diff options
| -rw-r--r-- | lib/libmuser_pci.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/libmuser_pci.c b/lib/libmuser_pci.c index 98d7266..85ac96e 100644 --- a/lib/libmuser_pci.c +++ b/lib/libmuser_pci.c @@ -163,6 +163,19 @@ handle_command_write(lm_ctx_t *ctx, lm_pci_config_space_t *pci, } } + if ((v & PCI_COMMAND_INVALIDATE) == PCI_COMMAND_INVALIDATE) { + if (!pci->hdr.cmd.mwie) { + pci->hdr.cmd.mwie = 1U; + lm_log(ctx, LM_INF, "memory write and invalidate enabled\n"); + } + v &= ~PCI_COMMAND_INVALIDATE; + } else { + if (pci->hdr.cmd.mwie) { + pci->hdr.cmd.mwie = 0; + lm_log(ctx, LM_INF, "memory write and invalidate disabled"); + } + } + if (v != 0) { lm_log(ctx, LM_ERR, "unconsumed command flags %x\n", v); return -EINVAL; |