From f73eb9484bf07812db21de985cb9c1e4ad3c82a9 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Sat, 7 May 2022 07:48:26 +0200 Subject: [PATCH] pseries: allow setting stdout-path even on machines with a VGA -machine graphics=off is the usual way to tell the firmware or the OS that the user wants a serial console. The pseries machine however does not support this, and never adds the stdout-path node to the device tree if a VGA device is provided. This is in addition to the other magic behavior of VGA devices, which is to add a keyboard and mouse to the default USB bus. Split spapr->has_graphics in two variables so that the two behaviors can be separated: the USB devices remains the same, but the stdout-path is added even with "-device VGA -machine graphics=off". Reviewed-by: Daniel Henrique Barboza Signed-off-by: Paolo Bonzini Message-Id: <20220507054826.124936-1-pbonzini@redhat.com> Signed-off-by: Daniel Henrique Barboza --- hw/ppc/spapr.c | 12 ++++++++---- include/hw/ppc/spapr.h | 2 +- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 6de800524a..d112b85b4f 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -1066,7 +1066,7 @@ static void spapr_dt_chosen(SpaprMachineState *spapr, void *fdt, bool reset) _FDT(fdt_setprop_string(fdt, chosen, "qemu,boot-device", boot_device)); } - if (!spapr->has_graphics && stdout_path) { + if (spapr->want_stdout_path && stdout_path) { /* * "linux,stdout-path" and "stdout" properties are * deprecated by linux kernel. New platforms should only @@ -2712,6 +2712,7 @@ static void spapr_machine_init(MachineState *machine) const char *kernel_filename = machine->kernel_filename; const char *initrd_filename = machine->initrd_filename; PCIHostState *phb; + bool has_vga; int i; MemoryRegion *sysmem = get_system_memory(); long load_limit, fw_size; @@ -2950,9 +2951,12 @@ static void spapr_machine_init(MachineState *machine) } /* Graphics */ - if (spapr_vga_init(phb->bus, &error_fatal)) { - spapr->has_graphics = true; + has_vga = spapr_vga_init(phb->bus, &error_fatal); + if (has_vga) { + spapr->want_stdout_path = !machine->enable_graphics; machine->usb |= defaults_enabled() && !machine->usb_disabled; + } else { + spapr->want_stdout_path = true; } if (machine->usb) { @@ -2962,7 +2966,7 @@ static void spapr_machine_init(MachineState *machine) pci_create_simple(phb->bus, -1, "nec-usb-xhci"); } - if (spapr->has_graphics) { + if (has_vga) { USBBus *usb_bus = usb_bus_find(-1); usb_create_simple(usb_bus, "usb-kbd"); diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index 14b01c3f59..072dda2c72 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -194,7 +194,7 @@ struct SpaprMachineState { Vof *vof; uint64_t rtc_offset; /* Now used only during incoming migration */ struct PPCTimebase tb; - bool has_graphics; + bool want_stdout_path; uint32_t vsmt; /* Virtual SMT mode (KVM's "core stride") */ /* Nested HV support (TCG only) */