From: "Daniel P. Smith" <dpsmith@apertussolutions.com>
Look for a subnode of type `multiboot,ramdisk` within a domain node and
parse via the fdt_read_multiboot_module() helper. After a successful
helper call, the module index is returned and the module is guaranteed
to be in the module list.
Fix unused typo in adjacent comment.
Signed-off-by: Daniel P. Smith <dpsmith@apertussolutions.com>
Signed-off-by: Jason Andryuk <jason.andryuk@amd.com>
Signed-off-by: Alejandro Vallejo <agarciav@amd.com>
---
v4:
* s/XENLOG_ERR/XENLOG_WARNING/ on duplicate ramdisk.
* Removed stray ")" in printk
* s/else if/if/ (because of continue)
* Removed trailing continue
---
xen/arch/x86/setup.c | 4 ++--
xen/common/domain-builder/fdt.c | 25 +++++++++++++++++++++++++
2 files changed, 27 insertions(+), 2 deletions(-)
diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
index 4cae13163b..76ceb5221f 100644
--- a/xen/arch/x86/setup.c
+++ b/xen/arch/x86/setup.c
@@ -2150,11 +2150,11 @@ void asmlinkage __init noreturn __start_xen(void)
* At this point all capabilities that consume boot modules should have
* claimed their boot modules. Find the first unclaimed boot module and
* claim it as the initrd ramdisk. Do a second search to see if there are
- * any remaining unclaimed boot modules, and report them as unusued initrd
+ * any remaining unclaimed boot modules, and report them as unused initrd
* candidates.
*/
initrdidx = first_boot_module_index(bi, BOOTMOD_UNKNOWN);
- if ( initrdidx < MAX_NR_BOOTMODS )
+ if ( !bi->hyperlaunch_enabled && initrdidx < MAX_NR_BOOTMODS )
{
bi->mods[initrdidx].type = BOOTMOD_RAMDISK;
bi->domains[0].module = &bi->mods[initrdidx];
diff --git a/xen/common/domain-builder/fdt.c b/xen/common/domain-builder/fdt.c
index 50fde2d007..c0f526a4ce 100644
--- a/xen/common/domain-builder/fdt.c
+++ b/xen/common/domain-builder/fdt.c
@@ -216,6 +216,31 @@ static int __init process_domain_node(
bd->kernel->fdt_cmdline = fdt_get_prop_offset(
fdt, node, "bootargs", &bd->kernel->cmdline_pa);
}
+ else if ( !fdt_node_check_compatible(fdt, node, "multiboot,ramdisk") )
+ {
+ int idx;
+
+ if ( bd->module )
+ {
+ printk(XENLOG_WARNING
+ "Duplicate module for domain %s\n", name);
+ continue;
+ }
+
+ idx = fdt_read_multiboot_module(fdt, node, address_cells,
+ size_cells, bi);
+ if ( idx < 0 )
+ {
+ printk(XENLOG_ERR
+ " failed processing module for domain %s\n",
+ name);
+ return -EINVAL;
+ }
+
+ printk(XENLOG_INFO " module: multiboot-index=%d\n", idx);
+ bi->mods[idx].type = BOOTMOD_RAMDISK;
+ bd->module = &bi->mods[idx];
+ }
}
if ( !bd->kernel )
--
2.43.0On Thu, Apr 17, 2025 at 01:48:30PM +0100, Alejandro Vallejo wrote:
> From: "Daniel P. Smith" <dpsmith@apertussolutions.com>
>
> Look for a subnode of type `multiboot,ramdisk` within a domain node and
> parse via the fdt_read_multiboot_module() helper. After a successful
> helper call, the module index is returned and the module is guaranteed
> to be in the module list.
>
> Fix unused typo in adjacent comment.
>
> Signed-off-by: Daniel P. Smith <dpsmith@apertussolutions.com>
> Signed-off-by: Jason Andryuk <jason.andryuk@amd.com>
> Signed-off-by: Alejandro Vallejo <agarciav@amd.com>
> ---
> v4:
> * s/XENLOG_ERR/XENLOG_WARNING/ on duplicate ramdisk.
> * Removed stray ")" in printk
> * s/else if/if/ (because of continue)
> * Removed trailing continue
> ---
> xen/arch/x86/setup.c | 4 ++--
> xen/common/domain-builder/fdt.c | 25 +++++++++++++++++++++++++
> 2 files changed, 27 insertions(+), 2 deletions(-)
>
> diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
> index 4cae13163b..76ceb5221f 100644
> --- a/xen/arch/x86/setup.c
> +++ b/xen/arch/x86/setup.c
> @@ -2150,11 +2150,11 @@ void asmlinkage __init noreturn __start_xen(void)
> * At this point all capabilities that consume boot modules should have
> * claimed their boot modules. Find the first unclaimed boot module and
> * claim it as the initrd ramdisk. Do a second search to see if there are
> - * any remaining unclaimed boot modules, and report them as unusued initrd
> + * any remaining unclaimed boot modules, and report them as unused initrd
> * candidates.
> */
> initrdidx = first_boot_module_index(bi, BOOTMOD_UNKNOWN);
> - if ( initrdidx < MAX_NR_BOOTMODS )
> + if ( !bi->hyperlaunch_enabled && initrdidx < MAX_NR_BOOTMODS )
> {
> bi->mods[initrdidx].type = BOOTMOD_RAMDISK;
> bi->domains[0].module = &bi->mods[initrdidx];
> diff --git a/xen/common/domain-builder/fdt.c b/xen/common/domain-builder/fdt.c
> index 50fde2d007..c0f526a4ce 100644
> --- a/xen/common/domain-builder/fdt.c
> +++ b/xen/common/domain-builder/fdt.c
> @@ -216,6 +216,31 @@ static int __init process_domain_node(
> bd->kernel->fdt_cmdline = fdt_get_prop_offset(
> fdt, node, "bootargs", &bd->kernel->cmdline_pa);
> }
> + else if ( !fdt_node_check_compatible(fdt, node, "multiboot,ramdisk") )
> + {
> + int idx;
> +
> + if ( bd->module )
> + {
> + printk(XENLOG_WARNING
> + "Duplicate module for domain %s\n", name);
> + continue;
> + }
> +
> + idx = fdt_read_multiboot_module(fdt, node, address_cells,
> + size_cells, bi);
> + if ( idx < 0 )
> + {
> + printk(XENLOG_ERR
> + " failed processing module for domain %s\n",
> + name);
> + return -EINVAL;
Propagate fdt_read_multiboot_module()'s error to the caller, i.e.:
return idx;
?
> + }
> +
> + printk(XENLOG_INFO " module: multiboot-index=%d\n", idx);
> + bi->mods[idx].type = BOOTMOD_RAMDISK;
> + bd->module = &bi->mods[idx];
> + }
> }
>
> if ( !bd->kernel )
> --
> 2.43.0
>
>
On Fri Apr 18, 2025 at 11:58 PM BST, dmkhn wrote:
> On Thu, Apr 17, 2025 at 01:48:30PM +0100, Alejandro Vallejo wrote:
>> From: "Daniel P. Smith" <dpsmith@apertussolutions.com>
>>
>> Look for a subnode of type `multiboot,ramdisk` within a domain node and
>> parse via the fdt_read_multiboot_module() helper. After a successful
>> helper call, the module index is returned and the module is guaranteed
>> to be in the module list.
>>
>> Fix unused typo in adjacent comment.
>>
>> Signed-off-by: Daniel P. Smith <dpsmith@apertussolutions.com>
>> Signed-off-by: Jason Andryuk <jason.andryuk@amd.com>
>> Signed-off-by: Alejandro Vallejo <agarciav@amd.com>
>> ---
>> v4:
>> * s/XENLOG_ERR/XENLOG_WARNING/ on duplicate ramdisk.
>> * Removed stray ")" in printk
>> * s/else if/if/ (because of continue)
>> * Removed trailing continue
>> ---
>> xen/arch/x86/setup.c | 4 ++--
>> xen/common/domain-builder/fdt.c | 25 +++++++++++++++++++++++++
>> 2 files changed, 27 insertions(+), 2 deletions(-)
>>
>> diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
>> index 4cae13163b..76ceb5221f 100644
>> --- a/xen/arch/x86/setup.c
>> +++ b/xen/arch/x86/setup.c
>> @@ -2150,11 +2150,11 @@ void asmlinkage __init noreturn __start_xen(void)
>> * At this point all capabilities that consume boot modules should have
>> * claimed their boot modules. Find the first unclaimed boot module and
>> * claim it as the initrd ramdisk. Do a second search to see if there are
>> - * any remaining unclaimed boot modules, and report them as unusued initrd
>> + * any remaining unclaimed boot modules, and report them as unused initrd
>> * candidates.
>> */
>> initrdidx = first_boot_module_index(bi, BOOTMOD_UNKNOWN);
>> - if ( initrdidx < MAX_NR_BOOTMODS )
>> + if ( !bi->hyperlaunch_enabled && initrdidx < MAX_NR_BOOTMODS )
>> {
>> bi->mods[initrdidx].type = BOOTMOD_RAMDISK;
>> bi->domains[0].module = &bi->mods[initrdidx];
>> diff --git a/xen/common/domain-builder/fdt.c b/xen/common/domain-builder/fdt.c
>> index 50fde2d007..c0f526a4ce 100644
>> --- a/xen/common/domain-builder/fdt.c
>> +++ b/xen/common/domain-builder/fdt.c
>> @@ -216,6 +216,31 @@ static int __init process_domain_node(
>> bd->kernel->fdt_cmdline = fdt_get_prop_offset(
>> fdt, node, "bootargs", &bd->kernel->cmdline_pa);
>> }
>> + else if ( !fdt_node_check_compatible(fdt, node, "multiboot,ramdisk") )
>> + {
>> + int idx;
>> +
>> + if ( bd->module )
>> + {
>> + printk(XENLOG_WARNING
>> + "Duplicate module for domain %s\n", name);
>> + continue;
>> + }
>> +
>> + idx = fdt_read_multiboot_module(fdt, node, address_cells,
>> + size_cells, bi);
>> + if ( idx < 0 )
>> + {
>> + printk(XENLOG_ERR
>> + " failed processing module for domain %s\n",
>> + name);
>> + return -EINVAL;
>
> Propagate fdt_read_multiboot_module()'s error to the caller, i.e.:
>
> return idx;
Sure
Cheers,
Alejandro
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