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authorLinus Torvalds <torvalds@linux-foundation.org>2022-03-25 10:01:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-25 10:01:34 -0700
commitd710d370c4911e83da5d2bc43d4a2c3b56bd27e7 (patch)
tree9e7a702654feb88e2555c1bf41f71ef4a58b25aa /arch/s390/kernel/os_info.c
parent744465da705f7d8cd893e97738a47b91f3321ce2 (diff)
parentc65f677b62d6180cc174e06f953f7fe860adf6d1 (diff)
downloadlinux-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.c12
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;