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Re: [PATCH 13/15] x86/hyperlaunch: add memory parsing to domain config
- To: "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jason Andryuk <jason.andryuk@xxxxxxx>
- Date: Mon, 25 Nov 2024 19:03:39 -0500
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- Cc: <christopher.w.clark@xxxxxxxxx>, <stefano.stabellini@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Tue, 26 Nov 2024 01:46:00 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 2024-11-23 13:20, Daniel P. Smith wrote:
Add three properties, memory, mem-min, and mem-max, to the domain node device
tree parsing to define the memory allocation for a domain. All three fields are
expressed in kb and written as a u64 in the device tree entries.
Signed-off-by: Daniel P. Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx>
---
diff --git a/xen/arch/x86/dom0_build.c b/xen/arch/x86/dom0_build.c
index c231191faec7..1c3b7ff0e658 100644
--- a/xen/arch/x86/dom0_build.c
+++ b/xen/arch/x86/dom0_build.c
@@ -609,6 +609,14 @@ int __init construct_dom0(struct boot_domain *bd)
process_pending_softirqs();
+ /* If param dom0_size was not set and HL config provided memory size */
+ if ( !get_memsize(&dom0_size, LONG_MAX) && bd->mem_pages )
+ dom0_size.nr_pages = bd->mem_pages;
+ if ( !get_memsize(&dom0_min_size, LONG_MAX) && bd->min_pages )
+ dom0_size.nr_pages = bd->min_pages;
+ if ( !get_memsize(&dom0_max_size, LONG_MAX) && bd->max_pages )
+ dom0_size.nr_pages = bd->max_pages;
+
This placement seems a little random. Can this move into
dom0_compute_nr_pages()?
if ( is_hvm_domain(d) )
rc = dom0_construct_pvh(bd);
else if ( is_pv_domain(d) )
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