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| author | Peter Maydell <peter.maydell@linaro.org> | 2015-07-13 13:35:51 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-07-13 13:35:51 +0100 |
| commit | f3a1b5068cea303a55e2a21a97e66d057eaae638 (patch) | |
| tree | 63fa73c263a51b643c5f6e29776c7fc7c6734645 /hw/virtio/virtio-pci.c | |
| parent | 6e3c0c6edbdddb8dd676bec1ac51b5faffc19a77 (diff) | |
| parent | 4421c6a38a37d558b8e6f82d2d54aee30350f57f (diff) | |
| download | focaccia-qemu-f3a1b5068cea303a55e2a21a97e66d057eaae638.tar.gz focaccia-qemu-f3a1b5068cea303a55e2a21a97e66d057eaae638.zip | |
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc,virtio: fixes for 2.4 pc and virtio changes, bugfixes only. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Mon Jul 13 13:03:38 2015 BST using RSA key ID D28D5469 # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" * remotes/mst/tags/for_upstream: pc: fix reuse of pc-i440fx-2.4 in pc-i440fx-2.3 Revert "virtio-net: enable virtio 1.0" virtio-pci: don't crash on illegal length qdev: fix 64 bit properties Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/virtio/virtio-pci.c')
| -rw-r--r-- | hw/virtio/virtio-pci.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index ccca2b6f3b..283401aa0d 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -546,7 +546,8 @@ static void virtio_write_config(PCIDevice *pci_dev, uint32_t address, off = le32_to_cpu(cfg->cap.offset); len = le32_to_cpu(cfg->cap.length); - if (len <= sizeof cfg->pci_cfg_data) { + if (len == 1 || len == 2 || len == 4) { + assert(len <= sizeof cfg->pci_cfg_data); virtio_address_space_write(&proxy->modern_as, off, cfg->pci_cfg_data, len); } @@ -570,7 +571,8 @@ static uint32_t virtio_read_config(PCIDevice *pci_dev, off = le32_to_cpu(cfg->cap.offset); len = le32_to_cpu(cfg->cap.length); - if (len <= sizeof cfg->pci_cfg_data) { + if (len == 1 || len == 2 || len == 4) { + assert(len <= sizeof cfg->pci_cfg_data); virtio_address_space_read(&proxy->modern_as, off, cfg->pci_cfg_data, len); } |