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x86: early PV on HVM features initialization.

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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 <[email protected]>
Signed-off-by: Sheng Yang <[email protected]>
Signed-off-by: Yaozu (Eddie) Dong <[email protected]>
Signed-off-by: Jeremy Fitzhardinge <[email protected]>
This commit is contained in:
Sheng Yang 2010-05-14 12:39:33 +01:00 • committed by Jeremy Fitzhardinge
commit bee6ab53e6
6 changed files with 122 additions and 5 deletions
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21
drivers/xen/xenbus/xenbus_probe.c
View file

@ -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();