Always emit an error message on passthru configuration errors.
Previously, many errors (such as the PCI device not being attached to the ppt(4) driver) resulted in bhyve silently exiting without starting the virtual machine. Now any errors encountered when configuring a virtual slot for a PCI passthru device should be noted on stderr. Reviewed by: neel Differential Revision: https://reviews.freebsd.org/D5990
This commit is contained in:
parent
6f39c760f8
commit
cff92ffd4d
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=298295
@ -43,7 +43,7 @@ __FBSDID("$FreeBSD$");
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <err.h>
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#include <fcntl.h>
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#include <unistd.h>
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@ -483,9 +483,9 @@ init_msix_table(struct vmctx *ctx, struct passthru_softc *sc, uint64_t base)
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PROT_WRITE, MAP_SHARED, memfd, start +
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pi->pi_msix.pba_page_offset);
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if (pi->pi_msix.pba_page == MAP_FAILED) {
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printf(
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"Failed to map PBA page for MSI-X on %d/%d/%d: %s\n",
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b, s, f, strerror(errno));
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warn(
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"Failed to map PBA page for MSI-X on %d/%d/%d",
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b, s, f);
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return (-1);
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}
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}
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@ -559,7 +559,7 @@ cfginitbar(struct vmctx *ctx, struct passthru_softc *sc)
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if (bartype != PCIBAR_IO) {
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if (((base | size) & PAGE_MASK) != 0) {
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printf("passthru device %d/%d/%d BAR %d: "
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warnx("passthru device %d/%d/%d BAR %d: "
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"base %#lx or size %#lx not page aligned\n",
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sc->psc_sel.pc_bus, sc->psc_sel.pc_dev,
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sc->psc_sel.pc_func, i, base, size);
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@ -617,11 +617,17 @@ cfginit(struct vmctx *ctx, struct pci_devinst *pi, int bus, int slot, int func)
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sc->psc_sel.pc_dev = slot;
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sc->psc_sel.pc_func = func;
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if (cfginitmsi(sc) != 0)
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if (cfginitmsi(sc) != 0) {
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warnx("failed to initialize MSI for PCI %d/%d/%d",
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bus, slot, func);
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goto done;
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}
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if (cfginitbar(ctx, sc) != 0)
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if (cfginitbar(ctx, sc) != 0) {
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warnx("failed to initialize BARs for PCI %d/%d/%d",
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bus, slot, func);
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goto done;
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}
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error = 0; /* success */
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done:
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@ -639,34 +645,45 @@ passthru_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
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memflags = vm_get_memflags(ctx);
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if (!(memflags & VM_MEM_F_WIRED)) {
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fprintf(stderr, "passthru requires guest memory to be wired\n");
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warnx("passthru requires guest memory to be wired");
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goto done;
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}
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if (pcifd < 0) {
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pcifd = open(_PATH_DEVPCI, O_RDWR, 0);
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if (pcifd < 0)
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if (pcifd < 0) {
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warn("failed to open %s", _PATH_DEVPCI);
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goto done;
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}
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}
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if (iofd < 0) {
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iofd = open(_PATH_DEVIO, O_RDWR, 0);
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if (iofd < 0)
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if (iofd < 0) {
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warn("failed to open %s", _PATH_DEVIO);
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goto done;
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}
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}
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if (memfd < 0) {
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memfd = open(_PATH_MEM, O_RDWR, 0);
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if (memfd < 0)
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if (memfd < 0) {
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warn("failed to open %s", _PATH_MEM);
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goto done;
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}
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}
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if (opts == NULL ||
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sscanf(opts, "%d/%d/%d", &bus, &slot, &func) != 3)
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sscanf(opts, "%d/%d/%d", &bus, &slot, &func) != 3) {
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warnx("invalid passthru options");
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goto done;
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}
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if (vm_assign_pptdev(ctx, bus, slot, func) != 0)
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if (vm_assign_pptdev(ctx, bus, slot, func) != 0) {
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warnx("PCI device at %d/%d/%d is not using the ppt(4) driver",
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bus, slot, func);
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goto done;
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}
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sc = calloc(1, sizeof(struct passthru_softc));
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@ -777,10 +794,8 @@ passthru_cfgwrite(struct vmctx *ctx, int vcpu, struct pci_devinst *pi,
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sc->psc_sel.pc_dev, sc->psc_sel.pc_func,
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pi->pi_msi.addr, pi->pi_msi.msg_data,
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pi->pi_msi.maxmsgnum);
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if (error != 0) {
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printf("vm_setup_pptdev_msi error %d\r\n", errno);
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exit(1);
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}
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if (error != 0)
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err(1, "vm_setup_pptdev_msi");
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return (0);
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}
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@ -796,11 +811,8 @@ passthru_cfgwrite(struct vmctx *ctx, int vcpu, struct pci_devinst *pi,
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pi->pi_msix.table[i].msg_data,
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pi->pi_msix.table[i].vector_control);
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if (error) {
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printf("vm_setup_pptdev_msix error "
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"%d\r\n", errno);
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exit(1);
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}
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if (error)
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err(1, "vm_setup_pptdev_msix");
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}
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}
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return (0);
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