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| author |   Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-05-19 05:49:24 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-05-26 22:22:23 +1000 |
| commit | cf209951fa7f2e7a8ec92f45f27ea11bc024bbfc (patch) | |
| tree | ee99ed0c0e5202d1e5f7e441a77b68cc4d1addfa /arch/powerpc/platforms/8xx/Kconfig | |
| parent | powerpc/8xx: Map IMMR with a huge page (diff) | |
| download | linux-dev-cf209951fa7f2e7a8ec92f45f27ea11bc024bbfc.tar.xz linux-dev-cf209951fa7f2e7a8ec92f45f27ea11bc024bbfc.zip | |
powerpc/8xx: Map linear memory with huge pages
Map linear memory space with 512k and 8M pages whenever
possible.
Three mappings are performed:
- One for kernel text
- One for RO data
- One for the rest
Separating the mappings is done to be able to update the
protection later when using STRICT_KERNEL_RWX.
The ITLB miss handler now need to also handle huge TLBs
unless kernel text in pinned.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c44f0ab5510474f25123d904cd1f4e5c6aa3c1ac.1589866984.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/platforms/8xx/Kconfig')
0 files changed, 0 insertions, 0 deletions