Searched hist:12850 (Results 1 - 3 of 3) sorted by relevance
| /gem5/src/arch/riscv/ | ||
| H A D | faults.hh | diff 12850:7036cad54910 Sun Jun 10 18:41:00 EDT 2018 Alec Roelke <alec.roelke@gmail.com> arch-riscv: Add xret instructions This patch adds the uret, sret, and mret instructions for use with returning from user-, supervisor-, and machine-level code, respectively. These instructions read the STATUS register to determine the previous privilege level and modify it to re-enable interrupts at the old privilege level. These instructions can only be executed at the corresponding privilege level or higher. Change-Id: I6125c31cb2fdcc3f83eca86910519e81ffbbbfc9 Reviewed-on: https://gem5-review.googlesource.com/11136 Maintainer: Alec Roelke <alec.roelke@gmail.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Robert Scheffel <robert.scheffel1@tu-dresden.de> |
| H A D | registers.hh | diff 12850:7036cad54910 Sun Jun 10 18:41:00 EDT 2018 Alec Roelke <alec.roelke@gmail.com> arch-riscv: Add xret instructions This patch adds the uret, sret, and mret instructions for use with returning from user-, supervisor-, and machine-level code, respectively. These instructions read the STATUS register to determine the previous privilege level and modify it to re-enable interrupts at the old privilege level. These instructions can only be executed at the corresponding privilege level or higher. Change-Id: I6125c31cb2fdcc3f83eca86910519e81ffbbbfc9 Reviewed-on: https://gem5-review.googlesource.com/11136 Maintainer: Alec Roelke <alec.roelke@gmail.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Robert Scheffel <robert.scheffel1@tu-dresden.de> |
| /gem5/src/arch/riscv/isa/ | ||
| H A D | decoder.isa | diff 12850:7036cad54910 Sun Jun 10 18:41:00 EDT 2018 Alec Roelke <alec.roelke@gmail.com> arch-riscv: Add xret instructions This patch adds the uret, sret, and mret instructions for use with returning from user-, supervisor-, and machine-level code, respectively. These instructions read the STATUS register to determine the previous privilege level and modify it to re-enable interrupts at the old privilege level. These instructions can only be executed at the corresponding privilege level or higher. Change-Id: I6125c31cb2fdcc3f83eca86910519e81ffbbbfc9 Reviewed-on: https://gem5-review.googlesource.com/11136 Maintainer: Alec Roelke <alec.roelke@gmail.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Robert Scheffel <robert.scheffel1@tu-dresden.de> |
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