diff mbox series

[v9,5/6] x86/boot: introduce domid field to struct boot_domain

Message ID 20241115131204.32135-6-dpsmith@apertussolutions.com (mailing list archive)
State New
Headers show
Series Boot modules for Hyperlaunch | expand

Commit Message

Daniel P. Smith Nov. 15, 2024, 1:12 p.m. UTC
Add a domid field to struct boot_domain to hold the assigned domain id for the
domain. During initialization, ensure all instances of struct boot_domain have
the invalid domid to ensure that the domid must be set either by convention or
configuration.

Signed-off-by: Daniel P. Smith <dpsmith@apertussolutions.com>
Reviewed-by: Jason Andryuk <jason.andryuk@amd.com>
---
 xen/arch/x86/include/asm/bootdomain.h |  2 ++
 xen/arch/x86/setup.c                  | 12 +++++++-----
 2 files changed, 9 insertions(+), 5 deletions(-)

Comments

Daniel P. Smith Nov. 15, 2024, 3:31 p.m. UTC | #1
On 11/15/24 08:12, Daniel P. Smith wrote:
> Add a domid field to struct boot_domain to hold the assigned domain id for the
> domain. During initialization, ensure all instances of struct boot_domain have
> the invalid domid to ensure that the domid must be set either by convention or
> configuration.
> 
> Signed-off-by: Daniel P. Smith <dpsmith@apertussolutions.com>
> Reviewed-by: Jason Andryuk <jason.andryuk@amd.com>
> ---
>   xen/arch/x86/include/asm/bootdomain.h |  2 ++
>   xen/arch/x86/setup.c                  | 12 +++++++-----
>   2 files changed, 9 insertions(+), 5 deletions(-)
> 
> diff --git a/xen/arch/x86/include/asm/bootdomain.h b/xen/arch/x86/include/asm/bootdomain.h
> index 12c19ab37bd8..3873f916f854 100644
> --- a/xen/arch/x86/include/asm/bootdomain.h
> +++ b/xen/arch/x86/include/asm/bootdomain.h
> @@ -12,6 +12,8 @@ struct boot_module;
>   struct domain;
>   
>   struct boot_domain {
> +    domid_t domid;

There is no definition for domid_t in this file, the only reason it has 
yet to fail, is that everywhere it is included has xen.h included before it.

v/r,
dps
diff mbox series

Patch

diff --git a/xen/arch/x86/include/asm/bootdomain.h b/xen/arch/x86/include/asm/bootdomain.h
index 12c19ab37bd8..3873f916f854 100644
--- a/xen/arch/x86/include/asm/bootdomain.h
+++ b/xen/arch/x86/include/asm/bootdomain.h
@@ -12,6 +12,8 @@  struct boot_module;
 struct domain;
 
 struct boot_domain {
+    domid_t domid;
+
     struct boot_module *kernel;
     struct boot_module *ramdisk;
 
diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
index 2ccaa7dc965b..533a1e2bbe05 100644
--- a/xen/arch/x86/setup.c
+++ b/xen/arch/x86/setup.c
@@ -339,6 +339,9 @@  static struct boot_info *__init multiboot_fill_boot_info(
     /* Variable 'i' should be one entry past the last module. */
     bi->mods[i].type = BOOTMOD_XEN;
 
+    for ( i = 0; i < MAX_NR_BOOTDOMS; i++ )
+        bi->domains[i].domid = DOMID_INVALID;
+
     return bi;
 }
 
@@ -977,7 +980,6 @@  static struct domain *__init create_dom0(struct boot_info *bi)
     };
     struct boot_domain *bd = &bi->domains[0];
     struct domain *d;
-    domid_t domid;
 
     if ( opt_dom0_pvh )
     {
@@ -993,15 +995,15 @@  static struct domain *__init create_dom0(struct boot_info *bi)
         dom0_cfg.flags |= XEN_DOMCTL_CDF_iommu;
 
     /* Create initial domain.  Not d0 for pvshim. */
-    domid = get_initial_domain_id();
-    d = domain_create(domid, &dom0_cfg, pv_shim ? 0 : CDF_privileged);
+    bd->domid = get_initial_domain_id();
+    d = domain_create(bd->domid, &dom0_cfg, pv_shim ? 0 : CDF_privileged);
     if ( IS_ERR(d) )
-        panic("Error creating d%u: %ld\n", domid, PTR_ERR(d));
+        panic("Error creating d%u: %ld\n", bd->domid, PTR_ERR(d));
 
     init_dom0_cpuid_policy(d);
 
     if ( alloc_dom0_vcpu0(d) == NULL )
-        panic("Error creating d%uv0\n", domid);
+        panic("Error creating d%uv0\n", bd->domid);
 
     /* Grab the DOM0 command line. */
     if ( bd->kernel->cmdline_pa || bi->kextra )