| commit | 62d96c71d248834af2891293dc23cc344ae2ec36 | |
| author | Catalin Marinas <catalin.marinas@arm.com> | |
| Fri, 11 Sep 2015 17:22:01 +0000 (11 18:22 +0100) | ||
| committer | Will Deacon <will.deacon@arm.com> | |
| Mon, 14 Sep 2015 11:28:41 +0000 (14 12:28 +0100) | ||
| tree | 0cab58cfe00d23e610a671f13ed7dc3e2ee66903 | treesnapshot (tar.gz zip) |
| parent | b847415ce96efef819534b230d84695b1bc6d36b | commitdiff |
arm64: Fix pte_modify() to preserve the hardware dirty information
The pte_modify() function with hardware AF/DBM enabled must transfer the
hardware dirty information to the software PTE_DIRTY bit. However, it
was setting this bit in newprot and the mask does not cover such bit.
This patch sets PTE_DIRTY on the original pte which will be preserved in
the returned value.
Fixes: 2f4b829c625e ("arm64: Add support for hardware updates of the access and dirty pte bits")
Cc: Julien Grall <julien.grall@citrix.com>
Tested-by: Julien Grall <julien.grall@citrix.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
The pte_modify() function with hardware AF/DBM enabled must transfer the
hardware dirty information to the software PTE_DIRTY bit. However, it
was setting this bit in newprot and the mask does not cover such bit.
This patch sets PTE_DIRTY on the original pte which will be preserved in
the returned value.
Fixes: 2f4b829c625e ("arm64: Add support for hardware updates of the access and dirty pte bits")
Cc: Julien Grall <julien.grall@citrix.com>
Tested-by: Julien Grall <julien.grall@citrix.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
| arch/arm64/include/asm/pgtable.h | diffblobblamehistory |