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+architecture: 0.923
+arm: 0.886
+kernel: 0.845
+user-level: 0.832
+peripherals: 0.832
+semantic: 0.760
+device: 0.746
+mistranslation: 0.728
+performance: 0.654
+network: 0.613
+hypervisor: 0.611
+assembly: 0.606
+virtual: 0.599
+debug: 0.572
+graphic: 0.549
+socket: 0.543
+VMM: 0.505
+permissions: 0.503
+x86: 0.500
+files: 0.494
+register: 0.472
+ppc: 0.455
+vnc: 0.451
+risc-v: 0.442
+boot: 0.386
+i386: 0.381
+PID: 0.362
+TCG: 0.285
+KVM: 0.237
+--------------------
+arm: 0.999
+architecture: 0.434
+hypervisor: 0.206
+TCG: 0.060
+debug: 0.039
+files: 0.032
+virtual: 0.016
+device: 0.014
+kernel: 0.013
+VMM: 0.013
+register: 0.010
+user-level: 0.010
+PID: 0.005
+assembly: 0.005
+semantic: 0.004
+network: 0.003
+boot: 0.003
+performance: 0.002
+peripherals: 0.002
+risc-v: 0.002
+vnc: 0.002
+KVM: 0.001
+graphic: 0.001
+socket: 0.001
+permissions: 0.001
+mistranslation: 0.001
+ppc: 0.000
+x86: 0.000
+i386: 0.000
+
+ARM: HCR.TVM traps are not implemented
+
+On AARCH64, setting HCR.TVM to 1 is supposed to trap all writes to CTLR_EL1, TTBR0_EL1, TTBR1_EL1, TCR_EL1, ESR_EL1, FAR_EL1, AFSR0_EL1, AFSR1_EL1, MAIR_EL1, AMAIR_EL1, and CONTEXTIDR_EL1. However, it currently has no effect (QEMU emulator version 4.1.1).
+
+It is also likely that TRVM will not trap, but, I didn't verify this.
+
+Yes to both.
+
+Patch posted:
+https://lists.nongnu.org/archive/html/qemu-devel/2020-02/msg04401.html
+
+If you could help testing, that would be appreciated.
+
+Thank you for the patch! I am happy to test this for you. I will apply the patch/compile/test and get back to you.
+
+I tested in AArch64 mode and it worked for me. Looking at the patch, we might be missing trapping for "TTBCR"in AA32 though.
+
+Oops.  Thanks for the review.  Posted v2 with ttbcr included.
+
+Thank you! I also tested AArch32 and the code works. Ship it!
+
+Fixed here:
+https://git.qemu.org/?p=qemu.git;a=commitdiff;h=84929218512c
+