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Diffstat (limited to 'results/classifier/deepseek-r1:14b/output/hypervisor/1078892')
| -rw-r--r-- | results/classifier/deepseek-r1:14b/output/hypervisor/1078892 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:14b/output/hypervisor/1078892 b/results/classifier/deepseek-r1:14b/output/hypervisor/1078892 new file mode 100644 index 000000000..31d1a57f8 --- /dev/null +++ b/results/classifier/deepseek-r1:14b/output/hypervisor/1078892 @@ -0,0 +1,6 @@ + +qemu doesn't general protection fault if there are reserved bits set in page-directory-pointer table entries + +While working on implementing 32-bit PAE mode in a custom operating system, which I was testing in QEMU, I noticed that my OS worked correctly, but resulted in a general protection fault when booted on VMware, VirtualBox, or bochs. + +According to the Intel Architecture Manual, Volume 3A, Section 4.4.1 "PDPTE Registers", "If any of the PDPTEs sets both the P flag (bit 0) and any reserved bit, the MOV to CR instruction causes a general-protection exception (#GP(0)) and the PDPTEs are not loaded." QEMU does not emulate this behavior. \ No newline at end of file |