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Pass the ACPI table pointer to the arm64 kernel from loader.efi.

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Sponsored by:	The FreeBSD Foundation
This commit is contained in:
andrew 2015-06-11 14:02:23 +00:00
parent c834aadf0c
commit 9b79279d8a
1 changed files with 39 additions and 1 deletions
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40
sys/boot/efi/loader/arch/arm64/exec.c
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@ -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);