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DM: Add option of no check against ptdev reset

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With '--ptdev_no_reset', DM doen not abort but warn when assign PCIe
dev without reset capability.

Signed-off-by: Edwin Zhai <edwin.zhai@intel.com>
Acked-by: Kevin Tian <kevin.tian@intel.com>
This commit is contained in:
Edwin Zhai
2018-05-25 20:38:31 +08:00
committed by lijinxia
parent b19d936356
commit 4b4e1e1c59
3 changed files with 21 additions and 2 deletions
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13
devicemodel/hw/pci/passthrough.c
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@@ -91,6 +91,11 @@ static pthread_mutex_t ref_cnt_mtx = PTHREAD_MUTEX_INITIALIZER;
/* Prefer MSI over INTx for ptdev */
static bool prefer_msi = true;
/* Not check reset capability before assign ptdev.
* Set false by default, that is, always check.
*/
static bool no_reset = false;
struct passthru_dev {
struct pci_vdev *dev;
struct pcibar bar[PCI_BARMAX + 1];
@@ -116,6 +121,11 @@ ptdev_prefer_msi(bool enable)
prefer_msi = enable;
}
void ptdev_no_reset(bool enable)
{
no_reset = enable;
}
static int
msi_caplen(int msgctrl)
{
@@ -846,7 +856,8 @@ cfginit(struct vmctx *ctx, struct passthru_dev *ptdev, int bus,
warnx("No reset capability for PCIe %x/%x/%x, "
"remove it from ptdev list!!\n",
bus, slot, func);
return -1;
if (!no_reset)
return -1;
}
}