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author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2015-06-29 12:51:05 -0400 |
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committer | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2015-09-10 12:04:30 +0000 |
commit | 20a544c7dc2428e8816ed4a87af732884e885f2d (patch) | |
tree | 97119891ec77045b67630537a566e089c141291d /configure | |
parent | 52c7265f602701751b55d437b347bd73debf9d91 (diff) | |
download | qemu-20a544c7dc2428e8816ed4a87af732884e885f2d.zip qemu-20a544c7dc2428e8816ed4a87af732884e885f2d.tar.gz qemu-20a544c7dc2428e8816ed4a87af732884e885f2d.tar.bz2 |
xen: use errno instead of rc for xc_domain_add_to_physmap
In Xen 4.6 commit cd2f100f0f61b3f333d52d1737dd73f02daee592
"libxc: Fix do_memory_op to return negative value on errors"
made the libxc API less odd-ball: On errors, return value is
-1 and error code is in errno. On success the return value
is either 0 or an positive value.
Since we could be running with an old toolstack in which the
Exx value is in rc or the newer, we add an wrapper around
the xc_domain_add_to_physmap (called xen_xc_domain_add_to_physmap)
which will always return the EXX.
Xen 4.6 did not change the libxc functions mentioned (same parameters)
so we piggyback on the fact that Xen 4.6 has a new function:
commit 504ed2053362381ac01b98db9313454488b7db40 "tools/libxc: Expose
new hypercall xc_reserved_device_memory_map" and check for that.
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Suggested-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Diffstat (limited to 'configure')
-rwxr-xr-x | configure | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -1890,6 +1890,7 @@ int main(void) { xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0); xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000); xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL); + xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0); return 0; } EOF |