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opnsense-src/usr.sbin/bhyve
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Mark Johnston 649a910e34 bhyve: Avoid holding /dev/pci open unnecessarily 
Some device models, LPC in particular, will call pci_host_read_config()
when probing for devices.  Currently this results in pcifd_init()
opening /dev/pci, and thus bhyve holds the fd open even when it's not
needed.

Modify pci_host_{read,write}_config() to open /dev/pci independent of
the global pcifd.  This means that these routines can only be used
during VM initialization, as capsicum will prevent further opens
afterward.  Introduce internal wrappers which use the global pcifd,
intended for the passthru code.

Reviewed by:	jhb
MFC after:	3 weeks
Fixes:		563fd2240e ("bhyve: export funcs for read/write pci config")
Differential Revision:	https://reviews.freebsd.org/D48908
2025-02-14 15:25:08 +00:00
..
aarch64 bhyve/aarch64: Handle unknown exceptions 2024-10-15 18:24:42 +01:00
amd64 bhyve: merge adjacent E820 entries 2024-10-22 14:17:02 +02:00
gdb Update Makefile.depend files 2024-10-14 10:26:17 -07:00
kbdlayout Remove residual blank line at start of Makefile 2024-07-15 16:43:39 -06:00
riscv bhyve/riscv: clean up SBI handlers. 2025-02-05 09:32:25 +00:00
acpi.c bhyve: return ENOMEM instead of EFAULT and call free() after being used 2024-01-16 09:39:25 -05:00
acpi.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
acpi_device.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
acpi_device.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
ahci.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
audio.c bhyve/audio.c: avoid re-calculating the length of dev_name 2023-12-26 09:36:31 -07:00
audio.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
basl.c bhyve: add config option to load ACPI tables into memory 2023-08-22 07:49:00 +02:00
basl.h bhyve: maintain RSDT and XSDT by basl 2023-06-20 10:56:23 +02:00
bhyve.8 bhyve: TPM 2.0 emulation with swtpm 2024-10-22 14:04:24 +02:00
bhyve_config.5 bhyve: TPM 2.0 emulation with swtpm 2024-10-22 14:04:24 +02:00
bhyvegc.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
bhyvegc.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
bhyverun.c bhyve: Convert to using vm_openf() 2024-11-05 01:40:41 +00:00
bhyverun.h bhyve: Fix handling of -r 2024-04-29 10:13:50 -04:00
block_if.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
block_if.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
bootrom.c bhyve: Make boot ROM handling more consistent 2024-08-19 13:55:47 +00:00
bootrom.h bhyve: Make boot ROM handling more consistent 2024-08-19 13:55:47 +00:00
config.c Remove $FreeBSD$: one-line .c pattern 2023-08-16 11:54:42 -06:00
config.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
console.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
console.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
debug.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
gdb.c bhyve: Optionally put vCPUs back in the debug state after resuming 2024-08-07 19:27:23 +00:00
gdb.h bhyve: refactor gdbstub to enable single-stepping on AMD CPUs 2023-12-12 15:28:59 -08:00
hda_codec.c bhyve: improve bounds checks in hda_codec 2024-10-03 17:14:11 -04:00
hda_reg.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
hdac_reg.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
iov.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
iov.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
ipc.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
libslirp.h bhyve: Add a slirp network backend 2023-11-22 15:18:46 -05:00
Makefile bhyve: TPM 2.0 emulation with swtpm 2024-10-22 14:04:24 +02:00
Makefile.depend Remove $FreeBSD$: one-line sh pattern 2023-08-16 11:55:03 -06:00
Makefile.depend.options Remove $FreeBSD$: one-line sh pattern 2023-08-16 11:55:03 -06:00
mem.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
mem.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
mevent.c bhyve: Extend mevent to support updating timers 2024-04-10 11:17:56 -04:00
mevent.h bhyve: Extend mevent to support updating timers 2024-04-10 11:17:56 -04:00
mevent_test.c Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
net_backend_netgraph.c bhyve: Split backends into separate files 2023-11-22 15:18:46 -05:00
net_backend_netmap.c bhyve: Split backends into separate files 2023-11-22 15:18:46 -05:00
net_backend_slirp.c bhyve: Implement the libslirp notify callback 2025-01-07 14:33:45 +00:00
net_backends.c bhyve: Split backends into separate files 2023-11-22 15:18:46 -05:00
net_backends.h bhyve: Split backends into separate files 2023-11-22 15:18:46 -05:00
net_backends_priv.h bhyve: Split backends into separate files 2023-11-22 15:18:46 -05:00
net_utils.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
net_utils.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
pci_ahci.c bhyve ahci: Improve robustness of TRIM handling 2024-10-24 10:18:09 -04:00
pci_e82545.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
pci_emul.c bhyve/riscv: Initial import. 2024-10-31 20:24:12 +00:00
pci_emul.h bhyve: Support legacy PCI interrupts on arm64 2024-04-10 11:17:56 -04:00
pci_fbuf.c bhyve: avoid updating fbaddr when vm_mmap_memseg fails 2024-08-26 16:23:52 -04:00
pci_hda.c bhyve: validate corb->wp to avoid infinite loop 2024-09-22 07:25:02 -04:00
pci_hda.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
pci_hostbridge.c Remove $FreeBSD$: one-line .c pattern 2023-08-16 11:54:42 -06:00
pci_irq.h bhyve/riscv: Initial import. 2024-10-31 20:24:12 +00:00
pci_nvme.c bhyve/nvme: Fix Infinite loop in queue processing 2024-10-13 06:58:50 -07:00
pci_passthru.c bhyve: Avoid holding /dev/pci open unnecessarily 2025-02-14 15:25:08 +00:00
pci_passthru.h bhyve: Improve pcifd function naming 2023-10-04 12:53:16 -04:00
pci_uart.c bhyve: Move device model-independent UART code into a separate file 2024-03-21 01:04:48 -04:00
pci_virtio_9p.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
pci_virtio_block.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
pci_virtio_console.c bhyve: avoid buffer overflow in pci_vtcon_control_send 2024-10-15 16:54:19 -04:00
pci_virtio_input.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
pci_virtio_net.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
pci_virtio_rnd.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
pci_virtio_scsi.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
pci_xhci.c bhyve: simplify slot validation in xHCI emulation 2024-09-21 13:36:10 -04:00
pci_xhci.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
pctestdev.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
pctestdev.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
qemu_fwcfg.c bhyve: fix buffer overflow in QemuFwCfg 2023-10-17 15:57:28 +02:00
qemu_fwcfg.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
qemu_loader.c bhyve: add helper struct for qemus acpi table loader 2023-04-25 08:29:25 +02:00
qemu_loader.h bhyve: add helper struct for qemus acpi table loader 2023-04-25 08:29:25 +02:00
rfb.c bhyve: support noVNC SetPixelFormat request 2024-09-09 10:21:17 -07:00
rfb.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
rtc_pl031.c bhyve: Implement a PL031 RTC on arm64 2024-04-10 11:17:56 -04:00
rtc_pl031.h bhyve: Implement a PL031 RTC on arm64 2024-04-10 11:17:56 -04:00
smbiostbl.c bhyve: Use vm_get_highmem_base() instead of hard-coding the value 2024-04-10 11:17:55 -04:00
smbiostbl.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
snapshot.c bhyve: Use vm_get_highmem_base() instead of hard-coding the value 2024-04-10 11:17:55 -04:00
snapshot.h bhyve: Remove init_snapshot() and initialize static vars 2023-10-17 14:26:51 -04:00
sockstream.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
sockstream.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
tpm_device.c bhyve: add cmdline option for TPM emulation 2023-08-17 08:17:59 +02:00
tpm_device.h bhyve: add cmdline option for TPM emulation 2023-08-17 08:17:59 +02:00
tpm_emul.h bhyve/tpm: create crb thread for sending tpm commands 2023-06-20 10:59:00 +02:00
tpm_emul_passthru.c bhyve: emulate TPM passthru by accessing /dev/tpmX 2023-08-10 09:23:42 +02:00
tpm_emul_swtpm.c bhyve: TPM 2.0 emulation with swtpm 2024-10-22 14:04:24 +02:00
tpm_intf.h bhyve: add emulation for CRB register of TPM devices 2023-08-10 09:23:33 +02:00
tpm_intf_crb.c bhyve: TPM CRB: pass actual TPM request length to backend execute_cmd() 2024-10-22 14:04:23 +02:00
tpm_ppi.h bhyve: add Qemu PPI emulation for TPM devices 2023-08-14 10:17:36 +02:00
tpm_ppi_qemu.c bhyve: fix Out-Of-Bounds read/write heap in tpm_ppi_mem_handler 2024-09-04 14:38:11 +00:00
uart_backend.c bhyve uart: Fix errors from GCC 2024-10-02 17:31:59 -04:00
uart_backend.h bhyve: Move lock of uart frontend to uart backend 2024-05-01 11:09:31 -04:00
uart_emul.c bhyve: Move lock of uart frontend to uart backend 2024-05-01 11:09:31 -04:00
uart_emul.h bhyve: Add PL011 UART emulation 2024-04-10 11:17:55 -04:00
uart_pl011.c bhyve: Move lock of uart frontend to uart backend 2024-05-01 11:09:31 -04:00
usb_emul.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
usb_emul.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00
usb_mouse.c Fix issue with Linux guest XHCI tablet probing. 2024-01-14 21:38:55 +10:00
virtio.c bhyve: avoid TOCTOU on iov_len in virtio_vq_recordon() 2024-09-27 10:20:53 -04:00
virtio.h usr.sbin: Remove repeated words 2024-04-11 11:53:37 -06:00
vmexit.h bhyve: Split vmexit handling into a separate file 2023-10-04 12:53:16 -04:00
vmgenc.c usr.sbin: Automated cleanup of cdefs and other formatting 2023-11-26 22:24:01 -07:00
vmgenc.h Remove $FreeBSD$: two-line .h pattern 2023-08-16 11:54:16 -06:00