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(parent: 88eb868) | patch
Add TLB bypass for instruction emulation
authorvisa <visa@openbsd.org>
Wed, 11 Jan 2023 03:19:52 +0000 (03:19 +0000)
committervisa <visa@openbsd.org>
Wed, 11 Jan 2023 03:19:52 +0000 (03:19 +0000)
commit16e66f46ab97ec65f1d95baa88b1f4e0d3ac8ae9
treedfe6426389b44a30d2afa83f74c6d746360f93fdtree | snapshot
parent88eb8680f943aec99625648b1857f5201efff51ecommit | diff
Add TLB bypass for instruction emulation

copyinsn() fetches a userland instruction through the direct map.
This lets emulation work with execute-only virtual memory mappings.

OK deraadt@
sys/arch/mips64/include/cpu.h diff | blob | history
sys/arch/mips64/include/pmap.h diff | blob | history
sys/arch/mips64/mips64/fp_emulate.c diff | blob | history
sys/arch/mips64/mips64/pmap.c diff | blob | history
sys/arch/mips64/mips64/trap.c diff | blob | history
OpenBSD src
by Ahmet Artu Yildirim