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authorChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:34:26 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:35:44 +0000
commit25f8033d556aa17afaea4a5196ea7a69fe248320 (patch)
tree0f056db167683be54ea1e5e72d29d6069af55e7d /results/classifier/deepseek-2-tmp/output/debug/1879646
parent8e6da29e4ee5fc14bc1cc816a24f21271f14090d (diff)
downloademulator-bug-study-25f8033d556aa17afaea4a5196ea7a69fe248320.tar.gz
emulator-bug-study-25f8033d556aa17afaea4a5196ea7a69fe248320.zip
add new temporary deepseek-r1:14b results
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+
+[Feature request] x86: dump MSR features in human form
+
+QEMU might fail because host/guest cpu features are not properly configured:
+
+qemu-system-x86_64: error: failed to set MSR 0x48f to 0x7fefff00036dfb
+qemu-system-x86_64: /root/qemu-master/target/i386/kvm.c:2695:
+kvm_buf_set_msrs: Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.
+
+To ease debugging, it the MSR features bit could be dumped.
+
+Example in this thread:
+
+https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05593.html
+
+ The high 32 bits are 0111 1111 1110 1111 1111 1111.
+
+ The low 32 bits are 0000 0011 0110 1101 1111 1011.
+
+ The features that are set are the xor, so 0111 1100 1000 0010 0000 0100:
+
+ - bit 2, vmx-exit-nosave-debugctl
+ - bit 9, host address space size, is handled automatically by QEMU
+ - bit 15, vmx-exit-ack-intr
+ - bit 17, vmx-exit-save-pat
+ - bit 18, vmx-exit-load-pat
+ - bit 19, vmx-exit-save-efer
+ - bit 20, vmx-exit-load-efer
+ - bit 21, vmx-exit-save-preemption-timer
+
+This output ^^^ is easier to digest. \ No newline at end of file