[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v3 00/04] HVM firmware passthrough
I haven't seen any activity on this feature. Is it still planned to be included in Xen 4.3? - Charles On Wed, 2012-05-23 at 14:37 +0000, Ross Philipson wrote: > This patch series introduces support of loading external blocks of firmware > into a guest. These blocks can currently contain SMBIOS and/or ACPI firmware > information that is used by HVMLOADER to modify a guests virtual firmware at > startup. These modules are only used by HVMLOADER. > > The domain building code in libxenguest is passed these firmware blocks > in the xc_hvm_build_args structure and loads them into the new guest, > returning the load address. The loading is done in what will become the > guests > low RAM area just behind to load location for HVMLOADER. After their use by > HVMLOADER they are effectively discarded. It is the caller's job to load the > base address and length values in xenstore using the paths defined in the > new > hvm_defs.h header so HVMLOADER can located the blocks. > > Currently two types of firmware information are recognized and processed > in the HVMLOADER though this could be extended. > > 1. SMBIOS: The SMBIOS table building code will attempt to retrieve (for > predefined set of structure types) any passed in structures. If a match is > found the passed in table will be used overriding the default values. In > addition, the SMBIOS code will also enumerate and load any vendor defined > structures (in the range of types 128 - 255) that as are passed in. See the > hvm_defs.h header for information on the format of this block. > 2. ACPI: Static and secondary descriptor tables can be added to the set of > ACPI table built by HVMLOADER. The ACPI builder code will enumerate passed > in > tables and add them at the end of the secondary table list. See the > hvm_defs.h > header for information on the format of this block. > > There are 4 patches in the series: > 01 - Add HVM definitions header for firmware passthrough support. > 02 - Xen control tools support for loading the firmware blocks. > 03 - Passthrough support for SMBIOS. > 04 - Passthrough support for ACPI. > > Note this is version 3 of this patch set. Some of the differences: > - Generic module support removed, overall functionality was simplified. > - Use of xenstore to supply firmware passthrough information to HVMLOADER. > - Fixed issues pointed out in the SMBIOS processing code. > - Created defines for the SMBIOS handles in use and switched to using > the xenstore values in the new hvm_defs.h file. > > Signed-off-by: Ross Philipson <ross.philipson@xxxxxxxxxx> > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |