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| author |   Jason Yan <yanaijie@huawei.com> | 2019-09-20 17:45:37 +0800 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-11-13 19:27:32 +1100 |
| commit | 39f4b7bf7571a9c6529b0bb3de49c9bb0998f194 (patch) | |
| tree | d83d422a39731bc86b3e44c5fb5031bd4ee5cde7 /arch/powerpc/mm/init-common.c | |
| parent | powerpc: move memstart_addr and kernstart_addr to init-common.c (diff) | |
| download | linux-dev-39f4b7bf7571a9c6529b0bb3de49c9bb0998f194.tar.xz linux-dev-39f4b7bf7571a9c6529b0bb3de49c9bb0998f194.zip | |
powerpc: introduce kernstart_virt_addr to store the kernel base
Now the kernel base is a fixed value - KERNELBASE. To support KASLR, we
need a variable to store the kernel base.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Diana Craciun <diana.craciun@nxp.com>
Tested-by: Diana Craciun <diana.craciun@nxp.com>
Signed-off-by: Scott Wood <oss@buserror.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/mm/init-common.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/mm/init-common.c b/arch/powerpc/mm/init-common.c index e223da482c0c..42ef7a6e6098 100644 --- a/arch/powerpc/mm/init-common.c +++ b/arch/powerpc/mm/init-common.c @@ -25,6 +25,8 @@ phys_addr_t memstart_addr __ro_after_init = (phys_addr_t)~0ull; EXPORT_SYMBOL_GPL(memstart_addr); phys_addr_t kernstart_addr __ro_after_init; EXPORT_SYMBOL_GPL(kernstart_addr); +unsigned long kernstart_virt_addr __ro_after_init = KERNELBASE; +EXPORT_SYMBOL_GPL(kernstart_virt_addr); static bool disable_kuep = !IS_ENABLED(CONFIG_PPC_KUEP); static bool disable_kuap = !IS_ENABLED(CONFIG_PPC_KUAP); |