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arch/risc-v/src/fe310: Branch to up_sigdeliver() with interrupts disabled

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When executing an MRET instruction, MIE is set to MPIE.
In order to branch to up_sigdeliver() with interrupts disabled,
we need to change MPIE, not MIE.
This commit is contained in:
Yoshinori Sugino 2020-09-28 16:39:31 +09:00 committed by Brennan Ashton
parent 0e98dc306b
commit 2adec1f366
1 changed files with 2 additions and 2 deletions
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arch/risc-v/src/fe310/fe310_schedulesigaction.c
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@ -155,7 +155,7 @@ void up_schedule_sigaction(struct tcb_s *tcb, sig_deliver_t sigdeliver)
g_current_regs[REG_EPC] = (uint32_t)up_sigdeliver;
int_ctx = g_current_regs[REG_INT_CTX];
int_ctx &= ~MSTATUS_MIE;
int_ctx &= ~MSTATUS_MPIE;
g_current_regs[REG_INT_CTX] = int_ctx;
@ -195,7 +195,7 @@ void up_schedule_sigaction(struct tcb_s *tcb, sig_deliver_t sigdeliver)
tcb->xcp.regs[REG_EPC] = (uint32_t)up_sigdeliver;
int_ctx = tcb->xcp.regs[REG_INT_CTX];
int_ctx &= ~MSTATUS_MIE;
int_ctx &= ~MSTATUS_MPIE;
tcb->xcp.regs[REG_INT_CTX] = int_ctx;