https://github.com/torvalds/linux
Revision e19a6ee2460bdd0d0055a6029383422773f9999a authored by James Morse on 20 June 2016, 17:28:01 UTC, committed by Will Deacon on 07 July 2016, 14:55:37 UTC
If we take an exception while at EL1, the exception handler inherits the original context's addr_limit and PSTATE.UAO values. To be consistent always reset addr_limit and PSTATE.UAO on (re-)entry to EL1. This prevents accidental re-use of the original context's addr_limit. Based on a similar patch for arm from Russell King. Cc: <stable@vger.kernel.org> # 4.6- Acked-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
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History 
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Tip revision: e19a6ee2460bdd0d0055a6029383422773f9999a authored by James Morse on 20 June 2016, 17:28:01 UTC
arm64: kernel: Save and restore UAO and addr_limit on exception entry
arm64: kernel: Save and restore UAO and addr_limit on exception entry
Tip revision: e19a6ee
| File | Mode | Size |
|---|---|---|
| aoa | ||
| arm | ||
| atmel | ||
| core | ||
| drivers | ||
| firewire | ||
| hda | ||
| i2c | ||
| isa | ||
| mips | ||
| oss | ||
| parisc | ||
| pci | ||
| pcmcia | ||
| ppc | ||
| sh | ||
| soc | ||
| sparc | ||
| spi | ||
| synth | ||
| usb | ||
| Kconfig | -rw-r--r-- | 3.8 KB |
| Makefile | -rw-r--r-- | 544 bytes |
| ac97_bus.c | -rw-r--r-- | 3.1 KB |
| last.c | -rw-r--r-- | 1.2 KB |
| sound_core.c | -rw-r--r-- | 15.6 KB |
| sound_firmware.c | -rw-r--r-- | 1.6 KB |
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