From 8caff63699a9bd6b82556bd527ff023c443ada2d Mon Sep 17 00:00:00 2001 From: Marcel Apfelbaum Date: Wed, 4 Feb 2015 17:43:48 +0200 Subject: [PATCH] machine: replace qemu opts with iommu property Fixes a QEMU crash when passing iommu parameter in command line. Running x86_64-softmmu/qemu-system-x86_64 -machine pc,iommu=on -enable-kvm leads to crash: qemu-system-x86_64: qemu/util/qemu-option.c:387: qemu_opt_get_bool_helper: Assertion `opt->desc && opt->desc->type == QEMU_OPT_BOOL' failed. Aborted (core dumped) This happens because commit e79d5a6 ("machine: remove qemu_machine_opts global list") removed the global option descriptions and moved them to MachineState's QOM properties. Fix this by querying machine properties through designated wrappers. Signed-off-by: Marcel Apfelbaum Acked-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Reviewed-by: Paolo Bonzini --- hw/core/machine.c | 5 +++++ hw/pci-host/q35.c | 2 +- include/hw/boards.h | 1 + 3 files changed, 7 insertions(+), 1 deletion(-) diff --git a/hw/core/machine.c b/hw/core/machine.c index fbd91be575..096eb1030f 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -403,6 +403,11 @@ bool machine_usb(MachineState *machine) return machine->usb; } +bool machine_iommu(MachineState *machine) +{ + return machine->iommu; +} + static const TypeInfo machine_info = { .name = TYPE_MACHINE, .parent = TYPE_OBJECT, diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c index df60e61d4f..c8827cc000 100644 --- a/hw/pci-host/q35.c +++ b/hw/pci-host/q35.c @@ -415,7 +415,7 @@ static void mch_realize(PCIDevice *d, Error **errp) PAM_EXPAN_BASE + i * PAM_EXPAN_SIZE, PAM_EXPAN_SIZE); } /* Intel IOMMU (VT-d) */ - if (qemu_opt_get_bool(qemu_get_machine_opts(), "iommu", false)) { + if (machine_iommu(current_machine)) { mch_init_dmar(mch); } } diff --git a/include/hw/boards.h b/include/hw/boards.h index 3ddc449bb6..a12f041d86 100644 --- a/include/hw/boards.h +++ b/include/hw/boards.h @@ -66,6 +66,7 @@ MachineClass *find_default_machine(void); extern MachineState *current_machine; bool machine_usb(MachineState *machine); +bool machine_iommu(MachineState *machine); /** * MachineClass: -- 2.11.0