kernel/linux.git/include/xen/arm/hypercall.h, branch v6.6.134

xen: allow pv-only hypercalls only with CONFIG_XEN_PV

2021-11-02T13:11:01+00:00

Put the definitions of the hypercalls usable only by pv guests inside CONFIG_XEN_PV sections. On Arm two dummy functions related to pv hypercalls can be removed. While at it remove the no longer supported tmem hypercall definition. Signed-off-by: Juergen Gross Link: https://lore.kernel.org/r/20211028081221.2475-3-jgross@suse.com Reviewed-by: Boris Ostrovsky Signed-off-by: Boris Ostrovsky

xen: fix HYPERVISOR_dm_op() prototype

2017-06-08T17:40:14+00:00

Change the third parameter to be the required struct xen_dm_op_buf * instead of a generic void * (which blindly accepts any pointer). Signed-off-by: Sergey Dyasli Reviewed-by: Juergen Gross Reviewed-by: Stefano Stabellini Signed-off-by: Juergen Gross

xen/privcmd: Add IOCTL_PRIVCMD_DM_OP

2017-02-14T20:13:43+00:00

Recently a new dm_op[1] hypercall was added to Xen to provide a mechanism for restricting device emulators (such as QEMU) to a limited set of hypervisor operations, and being able to audit those operations in the kernel of the domain in which they run. This patch adds IOCTL_PRIVCMD_DM_OP as gateway for __HYPERVISOR_dm_op. NOTE: There is no requirement for user-space code to bounce data through locked memory buffers (as with IOCTL_PRIVCMD_HYPERCALL) since privcmd has enough information to lock the original buffers directly. [1] http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=524a98c2 Signed-off-by: Paul Durrant Acked-by: Stefano Stabellini Signed-off-by: Boris Ostrovsky

arm/arm64: xen: Move shared architecture headers to include/xen/arm

2016-12-02T19:49:55+00:00

ARM and arm64 Xen ports share a number of headers, leading to packaging issues when these headers needs to be exported, as it breaks the reasonable requirement that an architecture port has self-contained headers. Fix the issue by moving the 5 header files to include/xen/arm, and keep local placeholders to include the relevant files. Signed-off-by: Marc Zyngier Reviewed-by: Stefano Stabellini