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| author | Sheng Yang <sheng@linux.intel.com> | 2010-05-14 12:39:33 +0100 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-07-22 16:45:35 -0700 |
| commit | bee6ab53e652a414af20392899879b58cd80d033 (patch) | |
| tree | 96351c583984ec497feae270f09f445a4703a676 /drivers/xen | |
| parent | 18f19aa62a267f2f759e278018f1032adf4c3774 (diff) | |
| download | linux-exynos-bee6ab53e652a414af20392899879b58cd80d033.tar.gz linux-exynos-bee6ab53e652a414af20392899879b58cd80d033.tar.bz2 linux-exynos-bee6ab53e652a414af20392899879b58cd80d033.zip | |
x86: early PV on HVM features initialization.
Initialize basic pv on hvm features adding a new Xen HVM specific
hypervisor_x86 structure.
Don't try to initialize xen-kbdfront and xen-fbfront when running on HVM
because the backends are not available.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 3479332113e9..d96fa75b45ec 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -56,6 +56,8 @@ #include <xen/events.h> #include <xen/page.h> +#include <xen/hvm.h> + #include "xenbus_comms.h" #include "xenbus_probe.h" @@ -805,11 +807,24 @@ static int __init xenbus_probe_init(void) if (xen_initial_domain()) { /* dom0 not yet supported */ } else { + if (xen_hvm_domain()) { + uint64_t v = 0; + err = hvm_get_parameter(HVM_PARAM_STORE_EVTCHN, &v); + if (err) + goto out_error; + xen_store_evtchn = (int)v; + err = hvm_get_parameter(HVM_PARAM_STORE_PFN, &v); + if (err) + goto out_error; + xen_store_mfn = (unsigned long)v; + xen_store_interface = ioremap(xen_store_mfn << PAGE_SHIFT, PAGE_SIZE); + } else { + xen_store_evtchn = xen_start_info->store_evtchn; + xen_store_mfn = xen_start_info->store_mfn; + xen_store_interface = mfn_to_virt(xen_store_mfn); + } xenstored_ready = 1; - xen_store_evtchn = xen_start_info->store_evtchn; - xen_store_mfn = xen_start_info->store_mfn; } - xen_store_interface = mfn_to_virt(xen_store_mfn); /* Initialize the interface to xenstore. */ err = xs_init(); |