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hw/xen: Add xen_gnttab device for grant table emulation

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Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
This commit is contained in:
David Woodhouse 2022-12-16 15:50:26 +00:00
parent 6f43f2ee49
commit a28b0fc034
5 changed files with 135 additions and 0 deletions
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3
target/i386/kvm/xen-emu.c
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@ -25,6 +25,7 @@
#include "hw/i386/apic-msidef.h"
#include "hw/i386/kvm/xen_overlay.h"
#include "hw/i386/kvm/xen_evtchn.h"
#include "hw/i386/kvm/xen_gnttab.h"
#include "hw/xen/interface/version.h"
#include "hw/xen/interface/sched.h"
@ -563,6 +564,8 @@ static int add_to_physmap_one(uint32_t space, uint64_t idx, uint64_t gfn)
return xen_set_shared_info(gfn);
case XENMAPSPACE_grant_table:
return xen_gnttab_map_page(idx, gfn);
case XENMAPSPACE_gmfn:
case XENMAPSPACE_gmfn_range:
return -ENOTSUP;