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-rw-r--r--arch/x86/xen/enlighten.c9
-rw-r--r--drivers/block/xen-blkfront.c2
-rw-r--r--drivers/char/hvc_xen.c6
-rw-r--r--drivers/input/xen-kbdfront.c4
-rw-r--r--drivers/net/xen-netfront.c6
-rw-r--r--drivers/video/xen-fbfront.c4
-rw-r--r--drivers/xen/balloon.c2
-rw-r--r--drivers/xen/grant-table.c2
-rw-r--r--drivers/xen/xenbus/xenbus_probe.c8
-rw-r--r--include/asm-x86/xen/hypervisor.h14
10 files changed, 36 insertions, 21 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 53afa14eb31..b106e825d26 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -56,6 +56,9 @@ EXPORT_SYMBOL_GPL(hypercall_page);
DEFINE_PER_CPU(struct vcpu_info *, xen_vcpu);
DEFINE_PER_CPU(struct vcpu_info, xen_vcpu_info);
+enum xen_domain_type xen_domain_type = XEN_NATIVE;
+EXPORT_SYMBOL_GPL(xen_domain_type);
+
/*
* Identity map, in addition to plain kernel map. This needs to be
* large enough to allocate page table pages to allocate the rest.
@@ -1613,6 +1616,8 @@ asmlinkage void __init xen_start_kernel(void)
if (!xen_start_info)
return;
+ xen_domain_type = XEN_PV_DOMAIN;
+
BUG_ON(memcmp(xen_start_info->magic, "xen-3", 5) != 0);
xen_setup_features();
@@ -1650,7 +1655,7 @@ asmlinkage void __init xen_start_kernel(void)
/* Prevent unwanted bits from being set in PTEs. */
__supported_pte_mask &= ~_PAGE_GLOBAL;
- if (!is_initial_xendomain())
+ if (!xen_initial_domain())
__supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD);
/* Don't do the full vcpu_info placement stuff until we have a
@@ -1685,7 +1690,7 @@ asmlinkage void __init xen_start_kernel(void)
boot_params.hdr.ramdisk_size = xen_start_info->mod_len;
boot_params.hdr.cmd_line_ptr = __pa(xen_start_info->cmd_line);
- if (!is_initial_xendomain()) {
+ if (!xen_initial_domain()) {
add_preferred_console("xenboot", 0, NULL);
add_preferred_console("tty", 0, NULL);
add_preferred_console("hvc", 0, NULL);
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 3ca643cafcc..d5e75325515 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1032,7 +1032,7 @@ static struct xenbus_driver blkfront = {
static int __init xlblk_init(void)
{
- if (!is_running_on_xen())
+ if (!xen_domain())
return -ENODEV;
if (register_blkdev(XENVBD_MAJOR, DEV_NAME)) {
diff --git a/drivers/char/hvc_xen.c b/drivers/char/hvc_xen.c
index 6b70aa66a58..538ceea5e7d 100644
--- a/drivers/char/hvc_xen.c
+++ b/drivers/char/hvc_xen.c
@@ -108,8 +108,8 @@ static int __init xen_init(void)
{
struct hvc_struct *hp;
- if (!is_running_on_xen() ||
- is_initial_xendomain() ||
+ if (!xen_pv_domain() ||
+ xen_initial_domain() ||
!xen_start_info->console.domU.evtchn)
return -ENODEV;
@@ -142,7 +142,7 @@ static void __exit xen_fini(void)
static int xen_cons_init(void)
{
- if (!is_running_on_xen())
+ if (!xen_pv_domain())
return 0;
hvc_instantiate(HVC_COOKIE, 0, &hvc_ops);
diff --git a/drivers/input/xen-kbdfront.c b/drivers/input/xen-kbdfront.c
index 9ce3b3baf3a..3ab6362f043 100644
--- a/drivers/input/xen-kbdfront.c
+++ b/drivers/input/xen-kbdfront.c
@@ -335,11 +335,11 @@ static struct xenbus_driver xenkbd = {
static int __init xenkbd_init(void)
{
- if (!is_running_on_xen())
+ if (!xen_domain())
return -ENODEV;
/* Nothing to do if running in dom0. */
- if (is_initial_xendomain())
+ if (xen_initial_domain())
return -ENODEV;
return xenbus_register_frontend(&xenkbd);
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index c749bdba214..3c3dd403f5d 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1794,10 +1794,10 @@ static struct xenbus_driver netfront = {
static int __init netif_init(void)
{
- if (!is_running_on_xen())
+ if (!xen_domain())
return -ENODEV;
- if (is_initial_xendomain())
+ if (xen_initial_domain())
return 0;
printk(KERN_INFO "Initialising Xen virtual ethernet driver.\n");
@@ -1809,7 +1809,7 @@ module_init(netif_init);
static void __exit netif_exit(void)
{
- if (is_initial_xendomain())
+ if (xen_initial_domain())
return;
xenbus_unregister_driver(&netfront);
diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c
index 47ed39b52f9..a463b3dd837 100644
--- a/drivers/video/xen-fbfront.c
+++ b/drivers/video/xen-fbfront.c
@@ -680,11 +680,11 @@ static struct xenbus_driver xenfb = {
static int __init xenfb_init(void)
{
- if (!is_running_on_xen())
+ if (!xen_domain())
return -ENODEV;
/* Nothing to do if running in dom0. */
- if (is_initial_xendomain())
+ if (xen_initial_domain())
return -ENODEV;
return xenbus_register_frontend(&xenfb);
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index fff987b10e0..a51f3e17a5f 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -419,7 +419,7 @@ static int __init balloon_init(void)
unsigned long pfn;
struct page *page;
- if (!is_running_on_xen())
+ if (!xen_pv_domain())
return -ENODEV;
pr_info("xen_balloon: Initialising balloon driver.\n");
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index e9e11168616..06592b9da83 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -508,7 +508,7 @@ static int __devinit gnttab_init(void)
unsigned int max_nr_glist_frames, nr_glist_frames;
unsigned int nr_init_grefs;
- if (!is_running_on_xen())
+ if (!xen_domain())
return -ENODEV;
nr_grant_frames = 1;
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index 57ceb5346b7..7f24a98a446 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -814,7 +814,7 @@ static int __init xenbus_probe_init(void)
DPRINTK("");
err = -ENODEV;
- if (!is_running_on_xen())
+ if (!xen_domain())
goto out_error;
/* Register ourselves with the kernel bus subsystem */
@@ -829,7 +829,7 @@ static int __init xenbus_probe_init(void)
/*
* Domain0 doesn't have a store_evtchn or store_mfn yet.
*/
- if (is_initial_xendomain()) {
+ if (xen_initial_domain()) {
/* dom0 not yet supported */
} else {
xenstored_ready = 1;
@@ -846,7 +846,7 @@ static int __init xenbus_probe_init(void)
goto out_unreg_back;
}
- if (!is_initial_xendomain())
+ if (!xen_initial_domain())
xenbus_probe(NULL);
return 0;
@@ -937,7 +937,7 @@ static void wait_for_devices(struct xenbus_driver *xendrv)
unsigned long timeout = jiffies + 10*HZ;
struct device_driver *drv = xendrv ? &xendrv->driver : NULL;
- if (!ready_to_wait_for_devices || !is_running_on_xen())
+ if (!ready_to_wait_for_devices || !xen_domain())
return;
while (exists_disconnected_device(drv)) {
diff --git a/include/asm-x86/xen/hypervisor.h b/include/asm-x86/xen/hypervisor.h
index 8e15dd28c91..d9dd28caa50 100644
--- a/include/asm-x86/xen/hypervisor.h
+++ b/include/asm-x86/xen/hypervisor.h
@@ -55,7 +55,6 @@
/* arch/i386/kernel/setup.c */
extern struct shared_info *HYPERVISOR_shared_info;
extern struct start_info *xen_start_info;
-#define is_initial_xendomain() (xen_start_info->flags & SIF_INITDOMAIN)
/* arch/i386/mach-xen/evtchn.c */
/* Force a proper event-channel callback from Xen. */
@@ -68,6 +67,17 @@ u64 jiffies_to_st(unsigned long jiffies);
#define MULTI_UVMFLAGS_INDEX 3
#define MULTI_UVMDOMID_INDEX 4
-#define is_running_on_xen() (xen_start_info ? 1 : 0)
+enum xen_domain_type {
+ XEN_NATIVE,
+ XEN_PV_DOMAIN,
+ XEN_HVM_DOMAIN,
+};
+
+extern enum xen_domain_type xen_domain_type;
+
+#define xen_domain() (xen_domain_type != XEN_NATIVE)
+#define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN)
+#define xen_initial_domain() (xen_pv_domain() && xen_start_info->flags & SIF_INITDOMAIN)
+#define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN)
#endif /* __HYPERVISOR_H__ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 08:46:09 +0000