_thread_flag(task, TIF_31BIT))
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index 78f3f093d143..28b528197cf5 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -276,23 +276,6 @@ static inline unsigned long strnlen_user(const char __user *src, unsigned long n
return __strnlen_user(src, n);
}
-/**
- * strlen_user: - Get the size of a string in user space.
- * @str: The string to measure.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * Get the size of a NUL-terminated string in user space.
- *
- * Returns the size of the string INCLUDING the terminating NUL.
- * On exception, returns 0.
- *
- * If there is a limit on the length of a valid string, you may wish to
- * consider using strnlen_user() instead.
- */
-#define strlen_user(str) strnlen_user(str, ~0UL)
-
/*
* Zero Userspace
*/
diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h
index 3dd2a1d308dd..69d09c39bbcd 100644
--- a/arch/s390/include/uapi/asm/kvm.h
+++ b/arch/s390/include/uapi/asm/kvm.h
@@ -28,6 +28,7 @@
#define KVM_DEV_FLIC_CLEAR_IO_IRQ 8
#define KVM_DEV_FLIC_AISM 9
#define KVM_DEV_FLIC_AIRQ_INJECT 10
+#define KVM_DEV_FLIC_AISM_ALL 11
/*
* We can have up to 4*64k pending subchannels + 8 adapter interrupts,
* as well as up to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
@@ -53,6 +54,11 @@ struct kvm_s390_ais_req {
__u16 mode;
};
+struct kvm_s390_ais_all {
+ __u8 simm;
+ __u8 nimm;
+};
+
#define KVM_S390_IO_ADAPTER_MASK 1
#define KVM_S390_IO_ADAPTER_MAP 2
#define KVM_S390_IO_ADAPTER_UNMAP 3
@@ -70,6 +76,7 @@ struct kvm_s390_io_adapter_req {
#define KVM_S390_VM_TOD 1
#define KVM_S390_VM_CRYPTO 2
#define KVM_S390_VM_CPU_MODEL 3
+#define KVM_S390_VM_MIGRATION 4
/* kvm attributes for mem_ctrl */
#define KVM_S390_VM_MEM_ENABLE_CMMA 0
@@ -151,6 +158,11 @@ struct kvm_s390_vm_cpu_subfunc {
#define KVM_S390_VM_CRYPTO_DISABLE_AES_KW 2
#define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW 3
+/* kvm attributes for migration mode */
+#define KVM_S390_VM_MIGRATION_STOP 0
+#define KVM_S390_VM_MIGRATION_START 1
+#define KVM_S390_VM_MIGRATION_STATUS 2
+
/* for KVM_GET_REGS and KVM_SET_REGS */
struct kvm_regs {
/* general purpose regs for s390 */