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| author | Nicholas Piggin <npiggin@gmail.com> | 2018-03-26 15:06:00 +1000 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2018-03-27 00:41:09 -0500 |
| commit | 336f306555d02505a429a0a01b06bf7130c36c03 (patch) | |
| tree | 3f0e9353732e547f09894f4210fc16f34862f2f4 /core/init.c | |
| parent | 8cabd06243ac077a4ca6c09424fac92941b72321 (diff) | |
| download | skiboot-336f306555d02505a429a0a01b06bf7130c36c03.zip skiboot-336f306555d02505a429a0a01b06bf7130c36c03.tar.gz skiboot-336f306555d02505a429a0a01b06bf7130c36c03.tar.bz2 | |
mem-map: Use a symbolic constant for exception vector size
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'core/init.c')
| -rw-r--r-- | core/init.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/core/init.c b/core/init.c index 3de89a7..d13b17c 100644 --- a/core/init.c +++ b/core/init.c @@ -59,7 +59,7 @@ static size_t kernel_size; static bool kernel_32bit; /* We backup the previous vectors here before copying our own */ -static uint8_t old_vectors[0x2000]; +static uint8_t old_vectors[EXCEPTION_VECTORS_END]; #ifdef SKIBOOT_GCOV void skiboot_gcov_done(void); @@ -379,9 +379,9 @@ static bool load_kernel(void) * If the kernel is at 0, restore it as it was overwritten * by our vectors. */ - if (kernel_entry < 0x2000) { + if (kernel_entry < EXCEPTION_VECTORS_END) { cpu_set_sreset_enable(false); - memcpy(NULL, old_vectors, 0x2000); + memcpy(NULL, old_vectors, EXCEPTION_VECTORS_END); sync_icache(); } } else { @@ -739,14 +739,16 @@ void copy_exception_vectors(void) /* Backup previous vectors as this could contain a kernel * image. */ - memcpy(old_vectors, NULL, 0x2000); + memcpy(old_vectors, NULL, EXCEPTION_VECTORS_END); - /* Copy from 0x100 to 0x2000, avoid below 0x100 as this is - * the boot flag used by CPUs still potentially entering + /* Copy from 0x100 to EXCEPTION_VECTORS_END, avoid below 0x100 as + * this is the boot flag used by CPUs still potentially entering * skiboot. */ - BUILD_ASSERT((&reset_patch_end - &reset_patch_start) < 0x1f00); - memcpy((void *)0x100, (void *)(SKIBOOT_BASE + 0x100), 0x1f00); + BUILD_ASSERT((&reset_patch_end - &reset_patch_start) < + EXCEPTION_VECTORS_END - 0x100); + memcpy((void *)0x100, (void *)(SKIBOOT_BASE + 0x100), + EXCEPTION_VECTORS_END - 0x100); sync_icache(); } |