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-rw-r--r--arch/s390/configs/debug_defconfig10
-rw-r--r--arch/s390/configs/defconfig9
-rw-r--r--arch/s390/configs/zfcpdump_defconfig3
-rw-r--r--arch/s390/include/asm/facility.h6
-rw-r--r--arch/s390/include/asm/fpu/api.h2
-rw-r--r--arch/s390/include/asm/kvm_host.h2
-rw-r--r--arch/s390/include/asm/syscall_wrapper.h13
-rw-r--r--arch/s390/kernel/Makefile2
-rw-r--r--arch/s390/kernel/facility.c21
-rw-r--r--arch/s390/kvm/Kconfig5
-rw-r--r--arch/s390/kvm/vsie.c23
-rw-r--r--arch/s390/mm/pgtable.c2
12 files changed, 61 insertions, 37 deletions
diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig
index 438cd92e6080..6de44ede4e14 100644
--- a/arch/s390/configs/debug_defconfig
+++ b/arch/s390/configs/debug_defconfig
@@ -44,8 +44,7 @@ CONFIG_KEXEC_FILE=y
CONFIG_KEXEC_SIG=y
CONFIG_CRASH_DUMP=y
CONFIG_LIVEPATCH=y
-CONFIG_MARCH_ZEC12=y
-CONFIG_TUNE_ZEC12=y
+CONFIG_MARCH_Z13=y
CONFIG_NR_CPUS=512
CONFIG_NUMA=y
CONFIG_HZ_100=y
@@ -76,7 +75,6 @@ CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODULE_UNLOAD_TAINT_TRACKING=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
-CONFIG_MODULE_SIG_SHA256=y
CONFIG_BLK_DEV_THROTTLING=y
CONFIG_BLK_WBT=y
CONFIG_BLK_CGROUP_IOLATENCY=y
@@ -93,6 +91,7 @@ CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BINFMT_MISC=m
CONFIG_ZSWAP=y
+CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD=y
CONFIG_ZSMALLOC_STAT=y
CONFIG_SLUB_STATS=y
# CONFIG_COMPAT_BRK is not set
@@ -619,6 +618,9 @@ CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_BTRFS_DEBUG=y
CONFIG_BTRFS_ASSERT=y
CONFIG_NILFS2_FS=m
+CONFIG_BCACHEFS_FS=y
+CONFIG_BCACHEFS_QUOTA=y
+CONFIG_BCACHEFS_POSIX_ACL=y
CONFIG_FS_DAX=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FS_ENCRYPTION=y
@@ -691,7 +693,6 @@ CONFIG_PERSISTENT_KEYRINGS=y
CONFIG_ENCRYPTED_KEYS=m
CONFIG_KEY_NOTIFICATIONS=y
CONFIG_SECURITY=y
-CONFIG_SECURITY_NETWORK=y
CONFIG_HARDENED_USERCOPY=y
CONFIG_FORTIFY_SOURCE=y
CONFIG_SECURITY_SELINUX=y
@@ -834,7 +835,6 @@ CONFIG_DEBUG_IRQFLAGS=y
CONFIG_DEBUG_LIST=y
CONFIG_DEBUG_SG=y
CONFIG_DEBUG_NOTIFIERS=y
-CONFIG_DEBUG_CREDENTIALS=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_RCU_REF_SCALE_TEST=m
CONFIG_RCU_CPU_STALL_TIMEOUT=300
diff --git a/arch/s390/configs/defconfig b/arch/s390/configs/defconfig
index 1b8150e50f6a..bcae47da6b7c 100644
--- a/arch/s390/configs/defconfig
+++ b/arch/s390/configs/defconfig
@@ -42,8 +42,7 @@ CONFIG_KEXEC_FILE=y
CONFIG_KEXEC_SIG=y
CONFIG_CRASH_DUMP=y
CONFIG_LIVEPATCH=y
-CONFIG_MARCH_ZEC12=y
-CONFIG_TUNE_ZEC12=y
+CONFIG_MARCH_Z13=y
CONFIG_NR_CPUS=512
CONFIG_NUMA=y
CONFIG_HZ_100=y
@@ -71,7 +70,6 @@ CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODULE_UNLOAD_TAINT_TRACKING=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
-CONFIG_MODULE_SIG_SHA256=y
CONFIG_BLK_DEV_THROTTLING=y
CONFIG_BLK_WBT=y
CONFIG_BLK_CGROUP_IOLATENCY=y
@@ -88,6 +86,7 @@ CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BINFMT_MISC=m
CONFIG_ZSWAP=y
+CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD=y
CONFIG_ZSMALLOC_STAT=y
# CONFIG_COMPAT_BRK is not set
CONFIG_MEMORY_HOTPLUG=y
@@ -605,6 +604,9 @@ CONFIG_OCFS2_FS=m
CONFIG_BTRFS_FS=y
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_NILFS2_FS=m
+CONFIG_BCACHEFS_FS=m
+CONFIG_BCACHEFS_QUOTA=y
+CONFIG_BCACHEFS_POSIX_ACL=y
CONFIG_FS_DAX=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FS_ENCRYPTION=y
@@ -677,7 +679,6 @@ CONFIG_PERSISTENT_KEYRINGS=y
CONFIG_ENCRYPTED_KEYS=m
CONFIG_KEY_NOTIFICATIONS=y
CONFIG_SECURITY=y
-CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_LOCKDOWN_LSM=y
diff --git a/arch/s390/configs/zfcpdump_defconfig b/arch/s390/configs/zfcpdump_defconfig
index b831083b4edd..47028450eee1 100644
--- a/arch/s390/configs/zfcpdump_defconfig
+++ b/arch/s390/configs/zfcpdump_defconfig
@@ -9,8 +9,7 @@ CONFIG_BPF_SYSCALL=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_CRASH_DUMP=y
-CONFIG_MARCH_ZEC12=y
-CONFIG_TUNE_ZEC12=y
+CONFIG_MARCH_Z13=y
# CONFIG_COMPAT is not set
CONFIG_NR_CPUS=2
CONFIG_HZ_100=y
diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h
index 94b6919026df..796007125dff 100644
--- a/arch/s390/include/asm/facility.h
+++ b/arch/s390/include/asm/facility.h
@@ -111,4 +111,10 @@ static inline void stfle(u64 *stfle_fac_list, int size)
preempt_enable();
}
+/**
+ * stfle_size - Actual size of the facility list as specified by stfle
+ * (number of double words)
+ */
+unsigned int stfle_size(void);
+
#endif /* __ASM_FACILITY_H */
diff --git a/arch/s390/include/asm/fpu/api.h b/arch/s390/include/asm/fpu/api.h
index b714ed0ef688..9acf48e53a87 100644
--- a/arch/s390/include/asm/fpu/api.h
+++ b/arch/s390/include/asm/fpu/api.h
@@ -79,7 +79,7 @@ static inline int test_fp_ctl(u32 fpc)
#define KERNEL_VXR_HIGH (KERNEL_VXR_V16V23|KERNEL_VXR_V24V31)
#define KERNEL_VXR (KERNEL_VXR_LOW|KERNEL_VXR_HIGH)
-#define KERNEL_FPR (KERNEL_FPC|KERNEL_VXR_V0V7)
+#define KERNEL_FPR (KERNEL_FPC|KERNEL_VXR_LOW)
struct kernel_fpu;
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 67a298b6cf6e..52664105a473 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -818,7 +818,7 @@ struct s390_io_adapter {
struct kvm_s390_cpu_model {
/* facility mask supported by kvm & hosting machine */
- __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64];
+ __u64 fac_mask[S390_ARCH_FAC_MASK_SIZE_U64];
struct kvm_s390_vm_cpu_subfunc subfuncs;
/* facility list requested by guest (in dma page) */
__u64 *fac_list;
diff --git a/arch/s390/include/asm/syscall_wrapper.h b/arch/s390/include/asm/syscall_wrapper.h
index 9286430fe729..35c1d1b860d8 100644
--- a/arch/s390/include/asm/syscall_wrapper.h
+++ b/arch/s390/include/asm/syscall_wrapper.h
@@ -63,10 +63,6 @@
cond_syscall(__s390x_sys_##name); \
cond_syscall(__s390_sys_##name)
-#define SYS_NI(name) \
- SYSCALL_ALIAS(__s390x_sys_##name, sys_ni_posix_timers); \
- SYSCALL_ALIAS(__s390_sys_##name, sys_ni_posix_timers)
-
#define COMPAT_SYSCALL_DEFINEx(x, name, ...) \
long __s390_compat_sys##name(struct pt_regs *regs); \
ALLOW_ERROR_INJECTION(__s390_compat_sys##name, ERRNO); \
@@ -85,15 +81,11 @@
/*
* As some compat syscalls may not be implemented, we need to expand
- * COND_SYSCALL_COMPAT in kernel/sys_ni.c and COMPAT_SYS_NI in
- * kernel/time/posix-stubs.c to cover this case as well.
+ * COND_SYSCALL_COMPAT in kernel/sys_ni.c to cover this case as well.
*/
#define COND_SYSCALL_COMPAT(name) \
cond_syscall(__s390_compat_sys_##name)
-#define COMPAT_SYS_NI(name) \
- SYSCALL_ALIAS(__s390_compat_sys_##name, sys_ni_posix_timers)
-
#define __S390_SYS_STUBx(x, name, ...) \
long __s390_sys##name(struct pt_regs *regs); \
ALLOW_ERROR_INJECTION(__s390_sys##name, ERRNO); \
@@ -124,9 +116,6 @@
#define COND_SYSCALL(name) \
cond_syscall(__s390x_sys_##name)
-#define SYS_NI(name) \
- SYSCALL_ALIAS(__s390x_sys_##name, sys_ni_posix_timers)
-
#define __S390_SYS_STUBx(x, fullname, name, ...)
#endif /* CONFIG_COMPAT */
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index 353def93973b..7a562b4199c8 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -41,7 +41,7 @@ obj-y += sysinfo.o lgr.o os_info.o ctlreg.o
obj-y += runtime_instr.o cache.o fpu.o dumpstack.o guarded_storage.o sthyi.o
obj-y += entry.o reipl.o kdebugfs.o alternative.o
obj-y += nospec-branch.o ipl_vmparm.o machine_kexec_reloc.o unwind_bc.o
-obj-y += smp.o text_amode31.o stacktrace.o abs_lowcore.o
+obj-y += smp.o text_amode31.o stacktrace.o abs_lowcore.o facility.o
extra-y += vmlinux.lds
diff --git a/arch/s390/kernel/facility.c b/arch/s390/kernel/facility.c
new file mode 100644
index 000000000000..f02127219a27
--- /dev/null
+++ b/arch/s390/kernel/facility.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright IBM Corp. 2023
+ */
+
+#include <asm/facility.h>
+
+unsigned int stfle_size(void)
+{
+ static unsigned int size;
+ unsigned int r;
+ u64 dummy;
+
+ r = READ_ONCE(size);
+ if (!r) {
+ r = __stfle_asm(&dummy, 1) + 1;
+ WRITE_ONCE(size, r);
+ }
+ return r;
+}
+EXPORT_SYMBOL(stfle_size);
diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig
index 45fdf2a9b2e3..72e9b7dcdf7d 100644
--- a/arch/s390/kvm/Kconfig
+++ b/arch/s390/kvm/Kconfig
@@ -20,19 +20,16 @@ config KVM
def_tristate y
prompt "Kernel-based Virtual Machine (KVM) support"
depends on HAVE_KVM
- select PREEMPT_NOTIFIERS
select HAVE_KVM_CPU_RELAX_INTERCEPT
select HAVE_KVM_VCPU_ASYNC_IOCTL
- select HAVE_KVM_EVENTFD
select KVM_ASYNC_PF
select KVM_ASYNC_PF_SYNC
+ select KVM_COMMON
select HAVE_KVM_IRQCHIP
- select HAVE_KVM_IRQFD
select HAVE_KVM_IRQ_ROUTING
select HAVE_KVM_INVALID_WAKEUPS
select HAVE_KVM_NO_POLL
select KVM_VFIO
- select INTERVAL_TREE
select MMU_NOTIFIER
help
Support hosting paravirtualized guest machines using the SIE
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index 02dcbe82a8e5..fef42e2a80a2 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -19,6 +19,7 @@
#include <asm/nmi.h>
#include <asm/dis.h>
#include <asm/fpu/api.h>
+#include <asm/facility.h>
#include "kvm-s390.h"
#include "gaccess.h"
@@ -587,10 +588,6 @@ void kvm_s390_vsie_gmap_notifier(struct gmap *gmap, unsigned long start,
if (!gmap_is_shadow(gmap))
return;
- if (start >= 1UL << 31)
- /* We are only interested in prefix pages */
- return;
-
/*
* Only new shadow blocks are added to the list during runtime,
* therefore we can safely reference them all the time.
@@ -988,12 +985,26 @@ static void retry_vsie_icpt(struct vsie_page *vsie_page)
static int handle_stfle(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
{
struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s;
- __u32 fac = READ_ONCE(vsie_page->scb_o->fac) & 0x7ffffff8U;
+ __u32 fac = READ_ONCE(vsie_page->scb_o->fac);
+ /*
+ * Alternate-STFLE-Interpretive-Execution facilities are not supported
+ * -> format-0 flcb
+ */
if (fac && test_kvm_facility(vcpu->kvm, 7)) {
retry_vsie_icpt(vsie_page);
+ /*
+ * The facility list origin (FLO) is in bits 1 - 28 of the FLD
+ * so we need to mask here before reading.
+ */
+ fac = fac & 0x7ffffff8U;
+ /*
+ * format-0 -> size of nested guest's facility list == guest's size
+ * guest's size == host's size, since STFLE is interpretatively executed
+ * using a format-0 for the guest, too.
+ */
if (read_guest_real(vcpu, fac, &vsie_page->fac,
- sizeof(vsie_page->fac)))
+ stfle_size() * sizeof(u64)))
return set_validity_icpt(scb_s, 0x1090U);
scb_s->fac = (__u32)(__u64) &vsie_page->fac;
}
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 3bd2ab2a9a34..5cb92941540b 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -756,7 +756,7 @@ void ptep_zap_unused(struct mm_struct *mm, unsigned long addr,
pte_clear(mm, addr, ptep);
}
if (reset)
- pgste_val(pgste) &= ~_PGSTE_GPS_USAGE_MASK;
+ pgste_val(pgste) &= ~(_PGSTE_GPS_USAGE_MASK | _PGSTE_GPS_NODAT);
pgste_set_unlock(ptep, pgste);
preempt_enable();
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-10-04 20:02:20 +0300