diff options
| -rw-r--r-- | src/vendorcode/google/chromeos/acpi/gnvs.asl | 6 | ||||
| -rw-r--r-- | src/vendorcode/google/chromeos/gnvs.c | 28 | ||||
| -rw-r--r-- | src/vendorcode/google/chromeos/gnvs.h | 6 |
3 files changed, 38 insertions, 2 deletions
diff --git a/src/vendorcode/google/chromeos/acpi/gnvs.asl b/src/vendorcode/google/chromeos/acpi/gnvs.asl index 52d3a0d563..69e848a1aa 100644 --- a/src/vendorcode/google/chromeos/acpi/gnvs.asl +++ b/src/vendorcode/google/chromeos/acpi/gnvs.asl @@ -32,4 +32,8 @@ VBTA, 32, // 0xd9a - pointer to smbios FWID MEHH, 256, // 0xd9e - Management Engine Hash RMOB, 32, // 0xdbe - RAM oops base address RMOL, 32, // 0xdc2 - RAM oops length - // 0xdc6 +ROVP, 32, // 0xdc6 - pointer to RO_VPD +ROVL, 32, // 0xdca - size of RO_VPD +RWVP, 32, // 0xdce - pointer to RW_VPD +RWVL, 32, // 0xdd2 - size of RW_VPD + // 0xdd6 diff --git a/src/vendorcode/google/chromeos/gnvs.c b/src/vendorcode/google/chromeos/gnvs.c index 86ba4f3353..44162c88fc 100644 --- a/src/vendorcode/google/chromeos/gnvs.c +++ b/src/vendorcode/google/chromeos/gnvs.c @@ -20,6 +20,7 @@ #include <cbmem.h> #include <console/console.h> #include <elog.h> +#include <fmap.h> #include <security/vboot/vbnv.h> #include <security/vboot/vboot_common.h> #include <vboot_struct.h> @@ -30,14 +31,41 @@ static chromeos_acpi_t *chromeos_acpi; static u32 me_hash_saved[8]; +static size_t chromeos_vpd_region(const char *region, uintptr_t *base) +{ + struct region_device vpd; + + if (fmap_locate_area_as_rdev(region, &vpd)) + return 0; + + *base = (uintptr_t)rdev_mmap_full(&vpd); + + return region_device_sz(&vpd); +} + void chromeos_init_chromeos_acpi(chromeos_acpi_t *init) { + size_t vpd_size; + uintptr_t vpd_base = 0; + chromeos_acpi = init; /* Copy saved ME hash into NVS */ memcpy(chromeos_acpi->mehh, me_hash_saved, sizeof(chromeos_acpi->mehh)); chromeos_ram_oops_init(chromeos_acpi); + + vpd_size = chromeos_vpd_region("RO_VPD", &vpd_base); + if (vpd_size && vpd_base) { + chromeos_acpi->vpd_ro_base = vpd_base; + chromeos_acpi->vpd_ro_size = vpd_size; + } + + vpd_size = chromeos_vpd_region("RW_VPD", &vpd_base); + if (vpd_size && vpd_base) { + chromeos_acpi->vpd_rw_base = vpd_base; + chromeos_acpi->vpd_rw_size = vpd_size; + } } void chromeos_set_me_hash(u32 *hash, int len) diff --git a/src/vendorcode/google/chromeos/gnvs.h b/src/vendorcode/google/chromeos/gnvs.h index 76ca20c294..b114dd0d68 100644 --- a/src/vendorcode/google/chromeos/gnvs.h +++ b/src/vendorcode/google/chromeos/gnvs.h @@ -70,7 +70,11 @@ typedef struct { u32 mehh[8]; // d9e management engine hash u32 ramoops_base; // dbe ramoops base address u32 ramoops_len; // dc2 ramoops length - u8 pad[314]; // dc6-eff + u32 vpd_ro_base; // dc6 pointer to RO_VPD + u32 vpd_ro_size; // dca size of RO_VPD + u32 vpd_rw_base; // dce pointer to RW_VPD + u32 vpd_rw_size; // dd2 size of RW_VPD + u8 pad[298]; // dd6-eff } __packed chromeos_acpi_t; void chromeos_init_chromeos_acpi(chromeos_acpi_t *init); |