xemu/hw/i386
Philippe Mathieu-Daudé a6f65f4fc2 hw/i386/intel_iommu: Simplify vtd_find_as_from_bus_num() logic
The vtd_find_as_from_bus_num() function was introduced (in commit
dbaabb25f) in a code format that could return an incorrect pointer,
which was later fixed by commit a2e1cd41cc.
We could have avoided this by writing the if() statement differently.
Do it now, in case this function is re-used. The code is easier to
review (harder to miss bugs).

Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200305102702.31512-1-philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-03-08 09:27:09 -04:00
..
kvm qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
xen qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
acpi-build.c tpm: rename TPM_TIS into TPM_TIS_ISA 2020-03-05 12:17:19 -05:00
acpi-build.h Use scripts/clean-includes to drop redundant qemu/typedefs.h 2016-03-22 22:20:16 +01:00
amd_iommu.c hw/i386/amd_iommu: rename Error ** parameter to more common errp 2019-12-18 08:43:19 +01:00
amd_iommu.h Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
e820_memory_layout.c hw/i386/pc: Extract e820 memory layout code 2019-09-16 17:13:07 +02:00
e820_memory_layout.h hw/i386/pc: Extract e820 memory layout code 2019-09-16 17:13:07 +02:00
fw_cfg.c x86: move more x86-generic functions out of PC files 2019-12-17 19:33:50 +01:00
fw_cfg.h x86: move more x86-generic functions out of PC files 2019-12-17 19:33:50 +01:00
intel_iommu_internal.h intel_iommu: add present bit check for pasid table entries 2020-01-06 12:04:51 -05:00
intel_iommu.c hw/i386/intel_iommu: Simplify vtd_find_as_from_bus_num() logic 2020-03-08 09:27:09 -04:00
Kconfig tpm: Separate TPM_TIS and TPM_TIS_ISA configs 2020-03-05 12:18:00 -05:00
kvmvapic.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
Makefile.objs hw/i386/pc: Extract the port92 device 2019-12-17 19:33:51 +01:00
microvm.c x86/microvm: use memdev for RAM 2020-02-19 16:49:58 +00:00
multiboot.c hw/core/loader: Let load_elf() populate a field with CPU-specific flags 2020-01-29 19:28:52 +01:00
multiboot.h refer to FWCfgState explicitly 2013-06-02 18:14:02 +03:00
pc_piix.c hw: Make MachineClass::is_default a boolean type 2020-02-28 14:57:19 -05:00
pc_q35.c hw: fix using 4.2 compat in 5.0 machine types for i440fx/q35 2020-01-07 12:08:39 +01:00
pc_sysfw.c hw/i386/pc: move shared x86 functions to x86.c and export them 2019-10-22 09:38:42 +02:00
pc.c x86/pc: use memdev for RAM 2020-02-19 16:49:58 +00:00
port92.c hw/i386/pc: Extract the port92 device 2019-12-17 19:33:51 +01:00
trace-events hw/i386/pc: Extract the port92 device 2019-12-17 19:33:51 +01:00
vmmouse.c hw/i386/vmmouse: Fix crash when using the vmmouse on a machine without vmport 2020-02-06 11:02:48 +01:00
vmport.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
x86-iommu-stub.c hw/i386/x86-iommu: Add missing stubs 2020-01-09 11:41:25 +00:00
x86-iommu.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
x86.c hw/core/loader: Let load_elf() populate a field with CPU-specific flags 2020-01-29 19:28:52 +01:00