diff options
| author | Philippe Mathieu-Daudé <philmd@redhat.com> | 2020-09-22 10:38:16 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2020-10-05 09:35:52 +0100 |
| commit | b02c01a513a17e03e2245feff19b3dcc8c408859 (patch) | |
| tree | a4bb66de8c0091fc06398ee4dd4e6361759f3733 /util/vfio-helpers.c | |
| parent | 469e72ab7dbbd7ff4ee601e5ea7c29545d46593b (diff) | |
util/vfio-helpers: Pass page protections to qemu_vfio_pci_map_bar()
Pages are currently mapped READ/WRITE. To be able to use different
protections, add a new argument to qemu_vfio_pci_map_bar().
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20200922083821.578519-2-philmd@redhat.com>
Diffstat (limited to 'util/vfio-helpers.c')
| -rw-r--r-- | util/vfio-helpers.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/util/vfio-helpers.c b/util/vfio-helpers.c index 583bdfb36f..9ac307e3d4 100644 --- a/util/vfio-helpers.c +++ b/util/vfio-helpers.c @@ -146,13 +146,13 @@ static int qemu_vfio_pci_init_bar(QEMUVFIOState *s, int index, Error **errp) * Map a PCI bar area. */ void *qemu_vfio_pci_map_bar(QEMUVFIOState *s, int index, - uint64_t offset, uint64_t size, + uint64_t offset, uint64_t size, int prot, Error **errp) { void *p; assert_bar_index_valid(s, index); p = mmap(NULL, MIN(size, s->bar_region_info[index].size - offset), - PROT_READ | PROT_WRITE, MAP_SHARED, + prot, MAP_SHARED, s->device, s->bar_region_info[index].offset + offset); if (p == MAP_FAILED) { error_setg_errno(errp, errno, "Failed to map BAR region"); |