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Diff for /www/73.html between version 1.34 and 1.35

version 1.34, 2023/04/05 09:41:51

version 1.35, 2023/04/06 20:15:59

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<li>VMM/VMD improvements

<ul>

<li>Updated <a href="https://man.openbsd.org/vmm.4">vmm(4)</a> to

allow guests to read MSR_HWCR and MSR_PSTATEDEF, which is necessary to

determine the TSC frequency on AMD families 17h and 19h.

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to SeaBIOS via the fw_cfg interface allowing it to properly

communicate memory ranges to a guest operating system. With this

special cases in ports can be removed.

<li>Added thread names to vm processes in <a

href="https://man.openbsd.org/vmd.8">vmd(8)</a>, visible in <a

href="https://man.openbsd.org/ps.1">ps(1)</a>.

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href="https://man.openbsd.org/vmm.4">vmm(4)</a> guests, preventing

invalid instruction exceptions. Also added WAITPKG feature

identification to i386 and amd64.

<li>Changed <a href="https://man.openbsd.org/vmd.8">vmd(8)</a> to

only open /dev/vmm once, having the parent process send the fd to the

vmm child process.

<li>Restricted <a href="https://man.openbsd.org/vmm.4">vmm(4)</a> exposed cpuid extended feature flags.

<li>Restricted <a href="https://man.openbsd.org/vmm.4">vmm(4)</a>

<li>Adjusted <a href="https://man.openbsd.org/vmd.8">vmd(8)</a> error paths to avoid removal of configuration-defined (known) VMs on error.

exposed cpuid extended feature flags.

<li>Adjusted <a href="https://man.openbsd.org/vmd.8">vmd(8)</a> error

paths to avoid removal of configuration-defined (known) VMs on error.

<li>Stopped being paranoid about hypervisor correct PKU handling.<br>

Added saving and restoring guest PKRU to <a

href="https://man.openbsd.org/vmm.4">vmm(4)</a>. Expose the PKU cpuid

bit to the guest if in use on the host.

<li>Made <a href="https://man.openbsd.org/vmd.8">vmd(8)</a> scan the PCI bus to determine bootorder strings.

<li>Made <a href="https://man.openbsd.org/vmd.8">vmd(8)</a> scan the

PCI bus to determine bootorder strings.

</ul>

<li>Various new userland features:

<ul>

<li>Added <a href="https://man.openbsd.org/kdump.1">kdump(1)</a>

argument support for msyscall, pledge, unveil, __realpath, ypconnect

and __tmpfd.

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<li>Various bugfixes and tweaks in userland:

<ul>

<li>Allow TZ to contain absolute paths starting with /usr/share/zoneinfo.

All absolute paths were ignored in 7.2 to avoid

<a href="https://man.openbsd.org/unveil.2">unveil(2)</a> violations.

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libraries in parallel to <a

href="https://man.openbsd.org/netstart.8">netstart(8)</a>, as this

does not depend on network access.

<li>Made <a href="https://man.openbsd.org/rc.8">rc(8)</a> print the

name of each library before relinking as a signal to the operator that

boot has not stalled.

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<li>Changed <a href="https://man.openbsd.org/df.1">df(1)</a> to

round up fractional percentages.

<li>Added the <a

href="https://man.openbsd.org/audioctl.8">audioctl(8)</a> -w option to

display variables periodically.

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and --preserve-status.<br>

Added signal as a full argument name for <a

href="https://man.openbsd.org/timeout.1">timeout(1)</a> -s.

<li>Fixed .wav files generated by <a

; href="https://man.openbsd.org/aucat.1">aucat(1)</a> by using extended

href="https://man.openbsd.org/aucat.1">aucat(1)</a> by using extended

header format.

<li>In <a

href="https://man.openbsd.org/disklabel.8">disklabel(8)</a>, use the

size of the largest chunk of free space, not the total of all such

chunks, when checking for sufficient space to add a partition.

<li>Fixed unbounded variable expansion in <a

href="https://man.openbsd.org/pkg-config.1">pkg-config(1)</a>.

<li>Switched to use <a

href="https://man.openbsd.org/llvm-strip.1">llvm-strip(1)</a> on

architectures that use <a

href="https://man.openbsd.org/ld.lld.1">ld.lld(1)</a>.

<li>Extended <a

href="https://man.openbsd.org/disklabel.8">disklabel(8)</a> template

parsing to allow "[mount point] *" as the specification for putting

the maximum available free space into a partition, and extended

command line parsing to allow "T-" as the specification to read the

template from stdin.

<li>Fixed a number of out of bounds reads in DNS response parsing.

<li>Fixed unbounded variable expansion in <a

href="https://man.openbsd.org/pkg-config.1">pkg-config(1)</a>.

<li>Switched to use <a

href="https://man.openbsd.org/llvm-strip.1">llvm-strip(1)</a> on

architectures that use <a

href="https://man.openbsd.org/ld.lld.1">ld.lld(1)</a>.

</ul>

<li>Improved hardware support and driver bugfixes, including:

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<li>Used <a href="https://man.openbsd.org/stravis.3">stravis(3)</a> to

sanitize redirect URIs from <a

href="https://man.openbsd.org/ftp.1">ftp(1)</a> fetch before printing.

<li>Prevent an <a

href="https://man.openbsd.org/unwind.8">unwind(8)</a> crash when a TCP

query is larger than the length field indicated.

<li>Preserve the original order of nameservers as configured via <a

href="https://man.openbsd.org/resolv.conf.5">resolv.conf(5)</a> in <a

href="https://man.openbsd.org/resolvd.8">resolvd(8)</a>.

<li>Restrict the characters allowed in the hostname argument of <a

href="https://man.openbsd.org/getaddrinfo.3">getaddrinfo(3)</a> to the

set [A-z0-9-_.]. Additionally two consecutive dots ('.') are not

allowed nor can the string start with - or '.'. This removes

characters like '$', '`', '\n' or '*' that can traverse the DNS

without problems, but have special meaning, for example a shell.

<li>Fixed a number of out of bounds reads in DNS response parsing of

the async DNS resolver in libc.

<li>Added <a

href="https://man.openbsd.org/ifconfig.8">ifconfig(8)</a> -M (mac) to

find the mac address on an interface and print it.