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| author | Corvin Köhne <corvink@FreeBSD.org> | 2021-10-07 13:58:27 +0000 |
|---|---|---|
| committer | Corvin Köhne <corvink@FreeBSD.org> | 2023-02-28 10:04:34 +0000 |
| commit | 6726130d6860fa5a19181e69546976eafb044538 (patch) | |
| tree | 494c6017a48f426cda7597e6033a3ac1d2d47076 | |
| parent | eb8931d77cee0af57578159297f95571a2d723f8 (diff) | |
| download | src-6726130d6860fa5a19181e69546976eafb044538.tar.gz src-6726130d6860fa5a19181e69546976eafb044538.zip | |
bhyve: add helper func to write a dsdt entry
The guest will check the dsdt to detect acpi devices. Therefore, add a
helper function to create such a dsdt entry for an acpi device.
Reviewed by: markj
MFC after: 1 week
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D38329
(cherry picked from commit 682a522d61223920f23a202aa57901f38bdfd8dd)
| -rw-r--r-- | usr.sbin/bhyve/acpi_device.c | 46 | ||||
| -rw-r--r-- | usr.sbin/bhyve/acpi_device.h | 2 |
2 files changed, 48 insertions, 0 deletions
diff --git a/usr.sbin/bhyve/acpi_device.c b/usr.sbin/bhyve/acpi_device.c index 402e32faa93a..10259006c619 100644 --- a/usr.sbin/bhyve/acpi_device.c +++ b/usr.sbin/bhyve/acpi_device.c @@ -10,6 +10,7 @@ #include <machine/vmm.h> +#include <assert.h> #include <err.h> #include <errno.h> #include <vmmapi.h> @@ -135,3 +136,48 @@ acpi_device_add_res_fixed_memory32(struct acpi_device *const dev, return (0); } + +static void +acpi_device_write_dsdt_crs(const struct acpi_device *const dev) +{ + const struct acpi_resource_list_entry *res; + SLIST_FOREACH(res, &dev->crs, chain) { + switch (res->type) { + case ACPI_RESOURCE_TYPE_FIXED_IO: + dsdt_fixed_ioport(res->data.FixedIo.Address, + res->data.FixedIo.AddressLength); + break; + case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: + dsdt_fixed_mem32(res->data.FixedMemory32.Address, + res->data.FixedMemory32.AddressLength); + break; + default: + assert(0); + break; + } + } +} + +void +acpi_device_write_dsdt(const struct acpi_device *const dev) +{ + if (dev == NULL) { + return; + } + + dsdt_line(""); + dsdt_line(" Scope (\\_SB)"); + dsdt_line(" {"); + dsdt_line(" Device (%s)", dev->name); + dsdt_line(" {"); + dsdt_line(" Name (_HID, \"%s\")", dev->hid); + dsdt_line(" Name (_STA, 0x0F)"); + dsdt_line(" Name (_CRS, ResourceTemplate ()"); + dsdt_line(" {"); + dsdt_indent(4); + acpi_device_write_dsdt_crs(dev); + dsdt_unindent(4); + dsdt_line(" })"); + dsdt_line(" }"); + dsdt_line(" }"); +} diff --git a/usr.sbin/bhyve/acpi_device.h b/usr.sbin/bhyve/acpi_device.h index d9618d7e0a43..5fb3ea18e481 100644 --- a/usr.sbin/bhyve/acpi_device.h +++ b/usr.sbin/bhyve/acpi_device.h @@ -34,3 +34,5 @@ int acpi_device_add_res_fixed_ioport(struct acpi_device *const dev, const UINT16 port, UINT8 length); int acpi_device_add_res_fixed_memory32(struct acpi_device *const dev, const UINT8 write_protected, const UINT32 address, const UINT32 length); + +void acpi_device_write_dsdt(const struct acpi_device *const dev); |