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Re: [Xen-devel] [PATCH V1] xen/arm: domain_build: introduce dom0_lowmem bootargs
Hello,
On 14/09/16 08:41, Peng Fan wrote:
On Wed, Sep 14, 2016 at 08:23:24AM +0100, Julien Grall wrote:
diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 35ab08d..cc71e6f 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -28,6 +28,8 @@
static unsigned int __initdata opt_dom0_max_vcpus;
integer_param("dom0_max_vcpus", opt_dom0_max_vcpus);
+static bool_t __initdata opt_dom0_use_lowmem;
+boolean_param("dom0_use_lowmem", opt_dom0_use_lowmem);
int dom0_11_mapping = 1;
@@ -244,7 +246,7 @@ static void allocate_memory(struct domain *d, struct
kernel_info *kinfo)
unsigned int order = get_11_allocation_size(kinfo->unassigned_mem);
int i;
- bool_t lowmem = is_32bit_domain(d);
+ bool_t lowmem = is_32bit_domain(d) || opt_dom0_use_lowmem;
unsigned int bits;
Pass "dom0_use_lowmem=1" to xen to allocate lowmem as much as possible.
Again, what is the benefit to have a command line option for that?
Regards,
--
Julien Grall
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