diff options
| -rw-r--r-- | kexec/arch/arm64/kexec-arm64.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/kexec/arch/arm64/kexec-arm64.c b/kexec/arch/arm64/kexec-arm64.c index e502be0..9dd072c 100644 --- a/kexec/arch/arm64/kexec-arm64.c +++ b/kexec/arch/arm64/kexec-arm64.c @@ -942,13 +942,25 @@ out: int get_page_offset(unsigned long *page_offset) { + unsigned long long text_sym_addr, kernel_va_mid; int ret; + text_sym_addr = get_kernel_sym("_text"); + if (text_sym_addr == 0) { + fprintf(stderr, "Can't get the symbol of _text to calculate page_offset.\n"); + return -1; + } + ret = get_va_bits(); if (ret < 0) return ret; - if (va_bits < 52) + /* Since kernel 5.4, kernel image is put above + * UINT64_MAX << (va_bits - 1) + */ + kernel_va_mid = UINT64_MAX << (va_bits - 1); + /* older kernel */ + if (text_sym_addr < kernel_va_mid) *page_offset = UINT64_MAX << (va_bits - 1); else *page_offset = UINT64_MAX << va_bits; |