diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/Kconfig | 7 | ||||
| -rw-r--r-- | arch/s390/hypfs/inode.c | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/elf.h | 8 | ||||
| -rw-r--r-- | arch/s390/include/asm/statfs.h | 11 | ||||
| -rw-r--r-- | arch/s390/kernel/compat_linux.c | 102 | ||||
| -rw-r--r-- | arch/s390/kernel/compat_linux.h | 4 | ||||
| -rw-r--r-- | arch/s390/kernel/compat_wrapper.S | 12 | ||||
| -rw-r--r-- | arch/s390/kernel/syscalls.S | 4 | ||||
| -rw-r--r-- | arch/s390/kvm/priv.c | 4 |
9 files changed, 23 insertions, 131 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 4c03049..bc581d8 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -565,13 +565,16 @@ config ZFCPDUMP Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this. config S390_GUEST -bool "s390 guest support (EXPERIMENTAL)" +bool "s390 guest support for KVM (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 + Select this option if you want to run the kernel as a guest under + the KVM hypervisor. This will add detection for KVM as well as a + virtio transport. If KVM is detected, the virtio console will be + the default console. endmenu source "net/Kconfig" diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c index 7383781..3631380 100644 --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c @@ -219,7 +219,7 @@ static int hypfs_release(struct inode *inode, struct file *filp) enum { opt_uid, opt_gid, opt_err }; -static match_table_t hypfs_tokens = { +static const match_table_t hypfs_tokens = { {opt_uid, "uid=%u"}, {opt_gid, "gid=%u"}, {opt_err, NULL} diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h index 3cad569..261785a 100644 --- a/arch/s390/include/asm/elf.h +++ b/arch/s390/include/asm/elf.h @@ -166,13 +166,11 @@ extern char elf_platform[]; #define ELF_PLATFORM (elf_platform) #ifndef __s390x__ -#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) +#define SET_PERSONALITY(ex) set_personality(PER_LINUX) #else /* __s390x__ */ -#define SET_PERSONALITY(ex, ibcs2) \ +#define SET_PERSONALITY(ex) \ do { \ - if (ibcs2) \ - set_personality(PER_SVR4); \ - else if (current->personality != PER_LINUX32) \ + if (current->personality != PER_LINUX32) \ set_personality(PER_LINUX); \ if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ set_thread_flag(TIF_31BIT); \ diff --git a/arch/s390/include/asm/statfs.h b/arch/s390/include/asm/statfs.h index 099a455..06cc703 100644 --- a/arch/s390/include/asm/statfs.h +++ b/arch/s390/include/asm/statfs.h @@ -12,19 +12,16 @@ #ifndef __s390x__ #include <asm-generic/statfs.h> #else +/* + * We can't use <asm-generic/statfs.h> because in 64-bit mode + * we mix ints of different sizes in our struct statfs. + */ #ifndef __KERNEL_STRICT_NAMES - #include <linux/types.h> - typedef __kernel_fsid_t fsid_t; - #endif -/* - * This is ugly -- we're already 64-bit clean, so just duplicate the - * definitions. - */ struct statfs { int f_type; int f_bsize; diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c index 98e246d..4646382 100644 --- a/arch/s390/kernel/compat_linux.c +++ b/arch/s390/kernel/compat_linux.c @@ -279,22 +279,6 @@ asmlinkage long sys32_getegid16(void) return high2lowgid(current->egid); } -/* 32-bit timeval and related flotsam. */ - -static inline long get_tv32(struct timeval *o, struct compat_timeval __user *i) -{ - return (!access_ok(VERIFY_READ, o, sizeof(*o)) || - (__get_user(o->tv_sec, &i->tv_sec) || - __get_user(o->tv_usec, &i->tv_usec))); -} - -static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i) -{ - return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) || - (__put_user(i->tv_sec, &o->tv_sec) || - __put_user(i->tv_usec, &o->tv_usec))); -} - /* * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit emulation. * @@ -362,41 +346,6 @@ asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned return sys_ftruncate(fd, (high << 32) | low); } -int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf) -{ - compat_ino_t ino; - int err; - - if (!old_valid_dev(stat->dev) || !old_valid_dev(stat->rdev)) - return -EOVERFLOW; - - ino = stat->ino; - if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino) - return -EOVERFLOW; - - err = put_user(old_encode_dev(stat->dev), &statbuf->st_dev); - err |= put_user(stat->ino, &statbuf->st_ino); - err |= put_user(stat->mode, &statbuf->st_mode); - err |= put_user(stat->nlink, &statbuf->st_nlink); - err |= put_user(high2lowuid(stat->uid), &statbuf->st_uid); - err |= put_user(high2lowgid(stat->gid), &statbuf->st_gid); - err |= put_user(old_encode_dev(stat->rdev), &statbuf->st_rdev); - err |= put_user(stat->size, &statbuf->st_size); - err |= put_user(stat->atime.tv_sec, &statbuf->st_atime); - err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec); - err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime); - err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec); - err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime); - err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec); - err |= put_user(stat->blksize, &statbuf->st_blksize); - err |= put_user(stat->blocks, &statbuf->st_blocks); -/* fixme - err |= put_user(0, &statbuf->__unused4[0]); - err |= put_user(0, &statbuf->__unused4[1]); -*/ - return err; -} - asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval) { @@ -557,57 +506,6 @@ sys32_delete_module(const char __user *name_user, unsigned int flags) #endif /* CONFIG_MODULES */ -/* Translations due to time_t size differences. Which affects all - sorts of things, like timeval and itimerval. */ - -extern struct timezone sys_tz; - -asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz) -{ - if (tv) { - struct timeval ktv; - do_gettimeofday(&ktv); - if (put_tv32(tv, &ktv)) - return -EFAULT; - } - if (tz) { - if (copy_to_user(tz, &sys_tz, sizeof(sys_tz))) - return -EFAULT; - } - return 0; -} - -static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i) -{ - long usec; - - if (!access_ok(VERIFY_READ, i, sizeof(*i))) - return -EFAULT; - if (__get_user(o->tv_sec, &i->tv_sec)) - return -EFAULT; - if (__get_user(usec, &i->tv_usec)) - return -EFAULT; - o->tv_nsec = usec * 1000; - return 0; -} - -asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz) -{ - struct timespec kts; - struct timezone ktz; - - if (tv) { - if (get_ts32(&kts, tv)) - return -EFAULT; - } - if (tz) { - if (copy_from_user(&ktz, tz, sizeof(ktz))) - return -EFAULT; - } - - return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL); -} - asmlinkage long sys32_pread64(unsigned int fd, char __user *ubuf, size_t count, u32 poshi, u32 poslo) { diff --git a/arch/s390/kernel/compat_linux.h b/arch/s390/kernel/compat_linux.h index 05f8516..836a288 100644 --- a/arch/s390/kernel/compat_linux.h +++ b/arch/s390/kernel/compat_linux.h @@ -202,10 +202,6 @@ long sys32_execve(void); long sys32_init_module(void __user *umod, unsigned long len, const char __user *uargs); long sys32_delete_module(const char __user *name_user, unsigned int flags); -long sys32_gettimeofday(struct compat_timeval __user *tv, - struct timezone __user *tz); -long sys32_settimeofday(struct compat_timeval __user *tv, - struct timezone __user *tz); long sys32_pread64(unsigned int fd, char __user *ubuf, size_t count, u32 poshi, u32 poslo); long sys32_pwrite64(unsigned int fd, const char __user *ubuf, diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index ee51ca9..fc2c971 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -332,17 +332,17 @@ compat_sys_getrusage_wrapper: llgtr %r3,%r3 # struct rusage_emu31 * jg compat_sys_getrusage # branch to system call - .globl sys32_gettimeofday_wrapper -sys32_gettimeofday_wrapper: + .globl compat_sys_gettimeofday_wrapper +compat_sys_gettimeofday_wrapper: llgtr %r2,%r2 # struct timeval_emu31 * llgtr %r3,%r3 # struct timezone * - jg sys32_gettimeofday # branch to system call + jg compat_sys_gettimeofday # branch to system call - .globl sys32_settimeofday_wrapper -sys32_settimeofday_wrapper: + .globl compat_sys_settimeofday_wrapper +compat_sys_settimeofday_wrapper: llgtr %r2,%r2 # struct timeval_emu31 * llgtr %r3,%r3 # struct timezone * - jg sys32_settimeofday # branch to system call + jg compat_sys_settimeofday # branch to system call .globl sys32_getgroups16_wrapper sys32_getgroups16_wrapper: diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 3ae3039..2d61787 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -86,8 +86,8 @@ SYSCALL(sys_sethostname,sys_sethostname,sys32_sethostname_wrapper) SYSCALL(sys_setrlimit,sys_setrlimit,compat_sys_setrlimit_wrapper) /* 75 */ SYSCALL(sys_old_getrlimit,sys_getrlimit,compat_sys_old_getrlimit_wrapper) SYSCALL(sys_getrusage,sys_getrusage,compat_sys_getrusage_wrapper) -SYSCALL(sys_gettimeofday,sys_gettimeofday,sys32_gettimeofday_wrapper) -SYSCALL(sys_settimeofday,sys_settimeofday,sys32_settimeofday_wrapper) +SYSCALL(sys_gettimeofday,sys_gettimeofday,compat_sys_gettimeofday_wrapper) +SYSCALL(sys_settimeofday,sys_settimeofday,compat_sys_settimeofday_wrapper) SYSCALL(sys_getgroups16,sys_ni_syscall,sys32_getgroups16_wrapper) /* 80 old getgroups16 syscall */ SYSCALL(sys_setgroups16,sys_ni_syscall,sys32_setgroups16_wrapper) /* old setgroups16 syscall */ NI_SYSCALL /* old select syscall */ diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index d1faf5c..cce40ff 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -157,8 +157,8 @@ static int handle_stfl(struct kvm_vcpu *vcpu) int rc; vcpu->stat.instruction_stfl++; - facility_list &= ~(1UL<<24); /* no stfle */ - facility_list &= ~(1UL<<23); /* no large pages */ + /* only pass the facility bits, which we can handle */ + facility_list &= 0xfe00fff3; rc = copy_to_guest(vcpu, offsetof(struct _lowcore, stfl_fac_list), &facility_list, sizeof(facility_list)); |