diff options
| author | David Woodhouse <dwmw@amazon.co.uk> | 2022-12-16 23:40:57 +0000 |
|---|---|---|
| committer | David Woodhouse <dwmw@amazon.co.uk> | 2023-03-01 09:07:52 +0000 |
| commit | 28b7ae94a21d37f38f7b68a9f40fa521144898a6 (patch) | |
| tree | 26ed653f30b423f86ece11398895a3a6ec0c3c1d /hw/i386/kvm | |
| parent | e33cb789afd3aedbe181b78fd75d04a5c48f7cba (diff) | |
| download | qemu-28b7ae94a21d37f38f7b68a9f40fa521144898a6.zip qemu-28b7ae94a21d37f38f7b68a9f40fa521144898a6.tar.gz qemu-28b7ae94a21d37f38f7b68a9f40fa521144898a6.tar.bz2 | |
i386/xen: Implement HYPERVISOR_grant_table_op and GNTTABOP_[gs]et_verson
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
Diffstat (limited to 'hw/i386/kvm')
| -rw-r--r-- | hw/i386/kvm/xen_gnttab.c | 31 | ||||
| -rw-r--r-- | hw/i386/kvm/xen_gnttab.h | 5 |
2 files changed, 36 insertions, 0 deletions
diff --git a/hw/i386/kvm/xen_gnttab.c b/hw/i386/kvm/xen_gnttab.c index 72e87ae..b54a94e 100644 --- a/hw/i386/kvm/xen_gnttab.c +++ b/hw/i386/kvm/xen_gnttab.c @@ -180,3 +180,34 @@ int xen_gnttab_map_page(uint64_t idx, uint64_t gfn) return 0; } +int xen_gnttab_set_version_op(struct gnttab_set_version *set) +{ + int ret; + + switch (set->version) { + case 1: + ret = 0; + break; + + case 2: + /* Behave as before set_version was introduced. */ + ret = -ENOSYS; + break; + + default: + ret = -EINVAL; + } + + set->version = 1; + return ret; +} + +int xen_gnttab_get_version_op(struct gnttab_get_version *get) +{ + if (get->dom != DOMID_SELF && get->dom != xen_domid) { + return -ESRCH; + } + + get->version = 1; + return 0; +} diff --git a/hw/i386/kvm/xen_gnttab.h b/hw/i386/kvm/xen_gnttab.h index a7caa94..7957967 100644 --- a/hw/i386/kvm/xen_gnttab.h +++ b/hw/i386/kvm/xen_gnttab.h @@ -15,4 +15,9 @@ void xen_gnttab_create(void); int xen_gnttab_map_page(uint64_t idx, uint64_t gfn); +struct gnttab_set_version; +struct gnttab_get_version; +int xen_gnttab_set_version_op(struct gnttab_set_version *set); +int xen_gnttab_get_version_op(struct gnttab_get_version *get); + #endif /* QEMU_XEN_GNTTAB_H */ |