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| author | Jag Raman <jraman567@gmail.com> | 2021-07-13 12:18:33 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-07-13 17:18:33 +0100 |
| commit | e0c15dfd087f8093ee6aab697e9ac2a252ab42bb (patch) | |
| tree | f853f527ae541c03b16055cc1efc5c53e3382ec2 /lib | |
| parent | f44091db918d54211cb43683b091c61a6177d450 (diff) | |
| download | libvfio-user-e0c15dfd087f8093ee6aab697e9ac2a252ab42bb.zip libvfio-user-e0c15dfd087f8093ee6aab697e9ac2a252ab42bb.tar.gz libvfio-user-e0c15dfd087f8093ee6aab697e9ac2a252ab42bb.tar.bz2 | |
add VFU_REGION_FLAG_ALWAYS_CB to receive callback always (#583)
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libvfio-user.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/lib/libvfio-user.c b/lib/libvfio-user.c index a90d9c2..1ee4026 100644 --- a/lib/libvfio-user.c +++ b/lib/libvfio-user.c @@ -208,7 +208,8 @@ region_access(vfu_ctx_t *vfu_ctx, size_t region_index, char *buf, dump_buffer("buffer write", buf, count); } - if (region_index == VFU_PCI_DEV_CFG_REGION_IDX) { + if ((region_index == VFU_PCI_DEV_CFG_REGION_IDX) && + !(vfu_ctx->reg_info[region_index].flags & VFU_REGION_FLAG_ALWAYS_CB)) { ret = pci_config_space_access(vfu_ctx, buf, count, offset, is_write); if (ret == -1) { return ret; @@ -1445,7 +1446,13 @@ vfu_setup_region(vfu_ctx_t *vfu_ctx, int region_idx, size_t size, * PCI config space is never mappable or of type mem. */ if (region_idx == VFU_PCI_DEV_CFG_REGION_IDX && - flags != VFU_REGION_FLAG_RW) { + (((flags & VFU_REGION_FLAG_RW) != VFU_REGION_FLAG_RW) || + (flags & VFU_REGION_FLAG_MEM))) { + return ERROR_INT(EINVAL); + } + + if ((flags & VFU_REGION_FLAG_ALWAYS_CB) && (cb == NULL)) { + vfu_log(vfu_ctx, LOG_ERR, "VFU_REGION_FLAG_ALWAYS_CB needs callback"); return ERROR_INT(EINVAL); } |