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+risc-v: 0.986
+virtual: 0.959
+register: 0.950
+mistranslation: 0.920
+files: 0.907
+user-level: 0.906
+semantic: 0.882
+performance: 0.830
+permissions: 0.810
+arm: 0.801
+graphic: 0.792
+PID: 0.777
+architecture: 0.768
+device: 0.766
+hypervisor: 0.750
+network: 0.736
+vnc: 0.732
+ppc: 0.724
+debug: 0.723
+socket: 0.713
+peripherals: 0.711
+kernel: 0.697
+boot: 0.647
+VMM: 0.640
+KVM: 0.616
+i386: 0.613
+TCG: 0.605
+assembly: 0.555
+x86: 0.535
+
+Qemu 3.1.0 risc-v mie.MEIE
+
+Hello all,
+
+There is a bug in qemu for Risc-v, related to the mie register: when we try to set the MEIE bit (11) nothing is done, even when we are running at machine mode.
+
+Li   a0 , 1 << 11
+Csrs mie , a0
+
+And when we read mie it is as though nothing was done.
+
+Going through the qemu source code I was able to correct it: on file op_helper.c, line 94, the variable all_ints should be initialized with:
+
+uint64_t all_ints = delegable_ints | MIP_MSIP | MIP_MTIP | MIP_MEIP;
+
+That is, the MIP_MEIP was missing.
+
+I've successfully triggered uart interrupts with this patch (virt machine).
+
+All the best,
+Pharos team
+
+It looks like this is fixed as of c7b951718815 ("RISC-V: Implement modular CSR helper interface"), which was merged on January 14th.
+
+Good news,
+
+Thanks
+
+LMK if that patch doesn't fix your issue.  QEMU master is pretty stable for RISC-V right now and since there's a handful of intertwined patches the best bet is probably just to use the commit hash above.
+
+This should be fixed in the 4.0 release, which is targeted for the middle of April.
+
+OK, I'll give it a try and give you some feedback.
+
+Thanks
+
+So I tried it but got the error:
+
+ERROR: missing file ../qemu-3.1.0/ui/keycodemapdb/README
+
+This is not a GIT checkout but module content appears to
+be missing. Do not use 'git archive' or GitHub download links
+to acquire QEMU source archives. Non-GIT builds are only
+supported with source archives linked from:
+
+  https://www.qemu.org/download/
+
+Developers working with GIT can use scripts/archive-source.sh
+if they need to create valid source archives.
+
+Makefile.cross-compiler:259: recipe for target 'qemu-3.1' failed
+make: *** [qemu-3.1] Error 1
+
+
+
+Get this is standard error, but I don't have time now to see how to work around it. Maybe later I can
+
+
+