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| author | Thanos Makatos <thanos.makatos@nutanix.com> | 2020-07-03 07:50:23 -0700 |
|---|---|---|
| committer | Thanos Makatos <thanos.makatos@nutanix.com> | 2020-07-03 07:50:23 -0700 |
| commit | 620161c882b0accf17d43f40bfcf163fc3e3a44c (patch) | |
| tree | d2f48b6e44403ed8e6d5a11fc22bd4c94465b20e | |
| parent | 9d8a0e61b8294c1d590e56cd78c0bdd3cc5c2229 (diff) | |
| download | libvfio-user-620161c882b0accf17d43f40bfcf163fc3e3a44c.zip libvfio-user-620161c882b0accf17d43f40bfcf163fc3e3a44c.tar.gz libvfio-user-620161c882b0accf17d43f40bfcf163fc3e3a44c.tar.bz2 | |
handle memory write and invalidate
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
| -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; |