From 3d21672de4cba853ce441767b3a24ffec8e8c782 Mon Sep 17 00:00:00 2001 From: Scott Johnson Date: Wed, 1 Sep 2021 10:08:16 -0700 Subject: Simplify calculation of mxr --- riscv/mmu.cc | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'riscv') diff --git a/riscv/mmu.cc b/riscv/mmu.cc index 7f2858c..b50ca8c 100644 --- a/riscv/mmu.cc +++ b/riscv/mmu.cc @@ -347,9 +347,7 @@ reg_t mmu_t::walk(reg_t addr, access_type type, reg_t mode, bool virt, bool hlvx bool s_mode = mode == PRV_S; bool sum = proc->state.sstatus->readvirt(virt) & MSTATUS_SUM; - reg_t arch_vsstatus = proc->state.sstatus->readvirt(true); - reg_t arch_sstatus = proc->state.sstatus->readvirt(false); - bool mxr = (arch_sstatus | (virt ? arch_vsstatus : 0)) & MSTATUS_MXR; + bool mxr = (proc->state.sstatus->readvirt(false) | proc->state.sstatus->readvirt(virt)) & MSTATUS_MXR; // verify bits xlen-1:va_bits-1 are all equal int va_bits = PGSHIFT + vm.levels * vm.idxbits; -- cgit v1.1