[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH v6 05/22] hw/acpi/aml-build: Add aml_interrupt()
From: |
Shannon Zhao |
Subject: |
Re: [Qemu-devel] [PATCH v6 05/22] hw/acpi/aml-build: Add aml_interrupt() term |
Date: |
Mon, 18 May 2015 12:05:49 +0800 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 |
On 2015/5/15 20:14, Igor Mammedov wrote:
> On Thu, 7 May 2015 16:51:31 +0100
> Peter Maydell <address@hidden> wrote:
>
>> > On 7 May 2015 at 10:29, Shannon Zhao <address@hidden> wrote:
>>> > > From: Shannon Zhao <address@hidden>
>>> > >
>>> > > Add aml_interrupt() for describing device interrupt in resource
>>> > > template.
>>> > > These can be used to generating DSDT table for ACPI on ARM.
>> >
>>> > > + /* Interrupt Number */
>>> > > + build_append_byte(var->buf, extract32(irq, 0, 8)); /* bits[7:0] */
>>> > > + build_append_byte(var->buf, extract32(irq, 8, 8)); /* bits[15:8] */
>>> > > + build_append_byte(var->buf, extract32(irq, 16, 8)); /* bits[23:16]
>>> > > */
>>> > > + build_append_byte(var->buf, extract32(irq, 24, 8)); /* bits[31:24]
>>> > > */
>> >
>> > You used this twice in the previous patch and again here. Can
>> > we factor it out so we can
>> > build_append_uint32(var->buf, irq);
> I'd prefer to leave it as it is now, yes it's a bit of code duplication
> but when you compare to spec it's 1:1 match and easy to compare
>
I think we could use build_append_uint32 because this really makes the
code cleaner and it also matches the spec. When comparing to the spec,
uint32 means 4 bytes, so it implies that it includes this byte and next
3 bytes and it also says the 4 bytes are integral.
--
Shannon
- Re: [Qemu-devel] [PATCH v6 04/22] hw/acpi/aml-build: Add aml_memory32_fixed() term, (continued)
- [Qemu-devel] [PATCH v6 08/22] hw/arm/virt-acpi-build: Generate MADT table, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 07/22] hw/arm/virt-acpi-build: Generate FADT table and update ACPI headers, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 02/22] hw/i386/acpi-build: move generic acpi building helpers into dedictated file, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 06/22] hw/arm/virt-acpi-build: Generation of DSDT table for virt devices, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 05/22] hw/acpi/aml-build: Add aml_interrupt() term, Shannon Zhao, 2015/05/07
Re: [Qemu-devel] [PATCH v6 05/22] hw/acpi/aml-build: Add aml_interrupt() term, Igor Mammedov, 2015/05/15
[Qemu-devel] [PATCH v6 03/22] hw/arm/virt-acpi-build: Basic framework for building ACPI tables on ARM, Shannon Zhao, 2015/05/07