diff options
| author | Kurban Mallachiev | 2019-02-07 14:19:45 +0300 |
|---|---|---|
| committer | Tom Rini | 2019-02-19 08:55:43 -0500 |
| commit | 957f51e86367e14be9e40cfe5cc3a494fc17abcf (patch) | |
| tree | 048c49cbee2c09a6d8230e5889e3b17264557930 /cmd/elf.c | |
| parent | eaba7df7041ebdd6cff3702d87d6bdb6870ec5e3 (diff) | |
elf: fix cache flushing in 'bootelf -p' command
Currently there are two problems in 'bootelf -p' (load elf by segments)
command:
- bss section is not flushed, so booted elf can have non zero values
in bss;
- at least on ARM there are 'CACHE: Misaligned operation at
range...' warnings
Use p_memsz instead of p_filesz during cache flushing for elf segment.
p_filesz doesn't include zero initialized memory (e.g. bss section),
which also should be flushed.
Align these cache flushes to line boundaries.
Signed-off-by: Kurban Mallachiev <mallachiev@ispras.ru>
Diffstat (limited to 'cmd/elf.c')
| -rw-r--r-- | cmd/elf.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/cmd/elf.c b/cmd/elf.c index 7bad1f80d42..d883be41931 100644 --- a/cmd/elf.c +++ b/cmd/elf.c @@ -53,7 +53,8 @@ static unsigned long load_elf64_image_phdr(unsigned long addr) if (phdr->p_filesz != phdr->p_memsz) memset(dst + phdr->p_filesz, 0x00, phdr->p_memsz - phdr->p_filesz); - flush_cache((unsigned long)dst, phdr->p_filesz); + flush_cache(rounddown((unsigned long)dst, ARCH_DMA_MINALIGN), + roundup(phdr->p_memsz, ARCH_DMA_MINALIGN)); ++phdr; } @@ -167,7 +168,8 @@ static unsigned long load_elf_image_phdr(unsigned long addr) if (phdr->p_filesz != phdr->p_memsz) memset(dst + phdr->p_filesz, 0x00, phdr->p_memsz - phdr->p_filesz); - flush_cache((unsigned long)dst, phdr->p_filesz); + flush_cache(rounddown((unsigned long)dst, ARCH_DMA_MINALIGN), + roundup(phdr->p_memsz, ARCH_DMA_MINALIGN)); ++phdr; } |