On 12/27/13 8:49 PM, Neel Natu wrote: > Hi John, > > On Fri, Dec 27, 2013 at 9:05 AM, John Baldwin <j...@freebsd.org> wrote: >> While hacking on the power button support, I also started rototilling the >> DSDT >> generation code a bit. My initial goal was to enumerate the LPC serial ports >> (COM1 and COM2) properly via ACPI. I ended up doing the following: >> >> - Moved the info for the top-level PCI bus into the PCI emulation code and >> added ResourceProducer entries for the memory ranges decoded by the bus >> for memory BARs. >> - I added a framework to allow each PCI emulation driver to optionally write >> an entry into the DSDT under the \_SB_.PCI0 namespace. The LPC driver uses >> this to write a node for the LPC bus (\_SB_.PCI0.ISA). >> - I added a linker set to allow any LPC devices to write entries into the >> DSDT below the LPC node. I moved the existing block for the RTC out of >> acpi.c and into the RTC driver. I added DSDT nodes for the AT PIC, >> the 8254 ISA timer, and the LPC UART devices. >> - I also added a "SuperIO" device under the LPC node to claim "system >> resources" (as is done in real hardware). I added a linker set to allow >> various drivers to add IO or memory ranges that should be claimed by >> SuperIO and then added the extended RTC IO range and the registers used >> for ACPI power management as system resources. >> >> The end result is that for the stock VM created by vmrun.sh, the attimer0, >> uart0, and uart1 devices move from isa0 to acpi0. There is also a PIC >> device that would be claimed by 'device atpic' (but the stock amd64 kernel >> doesn't include that). The DSDT is also a bit more fleshed out, and also >> looks "nice" as devices are mostly laid out in the normal tree rather than >> using separate Scope() sections for each device. >> >> Note that I did add some helper routines for writing out DSDT lines and >> resource entries to try to simplify the code in the various DSDT handlers >> and make the code that generates DSDT lines a bit more readable (e.g. the >> implicit newlines make things more readable IMO). >> >> The patch is relative to the previous power button patch and is at >> http://www.FreeBSD.org/~jhb/patches/bhyve_dsdt.patch > > I am getting a "404 Not Found" at this URL.
Oops, I forgot to upload it to freefall. It should be there now. -- John Baldwin _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org"