Coverity points out (CID 1513106, 1513107) that MemoryListener is a
192 byte struct which we are passing around by value. Switch to
passing a const pointer into xen_register_ioreq() and then to
xen_do_ioreq_register(). We can also make the file-scope
MemoryListener variables const, since nothing changes them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230718101057.1110979-1-peter.maydell@linaro.org>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Add MEMORY_LISTNER_PRIORITY_ACCEL for the symbolic value for the memory
listener to replace the hard-coded value 10 for accel.
No functional change intended.
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <feebe423becc6e2aa375f59f6abce9a85bc15abb.1687279702.git.isaku.yamahata@intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Replace g_malloc with g_new and perror with error_report.
Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Paul Durrant <paul@xen.org>
On ARM it is possible to have a functioning xenpv machine with only the
PV backends and no IOREQ server. If the IOREQ server creation fails continue
to the PV backends initialization.
Also, moved the IOREQ registration and mapping subroutine to new function
xen_do_ioreq_register().
Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Paul Durrant <paul@xen.org>
This patch does following:
1. creates arch_handle_ioreq() and arch_xen_set_memory(). This is done in
preparation for moving most of xen-hvm code to an arch-neutral location,
move the x86-specific portion of xen_set_memory to arch_xen_set_memory.
Also, move handle_vmport_ioreq to arch_handle_ioreq.
2. Pure code movement: move common functions to hw/xen/xen-hvm-common.c
Extract common functionalities from hw/i386/xen/xen-hvm.c and move them to
hw/xen/xen-hvm-common.c. These common functions are useful for creating
an IOREQ server.
xen_hvm_init_pc() contains the architecture independent code for creating
and mapping a IOREQ server, connecting memory and IO listeners, initializing
a xen bus and registering backends. Moved this common xen code to a new
function xen_register_ioreq() which can be used by both x86 and ARM machines.
Following functions are moved to hw/xen/xen-hvm-common.c:
xen_vcpu_eport(), xen_vcpu_ioreq(), xen_ram_alloc(), xen_set_memory(),
xen_region_add(), xen_region_del(), xen_io_add(), xen_io_del(),
xen_device_realize(), xen_device_unrealize(),
cpu_get_ioreq_from_shared_memory(), cpu_get_ioreq(), do_inp(),
do_outp(), rw_phys_req_item(), read_phys_req_item(),
write_phys_req_item(), cpu_ioreq_pio(), cpu_ioreq_move(),
cpu_ioreq_config(), handle_ioreq(), handle_buffered_iopage(),
handle_buffered_io(), cpu_handle_ioreq(), xen_main_loop_prepare(),
xen_hvm_change_state_handler(), xen_exit_notifier(),
xen_map_ioreq_server(), destroy_hvm_domain() and
xen_shutdown_fatal_error()
3. Removed static type from below functions:
1. xen_region_add()
2. xen_region_del()
3. xen_io_add()
4. xen_io_del()
5. xen_device_realize()
6. xen_device_unrealize()
7. xen_hvm_change_state_handler()
8. cpu_ioreq_pio()
9. xen_exit_notifier()
4. Replace TARGET_PAGE_SIZE with XC_PAGE_SIZE to match the page side with Xen.
Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
