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xen: Add XEN_DISABLED mode and make it default

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Also set XEN_ATTACH mode in xen_init() to reflect the truth; not that
anyone ever cared before. It was *only* ever checked in xen_init_pv()
before.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
This commit is contained in:
David Woodhouse 2022-12-12 22:32:54 +00:00
parent 820c1aba51
commit faa4e80071
3 changed files with 6 additions and 3 deletions
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2
accel/xen/xen-all.c
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@ -171,6 +171,8 @@ static int xen_init(MachineState *ms)
* opt out of system RAM being allocated by generic code
*/
mc->default_ram_id = NULL;
xen_mode = XEN_ATTACH;
return 0;
}

5
include/hw/xen/xen.h
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@ -22,8 +22,9 @@
/* xen-machine.c */
enum xen_mode {
XEN_EMULATE = 0, // xen emulation, using xenner (default)
XEN_ATTACH // attach to xen domain created by libxl
XEN_DISABLED = 0, /* xen support disabled (default) */
XEN_ATTACH, /* attach to xen domain created by libxl */
XEN_EMULATE, /* emulate Xen within QEMU */
};
extern uint32_t xen_domid;

2
softmmu/globals.c
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@ -63,5 +63,5 @@ QemuUUID qemu_uuid;
bool qemu_uuid_set;
uint32_t xen_domid;
enum xen_mode xen_mode = XEN_EMULATE;
enum xen_mode xen_mode = XEN_DISABLED;
bool xen_domid_restrict;