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when dial is called with a generic dialstring, it will try
/net and /net.alt in sequence. error out if the /net dial
gets interrupted and do not continue dialing /net.alt.
reduce stack usage by using the swaping nature of errstr()
instead of keeping two error string buffers on the stack.
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theres a race where procstopwait() is interrupted by a note,
setting p->pdbg to nil *before* acquiering the lock and
and pexit() and procctl() accessing it assuming it doesnt
change under them while they are holding the lock.
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previously, if dial was interrupted by an alarm or other note while connecting to a host that resolved to multiple ips, dial would ignore the interruption and try the next host. now dial properly returns with error when it is interrupted.
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previously, we setup mouse only when vgasize= was specifid in
plan9.ini. with efi systems, the framebuffer is already setup
for us and theres no requirement for going thru aux/vga setup,
but we still want to setup the mouse.
so do the mouseport= check once theres a framebuffer by testing
the existence of '#i/winname' (which fails when thers no
framebuffer).
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libaml comresses zero integer as nil, so remove the
nil check. this makes interrupts work in vmware with
efi.
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vmware in efi mode brings application processors up
with CR4 = 0 (pse disabled) which makes us page fault
when accessing the ap's pdb which might be in a 4MB
mapping when the boot processor used pse to setup
page tables.
so we unconditionally enable pse in apbootstrap
(and disable pae in case of surprises).
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bug: as jpm pointed out, when we run aux/wpa in rio window
and delete the window, aux/wpa was killed as it shared the
note group of the window.
fix: fork the notegroup.
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x230 booted in efi only (no csp) mode hangs
when traditional i8042reset() keyboard reset
is tried.
so we try acpireset() first which discoveres
and writes the acpi reset register.
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traps
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report descriptor (thanks aap_)
this fixes wireless keyboard/mouse on raspi.
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option of mk9660)
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instead of including kernel and config in the efi
fat image, we can just include the loaders and
read the plan9.ini and kernel from iso filesystem
just like the bios loaders.
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the uartmini enable function used to override the baud
register so the effecive baudrate was always set to
115200 baud.
now the default baudrate of 9600 is set correctly and can
be changed in the console= boot parameter.
thanks aap and hiro for debugging, pizza and beer :)
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dont write dns logfile
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9vx doesnt provide a /dev/kbd file and rio faking one
up causes problems with vncv. (issue #223)
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when /cfg/pxe/ file isnt there
having the memconf() (*e820=) last clutters the screen.
do it first, so we can read *acpi= and *bootscreen=
prints.
we want to continue using tftp even when the /cfg/pxe/$ether
file is not found. only when we detect no pxe/dhcp session,
then we switch to local filesystem (non-network boot).
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to reproduce:
% ramfs; cd /tmp
% mkdir foo; cd foo
% pwd
/tmp/foo
% rm /tmp/foo
% pwd
/tmp/foo
% ls
% ls /tmp
% ls ..
ramfs 202751: suicide: sys: trap: fault read addr=0x0 pc=0x0000e46d
ls: ..: '..' mount rpc error
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to make it possible to mark the bootscreen framebuffer
as write combining in early initialization, mtrr() is
changed not not to error() but to return an error string.
as bootscreen() is used before multiprocessor initialization,
we have to synchronize the mtrr's for every processor as
it comes online. for this, a new mtrrsync() function is
provided that is called from cpuidentify() if mtrr support
is indicated.
the boot processor runs mtrrsync() which snarfs the
registers. later, mtrrsync() is run again from the
application processors which apply the values from the
boot processor.
checkmtrr() from mp.c was removed as its task is also
done by mtrrsync() now.
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aperture so can change screen resolution
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protocols to find a usable one
the gop returned by LocateProtocol() is not usable on thinkpad x230,
so iterate over all handles to find a usable one.
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