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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-25 10:01:34 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-25 10:01:34 -0700 |
commit | d710d370c4911e83da5d2bc43d4a2c3b56bd27e7 (patch) | |
tree | 9e7a702654feb88e2555c1bf41f71ef4a58b25aa /arch/s390/kernel/os_info.c | |
parent | 744465da705f7d8cd893e97738a47b91f3321ce2 (diff) | |
parent | c65f677b62d6180cc174e06f953f7fe860adf6d1 (diff) | |
download | linux-d710d370c4911e83da5d2bc43d4a2c3b56bd27e7.tar.bz2 |
Merge tag 's390-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Vasily Gorbik:
- Raise minimum supported machine generation to z10, which comes with
various cleanups and code simplifications (usercopy/spectre
mitigation/etc).
- Rework extables and get rid of anonymous out-of-line fixups.
- Page table helpers cleanup. Add set_pXd()/set_pte() helper functions.
Covert pte_val()/pXd_val() macros to functions.
- Optimize kretprobe handling by avoiding extra kprobe on
__kretprobe_trampoline.
- Add support for CEX8 crypto cards.
- Allow to trigger AP bus rescan via writing to /sys/bus/ap/scans.
- Add CONFIG_EXPOLINE_EXTERN option to build the kernel without COMDAT
group sections which simplifies kpatch support.
- Always use the packed stack layout and extend kernel unwinder tests.
- Add sanity checks for ftrace code patching.
- Add s390dbf debug log for the vfio_ap device driver.
- Various virtual vs physical address confusion fixes.
- Various small fixes and improvements all over the code.
* tag 's390-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (69 commits)
s390/test_unwind: add kretprobe tests
s390/kprobes: Avoid additional kprobe in kretprobe handling
s390: convert ".insn" encoding to instruction names
s390: assume stckf is always present
s390/nospec: move to single register thunks
s390: raise minimum supported machine generation to z10
s390/uaccess: Add copy_from/to_user_key functions
s390/nospec: align and size extern thunks
s390/nospec: add an option to use thunk-extern
s390/nospec: generate single register thunks if possible
s390/pci: make zpci_set_irq()/zpci_clear_irq() static
s390: remove unused expoline to BC instructions
s390/irq: use assignment instead of cast
s390/traps: get rid of magic cast for per code
s390/traps: get rid of magic cast for program interruption code
s390/signal: fix typo in comments
s390/asm-offsets: remove unused defines
s390/test_unwind: avoid build warning with W=1
s390: remove .fixup section
s390/bpf: encode register within extable entry
...
Diffstat (limited to 'arch/s390/kernel/os_info.c')
-rw-r--r-- | arch/s390/kernel/os_info.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/s390/kernel/os_info.c b/arch/s390/kernel/os_info.c index 4bef35b79b93..6b5b64e67eee 100644 --- a/arch/s390/kernel/os_info.c +++ b/arch/s390/kernel/os_info.c @@ -15,6 +15,7 @@ #include <asm/checksum.h> #include <asm/lowcore.h> #include <asm/os_info.h> +#include <asm/asm-offsets.h> /* * OS info structure has to be page aligned @@ -45,7 +46,7 @@ void os_info_crashkernel_add(unsigned long base, unsigned long size) */ void os_info_entry_add(int nr, void *ptr, u64 size) { - os_info.entry[nr].addr = (u64)(unsigned long)ptr; + os_info.entry[nr].addr = __pa(ptr); os_info.entry[nr].size = size; os_info.entry[nr].csum = (__force u32)csum_partial(ptr, size, 0); os_info.csum = os_info_csum(&os_info); @@ -62,7 +63,7 @@ void __init os_info_init(void) os_info.version_minor = OS_INFO_VERSION_MINOR; os_info.magic = OS_INFO_MAGIC; os_info.csum = os_info_csum(&os_info); - mem_assign_absolute(S390_lowcore.os_info, (unsigned long) ptr); + mem_assign_absolute(S390_lowcore.os_info, __pa(ptr)); } #ifdef CONFIG_CRASH_DUMP @@ -90,7 +91,7 @@ static void os_info_old_alloc(int nr, int align) goto fail; } buf_align = PTR_ALIGN(buf, align); - if (copy_oldmem_kernel(buf_align, (void *) addr, size)) { + if (copy_oldmem_kernel(buf_align, addr, size)) { msg = "copy failed"; goto fail_free; } @@ -123,15 +124,14 @@ static void os_info_old_init(void) return; if (!oldmem_data.start) goto fail; - if (copy_oldmem_kernel(&addr, &S390_lowcore.os_info, sizeof(addr))) + if (copy_oldmem_kernel(&addr, __LC_OS_INFO, sizeof(addr))) goto fail; if (addr == 0 || addr % PAGE_SIZE) goto fail; os_info_old = kzalloc(sizeof(*os_info_old), GFP_KERNEL); if (!os_info_old) goto fail; - if (copy_oldmem_kernel(os_info_old, (void *) addr, - sizeof(*os_info_old))) + if (copy_oldmem_kernel(os_info_old, addr, sizeof(*os_info_old))) goto fail_free; if (os_info_old->magic != OS_INFO_MAGIC) goto fail_free; |