Date: Mon, 18 Nov 2024 18:03:46 +0000 From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 282852] bhyve: Failed to emulate instruction sequence Message-ID: <bug-282852-27103@https.bugs.freebsd.org/bugzilla/>
index | next in thread | raw e-mail
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=282852 Bug ID: 282852 Summary: bhyve: Failed to emulate instruction sequence Product: Base System Version: 14.2-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bhyve Assignee: virtualization@FreeBSD.org Reporter: scf@FreeBSD.org After an update and reboot to a VM I have, bhyve now returns an error: Failed to emulate instruction sequence [ 41f646040874064c017d88eb144c89 ] at 0xbea5fcf9 Apparently, this occurs when a UEFI variables file is updated. The claim is that bhyve did not support emulation of "testb imm8,r/m8". I can confirm that replacing the UEFI variables file with a previous copy does allow the VM to boot. There is an issue that fixes this for illumos (https://www.illumos.org/issues/14483) with the fix on GitHub (https://github.com/illumos/illumos-gate/commit/e1ded6bd708926c1adf348bccd10d6df6a12eedb). The fix makes a call to vie_mmio_read() which is only in illumos. I had tried that patch with using memread() without success, but my bhyve/vmm-foo is lacking. :) -- You are receiving this mail because: You are the assignee for the bug.help
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-282852-27103>