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arch: fe310: Fix mstatus handlings #55

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Merged
acassis merged 1 commit into from
Jan 8, 2020
Merged

arch: fe310: Fix mstatus handlings #55

acassis merged 1 commit into from
Jan 8, 2020

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@masayuki2009
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@masayuki2009 masayuki2009 commented Jan 8, 2020

Summary

  • This PR fixes incorrect mstatus.mie initial setting introduced in previous commit.
  • Also, refactor mstatus.mpp settings.

Impact

  • This PR only affects interrupt handlings on FE310

Testing

  • I only tested this PR with nsh commands on qemu and also checked with gdb.

@masayuki2009
arch: fe310: Fix mstatus handling
ed39676 
In previous commit, mstatus.mie was set when creating a new task
but this change was incorrect and had a side effect such that
a machine interrupt would be enabled just before returning from
interrupt handling routine to switch context.

Also, mstatus.mpp is set to machine mode in up_get_newintctx()
instead of fe310_dispatch_irq().
@acassis acassis changed the base branch from master to pr55 January 8, 2020 13:35
@acassis acassis merged commit a804320 into apache:pr55 Jan 8, 2020
@masayuki2009 masayuki2009 mentioned this pull request Jan 9, 2020
Merged
@masayuki2009 masayuki2009 deleted the fix_fe310_mstatus branch March 20, 2020 01:08
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@masayuki2009 @acassis