summaryrefslogtreecommitdiff
path: root/arch/s390
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/Kconfig7
-rw-r--r--arch/s390/Makefile2
-rw-r--r--arch/s390/boot/Makefile3
-rw-r--r--arch/s390/boot/startup.c3
-rw-r--r--arch/s390/configs/btf.config1
-rw-r--r--arch/s390/configs/debug_defconfig65
-rw-r--r--arch/s390/configs/defconfig67
-rw-r--r--arch/s390/configs/kasan.config3
-rw-r--r--arch/s390/configs/zfcpdump_defconfig1
-rw-r--r--arch/s390/include/asm/pgtable.h1
-rw-r--r--arch/s390/include/asm/processor.h11
-rw-r--r--arch/s390/kernel/crash_dump.c2
-rw-r--r--arch/s390/kvm/kvm-s390.c26
-rw-r--r--arch/s390/kvm/kvm-s390.h1
-rw-r--r--arch/s390/kvm/pci.c2
-rw-r--r--arch/s390/kvm/vsie.c4
16 files changed, 108 insertions, 91 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 318fce77601d..48a11deb502c 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -73,6 +73,7 @@ config S390
select ARCH_HAS_GIGANTIC_PAGE
select ARCH_HAS_KCOV
select ARCH_HAS_MEM_ENCRYPT
+ select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS
select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_SCALED_CPUTIME
select ARCH_HAS_SET_MEMORY
@@ -568,8 +569,7 @@ config EXPOLINE_FULL
endchoice
config RELOCATABLE
- bool "Build a relocatable kernel"
- default y
+ def_bool y
help
This builds a kernel image that retains relocation information
so it can be loaded at an arbitrary address.
@@ -578,10 +578,11 @@ config RELOCATABLE
bootup process.
The relocations make the kernel image about 15% larger (compressed
10%), but are discarded at runtime.
+ Note: this option exists only for documentation purposes, please do
+ not remove it.
config RANDOMIZE_BASE
bool "Randomize the address of the kernel image (KASLR)"
- depends on RELOCATABLE
default y
help
In support of Kernel Address Space Layout Randomization (KASLR),
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index de6d8b2ea4d8..b3235ab0ace8 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -14,10 +14,8 @@ KBUILD_AFLAGS_MODULE += -fPIC
KBUILD_CFLAGS_MODULE += -fPIC
KBUILD_AFLAGS += -m64
KBUILD_CFLAGS += -m64
-ifeq ($(CONFIG_RELOCATABLE),y)
KBUILD_CFLAGS += -fPIE
LDFLAGS_vmlinux := -pie
-endif
aflags_dwarf := -Wa,-gdwarf-2
KBUILD_AFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -D__ASSEMBLY__
ifndef CONFIG_AS_IS_LLVM
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index 883357a211a3..d52c3e2e16bc 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -37,9 +37,8 @@ CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
obj-y := head.o als.o startup.o mem_detect.o ipl_parm.o ipl_report.o
obj-y += string.o ebcdic.o sclp_early_core.o mem.o ipl_vmparm.o cmdline.o
-obj-y += version.o pgm_check_info.o ctype.o ipl_data.o
+obj-y += version.o pgm_check_info.o ctype.o ipl_data.o machine_kexec_reloc.o
obj-$(findstring y, $(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) $(CONFIG_PGSTE)) += uv.o
-obj-$(CONFIG_RELOCATABLE) += machine_kexec_reloc.o
obj-$(CONFIG_RANDOMIZE_BASE) += kaslr.o
obj-y += $(if $(CONFIG_KERNEL_UNCOMPRESSED),,decompressor.o) info.o
obj-$(CONFIG_KERNEL_ZSTD) += clz_ctz.o
diff --git a/arch/s390/boot/startup.c b/arch/s390/boot/startup.c
index 6e7f01ca53e6..47ca3264c023 100644
--- a/arch/s390/boot/startup.c
+++ b/arch/s390/boot/startup.c
@@ -291,8 +291,7 @@ void startup_kernel(void)
clear_bss_section();
copy_bootdata();
- if (IS_ENABLED(CONFIG_RELOCATABLE))
- handle_relocs(__kaslr_offset);
+ handle_relocs(__kaslr_offset);
if (__kaslr_offset) {
/*
diff --git a/arch/s390/configs/btf.config b/arch/s390/configs/btf.config
new file mode 100644
index 000000000000..39227b4511af
--- /dev/null
+++ b/arch/s390/configs/btf.config
@@ -0,0 +1 @@
+CONFIG_DEBUG_INFO_BTF=y
diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig
index 2a827002934b..63807bd0b536 100644
--- a/arch/s390/configs/debug_defconfig
+++ b/arch/s390/configs/debug_defconfig
@@ -723,52 +723,42 @@ CONFIG_CRYPTO_ECDSA=m
CONFIG_CRYPTO_ECRDSA=m
CONFIG_CRYPTO_SM2=m
CONFIG_CRYPTO_CURVE25519=m
-CONFIG_CRYPTO_GCM=y
-CONFIG_CRYPTO_CHACHA20POLY1305=m
-CONFIG_CRYPTO_AEGIS128=m
-CONFIG_CRYPTO_SEQIV=y
-CONFIG_CRYPTO_CFB=m
-CONFIG_CRYPTO_LRW=m
-CONFIG_CRYPTO_PCBC=m
-CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_ADIANTUM=m
-CONFIG_CRYPTO_HCTR2=m
-CONFIG_CRYPTO_XCBC=m
-CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_CRC32=m
-CONFIG_CRYPTO_CRC32_S390=y
-CONFIG_CRYPTO_MD4=m
-CONFIG_CRYPTO_MD5=y
-CONFIG_CRYPTO_MICHAEL_MIC=m
-CONFIG_CRYPTO_RMD160=m
-CONFIG_CRYPTO_SHA512_S390=m
-CONFIG_CRYPTO_SHA1_S390=m
-CONFIG_CRYPTO_SHA256_S390=m
-CONFIG_CRYPTO_SHA3=m
-CONFIG_CRYPTO_SHA3_256_S390=m
-CONFIG_CRYPTO_SHA3_512_S390=m
-CONFIG_CRYPTO_SM3_GENERIC=m
-CONFIG_CRYPTO_WP512=m
-CONFIG_CRYPTO_GHASH_S390=m
CONFIG_CRYPTO_AES_TI=m
-CONFIG_CRYPTO_AES_S390=m
CONFIG_CRYPTO_ANUBIS=m
-CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
-CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
-CONFIG_CRYPTO_CHACHA_S390=m
CONFIG_CRYPTO_SEED=m
-CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_ADIANTUM=m
+CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_CFB=m
+CONFIG_CRYPTO_HCTR2=m
+CONFIG_CRYPTO_KEYWRAP=m
+CONFIG_CRYPTO_LRW=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_AEGIS128=m
+CONFIG_CRYPTO_CHACHA20POLY1305=m
+CONFIG_CRYPTO_GCM=y
+CONFIG_CRYPTO_SEQIV=y
+CONFIG_CRYPTO_MD4=m
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_RMD160=m
+CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3_GENERIC=m
+CONFIG_CRYPTO_VMAC=m
+CONFIG_CRYPTO_WP512=m
+CONFIG_CRYPTO_XCBC=m
+CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_842=m
CONFIG_CRYPTO_LZ4=m
CONFIG_CRYPTO_LZ4HC=m
@@ -779,6 +769,16 @@ CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_STATS=y
+CONFIG_CRYPTO_CRC32_S390=y
+CONFIG_CRYPTO_SHA512_S390=m
+CONFIG_CRYPTO_SHA1_S390=m
+CONFIG_CRYPTO_SHA256_S390=m
+CONFIG_CRYPTO_SHA3_256_S390=m
+CONFIG_CRYPTO_SHA3_512_S390=m
+CONFIG_CRYPTO_GHASH_S390=m
+CONFIG_CRYPTO_AES_S390=m
+CONFIG_CRYPTO_DES_S390=m
+CONFIG_CRYPTO_CHACHA_S390=m
CONFIG_ZCRYPT=m
CONFIG_PKEY=m
CONFIG_CRYPTO_PAES_S390=m
@@ -797,7 +797,6 @@ CONFIG_CMA_SIZE_MBYTES=0
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO_DWARF4=y
-CONFIG_DEBUG_INFO_BTF=y
CONFIG_GDB_SCRIPTS=y
CONFIG_HEADERS_INSTALL=y
CONFIG_DEBUG_SECTION_MISMATCH=y
diff --git a/arch/s390/configs/defconfig b/arch/s390/configs/defconfig
index fb780e80e4c8..4f9a98247442 100644
--- a/arch/s390/configs/defconfig
+++ b/arch/s390/configs/defconfig
@@ -707,53 +707,43 @@ CONFIG_CRYPTO_ECDSA=m
CONFIG_CRYPTO_ECRDSA=m
CONFIG_CRYPTO_SM2=m
CONFIG_CRYPTO_CURVE25519=m
-CONFIG_CRYPTO_GCM=y
-CONFIG_CRYPTO_CHACHA20POLY1305=m
-CONFIG_CRYPTO_AEGIS128=m
-CONFIG_CRYPTO_SEQIV=y
-CONFIG_CRYPTO_CFB=m
-CONFIG_CRYPTO_LRW=m
-CONFIG_CRYPTO_OFB=m
-CONFIG_CRYPTO_PCBC=m
-CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_ADIANTUM=m
-CONFIG_CRYPTO_HCTR2=m
-CONFIG_CRYPTO_XCBC=m
-CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_CRC32=m
-CONFIG_CRYPTO_CRC32_S390=y
-CONFIG_CRYPTO_MD4=m
-CONFIG_CRYPTO_MD5=y
-CONFIG_CRYPTO_MICHAEL_MIC=m
-CONFIG_CRYPTO_RMD160=m
-CONFIG_CRYPTO_SHA512_S390=m
-CONFIG_CRYPTO_SHA1_S390=m
-CONFIG_CRYPTO_SHA256_S390=m
-CONFIG_CRYPTO_SHA3=m
-CONFIG_CRYPTO_SHA3_256_S390=m
-CONFIG_CRYPTO_SHA3_512_S390=m
-CONFIG_CRYPTO_SM3_GENERIC=m
-CONFIG_CRYPTO_WP512=m
-CONFIG_CRYPTO_GHASH_S390=m
CONFIG_CRYPTO_AES_TI=m
-CONFIG_CRYPTO_AES_S390=m
CONFIG_CRYPTO_ANUBIS=m
-CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
-CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
-CONFIG_CRYPTO_CHACHA_S390=m
CONFIG_CRYPTO_SEED=m
-CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_ADIANTUM=m
+CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_CFB=m
+CONFIG_CRYPTO_HCTR2=m
+CONFIG_CRYPTO_KEYWRAP=m
+CONFIG_CRYPTO_LRW=m
+CONFIG_CRYPTO_OFB=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_AEGIS128=m
+CONFIG_CRYPTO_CHACHA20POLY1305=m
+CONFIG_CRYPTO_GCM=y
+CONFIG_CRYPTO_SEQIV=y
+CONFIG_CRYPTO_MD4=m
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_RMD160=m
+CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3_GENERIC=m
+CONFIG_CRYPTO_VMAC=m
+CONFIG_CRYPTO_WP512=m
+CONFIG_CRYPTO_XCBC=m
+CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_842=m
CONFIG_CRYPTO_LZ4=m
CONFIG_CRYPTO_LZ4HC=m
@@ -764,6 +754,16 @@ CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_STATS=y
+CONFIG_CRYPTO_CRC32_S390=y
+CONFIG_CRYPTO_SHA512_S390=m
+CONFIG_CRYPTO_SHA1_S390=m
+CONFIG_CRYPTO_SHA256_S390=m
+CONFIG_CRYPTO_SHA3_256_S390=m
+CONFIG_CRYPTO_SHA3_512_S390=m
+CONFIG_CRYPTO_GHASH_S390=m
+CONFIG_CRYPTO_AES_S390=m
+CONFIG_CRYPTO_DES_S390=m
+CONFIG_CRYPTO_CHACHA_S390=m
CONFIG_ZCRYPT=m
CONFIG_PKEY=m
CONFIG_CRYPTO_PAES_S390=m
@@ -781,7 +781,6 @@ CONFIG_CMA_SIZE_MBYTES=0
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO_DWARF4=y
-CONFIG_DEBUG_INFO_BTF=y
CONFIG_GDB_SCRIPTS=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_MAGIC_SYSRQ=y
diff --git a/arch/s390/configs/kasan.config b/arch/s390/configs/kasan.config
new file mode 100644
index 000000000000..700a8b25c3ff
--- /dev/null
+++ b/arch/s390/configs/kasan.config
@@ -0,0 +1,3 @@
+CONFIG_KASAN=y
+CONFIG_KASAN_INLINE=y
+CONFIG_KASAN_VMALLOC=y
diff --git a/arch/s390/configs/zfcpdump_defconfig b/arch/s390/configs/zfcpdump_defconfig
index a5576b8d4081..5fe9948be644 100644
--- a/arch/s390/configs/zfcpdump_defconfig
+++ b/arch/s390/configs/zfcpdump_defconfig
@@ -74,7 +74,6 @@ CONFIG_PRINTK_TIME=y
# CONFIG_SYMBOLIC_ERRNAME is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO_DWARF4=y
-CONFIG_DEBUG_INFO_BTF=y
CONFIG_DEBUG_FS=y
CONFIG_PANIC_ON_OOPS=y
# CONFIG_SCHED_DEBUG is not set
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index f1cb9391190d..11e901286414 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -763,6 +763,7 @@ static inline int pmd_dirty(pmd_t pmd)
return (pmd_val(pmd) & _SEGMENT_ENTRY_DIRTY) != 0;
}
+#define pmd_young pmd_young
static inline int pmd_young(pmd_t pmd)
{
return (pmd_val(pmd) & _SEGMENT_ENTRY_YOUNG) != 0;
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 87be3e855bf7..c907f747d2a0 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -199,7 +199,16 @@ unsigned long __get_wchan(struct task_struct *p);
/* Has task runtime instrumentation enabled ? */
#define is_ri_task(tsk) (!!(tsk)->thread.ri_cb)
-register unsigned long current_stack_pointer asm("r15");
+/* avoid using global register due to gcc bug in versions < 8.4 */
+#define current_stack_pointer (__current_stack_pointer())
+
+static __always_inline unsigned long __current_stack_pointer(void)
+{
+ unsigned long sp;
+
+ asm volatile("lgr %0,15" : "=d" (sp));
+ return sp;
+}
static __always_inline unsigned short stap(void)
{
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index dd74fe664ed1..e4ef67e4da0a 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -46,7 +46,7 @@ struct save_area {
u64 fprs[16];
u32 fpc;
u32 prefix;
- u64 todpreg;
+ u32 todpreg;
u64 timer;
u64 todcmp;
u64 vxrs_low[16];
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 45d4b8182b07..bc491a73815c 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -1207,6 +1207,8 @@ static int kvm_s390_vm_get_migration(struct kvm *kvm,
return 0;
}
+static void __kvm_s390_set_tod_clock(struct kvm *kvm, const struct kvm_s390_vm_tod_clock *gtod);
+
static int kvm_s390_set_tod_ext(struct kvm *kvm, struct kvm_device_attr *attr)
{
struct kvm_s390_vm_tod_clock gtod;
@@ -1216,7 +1218,7 @@ static int kvm_s390_set_tod_ext(struct kvm *kvm, struct kvm_device_attr *attr)
if (!test_kvm_facility(kvm, 139) && gtod.epoch_idx)
return -EINVAL;
- kvm_s390_set_tod_clock(kvm, &gtod);
+ __kvm_s390_set_tod_clock(kvm, &gtod);
VM_EVENT(kvm, 3, "SET: TOD extension: 0x%x, TOD base: 0x%llx",
gtod.epoch_idx, gtod.tod);
@@ -1247,7 +1249,7 @@ static int kvm_s390_set_tod_low(struct kvm *kvm, struct kvm_device_attr *attr)
sizeof(gtod.tod)))
return -EFAULT;
- kvm_s390_set_tod_clock(kvm, &gtod);
+ __kvm_s390_set_tod_clock(kvm, &gtod);
VM_EVENT(kvm, 3, "SET: TOD base: 0x%llx", gtod.tod);
return 0;
}
@@ -1259,6 +1261,16 @@ static int kvm_s390_set_tod(struct kvm *kvm, struct kvm_device_attr *attr)
if (attr->flags)
return -EINVAL;
+ mutex_lock(&kvm->lock);
+ /*
+ * For protected guests, the TOD is managed by the ultravisor, so trying
+ * to change it will never bring the expected results.
+ */
+ if (kvm_s390_pv_is_protected(kvm)) {
+ ret = -EOPNOTSUPP;
+ goto out_unlock;
+ }
+
switch (attr->attr) {
case KVM_S390_VM_TOD_EXT:
ret = kvm_s390_set_tod_ext(kvm, attr);
@@ -1273,6 +1285,9 @@ static int kvm_s390_set_tod(struct kvm *kvm, struct kvm_device_attr *attr)
ret = -ENXIO;
break;
}
+
+out_unlock:
+ mutex_unlock(&kvm->lock);
return ret;
}
@@ -4377,13 +4392,6 @@ static void __kvm_s390_set_tod_clock(struct kvm *kvm, const struct kvm_s390_vm_t
preempt_enable();
}
-void kvm_s390_set_tod_clock(struct kvm *kvm, const struct kvm_s390_vm_tod_clock *gtod)
-{
- mutex_lock(&kvm->lock);
- __kvm_s390_set_tod_clock(kvm, gtod);
- mutex_unlock(&kvm->lock);
-}
-
int kvm_s390_try_set_tod_clock(struct kvm *kvm, const struct kvm_s390_vm_tod_clock *gtod)
{
if (!mutex_trylock(&kvm->lock))
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index f6fd668f887e..4755492dfabc 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -363,7 +363,6 @@ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu);
int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu);
/* implemented in kvm-s390.c */
-void kvm_s390_set_tod_clock(struct kvm *kvm, const struct kvm_s390_vm_tod_clock *gtod);
int kvm_s390_try_set_tod_clock(struct kvm *kvm, const struct kvm_s390_vm_tod_clock *gtod);
long kvm_arch_fault_in_page(struct kvm_vcpu *vcpu, gpa_t gpa, int writable);
int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long addr);
diff --git a/arch/s390/kvm/pci.c b/arch/s390/kvm/pci.c
index c50c1645c0ae..ded1af2ddae9 100644
--- a/arch/s390/kvm/pci.c
+++ b/arch/s390/kvm/pci.c
@@ -126,7 +126,7 @@ int kvm_s390_pci_aen_init(u8 nisc)
return -EPERM;
mutex_lock(&aift->aift_lock);
- aift->kzdev = kcalloc(ZPCI_NR_DEVICES, sizeof(struct kvm_zdev),
+ aift->kzdev = kcalloc(ZPCI_NR_DEVICES, sizeof(struct kvm_zdev *),
GFP_KERNEL);
if (!aift->kzdev) {
rc = -ENOMEM;
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index 94138f8f0c1c..ace2541ababd 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -546,8 +546,10 @@ static int shadow_scb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_CEI))
scb_s->eca |= scb_o->eca & ECA_CEI;
/* Epoch Extension */
- if (test_kvm_facility(vcpu->kvm, 139))
+ if (test_kvm_facility(vcpu->kvm, 139)) {
scb_s->ecd |= scb_o->ecd & ECD_MEF;
+ scb_s->epdx = scb_o->epdx;
+ }
/* etoken */
if (test_kvm_facility(vcpu->kvm, 156))
generated by cgit (git 2.34.1) at 2025-04-17 03:39:34 +0000