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2025-03-04hw/xen/xen-hvm: Reduce included headersPhilippe Mathieu-Daudé1-11/+3
Have "hw/xen/xen-hvm-common.h" include the bare minimal set of headers. Adapt sources to avoid errors when refactoring unrelated headers such: include/hw/xen/xen-hvm-common.h:71:5: error: unknown type name ‘xenevtchn_handle’ 71 | xenevtchn_handle *xce_handle; | ^~~~~~~~~~~~~~~~ hw/xen/xen-hvm-common.c: In function ‘cpu_get_ioreq’: hw/xen/xen-hvm-common.c:227:13: error: implicit declaration of function ‘hw_error’ 227 | hw_error("Fatal error while trying to get io event!\n"); | ^~~~~~~~ | herror hw/xen/xen-hvm-common.c: In function ‘handle_ioreq’: hw/xen/xen-hvm-common.c:446:34: error: ‘target_ulong’ undeclared (first use in this function) 446 | (req->size < sizeof (target_ulong))) { | ^~~~~~~~~~~~ hw/i386/xen/xen-hvm.c: In function ‘xen_add_to_physmap’: hw/i386/xen/xen-hvm.c:298:22: error: implicit declaration of function ‘xen_replace_cache_entry’ 298 | uint8_t *p = xen_replace_cache_entry(phys_offset, start_addr, size); | ^~~~~~~~~~~~~~~~~~~~~~~ hw/i386/xen/xen-hvm.c:314:9: error: implicit declaration of function 'error_report' is invalid in C99 314 | error_report("relocate_memory %lu pages from GFN %"HWADDR_PRIx ^~~~~~~~~~~~ hw/i386/xen/xen-hvm.c: In function ‘xen_log_global_start’: hw/i386/xen/xen-hvm.c:465:9: error: implicit declaration of function ‘xen_enabled’ 465 | if (xen_enabled()) { | ^~~~~~~~~~~ hw/i386/xen/xen-hvm.c: In function ‘regs_to_cpu’: hw/i386/xen/xen-hvm.c:487:5: error: unknown type name ‘X86CPU’ 487 | X86CPU *cpu; | ^~~~~~ hw/i386/xen/xen-hvm.c:492:15: error: ‘R_EAX’ undeclared (first use in this function) 492 | env->regs[R_EAX] = req->data; | ^~~~~ | REG_RAX Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Anthony PERARD <anthony.perard@vates.tech> Message-Id: <20250218162618.46167-6-philmd@linaro.org>
2024-12-20include: Rename sysemu/ -> system/Philippe Mathieu-Daudé1-4/+4
Headers in include/sysemu/ are not only related to system *emulation*, they are also used by virtualization. Rename as system/ which is clearer. Files renamed manually then mechanical change using sed tool. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Lei Yang <leiyang@redhat.com> Message-Id: <20241203172445.28576-1-philmd@linaro.org>
2024-10-03hw/xen: Expose handle_bufioreq in xen_register_ioreqEdgar E. Iglesias1-0/+3
Expose handle_bufioreq in xen_register_ioreq(). This is to allow machines to enable or disable buffered ioreqs. No functional change since all callers still set it to HVM_IOREQSRV_BUFIOREQ_ATOMIC. Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
2024-06-09xen: mapcache: Add support for grant mappingsEdgar E. Iglesias1-0/+3
Add a second mapcache for grant mappings. The mapcache for grants needs to work with XC_PAGE_SIZE granularity since we can't map larger ranges than what has been granted to us. Like with foreign mappings (xen_memory), machines using grants are expected to initialize the xen_grants MR and map it into their address-map accordingly. CC: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2024-03-09hw/xen: Rename 'ram_memory' global variable as 'xen_memory'Philippe Mathieu-Daudé1-1/+1
To avoid a potential global variable shadow in hw/i386/pc_piix.c::pc_init1(), rename Xen's "ram_memory" as "xen_memory". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Message-Id: <20231114143816.71079-11-philmd@linaro.org>
2024-01-30include: Clean up includesPeter Maydell1-1/+0
This commit was created with scripts/clean-includes: ./scripts/clean-includes --git include include/*/*.h include/*/*/*.h All .c should include qemu/osdep.h first. The script performs three related cleanups: * Ensure .c files include qemu/osdep.h first. * Including it in a .h is redundant, since the .c already includes it. Drop such inclusions. * Likewise, including headers qemu/osdep.h includes is redundant. Drop these, too. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2023-08-01xen: Don't pass MemoryListener around by valuePeter Maydell1-1/+1
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>
2023-06-15xen-hvm: reorganize xen-hvm and move common function to xen-hvm-commonStefano Stabellini1-0/+99
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>