Re: [Xen-devel] [PATCH V3] xen/arm: domain_build: allocate lowmem for dom0 as much as possible

2016-09-22 Thread Peng Fan
On Thu, Sep 22, 2016 at 04:23:05PM +0100, Julien Grall wrote: >Hello Peng, > >On 22/09/16 10:16, Peng Fan wrote: >>On AArch64 SoCs, some IPs may only have the capability to access >>32 bits address space. The physical memory assigned for Dom0 maybe >>not in 4GB address space, then the IPs will not

Re: [Xen-devel] [PATCH V3] xen/arm: domain_build: allocate lowmem for dom0 as much as possible

2016-09-22 Thread Julien Grall
Hello Peng, On 22/09/16 10:16, Peng Fan wrote: On AArch64 SoCs, some IPs may only have the capability to access 32 bits address space. The physical memory assigned for Dom0 maybe not in 4GB address space, then the IPs will not work properly. So need to allocate memory under 4GB for Dom0. There

[Xen-devel] [PATCH V3] xen/arm: domain_build: allocate lowmem for dom0 as much as possible

2016-09-22 Thread Peng Fan
On AArch64 SoCs, some IPs may only have the capability to access 32 bits address space. The physical memory assigned for Dom0 maybe not in 4GB address space, then the IPs will not work properly. So need to allocate memory under 4GB for Dom0. There is no restriction that how much lowmem needs to