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authorPaolo Bonzini <pbonzini@redhat.com>2022-05-07 07:48:26 +0200
committerDaniel Henrique Barboza <danielhb413@gmail.com>2022-05-26 17:11:32 -0300
commitf73eb9484bf07812db21de985cb9c1e4ad3c82a9 (patch)
treec5f2d3f3b78c48d712b65ef1a512252be084ef6d
parent2417cbd5916d043e0c56408221fbe9935d0bc8da (diff)
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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 <danielhb413@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20220507054826.124936-1-pbonzini@redhat.com> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
-rw-r--r--hw/ppc/spapr.c12
-rw-r--r--include/hw/ppc/spapr.h2
2 files changed, 9 insertions, 5 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 6de8005..d112b85 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 14b01c3..072dda2 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) */