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2024-03-09hw/xen: Use target-agnostic qemu_target_page_bits()Philippe Mathieu-Daudé1-2/+4
Instead of the target-specific TARGET_PAGE_BITS definition, use qemu_target_page_bits() which is target agnostic. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Message-Id: <20231114143816.71079-15-philmd@linaro.org>
2024-03-09hw/xen: Rename 'ram_memory' global variable as 'xen_memory'Philippe Mathieu-Daudé1-3/+3
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>
2024-02-02hw/xen: convert stderr prints to error/warn reportsManos Pitsidianakis1-6/+6
According to the QEMU Coding Style document: > Do not use printf(), fprintf() or monitor_printf(). Instead, use > error_report() or error_vreport() from error-report.h. This ensures the > error is reported in the right place (current monitor or stderr), and in > a uniform format. > Use error_printf() & friends to print additional information. This commit changes fprintfs that report warnings and errors to the appropriate report functions. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 42a8953553cf68e8bacada966f93af4fbce45919.1706544115.git.manos.pitsidianakis@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-02-02hw/xen/xen-hvm-common.c: convert DPRINTF to tracepointsManos Pitsidianakis1-17/+18
Tracing DPRINTFs to stderr might not be desired. A developer that relies on tracepoints should be able to opt-in to each tracepoint and rely on QEMU's log redirection, instead of stderr by default. This commit converts DPRINTFs in this file that are used for tracing into tracepoints. Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: b000ab73022dfeb7a7ab0ee8fd0f41fb208adaf0.1706544115.git.manos.pitsidianakis@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-01-04cpus: check running not RUN_STATE_RUNNINGSteve Sistare1-1/+1
When a vm transitions from running to suspended, runstate notifiers are not called, so the notifiers still think the vm is running. Hence, when we call vm_start to restore the suspended state, we call vm_state_notify with running=1. However, some notifiers check for RUN_STATE_RUNNING. They must check the running boolean instead. No functional change. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Peter Xu <peterx@redhat.com> Link: https://lore.kernel.org/r/1704312341-66640-4-git-send-email-steven.sistare@oracle.com Signed-off-by: Peter Xu <peterx@redhat.com>
2023-08-01xen: Don't pass MemoryListener around by valuePeter Maydell1-4/+4
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>
2023-06-28exec/memory: Add symbolic value for memory listener priority for accelIsaku Yamahata1-1/+1
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>
2023-06-15hw/xen/xen-hvm-common: Use g_new and error_reportVikram Garhwal1-6/+6
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>
2023-06-15hw/xen/xen-hvm-common: skip ioreq creation on ioreq registration failureStefano Stabellini1-19/+38
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>
2023-06-15xen-hvm: reorganize xen-hvm and move common function to xen-hvm-commonStefano Stabellini1-0/+860
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>