svn commit: r284266 - head/sys/boot/efi/loader/arch/arm64
Andrew Turner
andrew at FreeBSD.org
Thu Jun 11 14:02:24 UTC 2015
Author: andrew
Date: Thu Jun 11 14:02:23 2015
New Revision: 284266
URL: https://svnweb.freebsd.org/changeset/base/284266
Log:
Pass the ACPI table pointer to the arm64 kernel from loader.efi.
Sponsored by: The FreeBSD Foundation
Modified:
head/sys/boot/efi/loader/arch/arm64/exec.c
Modified: head/sys/boot/efi/loader/arch/arm64/exec.c
==============================================================================
--- head/sys/boot/efi/loader/arch/arm64/exec.c Thu Jun 11 13:58:40 2015 (r284265)
+++ head/sys/boot/efi/loader/arch/arm64/exec.c Thu Jun 11 14:02:23 2015 (r284266)
@@ -42,6 +42,15 @@ __FBSDID("$FreeBSD$");
#include "loader_efi.h"
#include "cache.h"
+#include "platform/acfreebsd.h"
+#include "acconfig.h"
+#define ACPI_SYSTEM_XFACE
+#include "actypes.h"
+#include "actbl.h"
+
+static EFI_GUID acpi_guid = ACPI_TABLE_GUID;
+static EFI_GUID acpi20_guid = ACPI_20_TABLE_GUID;
+
static int elf64_exec(struct preloaded_file *amp);
static int elf64_obj_exec(struct preloaded_file *amp);
@@ -64,12 +73,41 @@ elf64_exec(struct preloaded_file *fp)
vm_offset_t clean_addr;
size_t clean_size;
struct file_metadata *md;
+ ACPI_TABLE_RSDP *rsdp;
EFI_STATUS status;
EFI_PHYSICAL_ADDRESS addr;
Elf_Ehdr *ehdr;
- int err;
+ char buf[24];
+ int err, revision;
void (*entry)(vm_offset_t);
+ rsdp = efi_get_table(&acpi20_guid);
+ if (rsdp == NULL) {
+ rsdp = efi_get_table(&acpi_guid);
+ }
+ if (rsdp != NULL) {
+ sprintf(buf, "0x%016llx", (unsigned long long)rsdp);
+ setenv("hint.acpi.0.rsdp", buf, 1);
+ revision = rsdp->Revision;
+ if (revision == 0)
+ revision = 1;
+ sprintf(buf, "%d", revision);
+ setenv("hint.acpi.0.revision", buf, 1);
+ strncpy(buf, rsdp->OemId, sizeof(rsdp->OemId));
+ buf[sizeof(rsdp->OemId)] = '\0';
+ setenv("hint.acpi.0.oem", buf, 1);
+ sprintf(buf, "0x%016x", rsdp->RsdtPhysicalAddress);
+ setenv("hint.acpi.0.rsdt", buf, 1);
+ if (revision >= 2) {
+ /* XXX extended checksum? */
+ sprintf(buf, "0x%016llx",
+ (unsigned long long)rsdp->XsdtPhysicalAddress);
+ setenv("hint.acpi.0.xsdt", buf, 1);
+ sprintf(buf, "%d", rsdp->Length);
+ setenv("hint.acpi.0.xsdt_length", buf, 1);
+ }
+ }
+
if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
return(EFTYPE);
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