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Hello all, Here is a new iteration of the patch series that implements a transport for guest and host communications. The code has been updated to reuse the virtio-console device instead of creating a new virtio-serial device. I've tested for compatibility (old qemu & new kernel, new qemu & old kernel, new qemu & new kernel) and it all works fine. There are a few items on my

Hello all, Here is a new iteration of the patch series that implements a transport for guest and host communications. The code has been updated to reuse the virtio-console device instead of creating a new virtio-serial device. I've tested for compatibility (old qemu & new kernel, new qemu & old kernel, new qemu & new kernel) and it all works fine. There are a few items on my

...DATA_VALID > +#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */ > +#endif > + > +static struct { > + struct mic_device_desc dd; > + struct mic_vqconfig vqconfig[2]; > + __u32 host_features, guest_acknowledgements; > + struct virtio_console_config cons_config; > +} virtcons_dev_page = { > + .dd = { > + .type = VIRTIO_ID_CONSOLE, > + .num_vq = ARRAY_SIZE(virtcons_dev_page.vqconfig), > + .feature_len = sizeof(virtcons_dev_page.host_features), > + .config_len = sizeof(virtcons_dev_page.cons_config), > + }, > + .vqconfig[0] = { > + .num = hto...

...DATA_VALID > +#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */ > +#endif > + > +static struct { > + struct mic_device_desc dd; > + struct mic_vqconfig vqconfig[2]; > + __u32 host_features, guest_acknowledgements; > + struct virtio_console_config cons_config; > +} virtcons_dev_page = { > + .dd = { > + .type = VIRTIO_ID_CONSOLE, > + .num_vq = ARRAY_SIZE(virtcons_dev_page.vqconfig), > + .feature_len = sizeof(virtcons_dev_page.host_features), > + .config_len = sizeof(virtcons_dev_page.cons_config), > + }, > + .vqconfig[0] = { > + .num = hto...

..._PAGE_END 0x1000 + +#ifndef VIRTIO_NET_HDR_F_DATA_VALID +#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */ +#endif + +static struct { + struct mic_device_desc dd; + struct mic_vqconfig vqconfig[2]; + __u32 host_features, guest_acknowledgements; + struct virtio_console_config cons_config; +} virtcons_dev_page = { + .dd = { + .type = VIRTIO_ID_CONSOLE, + .num_vq = ARRAY_SIZE(virtcons_dev_page.vqconfig), + .feature_len = sizeof(virtcons_dev_page.host_features), + .config_len = sizeof(virtcons_dev_page.cons_config), + }, + .vqconfig[0] = { + .num = htole16(MIC_VRING_ENTRIES), + }, + .vqconfi...

ChangeLog: ========= v1 => v2: a) License wording cleanup, sysfs ABI documentation, patch 1 refactoring into 3 smaller patches and function renames, as per feedback from Greg Kroah-Hartman. b) Use VRINGH infrastructure for accessing virtio rings from the host in patch 5, as per feedback from Michael S. Tsirkin. v1: Initial post @ https://lkml.org/lkml/2013/7/24/810 Description:

ChangeLog: ========= v1 => v2: a) License wording cleanup, sysfs ABI documentation, patch 1 refactoring into 3 smaller patches and function renames, as per feedback from Greg Kroah-Hartman. b) Use VRINGH infrastructure for accessing virtio rings from the host in patch 5, as per feedback from Michael S. Tsirkin. v1: Initial post @ https://lkml.org/lkml/2013/7/24/810 Description:

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

An Intel MIC X100 device is a PCIe form factor add-in coprocessor card based on the Intel Many Integrated Core (MIC) architecture that runs a Linux OS. It is a PCIe endpoint in a platform and therefore implements the three required standard address spaces i.e. configuration, memory and I/O. The host OS loads a device driver as is typical for PCIe devices. The card itself runs a bootstrap after

An Intel MIC X100 device is a PCIe form factor add-in coprocessor card based on the Intel Many Integrated Core (MIC) architecture that runs a Linux OS. It is a PCIe endpoint in a platform and therefore implements the three required standard address spaces i.e. configuration, memory and I/O. The host OS loads a device driver as is typical for PCIe devices. The card itself runs a bootstrap after