Re: [edk2-devel] [PATCH v2 5/7] OvmfPkg/XenPlatformPei: Map extra physical address

2021-04-07 Thread Laszlo Ersek
On 03/25/21 16:47, Anthony PERARD via groups.io wrote: > Some information available in a Xen guest can be mapped anywhere in > the physical address space and they don't need to be backed by RAM. > For example, the shared info page. > > While it's easier to put those pages anywhere, it is better

[edk2-devel] [PATCH v2 5/7] OvmfPkg/XenPlatformPei: Map extra physical address

2021-03-25 Thread Anthony PERARD via groups.io
Some information available in a Xen guest can be mapped anywhere in the physical address space and they don't need to be backed by RAM. For example, the shared info page. While it's easier to put those pages anywhere, it is better to avoid mapping it where the RAM is. It might split a nice 1G