Re: [Xen-devel] [RFC] xen/arm: domain_build: introduce dom0_lowmem bootargs

2016-09-14 Thread Julien Grall
Hello Peng, On 14/09/2016 02:31, Peng Fan wrote: On Tue, Sep 13, 2016 at 02:24:31PM +0100, Julien Grall wrote: On 13/09/16 14:12, Peng Fan wrote: Hi Julien, On Tue, Sep 13, 2016 at 01:59:01PM +0100, Julien Grall wrote: Hello Peng, On 13/09/16 13:55, Peng Fan wrote: On AArch64 SoCs, some

Re: [Xen-devel] [RFC] xen/arm: domain_build: introduce dom0_lowmem bootargs

2016-09-13 Thread Peng Fan
On Tue, Sep 13, 2016 at 02:24:31PM +0100, Julien Grall wrote: > > >On 13/09/16 14:12, Peng Fan wrote: >>Hi Julien, >>On Tue, Sep 13, 2016 at 01:59:01PM +0100, Julien Grall wrote: >>>Hello Peng, >>> >>>On 13/09/16 13:55, Peng Fan wrote: On AArch64 SoCs, some IPs may only have the capability to

Re: [Xen-devel] [RFC] xen/arm: domain_build: introduce dom0_lowmem bootargs

2016-09-13 Thread Julien Grall
On 13/09/16 14:12, Peng Fan wrote: Hi Julien, On Tue, Sep 13, 2016 at 01:59:01PM +0100, Julien Grall wrote: Hello Peng, On 13/09/16 13:55, Peng Fan wrote: On AArch64 SoCs, some IPs may only have the capability to access 32bits address space. The physical memory assigned for Dom0 maybe not

Re: [Xen-devel] [RFC] xen/arm: domain_build: introduce dom0_lowmem bootargs

2016-09-13 Thread Peng Fan
Hi Julien, On Tue, Sep 13, 2016 at 01:59:01PM +0100, Julien Grall wrote: >Hello Peng, > >On 13/09/16 13:55, Peng Fan wrote: >>On AArch64 SoCs, some IPs may only have the capability to access >>32bits address space. The physical memory assigned for Dom0 maybe >>not in 4GB address space, then the

Re: [Xen-devel] [RFC] xen/arm: domain_build: introduce dom0_lowmem bootargs

2016-09-13 Thread Julien Grall
Hello Peng, On 13/09/16 13:55, Peng Fan wrote: On AArch64 SoCs, some IPs may only have the capability to access 32bits address space. The physical memory assigned for Dom0 maybe not in 4GB address space, then the IPs will not work properly. Introduce dom0_lowmem bootargs, user could pass

[Xen-devel] [RFC] xen/arm: domain_build: introduce dom0_lowmem bootargs

2016-09-13 Thread Peng Fan
On AArch64 SoCs, some IPs may only have the capability to access 32bits address space. The physical memory assigned for Dom0 maybe not in 4GB address space, then the IPs will not work properly. Introduce dom0_lowmem bootargs, user could pass "dom0_lowmem=xx" to xen. It means how much memory user