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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 /include | |
| 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 'include')
| -rw-r--r-- | include/libvfio-user.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/libvfio-user.h b/include/libvfio-user.h index 75de04e..4b08c22 100644 --- a/include/libvfio-user.h +++ b/include/libvfio-user.h @@ -221,6 +221,7 @@ typedef ssize_t (vfu_region_access_cb_t)(vfu_ctx_t *vfu_ctx, char *buf, #define VFU_REGION_FLAG_WRITE (1 << 1) #define VFU_REGION_FLAG_RW (VFU_REGION_FLAG_READ | VFU_REGION_FLAG_WRITE) #define VFU_REGION_FLAG_MEM (1 << 2) // if unset, bar is IO +#define VFU_REGION_FLAG_ALWAYS_CB (1 << 3) /** * Set up a device region. @@ -262,6 +263,8 @@ typedef ssize_t (vfu_region_access_cb_t)(vfu_ctx_t *vfu_ctx, char *buf, * - if no callback is provided, reads to other areas are a simple memcpy(), * and writes are an error * - otherwise, the callback is expected to handle the access + * - if VFU_REGION_FLAG_ALWAYS_CB flag is set, all accesses to the config + * space are forwarded to the callback * * Regions VFU_PCI_DEV_MIGR_REGION_IDX and VFU_GENERIC_DEV_MIGR_REG_IDX, * corresponding to the migration region, enable live migration support for |