[PATCH 1/5] virpci: Switch to an implementation using libpciaccess
The current virpci code uses the Linux-specific sysfs subsystem, which makes it impossible to use on other Unix-like systems. The libpciaccess library provides a cross-platform API for accessing the PCI bus. Employ it to make the code portable. This makes libpciaccess a non-optional dependency of libvirt. Signed-off-by: Alexander Shursha <kekek2@ya.ru> --- meson.build | 11 +- meson_options.txt | 4 +- src/meson.build | 1 + src/util/virpci.c | 465 +++++++++++---------------------------------- tests/virpcimock.c | 22 ++- 5 files changed, 139 insertions(+), 364 deletions(-) diff --git a/meson.build b/meson.build index 2d76a0846c..85bd882406 100644 --- a/meson.build +++ b/meson.build @@ -1207,7 +1207,10 @@ parallels_sdk_version = '7.0.22' parallels_sdk_dep = dependency('parallels-sdk', version: '>=' + parallels_sdk_version, required: false) pciaccess_version = '0.10.0' -pciaccess_dep = dependency('pciaccess', version: '>=' + pciaccess_version, required: get_option('pciaccess')) +pciaccess_dep = dependency('pciaccess', version: '>=' + pciaccess_version) +if not pciaccess_dep.found() + error('pciaccess is required to build libvirt') +endif rbd_dep = cc.find_library('rbd', required: get_option('storage_rbd')) rados_dep = cc.find_library('rados', required: get_option('storage_rbd')) @@ -1461,11 +1464,6 @@ if not get_option('polkit').disabled() endif endif -if udev_dep.found() and not pciaccess_dep.found() - error('You must install the pciaccess module to build with udev') -endif - - # build driver options remote_default_mode = get_option('remote_default_mode') @@ -2341,7 +2339,6 @@ libs_summary = { 'numactl': numactl_dep.found(), 'openwsman': openwsman_dep.found(), 'parallels-sdk': parallels_sdk_dep.found(), - 'pciaccess': pciaccess_dep.found(), 'polkit': conf.has('WITH_POLKIT'), 'rbd': rbd_dep.found(), 'readline': readline_dep.found(), diff --git a/meson_options.txt b/meson_options.txt index 3dc3e8667b..69605238ba 100644 --- a/meson_options.txt +++ b/meson_options.txt @@ -38,7 +38,6 @@ option('netcf', type: 'feature', value: 'auto', description: 'netcf support') option('nls', type: 'feature', value: 'auto', description: 'nls support') option('numactl', type: 'feature', value: 'auto', description: 'numactl support') option('openwsman', type: 'feature', value: 'auto', description: 'openwsman support') -option('pciaccess', type: 'feature', value: 'auto', description: 'pciaccess support') option('polkit', type: 'feature', value: 'auto', description: 'use PolicyKit for UNIX socket access checks') option('readline', type: 'feature', value: 'auto', description: 'readline support') option('sanlock', type: 'feature', value: 'auto', description: 'sanlock support') @@ -46,7 +45,6 @@ option('sasl', type: 'feature', value: 'auto', description: 'sasl support') option('selinux', type: 'feature', value: 'auto', description: 'selinux support') option('selinux_mount', type: 'string', value: '', description: 'set SELinux mount point') option('sshconfdir', type: 'string', value: '', description: 'directory for SSH client configuration') -# dep:pciaccess option('udev', type: 'feature', value: 'auto', description: 'udev support') # dep:driver_remote option('wireshark_dissector', type: 'feature', value: 'auto', description: 'wireshark support') @@ -59,7 +57,7 @@ option('driver_bhyve', type: 'feature', value: 'auto', description: 'bhyve drive option('driver_esx', type: 'feature', value: 'auto', description: 'esx driver') # dep:openwsman option('driver_hyperv', type: 'feature', value: 'auto', description: 'Hyper-V driver') -# dep:pciaccess dep:udev dep:driver_remote dep:driver_libvirtd +# dep:udev dep:driver_remote dep:driver_libvirtd option('driver_interface', type: 'feature', value: 'auto', description: 'host interface driver') # dep:driver_remote option('driver_libvirtd', type: 'feature', value: 'auto', description: 'libvirtd driver') diff --git a/src/meson.build b/src/meson.build index 9413192a55..39788ac4d7 100644 --- a/src/meson.build +++ b/src/meson.build @@ -411,6 +411,7 @@ libvirt_lib = shared_library( dtrace_gen_objects, dependencies: [ src_dep, + pciaccess_dep ], link_args: libvirt_link_args, link_whole: [ diff --git a/src/util/virpci.c b/src/util/virpci.c index 90617e69c6..b5bbe73ece 100644 --- a/src/util/virpci.c +++ b/src/util/virpci.c @@ -2,6 +2,7 @@ * virpci.c: helper APIs for managing host PCI devices * * Copyright (C) 2009-2015 Red Hat, Inc. + * Copyright (C) 2024-2025 Future Crew, LLC * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -29,6 +30,7 @@ #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> +#include <pciaccess.h> #ifdef __linux__ # include <sys/utsname.h> @@ -72,7 +74,7 @@ struct _virPCIDevice { char *name; /* domain:bus:slot.function */ char id[PCI_ID_LEN]; /* product vendor */ - char *path; + struct pci_device *device; /* The driver:domain which uses the device */ char *used_by_drvname; @@ -359,121 +361,6 @@ virPCIDeviceGetCurrentDriverNameAndType(virPCIDevice *dev, } -static int -virPCIDeviceConfigOpenInternal(virPCIDevice *dev, bool readonly, bool fatal) -{ - int fd; - - fd = open(dev->path, readonly ? O_RDONLY : O_RDWR); - - if (fd < 0) { - if (fatal) { - virReportSystemError(errno, - _("Failed to open config space file '%1$s'"), - dev->path); - } else { - VIR_WARN("Failed to open config space file '%s': %s", - dev->path, g_strerror(errno)); - } - return -1; - } - - VIR_DEBUG("%s %s: opened %s", dev->id, dev->name, dev->path); - return fd; -} - -static int -virPCIDeviceConfigOpen(virPCIDevice *dev) -{ - return virPCIDeviceConfigOpenInternal(dev, true, true); -} - -static int -virPCIDeviceConfigOpenTry(virPCIDevice *dev) -{ - return virPCIDeviceConfigOpenInternal(dev, true, false); -} - -static int -virPCIDeviceConfigOpenWrite(virPCIDevice *dev) -{ - return virPCIDeviceConfigOpenInternal(dev, false, true); -} - -static void -virPCIDeviceConfigClose(virPCIDevice *dev, int cfgfd) -{ - if (VIR_CLOSE(cfgfd) < 0) { - VIR_WARN("Failed to close config space file '%s': %s", - dev->path, g_strerror(errno)); - } -} - - -static int -virPCIDeviceRead(virPCIDevice *dev, - int cfgfd, - unsigned int pos, - uint8_t *buf, - unsigned int buflen) -{ - memset(buf, 0, buflen); - errno = 0; - - if (lseek(cfgfd, pos, SEEK_SET) != pos || - saferead(cfgfd, buf, buflen) != buflen) { - VIR_DEBUG("Failed to read %u bytes at %u from '%s' : %s", - buflen, pos, dev->path, g_strerror(errno)); - return -1; - } - return 0; -} - - -/** - * virPCIDeviceReadN: - * @dev: virPCIDevice object (used only to log name of config file) - * @cfgfd: open file descriptor for device config file in sysfs - * @pos: byte offset in the file to read from - * - * read "N" (where "N" is "8", "16", or "32", and appears at the end - * of the function name) bytes from a PCI device's already-opened - * sysfs config file and return them as the return value from the - * function. - * - * Returns the value at @pos in the file, or 0 if there was an - * error. NB: since 0 could be a valid value, occurrence of an error - * must be determined by examining errno. errno is always reset to 0 - * before the seek/read is attempted (see virPCIDeviceRead()), so if - * errno != 0 on return from one of these functions, then either the - * seek or the read operation failed for some reason. If errno == 0 - * and the return value is 0, then the config file really does contain - * the value 0 at @pos. - */ -static uint8_t -virPCIDeviceRead8(virPCIDevice *dev, int cfgfd, unsigned int pos) -{ - uint8_t buf; - virPCIDeviceRead(dev, cfgfd, pos, &buf, sizeof(buf)); - return buf; -} - -static uint16_t -virPCIDeviceRead16(virPCIDevice *dev, int cfgfd, unsigned int pos) -{ - uint8_t buf[2]; - virPCIDeviceRead(dev, cfgfd, pos, &buf[0], sizeof(buf)); - return (buf[0] << 0) | (buf[1] << 8); -} - -static uint32_t -virPCIDeviceRead32(virPCIDevice *dev, int cfgfd, unsigned int pos) -{ - uint8_t buf[4]; - virPCIDeviceRead(dev, cfgfd, pos, &buf[0], sizeof(buf)); - return (buf[0] << 0) | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24); -} - static int virPCIDeviceReadClass(virPCIDevice *dev, uint16_t *device_class) { @@ -499,36 +386,6 @@ virPCIDeviceReadClass(virPCIDevice *dev, uint16_t *device_class) return 0; } -static int -virPCIDeviceWrite(virPCIDevice *dev, - int cfgfd, - unsigned int pos, - uint8_t *buf, - unsigned int buflen) -{ - if (lseek(cfgfd, pos, SEEK_SET) != pos || - safewrite(cfgfd, buf, buflen) != buflen) { - VIR_WARN("Failed to write to '%s' : %s", dev->path, - g_strerror(errno)); - return -1; - } - return 0; -} - -static void -virPCIDeviceWrite16(virPCIDevice *dev, int cfgfd, unsigned int pos, uint16_t val) -{ - uint8_t buf[2] = { (val >> 0), (val >> 8) }; - virPCIDeviceWrite(dev, cfgfd, pos, &buf[0], sizeof(buf)); -} - -static void -virPCIDeviceWrite32(virPCIDevice *dev, int cfgfd, unsigned int pos, uint32_t val) -{ - uint8_t buf[4] = { (val >> 0), (val >> 8), (val >> 16), (val >> 24) }; - virPCIDeviceWrite(dev, cfgfd, pos, &buf[0], sizeof(buf)); -} - typedef int (*virPCIDeviceIterPredicate)(virPCIDevice *, virPCIDevice *, void *); @@ -610,7 +467,6 @@ virPCIDeviceIterDevices(virPCIDeviceIterPredicate predicate, */ static int virPCIDeviceFindCapabilityOffset(virPCIDevice *dev, - int cfgfd, unsigned int capability, unsigned int *offset) { @@ -619,11 +475,13 @@ virPCIDeviceFindCapabilityOffset(virPCIDevice *dev, *offset = 0; /* assume failure (*nothing* can be at offset 0) */ - status = virPCIDeviceRead16(dev, cfgfd, PCI_STATUS); + pci_device_cfg_read_u16(dev->device, &status, PCI_STATUS); + if (errno != 0 || !(status & PCI_STATUS_CAP_LIST)) goto error; - pos = virPCIDeviceRead8(dev, cfgfd, PCI_CAPABILITY_LIST); + pci_device_cfg_read_u8(dev->device, &pos, PCI_CAPABILITY_LIST); + if (errno != 0) goto error; @@ -635,7 +493,9 @@ virPCIDeviceFindCapabilityOffset(virPCIDevice *dev, * capabilities here. */ while (pos >= PCI_CONF_HEADER_LEN && pos != 0xff) { - uint8_t capid = virPCIDeviceRead8(dev, cfgfd, pos); + uint8_t capid; + pci_device_cfg_read_u8(dev->device, &capid, pos); + if (errno != 0) goto error; @@ -646,7 +506,8 @@ virPCIDeviceFindCapabilityOffset(virPCIDevice *dev, return 0; } - pos = virPCIDeviceRead8(dev, cfgfd, pos + 1); + pci_device_cfg_read_u8(dev->device, &pos, pos + 1); + if (errno != 0) goto error; } @@ -665,7 +526,6 @@ virPCIDeviceFindCapabilityOffset(virPCIDevice *dev, static unsigned int virPCIDeviceFindExtendedCapabilityOffset(virPCIDevice *dev, - int cfgfd, unsigned int capability) { int ttl; @@ -677,7 +537,7 @@ virPCIDeviceFindExtendedCapabilityOffset(virPCIDevice *dev, pos = PCI_EXT_CAP_BASE; while (ttl > 0 && pos >= PCI_EXT_CAP_BASE) { - header = virPCIDeviceRead32(dev, cfgfd, pos); + header = pci_device_cfg_read_u32(dev->device, &header, pos); if ((header & PCI_EXT_CAP_ID_MASK) == capability) return pos; @@ -693,7 +553,7 @@ virPCIDeviceFindExtendedCapabilityOffset(virPCIDevice *dev, * not have FLR, 1 if it does, and -1 on error */ static bool -virPCIDeviceDetectFunctionLevelReset(virPCIDevice *dev, int cfgfd) +virPCIDeviceDetectFunctionLevelReset(virPCIDevice *dev) { uint32_t caps; unsigned int pos; @@ -707,7 +567,7 @@ virPCIDeviceDetectFunctionLevelReset(virPCIDevice *dev, int cfgfd) * on SR-IOV NICs at the moment. */ if (dev->pcie_cap_pos) { - caps = virPCIDeviceRead32(dev, cfgfd, dev->pcie_cap_pos + PCI_EXP_DEVCAP); + pci_device_cfg_read_u32(dev->device, &caps, dev->pcie_cap_pos + PCI_EXP_DEVCAP); if (caps & PCI_EXP_DEVCAP_FLR) { VIR_DEBUG("%s %s: detected PCIe FLR capability", dev->id, dev->name); return true; @@ -718,11 +578,13 @@ virPCIDeviceDetectFunctionLevelReset(virPCIDevice *dev, int cfgfd) * the same thing, except for conventional PCI * devices. This is not common yet. */ - if (virPCIDeviceFindCapabilityOffset(dev, cfgfd, PCI_CAP_ID_AF, &pos) < 0) + if (virPCIDeviceFindCapabilityOffset(dev, PCI_CAP_ID_AF, &pos) < 0) goto error; if (pos) { - caps = virPCIDeviceRead16(dev, cfgfd, pos + PCI_AF_CAP); + uint16_t caps16; + pci_device_cfg_read_u16(dev->device, &caps16, pos + PCI_AF_CAP); + caps = caps16; if (caps & PCI_AF_CAP_FLR) { VIR_DEBUG("%s %s: detected PCI FLR capability", dev->id, dev->name); return true; @@ -754,13 +616,13 @@ virPCIDeviceDetectFunctionLevelReset(virPCIDevice *dev, int cfgfd) * internal reset, not just a soft reset. */ static bool -virPCIDeviceDetectPowerManagementReset(virPCIDevice *dev, int cfgfd) +virPCIDeviceDetectPowerManagementReset(virPCIDevice *dev) { if (dev->pci_pm_cap_pos) { uint32_t ctl; /* require the NO_SOFT_RESET bit is clear */ - ctl = virPCIDeviceRead32(dev, cfgfd, dev->pci_pm_cap_pos + PCI_PM_CTRL); + pci_device_cfg_read_u32(dev->device, &ctl, dev->pci_pm_cap_pos + PCI_PM_CTRL); if (!(ctl & PCI_PM_CTRL_NO_SOFT_RESET)) { VIR_DEBUG("%s %s: detected PM reset capability", dev->id, dev->name); return true; @@ -811,26 +673,22 @@ virPCIDeviceIsParent(virPCIDevice *dev, virPCIDevice *check, void *data) uint8_t header_type, secondary, subordinate; virPCIDevice **best = data; int ret = 0; - int fd; if (dev->address.domain != check->address.domain) return 0; - if ((fd = virPCIDeviceConfigOpenTry(check)) < 0) - return 0; - /* Is it a bridge? */ ret = virPCIDeviceReadClass(check, &device_class); if (ret < 0 || device_class != PCI_CLASS_BRIDGE_PCI) - goto cleanup; + return ret; /* Is it a plane? */ - header_type = virPCIDeviceRead8(check, fd, PCI_HEADER_TYPE); + pci_device_cfg_read_u8(check->device, &header_type, PCI_HEADER_TYPE); if ((header_type & PCI_HEADER_TYPE_MASK) != PCI_HEADER_TYPE_BRIDGE) - goto cleanup; + return ret; - secondary = virPCIDeviceRead8(check, fd, PCI_SECONDARY_BUS); - subordinate = virPCIDeviceRead8(check, fd, PCI_SUBORDINATE_BUS); + pci_device_cfg_read_u8(check->device, &secondary, PCI_SECONDARY_BUS); + pci_device_cfg_read_u8(check->device, &subordinate, PCI_SUBORDINATE_BUS); VIR_DEBUG("%s %s: found parent device %s", dev->id, dev->name, check->name); @@ -838,8 +696,7 @@ virPCIDeviceIsParent(virPCIDevice *dev, virPCIDevice *check, void *data) * the direct parent. No further work is necessary */ if (dev->address.bus == secondary) { - ret = 1; - goto cleanup; + return 1; } /* otherwise, SRIOV allows VFs to be on different buses than their PFs. @@ -850,35 +707,26 @@ virPCIDeviceIsParent(virPCIDevice *dev, virPCIDevice *check, void *data) if (*best == NULL) { *best = virPCIDeviceNew(&check->address); if (*best == NULL) { - ret = -1; - goto cleanup; + return -1; } } else { /* OK, we had already recorded a previous "best" match for the * parent. See if the current device is more restrictive than the * best, and if so, make it the new best */ - int bestfd; uint8_t best_secondary; - if ((bestfd = virPCIDeviceConfigOpenTry(*best)) < 0) - goto cleanup; - best_secondary = virPCIDeviceRead8(*best, bestfd, PCI_SECONDARY_BUS); - virPCIDeviceConfigClose(*best, bestfd); + pci_device_cfg_read_u8((*best)->device, &best_secondary, PCI_SECONDARY_BUS); if (secondary > best_secondary) { virPCIDeviceFree(*best); *best = virPCIDeviceNew(&check->address); if (*best == NULL) { - ret = -1; - goto cleanup; + return -1; } } } } - - cleanup: - virPCIDeviceConfigClose(check, fd); return ret; } @@ -902,15 +750,14 @@ virPCIDeviceGetParent(virPCIDevice *dev, virPCIDevice **parent) */ static int virPCIDeviceTrySecondaryBusReset(virPCIDevice *dev, - int cfgfd, virPCIDeviceList *inactiveDevs) { g_autoptr(virPCIDevice) parent = NULL; g_autoptr(virPCIDevice) conflict = NULL; uint8_t config_space[PCI_CONF_LEN]; uint16_t ctl; - int ret = -1; - int parentfd; + pciaddr_t bytes_read; + pciaddr_t bytes_written; /* Refuse to do a secondary bus reset if there are other * devices/functions behind the bus are used by the host @@ -932,8 +779,6 @@ virPCIDeviceTrySecondaryBusReset(virPCIDevice *dev, dev->name); return -1; } - if ((parentfd = virPCIDeviceConfigOpenWrite(parent)) < 0) - goto out; VIR_DEBUG("%s %s: doing a secondary bus reset", dev->id, dev->name); @@ -941,38 +786,37 @@ virPCIDeviceTrySecondaryBusReset(virPCIDevice *dev, * for the supplied device since we refuse to do a reset if there * are multiple devices/functions */ - if (virPCIDeviceRead(dev, cfgfd, 0, config_space, PCI_CONF_LEN) < 0) { + pci_device_cfg_read(dev->device, config_space, 0, PCI_CONF_LEN, &bytes_read); + if (bytes_read < PCI_CONF_LEN) { virReportError(VIR_ERR_INTERNAL_ERROR, _("Failed to read PCI config space for %1$s"), dev->name); - goto out; + return -1; } /* Read the control register, set the reset flag, wait 200ms, * unset the reset flag and wait 200ms. */ - ctl = virPCIDeviceRead16(dev, parentfd, PCI_BRIDGE_CONTROL); - virPCIDeviceWrite16(parent, parentfd, PCI_BRIDGE_CONTROL, - ctl | PCI_BRIDGE_CTL_RESET); + pci_device_cfg_read_u16(parent->device, &ctl, PCI_BRIDGE_CONTROL); + + pci_device_cfg_write_u16(parent->device, ctl | PCI_BRIDGE_CTL_RESET, PCI_BRIDGE_CONTROL); g_usleep(200 * 1000); /* sleep 200ms */ - virPCIDeviceWrite16(parent, parentfd, PCI_BRIDGE_CONTROL, ctl); + pci_device_cfg_write_u16(parent->device, ctl, PCI_BRIDGE_CONTROL); g_usleep(200 * 1000); /* sleep 200ms */ - if (virPCIDeviceWrite(dev, cfgfd, 0, config_space, PCI_CONF_LEN) < 0) { + pci_device_cfg_write(dev->device, config_space, 0, PCI_CONF_LEN, &bytes_written); + if (bytes_written < PCI_CONF_LEN) { virReportError(VIR_ERR_INTERNAL_ERROR, _("Failed to restore PCI config space for %1$s"), dev->name); - goto out; + return -1; } - ret = 0; - out: - virPCIDeviceConfigClose(parent, parentfd); - return ret; + return 0; } /* Power management reset attempts to reset a device using a @@ -980,16 +824,19 @@ virPCIDeviceTrySecondaryBusReset(virPCIDevice *dev, * above we require the device supports a full internal reset. */ static int -virPCIDeviceTryPowerManagementReset(virPCIDevice *dev, int cfgfd) +virPCIDeviceTryPowerManagementReset(virPCIDevice *dev) { uint8_t config_space[PCI_CONF_LEN]; uint32_t ctl; + pciaddr_t bytes_read; + pciaddr_t bytes_written; if (!dev->pci_pm_cap_pos) return -1; /* Save and restore the device's config space. */ - if (virPCIDeviceRead(dev, cfgfd, 0, &config_space[0], PCI_CONF_LEN) < 0) { + pci_device_cfg_read(dev->device, config_space, 0, PCI_CONF_LEN, &bytes_read); + if (bytes_read < PCI_CONF_LEN) { virReportError(VIR_ERR_INTERNAL_ERROR, _("Failed to read PCI config space for %1$s"), dev->name); @@ -998,20 +845,19 @@ virPCIDeviceTryPowerManagementReset(virPCIDevice *dev, int cfgfd) VIR_DEBUG("%s %s: doing a power management reset", dev->id, dev->name); - ctl = virPCIDeviceRead32(dev, cfgfd, dev->pci_pm_cap_pos + PCI_PM_CTRL); + pci_device_cfg_read_u32(dev->device, &ctl, dev->pci_pm_cap_pos + PCI_PM_CTRL); ctl &= ~PCI_PM_CTRL_STATE_MASK; - virPCIDeviceWrite32(dev, cfgfd, dev->pci_pm_cap_pos + PCI_PM_CTRL, - ctl | PCI_PM_CTRL_STATE_D3hot); + pci_device_cfg_write_u32(dev->device, ctl | PCI_PM_CTRL_STATE_D3hot, dev->pci_pm_cap_pos + PCI_PM_CTRL); g_usleep(10 * 1000); /* sleep 10ms */ - virPCIDeviceWrite32(dev, cfgfd, dev->pci_pm_cap_pos + PCI_PM_CTRL, - ctl | PCI_PM_CTRL_STATE_D0); + pci_device_cfg_write_u32(dev->device, ctl | PCI_PM_CTRL_STATE_D0, dev->pci_pm_cap_pos + PCI_PM_CTRL); g_usleep(10 * 1000); /* sleep 10ms */ - if (virPCIDeviceWrite(dev, cfgfd, 0, &config_space[0], PCI_CONF_LEN) < 0) { + pci_device_cfg_write(dev->device, config_space, 0, PCI_CONF_LEN, &bytes_written); + if (bytes_written < PCI_CONF_LEN) { virReportError(VIR_ERR_INTERNAL_ERROR, _("Failed to restore PCI config space for %1$s"), dev->name); @@ -1046,10 +892,10 @@ virPCIDeviceTryPowerManagementReset(virPCIDevice *dev, int cfgfd) * Always returns success (0) (for now) */ static int -virPCIDeviceInit(virPCIDevice *dev, int cfgfd) +virPCIDeviceInit(virPCIDevice *dev) { dev->is_pcie = false; - if (virPCIDeviceFindCapabilityOffset(dev, cfgfd, PCI_CAP_ID_EXP, &dev->pcie_cap_pos) < 0) { + if (virPCIDeviceFindCapabilityOffset(dev, PCI_CAP_ID_EXP, &dev->pcie_cap_pos) < 0) { /* an unprivileged process is unable to read *all* of a * device's PCI config (it can only read the first 64 * bytes, which isn't enough for see the Express @@ -1065,18 +911,13 @@ virPCIDeviceInit(virPCIDevice *dev, int cfgfd) * -1), then we blindly assume the most likely outcome - * PCIe. */ - off_t configLen = virFileLength(virPCIDeviceGetConfigPath(dev), -1); - - if (configLen != 256) - dev->is_pcie = true; - } else { dev->is_pcie = (dev->pcie_cap_pos != 0); } - virPCIDeviceFindCapabilityOffset(dev, cfgfd, PCI_CAP_ID_PM, &dev->pci_pm_cap_pos); - dev->has_flr = virPCIDeviceDetectFunctionLevelReset(dev, cfgfd); - dev->has_pm_reset = virPCIDeviceDetectPowerManagementReset(dev, cfgfd); + virPCIDeviceFindCapabilityOffset(dev, PCI_CAP_ID_PM, &dev->pci_pm_cap_pos); + dev->has_flr = virPCIDeviceDetectFunctionLevelReset(dev); + dev->has_pm_reset = virPCIDeviceDetectPowerManagementReset(dev); return 0; } @@ -1089,7 +930,6 @@ virPCIDeviceReset(virPCIDevice *dev, g_autofree char *drvName = NULL; virPCIStubDriver drvType; int ret = -1; - int fd = -1; int hdrType = -1; if (virPCIGetHeaderType(dev, &hdrType) < 0) @@ -1114,29 +954,26 @@ virPCIDeviceReset(virPCIDevice *dev, * be redundant. */ if (virPCIDeviceGetCurrentDriverNameAndType(dev, &drvName, &drvType) < 0) - goto cleanup; + return -1; if (drvType == VIR_PCI_STUB_DRIVER_VFIO) { VIR_DEBUG("Device %s is bound to %s - skip reset", dev->name, drvName); ret = 0; - goto cleanup; + return 0; } VIR_DEBUG("Resetting device %s", dev->name); - if ((fd = virPCIDeviceConfigOpenWrite(dev)) < 0) - goto cleanup; - - if (virPCIDeviceInit(dev, fd) < 0) - goto cleanup; + if (virPCIDeviceInit(dev) < 0) + return -1; /* KVM will perform FLR when starting and stopping * a guest, so there is no need for us to do it here. */ if (dev->has_flr) { ret = 0; - goto cleanup; + return 0; } /* If the device supports PCI power management reset, @@ -1144,11 +981,11 @@ virPCIDeviceReset(virPCIDevice *dev, * the function, not the whole device. */ if (dev->has_pm_reset) - ret = virPCIDeviceTryPowerManagementReset(dev, fd); + ret = virPCIDeviceTryPowerManagementReset(dev); /* Bus reset is not an option with the root bus */ if (ret < 0 && dev->address.bus != 0) - ret = virPCIDeviceTrySecondaryBusReset(dev, fd, inactiveDevs); + ret = virPCIDeviceTrySecondaryBusReset(dev, inactiveDevs); if (ret < 0) { virErrorPtr err = virGetLastError(); @@ -1159,8 +996,6 @@ virPCIDeviceReset(virPCIDevice *dev, _("no FLR, PM reset or bus reset available")); } - cleanup: - virPCIDeviceConfigClose(dev, fd); return ret; } @@ -1756,28 +1591,6 @@ virPCIDeviceReattach(virPCIDevice *dev, return 0; } -static char * -virPCIDeviceReadID(virPCIDevice *dev, const char *id_name) -{ - g_autofree char *path = NULL; - g_autofree char *id_str = NULL; - - path = virPCIFile(dev->name, id_name); - - /* ID string is '0xNNNN\n' ... i.e. 7 bytes */ - if (virFileReadAll(path, 7, &id_str) < 0) - return NULL; - - /* Check for 0x suffix */ - if (id_str[0] != '0' || id_str[1] != 'x') - return NULL; - - /* Chop off the newline; we know the string is 7 bytes */ - id_str[6] = '\0'; - - return g_steal_pointer(&id_str); -} - bool virPCIDeviceAddressIsValid(virPCIDeviceAddress *addr, bool report) @@ -1865,9 +1678,9 @@ virPCIDeviceExists(const virPCIDeviceAddress *addr) virPCIDevice * virPCIDeviceNew(const virPCIDeviceAddress *address) { + struct pci_device * device; + g_autoptr(virPCIDevice) dev = NULL; - g_autofree char *vendor = NULL; - g_autofree char *product = NULL; dev = g_new0(virPCIDevice, 1); @@ -1875,31 +1688,21 @@ virPCIDeviceNew(const virPCIDeviceAddress *address) dev->name = virPCIDeviceAddressAsString(&dev->address); - dev->path = g_strdup_printf(PCI_SYSFS "devices/%s/config", dev->name); - - if (!virFileExists(dev->path)) { - virReportSystemError(errno, - _("Device %1$s not found: could not access %2$s"), - dev->name, dev->path); + pci_system_init(); + device = pci_device_find_by_slot(address->domain, address->bus, address->slot, address->function); + if (!device) return NULL; - } - - vendor = virPCIDeviceReadID(dev, "vendor"); - product = virPCIDeviceReadID(dev, "device"); - - if (!vendor || !product) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Failed to read product/vendor ID for %1$s"), - dev->name); + dev->device = g_memdup(device, sizeof(*dev->device)); + if (!dev->device) { + virReportSystemError(errno, + _("Not found device domain: %1$d, bus: %2$d, slot: %3$d, function: %4$d"), + address->domain, address->bus, address->slot, address->function); return NULL; } - - /* strings contain '0x' prefix */ - if (g_snprintf(dev->id, sizeof(dev->id), "%s %s", &vendor[2], - &product[2]) >= sizeof(dev->id)) { + if (g_snprintf(dev->id, sizeof(dev->id), "%x %x", dev->device->vendor_id, dev->device->device_id) >= sizeof(dev->id)) { virReportError(VIR_ERR_INTERNAL_ERROR, - _("dev->id buffer overflow: %1$s %2$s"), - &vendor[2], &product[2]); + _("dev->id buffer overflow: %1$d %2$d"), + dev->device->vendor_id, dev->device->device_id); return NULL; } @@ -1918,10 +1721,10 @@ virPCIDeviceCopy(virPCIDevice *dev) /* shallow copy to take care of most attributes */ *copy = *dev; - copy->path = NULL; - copy->used_by_drvname = copy->used_by_domname = NULL; + copy->device = NULL; + copy->device = g_memdup(dev->device, sizeof(*dev->device)); + copy->name = copy->used_by_drvname = copy->used_by_domname = copy->stubDriverName = NULL; copy->name = g_strdup(dev->name); - copy->path = g_strdup(dev->path); copy->used_by_drvname = g_strdup(dev->used_by_drvname); copy->used_by_domname = g_strdup(dev->used_by_domname); copy->stubDriverName = g_strdup(dev->stubDriverName); @@ -1936,10 +1739,11 @@ virPCIDeviceFree(virPCIDevice *dev) return; VIR_DEBUG("%s %s: freeing", dev->id, dev->name); g_free(dev->name); - g_free(dev->path); g_free(dev->used_by_drvname); g_free(dev->used_by_domname); g_free(dev->stubDriverName); + if (dev->device) + g_free(dev->device); g_free(dev); } @@ -1971,9 +1775,9 @@ virPCIDeviceGetName(virPCIDevice *dev) * config file. */ const char * -virPCIDeviceGetConfigPath(virPCIDevice *dev) +virPCIDeviceGetConfigPath(virPCIDevice *dev G_GNUC_UNUSED) { - return dev->path; + return NULL; } void virPCIDeviceSetManaged(virPCIDevice *dev, bool managed) @@ -2484,47 +2288,37 @@ virPCIDeviceDownstreamLacksACS(virPCIDevice *dev) uint16_t flags; uint16_t ctrl; unsigned int pos; - int fd; - int ret = 0; uint16_t device_class; - if ((fd = virPCIDeviceConfigOpen(dev)) < 0) + if (virPCIDeviceInit(dev) < 0) { return -1; - - if (virPCIDeviceInit(dev, fd) < 0) { - ret = -1; - goto cleanup; } if (virPCIDeviceReadClass(dev, &device_class) < 0) - goto cleanup; + return 0; pos = dev->pcie_cap_pos; if (!pos || device_class != PCI_CLASS_BRIDGE_PCI) - goto cleanup; + return 0; - flags = virPCIDeviceRead16(dev, fd, pos + PCI_EXP_FLAGS); + pci_device_cfg_read_u16(dev->device, &flags, pos + PCI_EXP_FLAGS); if (((flags & PCI_EXP_FLAGS_TYPE) >> 4) != PCI_EXP_TYPE_DOWNSTREAM) - goto cleanup; + return 0; - pos = virPCIDeviceFindExtendedCapabilityOffset(dev, fd, PCI_EXT_CAP_ID_ACS); + pos = virPCIDeviceFindExtendedCapabilityOffset(dev, PCI_EXT_CAP_ID_ACS); if (!pos) { VIR_DEBUG("%s %s: downstream port lacks ACS", dev->id, dev->name); - ret = 1; - goto cleanup; + return 1; } - ctrl = virPCIDeviceRead16(dev, fd, pos + PCI_EXT_ACS_CTRL); + pci_device_cfg_read_u16(dev->device, &ctrl, pos + PCI_EXT_ACS_CTRL); if ((ctrl & PCI_EXT_CAP_ACS_ENABLED) != PCI_EXT_CAP_ACS_ENABLED) { VIR_DEBUG("%s %s: downstream port has ACS disabled", dev->id, dev->name); - ret = 1; - goto cleanup; + return 1; } - cleanup: - virPCIDeviceConfigClose(dev, fd); - return ret; + return 0; } static int @@ -3189,48 +2983,27 @@ virPCIDeviceGetVPD(virPCIDevice *dev G_GNUC_UNUSED) int virPCIDeviceIsPCIExpress(virPCIDevice *dev) { - int fd; - int ret = -1; - - if ((fd = virPCIDeviceConfigOpen(dev)) < 0) - return ret; - - if (virPCIDeviceInit(dev, fd) < 0) - goto cleanup; - - ret = dev->is_pcie; + if (virPCIDeviceInit(dev) < 0) + return -1; - cleanup: - virPCIDeviceConfigClose(dev, fd); - return ret; + return dev->is_pcie; } int virPCIDeviceHasPCIExpressLink(virPCIDevice *dev) { - int fd; - int ret = -1; uint16_t cap, type; - - if ((fd = virPCIDeviceConfigOpen(dev)) < 0) - return ret; - - if (virPCIDeviceInit(dev, fd) < 0) - goto cleanup; + if (virPCIDeviceInit(dev) < 0) + return -1; if (dev->pcie_cap_pos == 0) { - ret = 0; - goto cleanup; + return 0; } - cap = virPCIDeviceRead16(dev, fd, dev->pcie_cap_pos + PCI_CAP_FLAGS); + pci_device_cfg_read_u16(dev->device, &cap, dev->pcie_cap_pos + PCI_CAP_FLAGS); type = (cap & PCI_EXP_FLAGS_TYPE) >> 4; - ret = type != PCI_EXP_TYPE_ROOT_INT_EP && type != PCI_EXP_TYPE_ROOT_EC; - - cleanup: - virPCIDeviceConfigClose(dev, fd); - return ret; + return type != PCI_EXP_TYPE_ROOT_INT_EP && type != PCI_EXP_TYPE_ROOT_EC; } int @@ -3242,53 +3015,39 @@ virPCIDeviceGetLinkCapSta(virPCIDevice *dev, unsigned int *sta_width) { uint32_t t; - int fd; - int ret = -1; - - if ((fd = virPCIDeviceConfigOpen(dev)) < 0) - return ret; - - if (virPCIDeviceInit(dev, fd) < 0) - goto cleanup; + uint16_t t16; + if (virPCIDeviceInit(dev) < 0) + return -1; if (!dev->pcie_cap_pos) { virReportError(VIR_ERR_INTERNAL_ERROR, _("pci device %1$s is not a PCI-Express device"), dev->name); - goto cleanup; + return -1; } - t = virPCIDeviceRead32(dev, fd, dev->pcie_cap_pos + PCI_EXP_LNKCAP); + pci_device_cfg_read_u32(dev->device, &t, dev->pcie_cap_pos + PCI_EXP_LNKCAP); *cap_port = t >> 24; *cap_speed = t & PCI_EXP_LNKCAP_SPEED; *cap_width = (t & PCI_EXP_LNKCAP_WIDTH) >> 4; - t = virPCIDeviceRead16(dev, fd, dev->pcie_cap_pos + PCI_EXP_LNKSTA); + pci_device_cfg_read_u16(dev->device, &t16, dev->pcie_cap_pos + PCI_EXP_LNKSTA); + t = t16; *sta_speed = t & PCI_EXP_LNKSTA_SPEED; *sta_width = (t & PCI_EXP_LNKSTA_WIDTH) >> 4; - ret = 0; - - cleanup: - virPCIDeviceConfigClose(dev, fd); - return ret; + return 0; } int virPCIGetHeaderType(virPCIDevice *dev, int *hdrType) { - int fd; uint8_t type; *hdrType = -1; - if ((fd = virPCIDeviceConfigOpen(dev)) < 0) - return -1; - - type = virPCIDeviceRead8(dev, fd, PCI_HEADER_TYPE); - - virPCIDeviceConfigClose(dev, fd); + pci_device_cfg_read_u8(dev->device, &type, PCI_HEADER_TYPE); type &= PCI_HEADER_TYPE_MASK; if (type >= VIR_PCI_HEADER_LAST) { diff --git a/tests/virpcimock.c b/tests/virpcimock.c index 5b923c63ce..36bb57edb0 100644 --- a/tests/virpcimock.c +++ b/tests/virpcimock.c @@ -1,5 +1,6 @@ /* * Copyright (C) 2013 Red Hat, Inc. + * Copyright (C) 2024-2025 Future Crew, LLC * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -22,7 +23,7 @@ #include "virpcivpdpriv.h" -#if defined(__linux__) || defined(__FreeBSD__) || defined(__APPLE__) +#if defined(__linux__) || defined(__APPLE__) # define VIR_MOCK_LOOKUP_MAIN # include "virmock.h" # include "virpci.h" @@ -42,6 +43,10 @@ static int (*real___open_2)(const char *path, int flags); static int (*real_close)(int fd); static DIR * (*real_opendir)(const char *name); static char *(*real_virFileCanonicalizePath)(const char *path); +static int (*real_scandir)(const char *restrict dirp, + struct dirent ***restrict namelist, + typeof(int(const struct dirent *)) *filter, + typeof(int(const struct dirent **, const struct dirent **)) *compar); static char *fakerootdir; @@ -955,6 +960,7 @@ init_syms(void) VIR_MOCK_REAL_INIT(opendir); # endif VIR_MOCK_REAL_INIT(virFileCanonicalizePath); + VIR_MOCK_REAL_INIT(scandir); } static void @@ -1172,6 +1178,20 @@ virFileCanonicalizePath(const char *path) return real_virFileCanonicalizePath(newpath); } +int scandir(const char *restrict dirp, struct dirent ***restrict namelist, + typeof(int(const struct dirent *)) *filter, + typeof(int(const struct dirent **, const struct dirent **)) *compar) +{ + g_autofree char *newpath = NULL; + + init_syms(); + + if (getrealpath(&newpath, dirp) < 0) + return -1; + + return real_scandir(newpath, namelist, filter, compar); +} + # include "virmockstathelpers.c" #else -- 2.46.1
The code was under #ifdef __linux__ because of sysfs usage. It is now using libpciaccess, which makes it available for, at least, FreeBSD. Signed-off-by: Alexander Shursha <kekek2@ya.ru> --- src/conf/node_device_conf.c | 2 +- src/node_device/node_device_driver.c | 2 +- src/node_device/node_device_udev.c | 2 ++ src/util/virmdev.c | 2 +- src/util/virpci.c | 2 +- 5 files changed, 6 insertions(+), 4 deletions(-) diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c index 9c7982c680..ec5d980978 100644 --- a/src/conf/node_device_conf.c +++ b/src/conf/node_device_conf.c @@ -3107,7 +3107,7 @@ virNodeDeviceSyncMdevActiveConfig(virNodeDeviceDef *def) } } -#ifdef __linux__ +#if defined(__linux__) || defined(__FreeBSD__) int virNodeDeviceGetSCSIHostCaps(virNodeDevCapSCSIHost *scsi_host) diff --git a/src/node_device/node_device_driver.c b/src/node_device/node_device_driver.c index 123b16a292..592f72fe52 100644 --- a/src/node_device/node_device_driver.c +++ b/src/node_device/node_device_driver.c @@ -111,7 +111,7 @@ int nodeConnectIsAlive(virConnectPtr conn G_GNUC_UNUSED) return 1; } -#if defined (__linux__) && defined(WITH_UDEV) +#if (defined(__linux__) || defined(__FreeBSD__)) && defined(WITH_UDEV) /* NB: It was previously believed that changes in driver name were * relayed to libvirt as "change" events by udev, and the udev event * notification is setup to recognize such events and effectively diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c index 30c2ddf568..40c8ab14b1 100644 --- a/src/node_device/node_device_udev.c +++ b/src/node_device/node_device_udev.c @@ -431,6 +431,7 @@ udevProcessPCI(virNodeDeviceDriverState *driver_state, int ret = -1; char *p; +#ifndef __FreeBSD__ linkpath = g_strdup_printf("%s/config", udev_device_get_syspath(device)); if (virFileWaitForExists(linkpath, 10, 100) < 0) { virReportSystemError(errno, @@ -438,6 +439,7 @@ udevProcessPCI(virNodeDeviceDriverState *driver_state, linkpath); goto cleanup; } +#endif pci_dev->klass = -1; if (udevGetIntProperty(device, "PCI_CLASS", &pci_dev->klass, 16) < 0) diff --git a/src/util/virmdev.c b/src/util/virmdev.c index 6ecdbdf0ab..3a07ba75f2 100644 --- a/src/util/virmdev.c +++ b/src/util/virmdev.c @@ -565,7 +565,7 @@ virMediatedDeviceParentGetAddress(const char *sysfspath, return -1; } -#ifdef __linux__ +#if defined(__linux__) || defined(__FreeBSD__) ssize_t virMediatedDeviceGetMdevTypes(const char *sysfspath, diff --git a/src/util/virpci.c b/src/util/virpci.c index b5bbe73ece..12af206f13 100644 --- a/src/util/virpci.c +++ b/src/util/virpci.c @@ -2483,7 +2483,7 @@ virPCIGetVirtualFunctions(const char *sysfs_path, } -#ifdef __linux__ +#if defined(__linux__) || defined(__FreeBSD__) virPCIDeviceAddress * virPCIGetDeviceAddressFromSysfsLink(const char *device_link) -- 2.46.1
bhyve itself had this feature long ago, but enabling it was blocked by Linux-specific code in virpci Signed-off-by: Alexander Shursha <kekek2@ya.ru> --- src/bhyve/bhyve_capabilities.c | 2 +- tests/domaincapsdata/bhyve_basic.x86_64.xml | 3 ++- tests/domaincapsdata/bhyve_fbuf.x86_64.xml | 3 ++- tests/domaincapsdata/bhyve_uefi.x86_64.xml | 3 ++- 4 files changed, 7 insertions(+), 4 deletions(-) diff --git a/src/bhyve/bhyve_capabilities.c b/src/bhyve/bhyve_capabilities.c index b065256cf0..fcef91c435 100644 --- a/src/bhyve/bhyve_capabilities.c +++ b/src/bhyve/bhyve_capabilities.c @@ -108,7 +108,7 @@ virBhyveDomainCapsFill(virDomainCaps *caps, VIR_DOMAIN_CAPS_ENUM_SET(caps->video.modelType, VIR_DOMAIN_VIDEO_TYPE_GOP); } - caps->hostdev.supported = VIR_TRISTATE_BOOL_NO; + caps->hostdev.supported = VIR_TRISTATE_BOOL_YES; caps->features[VIR_DOMAIN_CAPS_FEATURE_IOTHREADS] = VIR_TRISTATE_BOOL_NO; caps->features[VIR_DOMAIN_CAPS_FEATURE_VMCOREINFO] = VIR_TRISTATE_BOOL_NO; caps->features[VIR_DOMAIN_CAPS_FEATURE_GENID] = VIR_TRISTATE_BOOL_NO; diff --git a/tests/domaincapsdata/bhyve_basic.x86_64.xml b/tests/domaincapsdata/bhyve_basic.x86_64.xml index dd054577c0..fb9bf54a92 100644 --- a/tests/domaincapsdata/bhyve_basic.x86_64.xml +++ b/tests/domaincapsdata/bhyve_basic.x86_64.xml @@ -26,7 +26,8 @@ </disk> <graphics supported='no'/> <video supported='no'/> - <hostdev supported='no'/> + <hostdev supported='yes'> + </hostdev> </devices> <features> <gic supported='no'/> diff --git a/tests/domaincapsdata/bhyve_fbuf.x86_64.xml b/tests/domaincapsdata/bhyve_fbuf.x86_64.xml index 0b1d9c17d7..1ec5706aed 100644 --- a/tests/domaincapsdata/bhyve_fbuf.x86_64.xml +++ b/tests/domaincapsdata/bhyve_fbuf.x86_64.xml @@ -43,7 +43,8 @@ <value>gop</value> </enum> </video> - <hostdev supported='no'/> + <hostdev supported='yes'> + </hostdev> </devices> <features> <gic supported='no'/> diff --git a/tests/domaincapsdata/bhyve_uefi.x86_64.xml b/tests/domaincapsdata/bhyve_uefi.x86_64.xml index 69fff197a7..f76cf91acb 100644 --- a/tests/domaincapsdata/bhyve_uefi.x86_64.xml +++ b/tests/domaincapsdata/bhyve_uefi.x86_64.xml @@ -35,7 +35,8 @@ </disk> <graphics supported='no'/> <video supported='no'/> - <hostdev supported='no'/> + <hostdev supported='yes'> + </hostdev> </devices> <features> <gic supported='no'/> -- 2.46.1
Alexander Shursha wrote:
bhyve itself had this feature long ago, but enabling it was blocked by Linux-specific code in virpci
Signed-off-by: Alexander Shursha <kekek2@ya.ru> --- src/bhyve/bhyve_capabilities.c | 2 +- tests/domaincapsdata/bhyve_basic.x86_64.xml | 3 ++- tests/domaincapsdata/bhyve_fbuf.x86_64.xml | 3 ++- tests/domaincapsdata/bhyve_uefi.x86_64.xml | 3 ++- 4 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/src/bhyve/bhyve_capabilities.c b/src/bhyve/bhyve_capabilities.c index b065256cf0..fcef91c435 100644 --- a/src/bhyve/bhyve_capabilities.c +++ b/src/bhyve/bhyve_capabilities.c @@ -108,7 +108,7 @@ virBhyveDomainCapsFill(virDomainCaps *caps, VIR_DOMAIN_CAPS_ENUM_SET(caps->video.modelType, VIR_DOMAIN_VIDEO_TYPE_GOP); }
- caps->hostdev.supported = VIR_TRISTATE_BOOL_NO; + caps->hostdev.supported = VIR_TRISTATE_BOOL_YES; caps->features[VIR_DOMAIN_CAPS_FEATURE_IOTHREADS] = VIR_TRISTATE_BOOL_NO; caps->features[VIR_DOMAIN_CAPS_FEATURE_VMCOREINFO] = VIR_TRISTATE_BOOL_NO; caps->features[VIR_DOMAIN_CAPS_FEATURE_GENID] = VIR_TRISTATE_BOOL_NO; diff --git a/tests/domaincapsdata/bhyve_basic.x86_64.xml b/tests/domaincapsdata/bhyve_basic.x86_64.xml index dd054577c0..fb9bf54a92 100644 --- a/tests/domaincapsdata/bhyve_basic.x86_64.xml +++ b/tests/domaincapsdata/bhyve_basic.x86_64.xml @@ -26,7 +26,8 @@ </disk> <graphics supported='no'/> <video supported='no'/> - <hostdev supported='no'/> + <hostdev supported='yes'> + </hostdev> </devices> <features> <gic supported='no'/> diff --git a/tests/domaincapsdata/bhyve_fbuf.x86_64.xml b/tests/domaincapsdata/bhyve_fbuf.x86_64.xml index 0b1d9c17d7..1ec5706aed 100644 --- a/tests/domaincapsdata/bhyve_fbuf.x86_64.xml +++ b/tests/domaincapsdata/bhyve_fbuf.x86_64.xml @@ -43,7 +43,8 @@ <value>gop</value> </enum> </video> - <hostdev supported='no'/> + <hostdev supported='yes'> + </hostdev> </devices> <features> <gic supported='no'/> diff --git a/tests/domaincapsdata/bhyve_uefi.x86_64.xml b/tests/domaincapsdata/bhyve_uefi.x86_64.xml index 69fff197a7..f76cf91acb 100644 --- a/tests/domaincapsdata/bhyve_uefi.x86_64.xml +++ b/tests/domaincapsdata/bhyve_uefi.x86_64.xml @@ -35,7 +35,8 @@ </disk> <graphics supported='no'/> <video supported='no'/> - <hostdev supported='no'/> + <hostdev supported='yes'> + </hostdev> </devices> <features> <gic supported='no'/> -- 2.46.1
Reviewed-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
It is used to pass a PCI device from the host to a bhyve guest Signed-off-by: Alexander Shursha <kekek2@ya.ru> --- src/bhyve/bhyve_command.c | 24 ++++++++++++++++ .../bhyvexml2argv-passthru.args | 9 ++++++ .../bhyvexml2argv-passthru.ldargs | 4 +++ .../bhyvexml2argv-passthru.xml | 28 +++++++++++++++++++ tests/bhyvexml2argvtest.c | 1 + 5 files changed, 66 insertions(+) create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-passthru.args create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-passthru.ldargs create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-passthru.xml diff --git a/src/bhyve/bhyve_command.c b/src/bhyve/bhyve_command.c index bc287307c8..23bb2cdcf4 100644 --- a/src/bhyve/bhyve_command.c +++ b/src/bhyve/bhyve_command.c @@ -2,6 +2,7 @@ * bhyve_command.c: bhyve command generation * * Copyright (C) 2014 Roman Bogorodskiy + * Copyright (C) 2024-2025 Future Crew, LLC * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -152,6 +153,26 @@ bhyveBuildConsoleArgStr(const virDomainDef *def, virCommand *cmd) return 0; } +static int +bhyveBuildHostdevArgStr(const virDomainDef *def, virCommand *cmd) +{ + size_t i; + + for (i = 0; i < def->nhostdevs; i++) { + virDomainHostdevDef *hostdev = def->hostdevs[i]; + virDomainHostdevSubsys *subsys = &hostdev->source.subsys; + + if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS || + subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) + continue; + virCommandAddArg(cmd, "-s"); + virCommandAddArgFormat(cmd, "%d,passthru,%d/%d/%d", + hostdev->info->addr.pci.slot, subsys->u.pci.addr.bus, + subsys->u.pci.addr.slot, subsys->u.pci.addr.function); + } + return 0; +} + static int bhyveBuildAHCIControllerArgStr(const virDomainDef *def, virDomainControllerDef *controller, @@ -819,6 +840,9 @@ virBhyveProcessBuildBhyveCmd(struct _bhyveConn *driver, virDomainDef *def, virCommandAddArg(cmd, bhyvecmd->args[i]); } + if (bhyveBuildHostdevArgStr(def, cmd) < 0) + return NULL; + virCommandAddArg(cmd, def->name); return g_steal_pointer(&cmd); diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.args b/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.args new file mode 100644 index 0000000000..ec17756d36 --- /dev/null +++ b/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.args @@ -0,0 +1,9 @@ +bhyve \ +-c 1 \ +-m 214 \ +-H \ +-P \ +-s 0:0,hostbridge \ +-s 2:0,ahci,hd:/tmp/freebsd.img \ +-s 7,passthru,3/0/0 \ +bhyve diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.ldargs b/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.ldargs new file mode 100644 index 0000000000..5905f4b3e6 --- /dev/null +++ b/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.ldargs @@ -0,0 +1,4 @@ +bhyveload \ +-m 214 \ +-d /tmp/freebsd.img \ +bhyve diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.xml b/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.xml new file mode 100644 index 0000000000..9845587f1e --- /dev/null +++ b/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.xml @@ -0,0 +1,28 @@ +<domain type='bhyve'> + <name>bhyve</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type>hvm</type> + </os> + <clock offset='localtime'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>destroy</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <disk type='file'> + <driver name='file' type='raw'/> + <source file='/tmp/freebsd.img'/> + <target dev='hda' bus='sata'/> + <address type='drive' controller='0' bus='0' target='2' unit='0'/> + </disk> + <hostdev mode='subsystem' type='pci' managed='no'> + <source> + <address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/> + </source> + <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> + </hostdev> + </devices> +</domain> diff --git a/tests/bhyvexml2argvtest.c b/tests/bhyvexml2argvtest.c index cdaa32f65c..c1da8a1a17 100644 --- a/tests/bhyvexml2argvtest.c +++ b/tests/bhyvexml2argvtest.c @@ -217,6 +217,7 @@ mymain(void) DO_TEST("serial-grub"); DO_TEST("localtime"); DO_TEST("net-e1000"); + DO_TEST("passthru"); DO_TEST("uefi"); DO_TEST("vnc"); DO_TEST("vnc-vgaconf-on"); -- 2.46.1
Alexander Shursha wrote:
It is used to pass a PCI device from the host to a bhyve guest
Signed-off-by: Alexander Shursha <kekek2@ya.ru> --- src/bhyve/bhyve_command.c | 24 ++++++++++++++++ .../bhyvexml2argv-passthru.args | 9 ++++++ .../bhyvexml2argv-passthru.ldargs | 4 +++ .../bhyvexml2argv-passthru.xml | 28 +++++++++++++++++++ tests/bhyvexml2argvtest.c | 1 + 5 files changed, 66 insertions(+) create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-passthru.args create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-passthru.ldargs create mode 100644 tests/bhyvexml2argvdata/bhyvexml2argv-passthru.xml
diff --git a/src/bhyve/bhyve_command.c b/src/bhyve/bhyve_command.c index bc287307c8..23bb2cdcf4 100644 --- a/src/bhyve/bhyve_command.c +++ b/src/bhyve/bhyve_command.c @@ -2,6 +2,7 @@ * bhyve_command.c: bhyve command generation * * Copyright (C) 2014 Roman Bogorodskiy + * Copyright (C) 2024-2025 Future Crew, LLC * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -152,6 +153,26 @@ bhyveBuildConsoleArgStr(const virDomainDef *def, virCommand *cmd) return 0; }
+static int +bhyveBuildHostdevArgStr(const virDomainDef *def, virCommand *cmd) +{ + size_t i; + + for (i = 0; i < def->nhostdevs; i++) { + virDomainHostdevDef *hostdev = def->hostdevs[i]; + virDomainHostdevSubsys *subsys = &hostdev->source.subsys; + + if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS || + subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) + continue; + virCommandAddArg(cmd, "-s"); + virCommandAddArgFormat(cmd, "%d,passthru,%d/%d/%d", ^^
Two things about that: I think it's better to also specify function here (even if it's :0) for consistency with the other options; also, we don't seem to win anything by omitting it here. Another thing: I think it misses the PCI address auto assignment, so users don't have to explicitly set the address. I mean something like that: --- a/src/bhyve/bhyve_device.c +++ b/src/bhyve/bhyve_device.c @@ -184,6 +184,16 @@ bhyveAssignDevicePCISlots(virDomainDef *def, return -1; } + for (i = 0; i < def->nhostdevs; i++) { + if (!virDeviceInfoPCIAddressIsWanted(def->hostdevs[i]->info)) + continue; + if (virDomainPCIAddressReserveNextAddr(addrs, + def->hostdevs[i]->info, + VIR_PCI_CONNECT_TYPE_PCI_DEVICE, + -1) < 0) + return -1; + } + return 0; } Other than that it looks good to me.
+ hostdev->info->addr.pci.slot, subsys->u.pci.addr.bus, + subsys->u.pci.addr.slot, subsys->u.pci.addr.function); + } + return 0; +} + static int bhyveBuildAHCIControllerArgStr(const virDomainDef *def, virDomainControllerDef *controller, @@ -819,6 +840,9 @@ virBhyveProcessBuildBhyveCmd(struct _bhyveConn *driver, virDomainDef *def, virCommandAddArg(cmd, bhyvecmd->args[i]); }
+ if (bhyveBuildHostdevArgStr(def, cmd) < 0) + return NULL; + virCommandAddArg(cmd, def->name);
return g_steal_pointer(&cmd); diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.args b/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.args new file mode 100644 index 0000000000..ec17756d36 --- /dev/null +++ b/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.args @@ -0,0 +1,9 @@ +bhyve \ +-c 1 \ +-m 214 \ +-H \ +-P \ +-s 0:0,hostbridge \ +-s 2:0,ahci,hd:/tmp/freebsd.img \ +-s 7,passthru,3/0/0 \ +bhyve diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.ldargs b/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.ldargs new file mode 100644 index 0000000000..5905f4b3e6 --- /dev/null +++ b/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.ldargs @@ -0,0 +1,4 @@ +bhyveload \ +-m 214 \ +-d /tmp/freebsd.img \ +bhyve diff --git a/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.xml b/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.xml new file mode 100644 index 0000000000..9845587f1e --- /dev/null +++ b/tests/bhyvexml2argvdata/bhyvexml2argv-passthru.xml @@ -0,0 +1,28 @@ +<domain type='bhyve'> + <name>bhyve</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type>hvm</type> + </os> + <clock offset='localtime'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>destroy</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <disk type='file'> + <driver name='file' type='raw'/> + <source file='/tmp/freebsd.img'/> + <target dev='hda' bus='sata'/> + <address type='drive' controller='0' bus='0' target='2' unit='0'/> + </disk> + <hostdev mode='subsystem' type='pci' managed='no'> + <source> + <address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/> + </source> + <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> + </hostdev> + </devices> +</domain> diff --git a/tests/bhyvexml2argvtest.c b/tests/bhyvexml2argvtest.c index cdaa32f65c..c1da8a1a17 100644 --- a/tests/bhyvexml2argvtest.c +++ b/tests/bhyvexml2argvtest.c @@ -217,6 +217,7 @@ mymain(void) DO_TEST("serial-grub"); DO_TEST("localtime"); DO_TEST("net-e1000"); + DO_TEST("passthru"); DO_TEST("uefi"); DO_TEST("vnc"); DO_TEST("vnc-vgaconf-on"); -- 2.46.1
Signed-off-by: Alexander Shursha <kekek2@ya.ru> --- src/bhyve/bhyve_parse_command.c | 60 +++++++++++++++++++ .../bhyveargv2xml-passthru.args | 7 +++ .../bhyveargv2xml-passthru.xml | 22 +++++++ tests/bhyveargv2xmltest.c | 1 + 4 files changed, 90 insertions(+) create mode 100644 tests/bhyveargv2xmldata/bhyveargv2xml-passthru.args create mode 100644 tests/bhyveargv2xmldata/bhyveargv2xml-passthru.xml diff --git a/src/bhyve/bhyve_parse_command.c b/src/bhyve/bhyve_parse_command.c index 29d3a678bf..394fc151aa 100644 --- a/src/bhyve/bhyve_parse_command.c +++ b/src/bhyve/bhyve_parse_command.c @@ -5,6 +5,7 @@ * Copyright (C) 2006 Daniel P. Berrange * Copyright (c) 2011 NetApp, Inc. * Copyright (C) 2020 Fabian Freyer + * Copyright (C) 2024-2025 Future Crew, LLC * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -639,6 +640,63 @@ bhyveParsePCIFbuf(virDomainDef *def, return -1; } +static int +bhyveParsePassthru(virDomainDef *def G_GNUC_UNUSED, + unsigned pcibus, + unsigned pcislot, + unsigned pcifunction, + char *addr) +{ + /* -s slot,bus/slot/function */ + /* -s slot,pcibus:slot:function */ + virDomainHostdevDef *hostdev = NULL; + g_auto(GStrv) params = NULL; + GStrv param; + char *p = NULL; + + hostdev = virDomainHostdevDefNew(); + hostdev->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS; + hostdev->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI; + + hostdev->info->type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI; + hostdev->info->addr.pci.bus = pcibus; + hostdev->info->addr.pci.slot = pcislot; + hostdev->info->addr.pci.function = pcifunction; + + if (!addr) + goto error; + + if (!(params = g_strsplit(addr, ":", -1))) { + virReportError(VIR_ERR_OPERATION_FAILED, _("Failed to parse PCI address %1$s"), addr); + goto error; + } + if (g_str_equal(addr, *params)) { + g_free(params); + if (!(params = g_strsplit(addr, "/", -1))) { + virReportError(VIR_ERR_OPERATION_FAILED, _("Failed to parse PCI address %1$s"), addr); + goto error; + } + } + if (g_strv_length(params) != 3) { + virReportError(VIR_ERR_OPERATION_FAILED, _("Failed to parse PCI address %1$s"), addr); + goto error; + } + param = params; + hostdev->source.subsys.u.pci.addr.bus = g_ascii_strtoull(*param++, &p, 10); + hostdev->source.subsys.u.pci.addr.slot = g_ascii_strtoull(*param++, &p, 10); + hostdev->source.subsys.u.pci.addr.function = g_ascii_strtoull(*param, &p, 10); + + hostdev->source.subsys.u.pci.addr.domain = 0; + hostdev->managed = false; + + VIR_APPEND_ELEMENT(def->hostdevs, def->nhostdevs, hostdev); + return 0; + + error: + virDomainHostdevDefFree(hostdev); + return -1; +} + static int bhyveParseBhyvePCIArg(virDomainDef *def, virDomainXMLOption *xmlopt, @@ -703,6 +761,8 @@ bhyveParseBhyvePCIArg(virDomainDef *def, VIR_DOMAIN_NET_MODEL_E1000, conf); else if (STREQ(emulation, "fbuf")) bhyveParsePCIFbuf(def, xmlopt, caps, bus, slot, function, conf); + else if (STREQ(emulation, "passthru")) + bhyveParsePassthru(def, bus, slot, function, conf); VIR_FREE(emulation); VIR_FREE(slotdef); diff --git a/tests/bhyveargv2xmldata/bhyveargv2xml-passthru.args b/tests/bhyveargv2xmldata/bhyveargv2xml-passthru.args new file mode 100644 index 0000000000..4eb1ff14b5 --- /dev/null +++ b/tests/bhyveargv2xmldata/bhyveargv2xml-passthru.args @@ -0,0 +1,7 @@ +/usr/sbin/bhyve \ +-c 1 \ +-m 214 \ +-H \ +-P \ +-s 0:0,hostbridge \ +-s 7,passthru,3/0/0 bhyve diff --git a/tests/bhyveargv2xmldata/bhyveargv2xml-passthru.xml b/tests/bhyveargv2xmldata/bhyveargv2xml-passthru.xml new file mode 100644 index 0000000000..64118ff89c --- /dev/null +++ b/tests/bhyveargv2xmldata/bhyveargv2xml-passthru.xml @@ -0,0 +1,22 @@ +<domain type='bhyve'> + <name>bhyve</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type>hvm</type> + </os> + <clock offset='localtime'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>destroy</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <hostdev mode='subsystem' type='pci' managed='no'> + <source> + <address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/> + </source> + <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> + </hostdev> + </devices> +</domain> diff --git a/tests/bhyveargv2xmltest.c b/tests/bhyveargv2xmltest.c index 92189a2e58..f61235e04f 100644 --- a/tests/bhyveargv2xmltest.c +++ b/tests/bhyveargv2xmltest.c @@ -161,6 +161,7 @@ mymain(void) DO_TEST("virtio-blk"); DO_TEST("virtio-net"); DO_TEST("e1000"); + DO_TEST("passthru"); DO_TEST_WARN("virtio-net2"); DO_TEST_WARN("virtio-net3"); DO_TEST_WARN("virtio-net4"); -- 2.46.1
Alexander Shursha wrote:
Signed-off-by: Alexander Shursha <kekek2@ya.ru> --- src/bhyve/bhyve_parse_command.c | 60 +++++++++++++++++++ .../bhyveargv2xml-passthru.args | 7 +++ .../bhyveargv2xml-passthru.xml | 22 +++++++ tests/bhyveargv2xmltest.c | 1 + 4 files changed, 90 insertions(+) create mode 100644 tests/bhyveargv2xmldata/bhyveargv2xml-passthru.args create mode 100644 tests/bhyveargv2xmldata/bhyveargv2xml-passthru.xml
diff --git a/src/bhyve/bhyve_parse_command.c b/src/bhyve/bhyve_parse_command.c index 29d3a678bf..394fc151aa 100644 --- a/src/bhyve/bhyve_parse_command.c +++ b/src/bhyve/bhyve_parse_command.c @@ -5,6 +5,7 @@ * Copyright (C) 2006 Daniel P. Berrange * Copyright (c) 2011 NetApp, Inc. * Copyright (C) 2020 Fabian Freyer + * Copyright (C) 2024-2025 Future Crew, LLC * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -639,6 +640,63 @@ bhyveParsePCIFbuf(virDomainDef *def, return -1; }
+static int +bhyveParsePassthru(virDomainDef *def G_GNUC_UNUSED, + unsigned pcibus, + unsigned pcislot, + unsigned pcifunction, + char *addr) +{ + /* -s slot,bus/slot/function */ + /* -s slot,pcibus:slot:function */ + virDomainHostdevDef *hostdev = NULL; + g_auto(GStrv) params = NULL; + GStrv param; + char *p = NULL; + + hostdev = virDomainHostdevDefNew(); + hostdev->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS; + hostdev->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI; + + hostdev->info->type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI; + hostdev->info->addr.pci.bus = pcibus; + hostdev->info->addr.pci.slot = pcislot; + hostdev->info->addr.pci.function = pcifunction; + + if (!addr) + goto error; + + if (!(params = g_strsplit(addr, ":", -1))) { + virReportError(VIR_ERR_OPERATION_FAILED, _("Failed to parse PCI address %1$s"), addr); + goto error; + } + if (g_str_equal(addr, *params)) { + g_free(params); + if (!(params = g_strsplit(addr, "/", -1))) { + virReportError(VIR_ERR_OPERATION_FAILED, _("Failed to parse PCI address %1$s"), addr); + goto error; + } + } + if (g_strv_length(params) != 3) { + virReportError(VIR_ERR_OPERATION_FAILED, _("Failed to parse PCI address %1$s"), addr); + goto error; + } + param = params; + hostdev->source.subsys.u.pci.addr.bus = g_ascii_strtoull(*param++, &p, 10); + hostdev->source.subsys.u.pci.addr.slot = g_ascii_strtoull(*param++, &p, 10); + hostdev->source.subsys.u.pci.addr.function = g_ascii_strtoull(*param, &p, 10); + + hostdev->source.subsys.u.pci.addr.domain = 0; + hostdev->managed = false; + + VIR_APPEND_ELEMENT(def->hostdevs, def->nhostdevs, hostdev); + return 0; + + error: + virDomainHostdevDefFree(hostdev); + return -1; +} + static int bhyveParseBhyvePCIArg(virDomainDef *def, virDomainXMLOption *xmlopt, @@ -703,6 +761,8 @@ bhyveParseBhyvePCIArg(virDomainDef *def, VIR_DOMAIN_NET_MODEL_E1000, conf); else if (STREQ(emulation, "fbuf")) bhyveParsePCIFbuf(def, xmlopt, caps, bus, slot, function, conf); + else if (STREQ(emulation, "passthru")) + bhyveParsePassthru(def, bus, slot, function, conf);
VIR_FREE(emulation); VIR_FREE(slotdef); diff --git a/tests/bhyveargv2xmldata/bhyveargv2xml-passthru.args b/tests/bhyveargv2xmldata/bhyveargv2xml-passthru.args new file mode 100644 index 0000000000..4eb1ff14b5 --- /dev/null +++ b/tests/bhyveargv2xmldata/bhyveargv2xml-passthru.args @@ -0,0 +1,7 @@ +/usr/sbin/bhyve \ +-c 1 \ +-m 214 \ +-H \ +-P \ +-s 0:0,hostbridge \ +-s 7,passthru,3/0/0 bhyve diff --git a/tests/bhyveargv2xmldata/bhyveargv2xml-passthru.xml b/tests/bhyveargv2xmldata/bhyveargv2xml-passthru.xml new file mode 100644 index 0000000000..64118ff89c --- /dev/null +++ b/tests/bhyveargv2xmldata/bhyveargv2xml-passthru.xml @@ -0,0 +1,22 @@ +<domain type='bhyve'> + <name>bhyve</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type>hvm</type> + </os> + <clock offset='localtime'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>destroy</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <hostdev mode='subsystem' type='pci' managed='no'> + <source> + <address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/> + </source> + <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> + </hostdev> + </devices> +</domain> diff --git a/tests/bhyveargv2xmltest.c b/tests/bhyveargv2xmltest.c index 92189a2e58..f61235e04f 100644 --- a/tests/bhyveargv2xmltest.c +++ b/tests/bhyveargv2xmltest.c @@ -161,6 +161,7 @@ mymain(void) DO_TEST("virtio-blk"); DO_TEST("virtio-net"); DO_TEST("e1000"); + DO_TEST("passthru"); DO_TEST_WARN("virtio-net2"); DO_TEST_WARN("virtio-net3"); DO_TEST_WARN("virtio-net4"); -- 2.46.1
Reviewed-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
Alexander Shursha wrote:
The current virpci code uses the Linux-specific sysfs subsystem, which makes it impossible to use on other Unix-like systems. The libpciaccess library provides a cross-platform API for accessing the PCI bus. Employ it to make the code portable.
This makes libpciaccess a non-optional dependency of libvirt.
Signed-off-by: Alexander Shursha <kekek2@ya.ru> --- meson.build | 11 +- meson_options.txt | 4 +- src/meson.build | 1 + src/util/virpci.c | 465 +++++++++++---------------------------------- tests/virpcimock.c | 22 ++- 5 files changed, 139 insertions(+), 364 deletions(-)
I performed some limited testing of this feature, specifically for passing through a network device (as I currently don't have other applicable devices). The bhyve side of things looks good to me (except for the auto PCI address assignment which looks easy to fix). I don't think I can provide any meaningful review on the virpci side of things though, in fact, I'm not even sure how to test it. I've tried nodedev-attach and nodedev-detach (instead of doing that with external tools), but apparently it needs driver-level support. Anyway, my question is the following: Should we split this series into two: the virpci part and the bhyve part? If I'm not mistaken, they are not tied to each other, and splitting them would make review easier as the bhyve part is almost ready to get it. Thanks, Roman
Roman Bogorodskiy <bogorodskiy@gmail.com> writes:
Anyway, my question is the following:
Should we split this series into two: the virpci part and the bhyve part? If I'm not mistaken, they are not tied to each other, and splitting them would make review easier as the bhyve part is almost ready to get it.
If you don't redo virpci, then the bhyve part won't even work. If you divide the series into two parts, you first need to take virpci, and then bhyve. -- Alexander Shursha
participants (2)
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Alexander Shursha -
Roman Bogorodskiy