Allow dom0 to be configured. Requires more patches to do something useful.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
---
arch/x86/xen/Kconfig | 26 ++++++++++++++++++++++++++
arch/x86/xen/enlighten.c | 5 +++--
2 files changed, 29 insertions(+), 2 deletions(-)
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 87b9ab1..e5c141a 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -36,3 +36,29 @@ config XEN_DEBUG_FS
help
Enable statistics output and various tuning options in debugfs.
Enabling this option may incur a significant performance overhead.
+
+config XEN_DOM0
+ bool "Enable Xen privileged domain support"
+ depends on XEN && X86_IO_APIC && ACPI
+ help
+ The Xen hypervisor requires a privileged domain ("dom0") to
+ actually manage the machine, provide devices drivers, etc.
+ This option enables dom0 support. A dom0 kernel can also
+ run as an unprivileged domU kernel, or a kernel running
+ native on bare hardware.
+
+# Dummy symbol since people have come to rely on the PRIVILEGED_GUEST
+# name in tools.
+config XEN_PRIVILEGED_GUEST
+ def_bool XEN_DOM0
+
+config XEN_PCI_PASSTHROUGH
+ bool #"Enable support for Xen PCI passthrough devices"
+ depends on XEN && PCI
+ help
+ Enable support for passing PCI devices through to
+ unprivileged domains. (COMPLETELY UNTESTED)
+
+config XEN_DOM0_PCI
+ def_bool y
+ depends on XEN_DOM0 && PCI
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 62d229a..676aaf8 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -169,9 +169,10 @@ static void __init xen_banner(void)
printk(KERN_INFO "Booting paravirtualized kernel on %s\n",
pv_info.name);
- printk(KERN_INFO "Xen version: %d.%d%s%s\n",
+ printk(KERN_INFO "Xen version: %d.%d%s%s%s\n",
version >> 16, version & 0xffff, extra.extraversion,
- xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? "
(preserve-AD)" : "");
+ xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? "
(preserve-AD)" : "",
+ xen_initial_domain() ? " (dom0)" : "");
}
static void xen_cpuid(unsigned int *ax, unsigned int *bx,
--
1.6.0.6
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