diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2016-02-29 11:24:36 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2016-02-29 11:24:36 +0000 |
| commit | 3ff430aa91f33388cce88d81edcad8b2ac5a7a9f (patch) | |
| tree | c1492be36a503161385a851ded731f8b8648ae32 | |
| parent | 35227e6a09a274b1496bfe16cbe2008e85fbeb5a (diff) | |
| parent | e6915b5f3a874a467a9a65f7ec1d6ef8d251a51a (diff) | |
Merge remote-tracking branch 'remotes/kraxel/tags/pull-fw-cfg-20160226-1' into staging
fw_cfg: unbreak migration compatibility for 2.4 and earlier machines
# gpg: Signature made Fri 26 Feb 2016 09:45:50 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-fw-cfg-20160226-1:
fw_cfg: unbreak migration compatibility for 2.4 and earlier machines
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | hw/nvram/fw_cfg.c | 20 | ||||
| -rw-r--r-- | include/hw/compat.h | 8 |
2 files changed, 20 insertions, 8 deletions
diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c index 79c5742b33..f3acb47bd4 100644 --- a/hw/nvram/fw_cfg.c +++ b/hw/nvram/fw_cfg.c @@ -778,17 +778,19 @@ FWCfgState *fw_cfg_init_io_dma(uint32_t iobase, uint32_t dma_iobase, DeviceState *dev; FWCfgState *s; uint32_t version = FW_CFG_VERSION; - bool dma_enabled = dma_iobase && dma_as; + bool dma_requested = dma_iobase && dma_as; dev = qdev_create(NULL, TYPE_FW_CFG_IO); qdev_prop_set_uint32(dev, "iobase", iobase); qdev_prop_set_uint32(dev, "dma_iobase", dma_iobase); - qdev_prop_set_bit(dev, "dma_enabled", dma_enabled); + if (!dma_requested) { + qdev_prop_set_bit(dev, "dma_enabled", false); + } fw_cfg_init1(dev); s = FW_CFG(dev); - if (dma_enabled) { + if (s->dma_enabled) { /* 64 bits for the address field */ s->dma_as = dma_as; s->dma_addr = 0; @@ -814,11 +816,13 @@ FWCfgState *fw_cfg_init_mem_wide(hwaddr ctl_addr, SysBusDevice *sbd; FWCfgState *s; uint32_t version = FW_CFG_VERSION; - bool dma_enabled = dma_addr && dma_as; + bool dma_requested = dma_addr && dma_as; dev = qdev_create(NULL, TYPE_FW_CFG_MEM); qdev_prop_set_uint32(dev, "data_width", data_width); - qdev_prop_set_bit(dev, "dma_enabled", dma_enabled); + if (!dma_requested) { + qdev_prop_set_bit(dev, "dma_enabled", false); + } fw_cfg_init1(dev); @@ -828,7 +832,7 @@ FWCfgState *fw_cfg_init_mem_wide(hwaddr ctl_addr, s = FW_CFG(dev); - if (dma_enabled) { + if (s->dma_enabled) { s->dma_as = dma_as; s->dma_addr = 0; sysbus_mmio_map(sbd, 2, dma_addr); @@ -873,7 +877,7 @@ static Property fw_cfg_io_properties[] = { DEFINE_PROP_UINT32("iobase", FWCfgIoState, iobase, -1), DEFINE_PROP_UINT32("dma_iobase", FWCfgIoState, dma_iobase, -1), DEFINE_PROP_BOOL("dma_enabled", FWCfgIoState, parent_obj.dma_enabled, - false), + true), DEFINE_PROP_END_OF_LIST(), }; @@ -913,7 +917,7 @@ static const TypeInfo fw_cfg_io_info = { static Property fw_cfg_mem_properties[] = { DEFINE_PROP_UINT32("data_width", FWCfgMemState, data_width, -1), DEFINE_PROP_BOOL("dma_enabled", FWCfgMemState, parent_obj.dma_enabled, - false), + true), DEFINE_PROP_END_OF_LIST(), }; diff --git a/include/hw/compat.h b/include/hw/compat.h index 2ebe739fcb..a5dbbf8984 100644 --- a/include/hw/compat.h +++ b/include/hw/compat.h @@ -42,6 +42,14 @@ .driver = "virtio-pci",\ .property = "migrate-extra",\ .value = "off",\ + },{\ + .driver = "fw_cfg_mem",\ + .property = "dma_enabled",\ + .value = "off",\ + },{\ + .driver = "fw_cfg_io",\ + .property = "dma_enabled",\ + .value = "off",\ }, #define HW_COMPAT_2_3 \ |