From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40012) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZgJVV-00052K-Eo for qemu-devel@nongnu.org; Sun, 27 Sep 2015 17:29:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZgJVS-0005a0-8l for qemu-devel@nongnu.org; Sun, 27 Sep 2015 17:29:17 -0400 Received: from relay-06.andrew.cmu.edu ([128.2.157.21]:60899 helo=relay.andrew.cmu.edu) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZgJVS-0005ZQ-19 for qemu-devel@nongnu.org; Sun, 27 Sep 2015 17:29:14 -0400 From: "Gabriel L. Somlo" Date: Sun, 27 Sep 2015 17:29:01 -0400 Message-Id: <1443389342-2186-5-git-send-email-somlo@cmu.edu> In-Reply-To: <1443389342-2186-1-git-send-email-somlo@cmu.edu> References: <1443389342-2186-1-git-send-email-somlo@cmu.edu> Subject: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, drjones@redhat.com, matt.fleming@intel.com, ehabkost@redhat.com, mst@redhat.com, zhaoshenglong@huawei.com, leif.lindholm@linaro.org, ard.biesheuvel@linaro.org, kevin@koconnor.net, kraxel@redhat.com, pbonzini@redhat.com, imammedo@redhat.com, markmb@redhat.com, lersek@redhat.com, rth@twiddle.net Add a fw_cfg device node to the ACPI DSDT. This is mostly informational, as the authoritative fw_cfg MMIO region(s) are listed in the Device Tree. However, since we are building ACPI tables, we might as well be thorough while at it... Signed-off-by: Gabriel Somlo --- hw/arm/virt-acpi-build.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 1aaff1f..f314132 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -110,6 +110,20 @@ static void acpi_dsdt_add_rtc(Aml *scope, const MemMapEntry *rtc_memmap, aml_append(scope, dev); } +static void acpi_dsdt_add_fw_cfg(Aml *scope, const MemMapEntry *fw_cfg_memmap) +{ + Aml *dev = aml_device("FWCF"); + aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0002"))); + /* device present, functioning, decoding, not shown in UI */ + aml_append(dev, aml_name_decl("_STA", aml_int(0xB))); + + Aml *crs = aml_resource_template(); + aml_append(crs, aml_memory32_fixed(fw_cfg_memmap->base, + fw_cfg_memmap->size, AML_READ_WRITE)); + aml_append(dev, aml_name_decl("_CRS", crs)); + aml_append(scope, dev); +} + static void acpi_dsdt_add_flash(Aml *scope, const MemMapEntry *flash_memmap) { Aml *dev, *crs; @@ -529,6 +543,7 @@ build_dsdt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info) (irqmap[VIRT_UART] + ARM_SPI_BASE)); acpi_dsdt_add_rtc(scope, &memmap[VIRT_RTC], (irqmap[VIRT_RTC] + ARM_SPI_BASE)); + acpi_dsdt_add_fw_cfg(scope, &memmap[VIRT_FW_CFG]); acpi_dsdt_add_flash(scope, &memmap[VIRT_FLASH]); acpi_dsdt_add_virtio(scope, &memmap[VIRT_MMIO], (irqmap[VIRT_MMIO] + ARM_SPI_BASE), NUM_VIRTIO_TRANSPORTS); -- 2.4.3