d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
9b1aa8d622
freebsd-dev/usr.sbin/bhyve
History
Neel Natu 9b1aa8d622 Restructure memory allocation in bhyve to support "devmem". 
devmem is used to represent MMIO devices like the boot ROM or a VESA framebuffer
where doing a trap-and-emulate for every access is impractical. devmem is a
hybrid of system memory (sysmem) and emulated device models.

devmem is mapped in the guest address space via nested page tables similar
to sysmem. However the address range where devmem is mapped may be changed
by the guest at runtime (e.g. by reprogramming a PCI BAR). Also devmem is
usually mapped RO or RW as compared to RWX mappings for sysmem.

Each devmem segment is named (e.g. "bootrom") and this name is used to
create a device node for the devmem segment (e.g. /dev/vmm/testvm.bootrom).
The device node supports mmap(2) and this decouples the host mapping of
devmem from its mapping in the guest address space (which can change).

Reviewed by:	tychon
Discussed with:	grehan
Differential Revision:	https://reviews.freebsd.org/D2762
MFC after:	4 weeks
2015-06-18 06:00:17 +00:00
..
acpi.c Implement the century byte in the RTC. Some guests require this field to be 2015-04-28 23:44:47 +00:00
acpi.h Implement a PCI interrupt router to route PCI legacy INTx interrupts to 2014-05-15 14:16:55 +00:00
ahci.h Polish AHCI disk identify data and fix speed negotiation. 2015-03-13 20:14:35 +00:00
atkbdc.c Simplify the meaning of return values from the inout handlers. After this 2014-07-25 20:18:35 +00:00
bhyve.8 Restructure memory allocation in bhyve to support "devmem". 2015-06-18 06:00:17 +00:00
bhyverun.c Restructure memory allocation in bhyve to support "devmem". 2015-06-18 06:00:17 +00:00
bhyverun.h Simplify instruction restart logic in bhyve. 2015-01-18 03:08:30 +00:00
block_if.c Allow configuration of the sector size advertised to the guest. 2015-05-12 00:30:39 +00:00
block_if.h Temporarily revert r282922 which bumped the max descriptors. 2015-05-21 04:19:22 +00:00
bootrom.c Restructure memory allocation in bhyve to support "devmem". 2015-06-18 06:00:17 +00:00
bootrom.h Restructure memory allocation in bhyve to support "devmem". 2015-06-18 06:00:17 +00:00
consport.c Handle single-byte reads from the bvmcons port (0x220) by returning 2014-04-08 21:02:03 +00:00
dbgport.c Mark the I/O ports used by the bhyve console and debug devices as system 2014-02-07 20:53:41 +00:00
dbgport.h Change the behavior of bhyve such that the gdb listening port is opt-in 2013-10-08 16:36:17 +00:00
inout.c Deprecate the 3-way return values from vm_gla2gpa() and vm_copy_setup(). 2015-05-06 16:25:20 +00:00
inout.h Simplify the meaning of return values from the inout handlers. After this 2014-07-25 20:18:35 +00:00
ioapic.c Reassign copyright statements on several files from Advanced 2015-04-23 14:22:20 +00:00
ioapic.h Reassign copyright statements on several files from Advanced 2015-04-23 14:22:20 +00:00
Makefile Restructure memory allocation in bhyve to support "devmem". 2015-06-18 06:00:17 +00:00
mem.c Support PCI extended config space in bhyve. 2014-08-08 03:49:01 +00:00
mem.h Support PCI extended config space in bhyve. 2014-08-08 03:49:01 +00:00
mevent_test.c Add simplistic periodic timer support to mevent using kqueue's 2013-09-19 04:48:26 +00:00
mevent.c Re-adding an event to a kqueue modifies the parameters of the original event. 2014-05-05 16:30:03 +00:00
mevent.h Extend the ACPI power management support to wire a virtual power button up 2013-12-28 04:01:05 +00:00
mptbl.c Implement a PCI interrupt router to route PCI legacy INTx interrupts to 2014-05-15 14:16:55 +00:00
mptbl.h Make the virtual ioapic available unconditionally in a bhyve virtual machine. 2013-10-31 05:44:45 +00:00
pci_ahci.c Allow byte reads of AHCI registers. 2015-05-07 18:35:15 +00:00
pci_emul.c Advertise an additional memory BAR in the "dummy" device emulation. 2015-05-02 03:25:24 +00:00
pci_emul.h Support PCI extended config space in bhyve. 2014-08-08 03:49:01 +00:00
pci_hostbridge.c The 'hostbridge' device exists to allow guests to infer msi/msix 2015-05-21 20:11:52 +00:00
pci_irq.c Reassign copyright statements on several files from Advanced 2015-04-23 14:22:20 +00:00
pci_irq.h Reassign copyright statements on several files from Advanced 2015-04-23 14:22:20 +00:00
pci_lpc.c Restructure memory allocation in bhyve to support "devmem". 2015-06-18 06:00:17 +00:00
pci_lpc.h Restructure memory allocation in bhyve to support "devmem". 2015-06-18 06:00:17 +00:00
pci_passthru.c Restructure memory allocation in bhyve to support "devmem". 2015-06-18 06:00:17 +00:00
pci_uart.c Enhance the support for PCI legacy INTx interrupts and enable them in 2014-01-29 14:56:48 +00:00
pci_virtio_block.c Set the subvendor field in config space to the vendor ID. 2015-05-13 17:38:07 +00:00
pci_virtio_net.c Set the subvendor field in config space to the vendor ID. 2015-05-13 17:38:07 +00:00
pci_virtio_rnd.c Set the subvendor field in config space to the vendor ID. 2015-05-13 17:38:07 +00:00
pm.c Reassign copyright statements on several files from Advanced 2015-04-23 14:22:20 +00:00
post.c Rework the DSDT generation code a bit to generate more accurate info about 2014-01-02 21:26:59 +00:00
rtc.c Add "-u" option to bhyve(8) to indicate that the RTC should maintain UTC time. 2015-02-24 02:04:16 +00:00
rtc.h Add "-u" option to bhyve(8) to indicate that the RTC should maintain UTC time. 2015-02-24 02:04:16 +00:00
smbiostbl.c Correct display of bhyve SMBIOS UUIDs with dmidecode by bumping the version. 2014-09-23 01:17:22 +00:00
smbiostbl.h Add SMBIOS support. 2014-03-04 17:12:06 +00:00
spinup_ap.c Use 'cpuset_t' to represent the vcpus active in a virtual machine. 2014-03-20 18:15:37 +00:00
spinup_ap.h
task_switch.c Deprecate the 3-way return values from vm_gla2gpa() and vm_copy_setup(). 2015-05-06 16:25:20 +00:00
uart_emul.c Disable the 'uart_drain()' callback when the emulated receive FIFO is full. 2014-05-05 23:54:13 +00:00
uart_emul.h Add support for PCI-to-ISA LPC bridge emulation. If the LPC bus is attached 2013-10-29 00:18:11 +00:00
virtio.c Handling indirect descriptors is a capability of the host and 2015-05-11 21:24:10 +00:00
virtio.h Fix networking problem after r280026. 2015-03-15 16:09:39 +00:00
xmsr.c Emulate MSR 0xC0011024 when running on AMD processors. 2015-02-24 05:15:40 +00:00
xmsr.h Restructure the MSR handling so it is entirely handled by processor-specific 2014-09-20 02:35:21 +00:00