[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [RFC 5/9] acpi: add PNP0C02 to PCI0 bus
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [RFC 5/9] acpi: add PNP0C02 to PCI0 bus |
Date: |
Sun, 16 Feb 2014 14:06:18 +0200 |
On Fri, Feb 07, 2014 at 01:51:32PM +0100, Igor Mammedov wrote:
> Signed-off-by: Igor Mammedov <address@hidden>
> ---
> hw/i386/acpi-build.c | 55
> ++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 55 insertions(+), 0 deletions(-)
>
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 1dbe5ce..f0bedbd 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -492,6 +492,55 @@ static inline void acpi_add_table(GArray *table_offsets,
> GArray *table_data)
> g_array_append_val(table_offsets, offset);
> }
>
> +static uint8_t Hex2Digit(char c)
> +{
> + if (c >= 'A') {
> + return c - 'A' + 10;
> + }
> + return c - '0';
> +}
> +
> +static uint32_t encodeEisaId(const char *str)
> +{
> + uint32_t ret;
> + g_assert(strlen(str) == 7);
> + ret = (str[0] - 0x40) << 26 |
> + (str[1] - 0x40) << 21 |
> + (str[2] - 0x40) << 16 |
> + Hex2Digit(str[3]) << 12 |
> + Hex2Digit(str[4]) << 8 |
> + Hex2Digit(str[5]) << 4 |
> + Hex2Digit(str[6]);
> + return bswap32(ret);
> +}
> +
Why the camel case here?
Seems uncalled for ...
> +#define ACPI_SCOPE(ctx, name, ...) {\
> + GArray *name = build_alloc_array(); \
> + build_append_nameseg(name, stringify(name)); \
> + __VA_ARGS__; \
> + build_package(name, ScopeOp, 0); \
> + build_append_array(ctx, name); \
> + build_free_array(name); \
> +}
> +
> +#define ACPI_NAME(ctx, name) { \
> + build_append_byte(ctx, NameOp); \
> + build_append_nameseg(ctx, name); \
> +}
> +
> +#define ACPI_EISAID(ctx, val) { \
> + build_append_value(ctx, encodeEisaId(val), sizeof(uint32_t)); \
> +}
> +
> +#define ACPI_DEVICE(ctx, name, ...) {\
> + GArray *name = build_alloc_array(); \
> + build_append_nameseg(name, stringify(name)); \
> + __VA_ARGS__; \
> + build_extop_package(name, DeviceOp); \
> + build_append_array(ctx, name); \
> + build_free_array(name); \
> +}
> +
> /* FACS */
> static void
> build_facs(GArray *table_data, GArray *linker, PcGuestInfo *guest_info)
> @@ -1032,6 +1081,12 @@ build_ssdt(GArray *table_data, GArray *linker,
> build_pci_bus_state_cleanup(&hotplug_state);
> }
>
> + ACPI_SCOPE(sb_scope, PCI0,
> + ACPI_DEVICE(PCI0, MRES,
> + ACPI_NAME(MRES, "_HID"); ACPI_EISAID(MRES, "PNP0C02");
> + );
> + );
> +
Wow you managed to make C look like ACPI,
including 4-character identifier limitation.
This needs some thought.
> build_package(sb_scope, op, 3);
> build_append_array(table_data, sb_scope);
> build_free_array(sb_scope);
> --
> 1.7.1
- [Qemu-devel] [RFC 0/9] generate dynamic _CRS for motherboard resources, Igor Mammedov, 2014/02/07
- [Qemu-devel] [RFC 1/9] Revert "pc: Q35 DSDT: exclude CPU hotplug IO range from PCI bus resources", Igor Mammedov, 2014/02/07
- [Qemu-devel] [RFC 2/9] Revert "pc: PIIX DSDT: exclude CPU/PCI hotplug & GPE0 IO range from PCI bus resources", Igor Mammedov, 2014/02/07
- [Qemu-devel] [RFC 3/9] Partial revert "pc: ACPI: expose PRST IO range via _CRS", Igor Mammedov, 2014/02/07
- [Qemu-devel] [RFC 4/9] acpi: replace opencoded opcodes with defines, Igor Mammedov, 2014/02/07
- [Qemu-devel] [RFC 5/9] acpi: add PNP0C02 to PCI0 bus, Igor Mammedov, 2014/02/07
- Re: [Qemu-devel] [RFC 5/9] acpi: add PNP0C02 to PCI0 bus,
Michael S. Tsirkin <=
- [Qemu-devel] [RFC 6/9] acpi: consume GPE0 IO resources in PNP0C02 device, Igor Mammedov, 2014/02/07
- [Qemu-devel] [RFC 7/9] acpi: consume CPU hotplug IO resource in PNP0C02 device, Igor Mammedov, 2014/02/07
- [Qemu-devel] [RFC 8/9] pcihp: expose PCI hotplug MMIO base/length as properties of piix4pm, Igor Mammedov, 2014/02/07
- [Qemu-devel] [RFC 9/9] acpi: consume PCIHP IO resource in PNP0C02 device, Igor Mammedov, 2014/02/07
- Re: [Qemu-devel] [RFC 0/9] generate dynamic _CRS for motherboard resources, Michael S. Tsirkin, 2014/02/16