| Message ID | 1447754231-7772-8-git-send-email-shannon.zhao@linaro.org |
|---|---|
| State | New |
| Headers | show |
On Tue, Nov 17, 2015 at 05:57:05PM +0800, shannon.zhao@linaro.org wrote: > From: Shannon Zhao <shannon.zhao@linaro.org> > > Add a "uefi" node under /hypervisor node in FDT, then Linux kernel could > scan this to get the UEFI information. > > Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> > --- > Documentation/devicetree/bindings/arm/xen.txt | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+) > > diff --git a/Documentation/devicetree/bindings/arm/xen.txt b/Documentation/devicetree/bindings/arm/xen.txt > index 0f7b9c2..c375d67 100644 > --- a/Documentation/devicetree/bindings/arm/xen.txt > +++ b/Documentation/devicetree/bindings/arm/xen.txt > @@ -15,6 +15,24 @@ the following properties: > - interrupts: the interrupt used by Xen to inject event notifications. > A GIC node is also required. > > +To support UEFI on Xen ARM virtual platforms, Xen pupulates the FDT "uefi" node > +under /hypervisor with following parameters: > + > +________________________________________________________________________________ > +Name | Size | Description > +================================================================================ > +xen,uefi-system-table | 64-bit | Physical address of the UEFI System Table. > +-------------------------------------------------------------------------------- > +xen,uefi-mmap-start | 64-bit | Physical address of the UEFI memory map. > +-------------------------------------------------------------------------------- > +xen,uefi-mmap-size | 32-bit | Size in bytes of the UEFI memory map > + | | pointed to in previous entry. > +-------------------------------------------------------------------------------- > +xen,uefi-mmap-desc-size | 32-bit | Size in bytes of each entry in the UEFI > + | | memory map. > +-------------------------------------------------------------------------------- > +xen,uefi-mmap-desc-ver | 32-bit | Version of the mmap descriptor format. > +-------------------------------------------------------------------------------- Why aren't you using what is already populated by UEFI as defined in Documentation/arm/uefi.txt? Seems to be about the same thing. Rob -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/arm/xen.txt b/Documentation/devicetree/bindings/arm/xen.txt index 0f7b9c2..c375d67 100644 --- a/Documentation/devicetree/bindings/arm/xen.txt +++ b/Documentation/devicetree/bindings/arm/xen.txt @@ -15,6 +15,24 @@ the following properties: - interrupts: the interrupt used by Xen to inject event notifications. A GIC node is also required. +To support UEFI on Xen ARM virtual platforms, Xen pupulates the FDT "uefi" node +under /hypervisor with following parameters: + +________________________________________________________________________________ +Name | Size | Description +================================================================================ +xen,uefi-system-table | 64-bit | Physical address of the UEFI System Table. +-------------------------------------------------------------------------------- +xen,uefi-mmap-start | 64-bit | Physical address of the UEFI memory map. +-------------------------------------------------------------------------------- +xen,uefi-mmap-size | 32-bit | Size in bytes of the UEFI memory map + | | pointed to in previous entry. +-------------------------------------------------------------------------------- +xen,uefi-mmap-desc-size | 32-bit | Size in bytes of each entry in the UEFI + | | memory map. +-------------------------------------------------------------------------------- +xen,uefi-mmap-desc-ver | 32-bit | Version of the mmap descriptor format. +-------------------------------------------------------------------------------- Example (assuming #address-cells = <2> and #size-cells = <2>): @@ -22,4 +40,11 @@ hypervisor { compatible = "xen,xen-4.3", "xen,xen"; reg = <0 0xb0000000 0 0x20000>; interrupts = <1 15 0xf08>; + uefi { + xen,uefi-system-table = <0xXXXXXXXX>; + xen,uefi-mmap-start = <0xXXXXXXXX>; + xen,uefi-mmap-size = <0xXXXXXXXX>; + xen,uefi-mmap-desc-size = <0xXXXXXXXX>; + xen,uefi-mmap-desc-ver = <0xXXXXXXXX>; + }; };