coreboot-gerrit November 2020

coreboot-gerrit@coreboot.org

1 participants
2823 discussions

Change in coreboot[master]: util/docker: Add sdcc to our build nodes
by Patrick Georgi (Code Review) 01 Nov '20

01 Nov '20

Patrick Georgi has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/46940 ) Change subject: util/docker: Add sdcc to our build nodes ...................................................................... util/docker: Add sdcc to our build nodes core-ec will need it. Change-Id: Id7d677a6f92ce266f893372a2540d77abb613707 Signed-off-by: Patrick Georgi <pgeorgi(a)google.com> --- M util/docker/coreboot-jenkins-node/Dockerfile 1 file changed, 1 insertion(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/40/46940/1 diff --git a/util/docker/coreboot-jenkins-node/Dockerfile b/util/docker/coreboot-jenkins-node/Dockerfile index 36b77d6..9449c05 100644 --- a/util/docker/coreboot-jenkins-node/Dockerfile +++ b/util/docker/coreboot-jenkins-node/Dockerfile @@ -20,6 +20,7 @@ RUN apt-get -y update && \ apt-get -y install \ meson ninja-build \ + sdcc \ lua5.3 liblua5.3-dev default-jre-headless openssh-server && \ apt-get clean -- To view, visit https://review.coreboot.org/c/coreboot/+/46940 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Id7d677a6f92ce266f893372a2540d77abb613707 Gerrit-Change-Number: 46940 Gerrit-PatchSet: 1 Gerrit-Owner: Patrick Georgi <pgeorgi(a)google.com> Gerrit-MessageType: newchange

4 4

Change in coreboot[master]: cpu/x86/smm: Add save state ops for different save states.
by Arthur Heymans (Code Review) 01 Nov '20

01 Nov '20

Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/45472 ) Change subject: cpu/x86/smm: Add save state ops for different save states. ...................................................................... cpu/x86/smm: Add save state ops for different save states. Change-Id: I67ab44fbdca5fac5837d32ffda5caad61e534473 Signed-off-by: Arthur Heymans <arthur(a)aheymans.xyz> --- A src/cpu/amd/smm/amd64_save_state.c A src/cpu/intel/smm/em64t100_save_state.c A src/cpu/intel/smm/em64t101_save_state.c M src/cpu/x86/Kconfig M src/cpu/x86/smm/Makefile.inc A src/cpu/x86/smm/legacy_save_state.c 6 files changed, 476 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/72/45472/1 diff --git a/src/cpu/amd/smm/amd64_save_state.c b/src/cpu/amd/smm/amd64_save_state.c new file mode 100644 index 0000000..6aabb56 --- /dev/null +++ b/src/cpu/amd/smm/amd64_save_state.c @@ -0,0 +1,120 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <string.h> +#include <cpu/x86/save_state.h> +#include <cpu/amd/amd64_save_state.h> + +static void *amd64_get_reg_base(const enum cpu_reg reg, const int node) +{ + const amd64_smm_state_save_area_t *save_state = + (const amd64_smm_state_save_area_t *)smm_get_save_state(node); + + switch (reg) { + case RAX: + return (void *)&save_state->rax; + case RBX: + return (void *)&save_state->rbx; + case RCX: + return (void *)&save_state->rcx; + case RDX: + return (void *)&save_state->rdx; + } + + return NULL; +} + +enum get_set { + GET, + SET +}; + +static int amd64_get_set(const enum get_set op_type, const enum cpu_reg reg, + const int node, void *in_out, const uint8_t length) +{ + + void *reg_base = amd64_get_reg_base(reg, node); + + if (!reg_base) + return -1; + + switch (length) { + case 1: + case 2: + case 4: + case 8: + switch (op_type) { + case GET: + memcpy(in_out, reg_base, length); + return 0; + case SET: + memcpy(reg_base, in_out, length); + } + } + + return -1; +} + +static int amd64_get_reg(const enum cpu_reg reg, const int node, void *out, const uint8_t length) +{ + return amd64_get_set(GET, reg, node, out, length); +} + +static int amd64_set_reg(const enum cpu_reg reg, const int node, void *in, const uint8_t length) +{ + return amd64_get_set(SET, reg, node, in, length); +} + +/* bits in smm_io_trap */ +#define SMM_IO_TRAP_PORT_OFFSET 16 +#define SMM_IO_TRAP_PORT_ADDRESS_MASK 0xffff +#define SMM_IO_TRAP_RW (1 << 0) +#define SMM_IO_TRAP_VALID (1 << 1) + +static inline u16 get_io_address(u32 info) +{ + return ((info >> SMM_IO_TRAP_PORT_OFFSET) & + SMM_IO_TRAP_PORT_ADDRESS_MASK); +} + +static int amd64_apmc_node(u8 cmd) +{ + amd64_smm_state_save_area_t *state; + u32 smm_io_trap; + int node; + + for (node = 0; node < CONFIG_MAX_CPUS; node++) { + state = smm_get_save_state(node); + smm_io_trap = state->smm_io_trap_offset; + + /* Check for Valid IO Trap Word (bit1==1) */ + if (!(smm_io_trap & SMM_IO_TRAP_VALID)) + continue; + /* Make sure it was a write (bit0==0) */ + if (smm_io_trap & SMM_IO_TRAP_RW) + continue; + /* Check for APMC IO port */ + if (pm_acpi_smi_cmd_port() != get_io_address(smm_io_trap)) + continue; + /* Check AL against the requested command */ + reg_al = state->rax; + if (reg_al == cmd) + return node; + } + + return -1; +} + +static const uint32_t revisions[] = { + 0x00020064, + 0x00030064, + SMM_REV_INVALID, +}; + +static const struct smm_save_state_ops ops = { + .revision_table = revisions, + .get_reg = amd64_get_reg, + .set_reg = amd64_set_reg, + .apmc_node = amd64_apmc_node, +}; + +const struct smm_save_state_ops *amd64_ops = &ops; diff --git a/src/cpu/intel/smm/em64t100_save_state.c b/src/cpu/intel/smm/em64t100_save_state.c new file mode 100644 index 0000000..c654fd9 --- /dev/null +++ b/src/cpu/intel/smm/em64t100_save_state.c @@ -0,0 +1,109 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <string.h> +#include <cpu/x86/save_state.h> +#include <cpu/intel/em64t100_save_state.h> + +static void *em64t100_get_reg_base(const enum cpu_reg reg, const int node) +{ + const em64t100_smm_state_save_area_t *save_state = + (const em64t100_smm_state_save_area_t *)smm_get_save_state(node); + + switch (reg) { + case RAX: + return (void *)&save_state->rax; + case RBX: + return (void *)&save_state->rbx; + case RCX: + return (void *)&save_state->rcx; + case RDX: + return (void *)&save_state->rdx; + } + + return NULL; +} + +enum get_set { + GET, + SET +}; + +static int em64t100_get_set(const enum get_set op_type, const enum cpu_reg reg, + const int node, void *in_out, const uint8_t length) +{ + + void *reg_base = em64t100_get_reg_base(reg, node); + + if (!reg_base) + return -1; + + switch (length) { + case 1: + case 2: + case 4: + case 8: + switch (op_type) { + case GET: + memcpy(in_out, reg_base, length); + return 0; + case SET: + memcpy(reg_base, in_out, length); + } + } + + return -1; +} + +static int em64t100_get_reg(const enum cpu_reg reg, const int node, void *out, const uint8_t length) +{ + return em64t100_get_set(GET, reg, node, out, length); +} + +static int em64t100_set_reg(const enum cpu_reg reg, const int node, void *in, const uint8_t length) +{ + return em64t100_get_set(SET, reg, node, in, length); +} + +static int em64t100_apmc_node(u8 cmd) +{ + em64t100_smm_state_save_area_t *state; + int node; + + for (node = 0; node < CONFIG_MAX_CPUS; node++) { + state = smm_get_save_state(node); + + /* Check for Synchronous IO (bit0 == 1) */ + if (!(state->io_misc_info & (1 << 0))) + continue; + + /* Make sure it was a write (bit4 == 0) */ + if (state->io_misc_info & (1 << 4)) + continue; + + /* Check for APMC IO port */ + if (((state->io_misc_info >> 16) & 0xff) != APM_CNT) + continue; + + /* Check AX against the requested command */ + if ((state->rax & 0xff) != cmd) + continue; + + return node; + } + + return -1; +} + +static const uint32_t revisions[] = { + 0x00030100, + SMM_REV_INVALID, +}; + +static const struct smm_save_state_ops ops = { + .revision_table = revisions, + .get_reg = em64t100_get_reg, + .set_reg = em64t100_set_reg, + .apmc_node = em64t100_apmc_node, +}; + +const struct smm_save_state_ops *em64t100_ops = &ops; diff --git a/src/cpu/intel/smm/em64t101_save_state.c b/src/cpu/intel/smm/em64t101_save_state.c new file mode 100644 index 0000000..2d1f9bc --- /dev/null +++ b/src/cpu/intel/smm/em64t101_save_state.c @@ -0,0 +1,108 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <string.h> +#include <cpu/x86/save_state.h> +#include <cpu/intel/em64t101_save_state.h> + +static void *em64t101_get_reg_base(const enum cpu_reg reg, const int node) +{ + const em64t101_smm_state_save_area_t *save_state = (const em64t101_smm_state_save_area_t *)smm_get_save_state(node); + + switch (reg) { + case RAX: + return (void *)&save_state->rax; + case RBX: + return (void *)&save_state->rbx; + case RCX: + return (void *)&save_state->rcx; + case RDX: + return (void *)&save_state->rdx; + } + + return NULL; +} + +enum get_set { + GET, + SET +}; + +static int em64t101_get_set(const enum get_set op_type, const enum cpu_reg reg, + const int node, void *in_out, const uint8_t length) +{ + + void *reg_base = em64t101_get_reg_base(reg, node); + + if (!reg_base) + return -1; + + switch (length) { + case 1: + case 2: + case 4: + case 8: + switch (op_type) { + case GET: + memcpy(in_out, reg_base, length); + return 0; + case SET: + memcpy(reg_base, in_out, length); + } + } + + return -1; +} + +static int em64t101_get_reg(const enum cpu_reg reg, const int node, void *out, const uint8_t length) +{ + return em64t101_get_set(GET, reg, node, out, length); +} + +static int em64t101_set_reg(const enum cpu_reg reg, const int node, void *in, const uint8_t length) +{ + return em64t101_get_set(SET, reg, node, in, length); +} + +static int em64t101_apmc_node(u8 cmd) +{ + em64t101_smm_state_save_area_t *state; + int node; + + for (node = 0; node < CONFIG_MAX_CPUS; node++) { + state = smm_get_save_state(node); + + /* Check for Synchronous IO (bit0 == 1) */ + if (!(state->io_misc_info & (1 << 0))) + continue; + + /* Make sure it was a write (bit4 == 0) */ + if (state->io_misc_info & (1 << 4)) + continue; + + /* Check for APMC IO port */ + if (((state->io_misc_info >> 16) & 0xff) != APM_CNT) + continue; + + /* Check AX against the requested command */ + if ((state->rax & 0xff) != cmd) + continue; + + return node; + } + + return -1; +} + +static const uint32_t revisions[] = { + 0x00030101, + SMM_REV_INVALID, +}; + +static const struct smm_save_state_ops ops = { + .revision_table = revisions, + .get_reg = em64t101_get_reg, + .set_reg = em64t101_set_reg, + .apmc_node = em64t101_apmc_node, +}; + +const struct smm_save_state_ops *em64t101_ops = &ops; diff --git a/src/cpu/x86/Kconfig b/src/cpu/x86/Kconfig index 5394cd0..ad6f7b7 100644 --- a/src/cpu/x86/Kconfig +++ b/src/cpu/x86/Kconfig @@ -96,6 +96,32 @@ default y depends on !(NO_SMM || SMM_ASEG) +config X86_LEGACY_SAVE_STATE + bool + help + Select this on platforms that have CPUs with a legacy SMM save + state area. + +config X86_EM64T100_SAVE_STATE + bool + help + Select this on platforms that have CPUs with a SMM save + state area revision 0x00030100. These are mostly small + core (atom) Intel targets. + +config X86_EM64T101_SAVE_STATE + bool + help + Select this on platforms that have CPUs with a SMM save + state area revision 0x00030101. These are mostly big + core (core i) Intel targets. + +config X86_AMD64_SAVE_STATE + bool + help + Select this on platforms that have CPUs with a AMD64 save + state area. + if SMM_TSEG config SMM_MODULE_HEAP_SIZE diff --git a/src/cpu/x86/smm/Makefile.inc b/src/cpu/x86/smm/Makefile.inc index e0ee5c0..cb62023 100644 --- a/src/cpu/x86/smm/Makefile.inc +++ b/src/cpu/x86/smm/Makefile.inc @@ -29,6 +29,10 @@ endif smm-y += save_state.c +smm-$(CONFIG_X86_LEGACY_SAVE_STATE) += legacy_save_state.c +smm-$(CONFIG_X86_EM64T100_SAVE_STATE) += ../../intel/smm/em64t100_save_state.c +smm-$(CONFIG_X86_EM64T101_SAVE_STATE) += ../../intel/smm/em64t101_save_state.c +smm-$(CONFIG_X86_AMD64_SAVE_STATE) += ../../amd/smm/amd64_save_state.c ifeq ($(CONFIG_SMM_TSEG),y) diff --git a/src/cpu/x86/smm/legacy_save_state.c b/src/cpu/x86/smm/legacy_save_state.c new file mode 100644 index 0000000..59fa99f --- /dev/null +++ b/src/cpu/x86/smm/legacy_save_state.c @@ -0,0 +1,109 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <string.h> +#include <cpu/x86/save_state.h> +#include <cpu/x86/legacy_save_state.h> + +static void *legacy_get_reg_base(const enum cpu_reg reg, const int node) +{ + const legacy_smm_state_save_area_t *save_state = + (const legacy_smm_state_save_area_t *)smm_get_save_state(node); + + switch (reg) { + case RAX: + return (void *)&save_state->eax; + case RBX: + return (void *)&save_state->ebx; + case RCX: + return (void *)&save_state->ecx; + case RDX: + return (void *)&save_state->edx; + } + + return NULL; +} + +enum get_set { + GET, + SET +}; + +static int legacy_get_set(const enum get_set op_type, const enum cpu_reg reg, + const int node, void *in_out, const uint8_t length) +{ + + void *reg_base = legacy_get_reg_base(reg, node); + + if (!reg_base) + return -1; + + switch (length) { + case 1: + case 2: + case 4: + switch (op_type) { + case GET: + memcpy(in_out, reg_base, length); + return 0; + case SET: + memcpy(reg_base, in_out, length); + } + } + + return -1; +} + +static int legacy_get_reg(const enum cpu_reg reg, const int node, void *out, const uint8_t length) +{ + return legacy_get_set(GET, reg, node, out, length); +} + +static int legacy_set_reg(const enum cpu_reg reg, const int node, void *in, const uint8_t length) +{ + return legacy_get_set(SET, reg, node, in, length); +} + +static int legacy_apmc_node(u8 cmd) +{ + legacy_smm_state_save_area_t *state; + int node; + + for (node = 0; node < CONFIG_MAX_CPUS; node++) { + state = smm_get_save_state(node); + + /* Check for Synchronous IO (bit0 == 1) */ + if (!(state->io_misc_info & (1 << 0))) + continue; + + /* Make sure it was a write (bit4 == 0) */ + if (state->io_misc_info & (1 << 4)) + continue; + + /* Check for APMC IO port */ + if (((state->io_misc_info >> 16) & 0xff) != APM_CNT) + continue; + + /* Check AX against the requested command */ + if ((state->rax & 0xff) != cmd) + continue; + + return node; + } + + return -1; +} + +static const uint32_t revisions[] = { + 0x00030002, + 0x00030007, + SMM_REV_INVALID, +}; + +static const struct smm_save_state_ops ops = { + .revision_table = revisions, + .get_reg = legacy_get_reg, + .set_reg = legacy_set_reg, + .apmc_node = legacy_apmc_node, +}; + +const struct smm_save_state_ops *legacy_ops = &ops; -- To view, visit https://review.coreboot.org/c/coreboot/+/45472 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I67ab44fbdca5fac5837d32ffda5caad61e534473 Gerrit-Change-Number: 45472 Gerrit-PatchSet: 1 Gerrit-Owner: Arthur Heymans <arthur(a)aheymans.xyz> Gerrit-Reviewer: Martin Roth <martinroth(a)google.com> Gerrit-Reviewer: Patrick Georgi <pgeorgi(a)google.com> Gerrit-Reviewer: Patrick Rudolph <siro(a)das-labor.org> Gerrit-MessageType: newchange

3 14

Change in coreboot[master]: HACK trogdor: optimize coreboot.rom for T32 flash script HACK
by Martin Roth (Code Review) 01 Nov '20

01 Nov '20

Martin Roth has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/36278 ) Change subject: HACK trogdor: optimize coreboot.rom for T32 flash script HACK ...................................................................... Patch Set 103: Code-Review-1 As patrick mentioned, you can't put binaries in the coreboot tree. -- To view, visit https://review.coreboot.org/c/coreboot/+/36278 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I5293ac9365bf4ac74bc475e70a02062f5371f9b8 Gerrit-Change-Number: 36278 Gerrit-PatchSet: 103 Gerrit-Owner: mturney mturney <mturney(a)codeaurora.org> Gerrit-Reviewer: Aaron Durbin <adurbin(a)chromium.org> Gerrit-Reviewer: Martin Roth <martinroth(a)google.com> Gerrit-Reviewer: Patrick Georgi <pgeorgi(a)google.com> Gerrit-Reviewer: Ravi kumar <rbokka(a)codeaurora.org> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Reviewer: mturney mturney <mturney(a)codeaurora.org> Gerrit-CC: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Comment-Date: Sun, 01 Nov 2020 20:27:29 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes Gerrit-MessageType: comment

1 0

Change in coreboot[master]: soc/intel/basecode: Add support for updating ucode loaded via FIT
by Jamie Ryu (Code Review) 01 Nov '20

01 Nov '20

Jamie Ryu has uploaded a new patch set (#60) to the change originally created by Rizwan Qureshi. ( https://review.coreboot.org/c/coreboot/+/27369 ) Change subject: soc/intel/basecode: Add support for updating ucode loaded via FIT ...................................................................... soc/intel/basecode: Add support for updating ucode loaded via FIT Intel’s FIT (Firmware Interface Table) based MCU (microcode/pcode patch) loading mechanism patches the microcode before CPU reset. In the current Chromebooks, field updatable FW has to be first verified by vboot. Since the MCU is loaded before reset, vboot cannot verify the same and hence we end up restricting FIT based MCU update only from RO. This patch implements a scheme which will allow chromebooks to update MCU in the field. Create 2 bootblocks (use INTEL_ADD_TOP_SWAP_BOOTBLOCK) each containing their own FIT table. First bootblock FIT has pointers to MCUs (in microcode_blob.bin) which resides in RO section. This will be used in the recovery scenario and also when booting with top-swap disabled i.e, RTC reset. Second bootblock (Normal mode) is identical to the first one except the FIT. Insert an additional pointer to a MCU that will reside in a staging area. Use the CONFIG_INTEL_TOP_SWAP_FIT_ENTRY_FMAP_REG config to insert the address of the staging area into FIT. Top swap control bit in RTC BUC register (0x3414) is used to switch between the two bootblocks. Reserve a region in the FMAP which is equal to or greater than the MCU size specified in the BWG for a particular SoC (e.g., for Skylake/Kaby Lake it is 192K). This is a RW region just like the RW_MRC_CACHE. MCU from RW-A/RW-B will be copied to this region during boot. Protect this staging area with a FPR. Basic update flow: In non-recovery mode, Once a slot has been selected and loaded, check if the current slot MCU and RW staging MCU are same. If not, update the staging area with the MCU found in the current slot and reset the system. Also, make sure that the top-swap is enabled in normal/developer mode and disabled in recovery mode. In order to enable the update feature: * The mainboard chromeos.fmd should include a new region for staging MCU e.g, RW_UCODE_STAGED. * Select config INTEL_TOP_SWAP_MULTI_FIT_UCODE_UPDATE. * Implement a call to check_and_update_ucode() and handle the failure appropriately. Add documentation to describing the MCU update procedure. Update config name and Makefile.inc TODO: Since this update mechanism is dealing mostly with a single MCU it is best suited for systems where the CPU is soldered down and not replaceable (socketed). Extend the update mechanism to systems where the CPU is replaceable, by including multiple MCU for different CPUs. TEST=Create an FW image for soraka and flash, create a chromeos-firmwareupdate shellball with a newer MCU and perform an update. Make sure that the currently loaded microcode version matches the one in firmwareupdate. Change-Id: Iab6ba36a2eb587f331fe522c778e2c430c8eb655 Signed-off-by: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Signed-off-by: dhaval v sharma <dhaval.v.sharma(a)intel.com> Signed-off-by: Pandya, Varshit B <varshit.b.pandya(a)intel.com> --- M Documentation/soc/intel/index.md A Documentation/soc/intel/ucode_update/flash_layout.svg A Documentation/soc/intel/ucode_update/microcode_update_model.md M Makefile.inc A src/soc/intel/common/basecode/fw_update/Kconfig A src/soc/intel/common/basecode/fw_update/Makefile.inc A src/soc/intel/common/basecode/fw_update/ucode_update.c A src/soc/intel/common/basecode/include/intelbasecode/ucode_update.h 8 files changed, 696 insertions(+), 2 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/69/27369/60 -- To view, visit https://review.coreboot.org/c/coreboot/+/27369 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Iab6ba36a2eb587f331fe522c778e2c430c8eb655 Gerrit-Change-Number: 27369 Gerrit-PatchSet: 60 Gerrit-Owner: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Gerrit-Reviewer: Aaron Durbin <adurbin(a)chromium.org> Gerrit-Reviewer: Duncan Laurie <dlaurie(a)chromium.org> Gerrit-Reviewer: Furquan Shaikh <furquan(a)google.com> Gerrit-Reviewer: Jamie Ryu <jamie.m.ryu(a)intel.com> Gerrit-Reviewer: Jamie Ryu <jamie.m.ryu(a)intel.corp-partner.google.com> Gerrit-Reviewer: Martin Roth <martinroth(a)google.com> Gerrit-Reviewer: Patrick Georgi <pgeorgi(a)google.com> Gerrit-Reviewer: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-Reviewer: Patrick Rudolph <siro(a)das-labor.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Gerrit-Reviewer: Sridhar Siricilla <sridhar.siricilla(a)intel.com> Gerrit-Reviewer: Subrata Banik <subrata.banik(a)intel.com> Gerrit-Reviewer: Sugnan Prabhu S <sugnan.prabhu.s(a)intel.com> Gerrit-Reviewer: Varshit B Pandya <varshit.b.pandya(a)intel.com> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Reviewer: dhaval v sharma <dhaval.v.sharma(a)intel.com> Gerrit-CC: Arthur Heymans <arthur(a)aheymans.xyz> Gerrit-CC: Dhaval Sharma <dhaval.v.sharma(a)intel.corp-partner.google.com> Gerrit-CC: Nico Huber <nico.h(a)gmx.de> Gerrit-CC: Tim Wawrzynczak <twawrzynczak(a)chromium.org> Gerrit-CC: rushikesh s kadam <rushikesh.s.kadam(a)intel.com> Gerrit-MessageType: newpatchset

1 0

Change in coreboot[master]: soc/intel/basecode: Add support for updating ucode loaded via FIT
by Jamie Ryu (Code Review) 01 Nov '20

01 Nov '20

Jamie Ryu has uploaded a new patch set (#59) to the change originally created by Rizwan Qureshi. ( https://review.coreboot.org/c/coreboot/+/27369 ) Change subject: soc/intel/basecode: Add support for updating ucode loaded via FIT ...................................................................... soc/intel/basecode: Add support for updating ucode loaded via FIT Intel’s FIT (Firmware Interface Table) based MCU (microcode/pcode patch) loading mechanism patches the microcode before CPU reset. In the current Chromebooks, field updatable FW has to be first verified by vboot. Since the MCU is loaded before reset, vboot cannot verify the same and hence we end up restricting FIT based MCU update only from RO. This patch implements a scheme which will allow chromebooks to update MCU in the field. Create 2 bootblocks (use INTEL_ADD_TOP_SWAP_BOOTBLOCK) each containing their own FIT table. First bootblock FIT has pointers to MCUs (in microcode_blob.bin) which resides in RO section. This will be used in the recovery scenario and also when booting with top-swap disabled i.e, RTC reset. Second bootblock (Normal mode) is identical to the first one except the FIT. Insert an additional pointer to a MCU that will reside in a staging area. Use the CONFIG_INTEL_TOP_SWAP_FIT_ENTRY_FMAP_REG config to insert the address of the staging area into FIT. Top swap control bit in RTC BUC register (0x3414) is used to switch between the two bootblocks. Reserve a region in the FMAP which is equal to or greater than the MCU size specified in the BWG for a particular SoC (e.g., for Skylake/Kaby Lake it is 192K). This is a RW region just like the RW_MRC_CACHE. MCU from RW-A/RW-B will be copied to this region during boot. Protect this staging area with a FPR. Basic update flow: In non-recovery mode, Once a slot has been selected and loaded, check if the current slot MCU and RW staging MCU are same. If not, update the staging area with the MCU found in the current slot and reset the system. Also, make sure that the top-swap is enabled in normal/developer mode and disabled in recovery mode. In order to enable the update feature: * The mainboard chromeos.fmd should include a new region for staging MCU e.g, RW_UCODE_STAGED. * Select config INTEL_TOP_SWAP_MULTI_FIT_UCODE_UPDATE. * Implement a call to check_and_update_ucode() and handle the failure appropriately. Add documentation to describing the MCU update procedure. Update config name and Makefile.inc TODO: Since this update mechanism is dealing mostly with a single MCU it is best suited for systems where the CPU is soldered down and not replaceable (socketed). Extend the update mechanism to systems where the CPU is replaceable, by including multiple MCU for different CPUs. TEST=Create an FW image for soraka and flash, create a chromeos-firmwareupdate shellball with a newer MCU and perform an update. Make sure that the currently loaded microcode version matches the one in firmwareupdate. Change-Id: Iab6ba36a2eb587f331fe522c778e2c430c8eb655 Signed-off-by: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Signed-off-by: dhaval v sharma <dhaval.v.sharma(a)intel.com> Signed-off-by: Pandya, Varshit B <varshit.b.pandya(a)intel.com> --- M Documentation/soc/intel/index.md A Documentation/soc/intel/ucode_update/flash_layout.svg A Documentation/soc/intel/ucode_update/microcode_update_model.md M Makefile.inc A src/soc/intel/common/basecode/fw_update/Kconfig A src/soc/intel/common/basecode/fw_update/Makefile.inc A src/soc/intel/common/basecode/fw_update/ucode_update.c A src/soc/intel/common/basecode/include/intelbasecode/ucode_update.h 8 files changed, 697 insertions(+), 2 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/69/27369/59 -- To view, visit https://review.coreboot.org/c/coreboot/+/27369 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Iab6ba36a2eb587f331fe522c778e2c430c8eb655 Gerrit-Change-Number: 27369 Gerrit-PatchSet: 59 Gerrit-Owner: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Gerrit-Reviewer: Aaron Durbin <adurbin(a)chromium.org> Gerrit-Reviewer: Duncan Laurie <dlaurie(a)chromium.org> Gerrit-Reviewer: Furquan Shaikh <furquan(a)google.com> Gerrit-Reviewer: Jamie Ryu <jamie.m.ryu(a)intel.com> Gerrit-Reviewer: Jamie Ryu <jamie.m.ryu(a)intel.corp-partner.google.com> Gerrit-Reviewer: Martin Roth <martinroth(a)google.com> Gerrit-Reviewer: Patrick Georgi <pgeorgi(a)google.com> Gerrit-Reviewer: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-Reviewer: Patrick Rudolph <siro(a)das-labor.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Gerrit-Reviewer: Sridhar Siricilla <sridhar.siricilla(a)intel.com> Gerrit-Reviewer: Subrata Banik <subrata.banik(a)intel.com> Gerrit-Reviewer: Sugnan Prabhu S <sugnan.prabhu.s(a)intel.com> Gerrit-Reviewer: Varshit B Pandya <varshit.b.pandya(a)intel.com> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Reviewer: dhaval v sharma <dhaval.v.sharma(a)intel.com> Gerrit-CC: Arthur Heymans <arthur(a)aheymans.xyz> Gerrit-CC: Dhaval Sharma <dhaval.v.sharma(a)intel.corp-partner.google.com> Gerrit-CC: Nico Huber <nico.h(a)gmx.de> Gerrit-CC: Tim Wawrzynczak <twawrzynczak(a)chromium.org> Gerrit-CC: rushikesh s kadam <rushikesh.s.kadam(a)intel.com> Gerrit-MessageType: newpatchset

1 0

Change in coreboot[master]: soc/intel/basecode: Add support for updating ucode loaded via FIT
by build bot (Jenkins) (Code Review) 01 Nov '20

01 Nov '20

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/27369 ) Change subject: soc/intel/basecode: Add support for updating ucode loaded via FIT ...................................................................... Patch Set 58: (1 comment) https://review.coreboot.org/c/coreboot/+/27369/58/src/soc/intel/common/base… File src/soc/intel/common/basecode/fw_update/ucode_update.c: https://review.coreboot.org/c/coreboot/+/27369/58/src/soc/intel/common/base… PS58, Line 255: BOOT_STATE_INIT_ENTRY(BS_PRE_DEVICE, BS_ON_ENTRY, ucode_fw_sync, NULL); adding a line without newline at end of file -- To view, visit https://review.coreboot.org/c/coreboot/+/27369 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Iab6ba36a2eb587f331fe522c778e2c430c8eb655 Gerrit-Change-Number: 27369 Gerrit-PatchSet: 58 Gerrit-Owner: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Gerrit-Reviewer: Aaron Durbin <adurbin(a)chromium.org> Gerrit-Reviewer: Duncan Laurie <dlaurie(a)chromium.org> Gerrit-Reviewer: Furquan Shaikh <furquan(a)google.com> Gerrit-Reviewer: Jamie Ryu <jamie.m.ryu(a)intel.com> Gerrit-Reviewer: Jamie Ryu <jamie.m.ryu(a)intel.corp-partner.google.com> Gerrit-Reviewer: Martin Roth <martinroth(a)google.com> Gerrit-Reviewer: Patrick Georgi <pgeorgi(a)google.com> Gerrit-Reviewer: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-Reviewer: Patrick Rudolph <siro(a)das-labor.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Gerrit-Reviewer: Sridhar Siricilla <sridhar.siricilla(a)intel.com> Gerrit-Reviewer: Subrata Banik <subrata.banik(a)intel.com> Gerrit-Reviewer: Sugnan Prabhu S <sugnan.prabhu.s(a)intel.com> Gerrit-Reviewer: Varshit B Pandya <varshit.b.pandya(a)intel.com> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Reviewer: dhaval v sharma <dhaval.v.sharma(a)intel.com> Gerrit-CC: Arthur Heymans <arthur(a)aheymans.xyz> Gerrit-CC: Dhaval Sharma <dhaval.v.sharma(a)intel.corp-partner.google.com> Gerrit-CC: Nico Huber <nico.h(a)gmx.de> Gerrit-CC: Tim Wawrzynczak <twawrzynczak(a)chromium.org> Gerrit-CC: rushikesh s kadam <rushikesh.s.kadam(a)intel.com> Gerrit-Comment-Date: Sun, 01 Nov 2020 12:05:29 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Gerrit-MessageType: comment

1 0

Change in coreboot[master]: soc/intel/basecode: Add support for updating ucode loaded via FIT
by Jamie Ryu (Code Review) 01 Nov '20

01 Nov '20

Jamie Ryu has uploaded a new patch set (#58) to the change originally created by Rizwan Qureshi. ( https://review.coreboot.org/c/coreboot/+/27369 ) Change subject: soc/intel/basecode: Add support for updating ucode loaded via FIT ...................................................................... soc/intel/basecode: Add support for updating ucode loaded via FIT Intel’s FIT (Firmware Interface Table) based MCU (microcode/pcode patch) loading mechanism patches the microcode before CPU reset. In the current Chromebooks, field updatable FW has to be first verified by vboot. Since the MCU is loaded before reset, vboot cannot verify the same and hence we end up restricting FIT based MCU update only from RO. This patch implements a scheme which will allow chromebooks to update MCU in the field. Create 2 bootblocks (use INTEL_ADD_TOP_SWAP_BOOTBLOCK) each containing their own FIT table. First bootblock FIT has pointers to MCUs (in microcode_blob.bin) which resides in RO section. This will be used in the recovery scenario and also when booting with top-swap disabled i.e, RTC reset. Second bootblock (Normal mode) is identical to the first one except the FIT. Insert an additional pointer to a MCU that will reside in a staging area. Use the CONFIG_INTEL_TOP_SWAP_FIT_ENTRY_FMAP_REG config to insert the address of the staging area into FIT. Top swap control bit in RTC BUC register (0x3414) is used to switch between the two bootblocks. Reserve a region in the FMAP which is equal to or greater than the MCU size specified in the BWG for a particular SoC (e.g., for Skylake/Kaby Lake it is 192K). This is a RW region just like the RW_MRC_CACHE. MCU from RW-A/RW-B will be copied to this region during boot. Protect this staging area with a FPR. Basic update flow: In non-recovery mode, Once a slot has been selected and loaded, check if the current slot MCU and RW staging MCU are same. If not, update the staging area with the MCU found in the current slot and reset the system. Also, make sure that the top-swap is enabled in normal/developer mode and disabled in recovery mode. In order to enable the update feature: * The mainboard chromeos.fmd should include a new region for staging MCU e.g, RW_UCODE_STAGED. * Select config INTEL_TOP_SWAP_MULTI_FIT_UCODE_UPDATE. * Implement a call to check_and_update_ucode() and handle the failure appropriately. Add documentation to describing the MCU update procedure. Update config name and Makefile.inc TODO: Since this update mechanism is dealing mostly with a single MCU it is best suited for systems where the CPU is soldered down and not replaceable (socketed). Extend the update mechanism to systems where the CPU is replaceable, by including multiple MCU for different CPUs. TEST=Create an FW image for soraka and flash, create a chromeos-firmwareupdate shellball with a newer MCU and perform an update. Make sure that the currently loaded microcode version matches the one in firmwareupdate. Change-Id: Iab6ba36a2eb587f331fe522c778e2c430c8eb655 Signed-off-by: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Signed-off-by: dhaval v sharma <dhaval.v.sharma(a)intel.com> Signed-off-by: Pandya, Varshit B <varshit.b.pandya(a)intel.com> --- M Documentation/soc/intel/index.md A Documentation/soc/intel/ucode_update/flash_layout.svg A Documentation/soc/intel/ucode_update/microcode_update_model.md M Makefile.inc A src/soc/intel/common/basecode/fw_update/Kconfig A src/soc/intel/common/basecode/fw_update/Makefile.inc A src/soc/intel/common/basecode/fw_update/ucode_update.c A src/soc/intel/common/basecode/include/intelbasecode/ucode_update.h 8 files changed, 696 insertions(+), 2 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/69/27369/58 -- To view, visit https://review.coreboot.org/c/coreboot/+/27369 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Iab6ba36a2eb587f331fe522c778e2c430c8eb655 Gerrit-Change-Number: 27369 Gerrit-PatchSet: 58 Gerrit-Owner: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Gerrit-Reviewer: Aaron Durbin <adurbin(a)chromium.org> Gerrit-Reviewer: Duncan Laurie <dlaurie(a)chromium.org> Gerrit-Reviewer: Furquan Shaikh <furquan(a)google.com> Gerrit-Reviewer: Jamie Ryu <jamie.m.ryu(a)intel.com> Gerrit-Reviewer: Jamie Ryu <jamie.m.ryu(a)intel.corp-partner.google.com> Gerrit-Reviewer: Martin Roth <martinroth(a)google.com> Gerrit-Reviewer: Patrick Georgi <pgeorgi(a)google.com> Gerrit-Reviewer: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-Reviewer: Patrick Rudolph <siro(a)das-labor.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Gerrit-Reviewer: Sridhar Siricilla <sridhar.siricilla(a)intel.com> Gerrit-Reviewer: Subrata Banik <subrata.banik(a)intel.com> Gerrit-Reviewer: Sugnan Prabhu S <sugnan.prabhu.s(a)intel.com> Gerrit-Reviewer: Varshit B Pandya <varshit.b.pandya(a)intel.com> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Reviewer: dhaval v sharma <dhaval.v.sharma(a)intel.com> Gerrit-CC: Arthur Heymans <arthur(a)aheymans.xyz> Gerrit-CC: Dhaval Sharma <dhaval.v.sharma(a)intel.corp-partner.google.com> Gerrit-CC: Nico Huber <nico.h(a)gmx.de> Gerrit-CC: Tim Wawrzynczak <twawrzynczak(a)chromium.org> Gerrit-CC: rushikesh s kadam <rushikesh.s.kadam(a)intel.com> Gerrit-MessageType: newpatchset

1 0

Change in coreboot[master]: libpayload/x86: Try to discover invariant TSC rate
by Angel Pons (Code Review) 01 Nov '20

01 Nov '20

Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/34170 ) Change subject: libpayload/x86: Try to discover invariant TSC rate ...................................................................... Patch Set 7: (1 comment) https://review.coreboot.org/c/coreboot/+/34170/6/payloads/libpayload/arch/x… File payloads/libpayload/arch/x86/timer.c: https://review.coreboot.org/c/coreboot/+/34170/6/payloads/libpayload/arch/x… PS6, Line 144: BROADWELL_U > buildbot complains here Rebasing should fix this. -- To view, visit https://review.coreboot.org/c/coreboot/+/34170 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Ic6607ee2a8b41c2be9dc1bb4f1e23e652bb33889 Gerrit-Change-Number: 34170 Gerrit-PatchSet: 7 Gerrit-Owner: Nico Huber <nico.h(a)gmx.de> Gerrit-Reviewer: Felix Singer <felixsinger(a)posteo.net> Gerrit-Reviewer: Aaron Durbin <adurbin(a)chromium.org> Gerrit-Reviewer: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Arthur Heymans <arthur(a)aheymans.xyz> Gerrit-Reviewer: Julius Werner <jwerner(a)chromium.org> Gerrit-Reviewer: Michael Niewöhner <foss(a)mniewoehner.de> Gerrit-Reviewer: Thomas Heijligen <src(a)posteo.de> Gerrit-Reviewer: Tim Wawrzynczak <twawrzynczak(a)chromium.org> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-CC: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Comment-Date: Sun, 01 Nov 2020 12:01:51 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Comment-In-Reply-To: Michael Niewöhner <foss(a)mniewoehner.de> Gerrit-MessageType: comment

1 0

Change in coreboot[master]: soc/intel/basecode: Add support for updating ucode loaded via FIT
by build bot (Jenkins) (Code Review) 01 Nov '20

01 Nov '20

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/27369 ) Change subject: soc/intel/basecode: Add support for updating ucode loaded via FIT ...................................................................... Patch Set 57: (5 comments) https://review.coreboot.org/c/coreboot/+/27369/57/src/soc/intel/common/base… File src/soc/intel/common/basecode/fw_update/ucode_update.c: https://review.coreboot.org/c/coreboot/+/27369/57/src/soc/intel/common/base… PS57, Line 255: BOOT_STATE_INIT_ENTRY(BS_PRE_DEVICE, BS_ON_ENTRY, ucode_fw_sync, NULL); adding a line without newline at end of file https://review.coreboot.org/c/coreboot/+/27369/57/src/soc/intel/common/base… File src/soc/intel/common/basecode/include/intelbasecode/ucode_update.h: https://review.coreboot.org/c/coreboot/+/27369/57/src/soc/intel/common/base… PS57, Line 7: * This is a weak implementation to reboot after ucode update is finished. trailing whitespace https://review.coreboot.org/c/coreboot/+/27369/57/src/soc/intel/common/base… PS57, Line 14: * enabled. This returns non-zero if recovery mode enabled and can be overridden by trailing whitespace https://review.coreboot.org/c/coreboot/+/27369/57/src/soc/intel/common/base… PS57, Line 20: * This checks if the currently running microcode matches with the one in staging area and trailing whitespace https://review.coreboot.org/c/coreboot/+/27369/57/src/soc/intel/common/base… PS57, Line 21: * the current slot. If they do not match update the staging area with the right version and trailing whitespace -- To view, visit https://review.coreboot.org/c/coreboot/+/27369 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Iab6ba36a2eb587f331fe522c778e2c430c8eb655 Gerrit-Change-Number: 27369 Gerrit-PatchSet: 57 Gerrit-Owner: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Gerrit-Reviewer: Aaron Durbin <adurbin(a)chromium.org> Gerrit-Reviewer: Duncan Laurie <dlaurie(a)chromium.org> Gerrit-Reviewer: Furquan Shaikh <furquan(a)google.com> Gerrit-Reviewer: Jamie Ryu <jamie.m.ryu(a)intel.com> Gerrit-Reviewer: Jamie Ryu <jamie.m.ryu(a)intel.corp-partner.google.com> Gerrit-Reviewer: Martin Roth <martinroth(a)google.com> Gerrit-Reviewer: Patrick Georgi <pgeorgi(a)google.com> Gerrit-Reviewer: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-Reviewer: Patrick Rudolph <siro(a)das-labor.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Gerrit-Reviewer: Sridhar Siricilla <sridhar.siricilla(a)intel.com> Gerrit-Reviewer: Subrata Banik <subrata.banik(a)intel.com> Gerrit-Reviewer: Sugnan Prabhu S <sugnan.prabhu.s(a)intel.com> Gerrit-Reviewer: Varshit B Pandya <varshit.b.pandya(a)intel.com> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Reviewer: dhaval v sharma <dhaval.v.sharma(a)intel.com> Gerrit-CC: Arthur Heymans <arthur(a)aheymans.xyz> Gerrit-CC: Dhaval Sharma <dhaval.v.sharma(a)intel.corp-partner.google.com> Gerrit-CC: Nico Huber <nico.h(a)gmx.de> Gerrit-CC: Tim Wawrzynczak <twawrzynczak(a)chromium.org> Gerrit-CC: rushikesh s kadam <rushikesh.s.kadam(a)intel.com> Gerrit-Comment-Date: Sun, 01 Nov 2020 11:56:06 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Gerrit-MessageType: comment

1 0

Change in coreboot[master]: soc/intel/basecode: Add support for updating ucode loaded via FIT
by Jamie Ryu (Code Review) 01 Nov '20

01 Nov '20

Jamie Ryu has uploaded a new patch set (#57) to the change originally created by Rizwan Qureshi. ( https://review.coreboot.org/c/coreboot/+/27369 ) Change subject: soc/intel/basecode: Add support for updating ucode loaded via FIT ...................................................................... soc/intel/basecode: Add support for updating ucode loaded via FIT Intel’s FIT (Firmware Interface Table) based MCU (microcode/pcode patch) loading mechanism patches the microcode before CPU reset. In the current Chromebooks, field updatable FW has to be first verified by vboot. Since the MCU is loaded before reset, vboot cannot verify the same and hence we end up restricting FIT based MCU update only from RO. This patch implements a scheme which will allow chromebooks to update MCU in the field. Create 2 bootblocks (use INTEL_ADD_TOP_SWAP_BOOTBLOCK) each containing their own FIT table. First bootblock FIT has pointers to MCUs (in microcode_blob.bin) which resides in RO section. This will be used in the recovery scenario and also when booting with top-swap disabled i.e, RTC reset. Second bootblock (Normal mode) is identical to the first one except the FIT. Insert an additional pointer to a MCU that will reside in a staging area. Use the CONFIG_INTEL_TOP_SWAP_FIT_ENTRY_FMAP_REG config to insert the address of the staging area into FIT. Top swap control bit in RTC BUC register (0x3414) is used to switch between the two bootblocks. Reserve a region in the FMAP which is equal to or greater than the MCU size specified in the BWG for a particular SoC (e.g., for Skylake/Kaby Lake it is 192K). This is a RW region just like the RW_MRC_CACHE. MCU from RW-A/RW-B will be copied to this region during boot. Protect this staging area with a FPR. Basic update flow: In non-recovery mode, Once a slot has been selected and loaded, check if the current slot MCU and RW staging MCU are same. If not, update the staging area with the MCU found in the current slot and reset the system. Also, make sure that the top-swap is enabled in normal/developer mode and disabled in recovery mode. In order to enable the update feature: * The mainboard chromeos.fmd should include a new region for staging MCU e.g, RW_UCODE_STAGED. * Select config INTEL_TOP_SWAP_MULTI_FIT_UCODE_UPDATE. * Implement a call to check_and_update_ucode() and handle the failure appropriately. Add documentation to describing the MCU update procedure. Update config name and Makefile.inc TODO: Since this update mechanism is dealing mostly with a single MCU it is best suited for systems where the CPU is soldered down and not replaceable (socketed). Extend the update mechanism to systems where the CPU is replaceable, by including multiple MCU for different CPUs. TEST=Create an FW image for soraka and flash, create a chromeos-firmwareupdate shellball with a newer MCU and perform an update. Make sure that the currently loaded microcode version matches the one in firmwareupdate. Change-Id: Iab6ba36a2eb587f331fe522c778e2c430c8eb655 Signed-off-by: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Signed-off-by: dhaval v sharma <dhaval.v.sharma(a)intel.com> Signed-off-by: Pandya, Varshit B <varshit.b.pandya(a)intel.com> --- M Documentation/soc/intel/index.md A Documentation/soc/intel/ucode_update/flash_layout.svg A Documentation/soc/intel/ucode_update/microcode_update_model.md M Makefile.inc A src/soc/intel/common/basecode/fw_update/Kconfig A src/soc/intel/common/basecode/fw_update/Makefile.inc A src/soc/intel/common/basecode/fw_update/ucode_update.c A src/soc/intel/common/basecode/include/intelbasecode/ucode_update.h 8 files changed, 696 insertions(+), 2 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/69/27369/57 -- To view, visit https://review.coreboot.org/c/coreboot/+/27369 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Iab6ba36a2eb587f331fe522c778e2c430c8eb655 Gerrit-Change-Number: 27369 Gerrit-PatchSet: 57 Gerrit-Owner: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Gerrit-Reviewer: Aaron Durbin <adurbin(a)chromium.org> Gerrit-Reviewer: Duncan Laurie <dlaurie(a)chromium.org> Gerrit-Reviewer: Furquan Shaikh <furquan(a)google.com> Gerrit-Reviewer: Jamie Ryu <jamie.m.ryu(a)intel.com> Gerrit-Reviewer: Jamie Ryu <jamie.m.ryu(a)intel.corp-partner.google.com> Gerrit-Reviewer: Martin Roth <martinroth(a)google.com> Gerrit-Reviewer: Patrick Georgi <pgeorgi(a)google.com> Gerrit-Reviewer: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-Reviewer: Patrick Rudolph <siro(a)das-labor.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: Rizwan Qureshi <rizwan.qureshi(a)intel.com> Gerrit-Reviewer: Sridhar Siricilla <sridhar.siricilla(a)intel.com> Gerrit-Reviewer: Subrata Banik <subrata.banik(a)intel.com> Gerrit-Reviewer: Sugnan Prabhu S <sugnan.prabhu.s(a)intel.com> Gerrit-Reviewer: Varshit B Pandya <varshit.b.pandya(a)intel.com> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Reviewer: dhaval v sharma <dhaval.v.sharma(a)intel.com> Gerrit-CC: Arthur Heymans <arthur(a)aheymans.xyz> Gerrit-CC: Dhaval Sharma <dhaval.v.sharma(a)intel.corp-partner.google.com> Gerrit-CC: Nico Huber <nico.h(a)gmx.de> Gerrit-CC: Tim Wawrzynczak <twawrzynczak(a)chromium.org> Gerrit-CC: rushikesh s kadam <rushikesh.s.kadam(a)intel.com> Gerrit-MessageType: newpatchset

1 0

Jump to page:

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

coreboot-gerrit November 2020