From 455953c2b0dc72c3c57f7e1be97dfb1b0655d573 Mon Sep 17 00:00:00 2001 From: Laszlo Ersek Date: Wed, 8 Jul 2015 19:41:18 +0200 Subject: [PATCH 04/23] i386/pc: pc_basic_device_init(): delegate FDC creation request Message-id: <1436384484-21640-2-git-send-email-lersek@redhat.com> Patchwork-id: 66872 O-Subject: [RHEV-7.2 qemu-kvm-rhev PATCH v2 1/7] i386/pc: pc_basic_device_init(): delegate FDC creation request Bugzilla: 1227282 RH-Acked-by: Dr. David Alan Gilbert RH-Acked-by: John Snow RH-Acked-by: Michael S. Tsirkin This patch introduces no observable change, but it allows the callers of pc_basic_device_init(), ie. pc_init1() and pc_q35_init(), to request (or not request) the creation of the FDC explicitly. At the moment both callers pass constant create_fdctrl=true (hence no observable change). Assuming a board passes create_fdctrl=false, "floppy" will be NULL on output, and (beyond the FDC not being created) that NULL will be passed on to pc_cmos_init(). Luckily, pc_cmos_init() already handles that case. Cc: Markus Armbruster Cc: Paolo Bonzini Cc: Gerd Hoffmann Cc: John Snow Cc: "Gabriel L. Somlo" Cc: "Michael S. Tsirkin" Cc: Kevin Wolf Cc: qemu-block@nongnu.org Signed-off-by: Laszlo Ersek Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Reviewed-by: Markus Armbruster (cherry picked from commit fd53c87cf6651b0dfe9f5107cfe77d2f697bd4f6) Signed-off-by: Miroslav Rezanina --- hw/i386/pc.c | 3 ++- hw/i386/pc_piix.c | 2 +- hw/i386/pc_q35.c | 2 +- include/hw/i386/pc.h | 1 + 4 files changed, 5 insertions(+), 3 deletions(-) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index eb310ee..a3a0ac2 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1416,6 +1416,7 @@ static const MemoryRegionOps ioportF0_io_ops = { void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi, ISADevice **rtc_state, + bool create_fdctrl, ISADevice **floppy, bool no_vmport, uint32 hpet_irqs) @@ -1512,7 +1513,7 @@ void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi, for(i = 0; i < MAX_FD; i++) { fd[i] = drive_get(IF_FLOPPY, 0, i); } - *floppy = fdctrl_init_isa(isa_bus, fd); + *floppy = create_fdctrl ? fdctrl_init_isa(isa_bus, fd) : NULL; } void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus) diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index 8ba87bb..16dbf3e 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -242,7 +242,7 @@ static void pc_init1(MachineState *machine, } /* init basic PC hardware */ - pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, + pc_basic_device_init(isa_bus, gsi, &rtc_state, true, &floppy, (pc_machine->vmport != ON_OFF_AUTO_ON), 0x4); pc_nic_init(isa_bus, pci_bus); diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c index 44d5138..e754bf5 100644 --- a/hw/i386/pc_q35.c +++ b/hw/i386/pc_q35.c @@ -250,7 +250,7 @@ static void pc_q35_init(MachineState *machine) } /* init basic PC hardware */ - pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, + pc_basic_device_init(isa_bus, gsi, &rtc_state, true, &floppy, (pc_machine->vmport != ON_OFF_AUTO_ON), 0xff0104); /* connect pm stuff to lpc */ diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 54afc73..ce940ff 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -199,6 +199,7 @@ qemu_irq *pc_allocate_cpu_irq(void); DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus); void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi, ISADevice **rtc_state, + bool create_fdctrl, ISADevice **floppy, bool no_vmport, uint32 hpet_irqs); -- 1.8.3.1