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2018-08-09cpu/x86/mp_init.c: Avoid static analysis error for unused valueRichard Spiegel
Within procedure save_bsp_msrs, the structure pointer "msr_entry" is updated every time procedure save_msr() is called. However, after the last call of save_msr(), "msr_entry" is not used, thus causing a static analysis error. Add a "(void)msr_entry;" at the end to avoid the static analysis error. BUG=b:112253891 TEST=Build and boot grunt. Change-Id: If0fb336fbf49eec3da255fadbe38b3a38768d0cf Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Reviewed-on: https://review.coreboot.org/27956 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2018-08-09src/cpu: Fix typoElyes HAOUAS
Change-Id: I13dec72b2de2a525d45909e697c33fbdc31111cb Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/27918 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2018-08-09cpu/x86/mp_init.c: Fix error treatmentRichard Spiegel
In procedure allocate_cpu_devices(), if structure pointer new is null skip using the pointer. Add a "continue;" to skip using the pointer. The issue was found by static analysis tool. BUG=b:112253891 TEST=Build and boot grunt. Change-Id: I7011fbfa0725f22a6dfbca6752e668eddac3463c Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Reviewed-on: https://review.coreboot.org/27951 Reviewed-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-08-06mp_init: fix typoRaul E Rangel
BUG=none TEST=none Change-Id: Ic2d7bf5f5335894ede98dc7e6cc6a65e4897e487 Signed-off-by: Raul E Rangel <rrangel@chromium.org> Reviewed-on: https://review.coreboot.org/27811 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2018-08-03cpu/x86/lapic/apic_timer.c: Compile the same code for all stagesArthur Heymans
timer_monotonic_get() was only compiled in a !__PRE_RAM__ environment. Clean up the code paths by employing CAR_GLOBAL for the global state which allows the same code to be used in all stages. Change-Id: I08fd1795508f76abdab1618585366bf9d06482ff Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/27801 Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-06-28smm: Add canary to end of stack and die() if a stack overflow occursRaul E Rangel
If CPU 0's stack grows to large, it will overflow into CPU 1's stack. If CPU 0 is handling the interrupt then CPU 1 should be in an idle loop. When the stack overflow occurs it will override the return pointer for CPU 1, so when CPU 0 unlocks the SMI lock, CPU 1 will attempt to return to a random address. This method is not foolproof. If code allocates some stack variables that overlap with the canary, and if the variables are never set, then the canary will not be overwritten, but it will have been skipped. We could mitigate this by adding a larger canary value if we wanted. I chose to use the stack bottom pointer value as the canary value because: * It will change per CPU stack. * Doesn't require hard coding a value that must be shared between the .S and .c. * Passing the expected canary value as a parameter felt like overkill. We can explore adding other methods of signaling that a stack overflow had occurred in a follow up. I limited die() to debug only because otherwise it would be very hard to track down. TEST=built on grunt with a small and large stack size. Then verified that one causes a stack overflow and the other does not. Stack overflow message: canary 0x0 != 0xcdeafc00 SMM Handler caused a stack overflow Change-Id: I0184de7e3bfb84e0f74e1fa6a307633541f55612 Signed-off-by: Raul E Rangel <rrangel@chromium.org> Reviewed-on: https://review.coreboot.org/27229 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-06-27smm: Switch from %edx to %ebxRaul E Rangel
%edx gets clobbered before the c handler is invoked. This is just a cleanup cl to make the next cl look clean. BUG=b:80539294 TEST=verified SMI still works on grunt. Change-Id: I21bf41ed4fdeaaa8737c883f202a39cb57c2b517 Signed-off-by: Raul E Rangel <rrangel@chromium.org> Reviewed-on: https://review.coreboot.org/27228 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-06-27smm: Push a null stack base pointerRaul E Rangel
When generating a backtrace we need an indicator when we have hit the beginning of the stack. The i386 ABI states that %ebp points to the next stack frame. NULL can be used to indicate the end of the stack. We could add a NULL return pointer at %ebp+4, but I decided to omit it since a NULL stack pointer can be used as an indicator that there is no return pointer. BUG=b:80539294 TEST=built and tested on grunt Change-Id: I8a48114d31a5c716335d264fa4fe4da41dc5bf11 Signed-off-by: Raul E Rangel <rrangel@chromium.org> Reviewed-on: https://review.coreboot.org/27226 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-06-27smm: Make local variables relative to ebpRaul E Rangel
This reduces the cognitive overhead of referencing locals via esp since it changes with every push. BUG=b:80539294 TEST=built and booted on grunt. Change-Id: Ib7eb98ce3483d4fc803696c1b2496d8384317536 Signed-off-by: Raul E Rangel <rrangel@chromium.org> Reviewed-on: https://review.coreboot.org/27225 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2018-06-27smm: Clear SMRAM when debuggingRaul E Rangel
This makes it easier to spot unused RAM. BUG=b:80539294 TEST=built and tested on grunt. Verified unused memory was set to 0xcdcdcdcd Change-Id: I335eaf642bd8526f31819eaac95ce80c2df3c300 Signed-off-by: Raul E Rangel <rrangel@chromium.org> Reviewed-on: https://review.coreboot.org/27227 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2018-06-14cpu/x86: Make SMM stack size configurableRaul E Rangel
Stoneyridge is running into a stack overflow in the SMM handler. BUG=b:80539294 TEST=built on grunt Change-Id: I94e385497bd93c3638c69fb08d9b843c3bbb55ce Signed-off-by: Raul E Rangel <rrangel@chromium.org> Reviewed-on: https://review.coreboot.org/27034 Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-06-06arch/x86: Always select RELOCATABLE_MODULESKyösti Mälkki
All boards except those with NO_RELOCATABLE_RAMSTAGE or explicit select already had this feature built. Change-Id: I838e12141243ec49c2555c09269e07476eb0cfad Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/26816 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-06-06arch/x86: Drop leftover ROMCC supportKyösti Mälkki
Remove the last bits of building romstage with romcc. Change-Id: I70bb1ed23a5aeb87bf7641e0b0bd604a4e622e61 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/26807 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2018-06-04src/cpu: Get rid of whitespace before tabElyes HAOUAS
Change-Id: Ic501f5f9e8cd79774eb2a8d8902f01853d746470 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/26648 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-06-04cpu/x86/mp: Update CPU name in device structureNaresh G Solanki
Name the CPU device structure as per processor brand string. Before logs use to look like: APIC: 01 (unknown) Now logs looks like(depending on CPU on which it is tested): APIC: 01 (Intel(R) Core(TM) m3-7Y30 CPU @ 1.00GHz) BUG=None BRANCH=None TEST= Build & boot Soraka. Change-Id: I6af0e29bbbdb59406baeae32f7874ff9036a9c81 Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com> Reviewed-on: https://review.coreboot.org/26740 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-06-01src/cpu: Remove unneeded includesElyes HAOUAS
Change-Id: I8fb03ada29b37f96fb02122462dfb8ec7faa9d31 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/26732 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
2018-05-19cpu/x86: Add support to run function on single APSubrata Banik
This patch ensures that user can select a specific AP to run a function. BUG=b:74436746 BRANCH=none TEST=Able to run functions over APs with argument. Change-Id: Iff2f34900ce2a96ef6ff0779b651f25ebfc739ad Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/26034 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-05-14cpu/x86: Add support to run function with argument over APsSubrata Banik
This patch ensures that user can pass a function with given argument list to execute over APs. BUG=b:74436746 BRANCH=none TEST=Able to run functions over APs with argument. Change-Id: I668b36752f6b21cb99cd1416c385d53e96117213 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/25725 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
2018-05-14cpu/x86/mp: pass pointers to structures for AP callbacksAaron Durbin
In order to extend the MP callback infrastructure prepare for easier changes by making the AP callback get signalled by a single pointer to a local variable on the signaller's stack. When the APs see the callback they will copy the structure to a local variable and then set the acknowledgement by clearing out the slot. The reading and writing to the slots were implemented using inline assembly which forces a memory access and a compiler barrier. BUG=b:74436746 Change-Id: Ia46133a49c03ce3ce0e73ae3d30547316c7ec43c Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/26043 Reviewed-by: Subrata Banik <subrata.banik@intel.com> Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-05-04cpu/x86/mp: use __aligned macroAaron Durbin
Now that __aligned is around, take advantage of it. Change-Id: I93cdbe108d752088f34d3f5722dce5d9b90bcdc3 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/26022 Reviewed-by: Justin TerAvest <teravest@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-05-04cpu/x86/mp: remove unused functions and limit API exposureAaron Durbin
barrier_wait_timeout() was not used anywhere in the code. The remaining two functions, barrier_wait() and release_barrier(), are not used anywhere but the mp code. Change-Id: If09991f95306becc68b6008ae6448695fb4a2dca Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/26021 Reviewed-by: Justin TerAvest <teravest@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-05-03cpu/x86: Add infinite timeout support into run_ap_work() functionSubrata Banik
There might be certain requirement in user function where user might not want to pass any timeout value, in those cases run_ap_work() should consider infinity as timeout and perform all APs initialization as per specification. Set expire_us <= 0 to specify an infinite timeout. BRANCH=none BUG=b:74436746 TEST=run_ap_work() is running successfully with 0 expire_us. Change-Id: Iacd67768c8a120f6a01baaa6817468f6b9a3b764 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/25622 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-05-03arch/x86: Relocate GDT in verstage, romstage, and postcarHannah Williams
In each stage keep GDT in the code region. This accommodates platforms, such as glk, that are executing out of CAR. The gdt is small and loading it is trivial so just do it unconditionally instead of introducing another Kconfig. BUG=b:78656686 Change-Id: I01ded6e9b358b23e04d92bef5263bfe8c2a5ec5a Signed-off-by: Hannah Williams <hannah.williams@intel.com> Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/25895 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Justin TerAvest <teravest@chromium.org>
2018-04-30cpu/x86: Get rid of device_tElyes HAOUAS
Use of `device_t` has been abandoned in ramstage. Change-Id: I4c8acebb4a957a9600de15ea844f620a8909977b Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/23656 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-04-28arch/x86: Fix call for wait_other_cpus_stop()Kyösti Mälkki
Fix regression after commit 0cc2ce4 arch/x86: Clean up CONFIG_SMP and MAX_CPUS test In case PARALLEL_CPU_INIT=y BSP CPU no longer waited for APs to stop before proceeding to next bootstates or device initialization. Change-Id: Ie47e7896ed3d57d98a3ce6766e5c37b6dc22523b Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/25874 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-04-26cpu/x86: add limited runtime identity page mappingAaron Durbin
When employing PAGING_IN_CACHE_AS_RAM more areas need to be mapped in at runtime. Therefore, paging_identity_map_addr() is added to support adding identity mappings. Because there are a fixed amount of pages in cache-as-ram paging only the existing paging structures can be used. As such that's a limitation on what regions and length one can map. Using util/x86/x86_page_tables.go to generate page tables will always populate all the page directory pages. Therefore, 2MiB mappings are easy to map in. BUG=b:72728953 Change-Id: Ibe33aa12972ff678d2e9b80874529380b4ce9fd7 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/25718 Reviewed-by: Justin TerAvest <teravest@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-04-25arch/x86: add support for cache-as-ram pagingAaron Durbin
Processors, such as glk, need to have paging enabled while in cache-as-ram mode because the front end is agressive about fetching lines into the L1I cache. If the line is dirty and in the L1D then it writes it back to "memory". However, in this case there is no backing store so the cache-as-ram data that was written back transforms to all 0xff's when read back in causing corruption. In order to mitigate the failure add x86 architecture support for enabling paging while in cache-as-ram mode. A Kconfig variable, NUM_CAR_PAGE_TABLE_PAGES, determines the number of pages to carve out for page tables within the cache-as-ram region. Additionally, the page directory pointer table is also carved out of cache-as-ram. Both areas are allocated from the persist-across-stages region of cache-as-ram so all stages utilizing cache-as-ram don't corrupt the page tables. The two paging-related areas are loaded by calling paging_enable_for_car() with the names of cbfs files to load the initial paging structures from. BUG=b:72728953 Change-Id: I7ea6e3e7be94a0ef9fd3205ce848e539bfbdcb6e Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/25717 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Justin TerAvest <teravest@chromium.org>
2018-04-24compiler.h: add __weak macroAaron Durbin
Instead of writing out '__attribute__((weak))' use a shorter form. Change-Id: If418a1d55052780077febd2d8f2089021f414b91 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/25767 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Justin TerAvest <teravest@chromium.org>
2018-04-23cpu/x86: add paging_set_default_pat() functionAaron Durbin
Add paging_set_default_pat() which sets up the PAT MSR according to util/x86/x86_page_tables.go. Using page attribute types require a matching of the PAT values with the page table entries. This function is just providing the default PAT MSR value to match against the utility. BUG=b:72728953 Change-Id: I7ed34a3565647ffc359ff102d3f6a59fbc93cc22 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/25715 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Justin TerAvest <teravest@chromium.org>
2018-04-23cpu/x86: expose and add paging helper functionsAaron Durbin
Add the following functions for use outside of the paging module: void paging_enable_pae_cr3(uintptr_t cr3); void paging_enable_pae(void); void paging_disable_pae(void); The functions just enable and/or disable paging along with PAE. Disassembly shows equivalent output for both versions. BUG=b:72728953 Change-Id: I9665e7ec4795a5f52889791f73cf98a8f4def827 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/25714 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Justin TerAvest <teravest@chromium.org>
2018-04-23cpu/x86: move NXE and PAT accesses to paging moduleAaron Durbin
The EFER and PAT MSRs are x86 architecturally defined. Therefore, move the macro defintions to msr.h. Add 'paging' prefix to the PAT and NXE pae/paging functions to namespace things a little better. BUG=b:72728953 Change-Id: I1ab2c4ff827e19d5ba4e3b6eaedb3fee6aaef14d Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/25713 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Justin TerAvest <teravest@chromium.org>
2018-04-23cpu/x86: add pae paging module to all stagesAaron Durbin
In preparation for bringing in paging early always provide the paging pae module to all stages. Since we cull unused symbols this is a no-op. Compilation testing will happen all the time since the module currently doesn't compile without <arch/cpu.h> include. The current file is completely guarded with ENV_RAMSTAGE because it's using cpu_index() which is a ramstage-only construct. BUG=b:72728953 Change-Id: Ib4310b8206e5247fa220b42203bcd18d522d51ea Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/25712 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Justin TerAvest <teravest@chromium.org>
2018-04-11Correct "MTTR" to "MTRR"Jonathan Neuschäfer
The term MTRR has been misspelled in a few places. Change-Id: I3e3c11f80de331fa45ae89779f2b8a74a0097c74 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/25568 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-04-11cpu/x86/mtrr: Fix broken output ("indexis")Jonathan Neuschäfer
The missing space resulted in the following broken output: > ERROR: Not enough MTRRs available! MTRR indexis 10 with 10 MTTRs in total. Put the string on one line to make it obvious where the spaces should be and to help users of grep. Change-Id: Ib9e8109d88c1bf38e7dda3dbf1c8d47fb0d23265 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/25567 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-04-09cpu/x86/mtrr: Use single code path with/without holesNico Huber
Now that calc_var_mtrrs_with_hole() always chooses the optimal allocation, there is no need for calc_var_mtrrs_without_hole() any more. Drop it and all the logic to decide which one to call. Tests performed compared to "upstream" (before "cpu/x86/mtrr: Optimize hole carving strategy") on a Lenovo/X200s with 48MiB GFX stolen memory. 2GiB total RAM: 3 MTRRs saved MTRR: Physical address space: 0x0000000000000000 - 0x00000000000a0000 size 0x000a0000 type 6 0x00000000000a0000 - 0x00000000000c0000 size 0x00020000 type 0 0x00000000000c0000 - 0x000000007ac00000 size 0x7ab40000 type 6 0x000000007ac00000 - 0x00000000d0000000 size 0x55400000 type 0 0x00000000d0000000 - 0x00000000e0000000 size 0x10000000 type 1 0x00000000e0000000 - 0x0000000100000000 size 0x20000000 type 0 upstream: MTRR: Removing WRCOMB type. WB/UC MTRR counts: 7/8 > 6. MTRR: default type WB/UC MTRR counts: 4/7. MTRR: WB selected as default type. MTRR: 0 base 0x000000007ac00000 mask 0x0000000fffc00000 type 0 MTRR: 1 base 0x000000007b000000 mask 0x0000000fff000000 type 0 MTRR: 2 base 0x000000007c000000 mask 0x0000000ffc000000 type 0 MTRR: 3 base 0x0000000080000000 mask 0x0000000f80000000 type 0 patched: MTRR: default type WB/UC MTRR counts: 7/5. MTRR: UC selected as default type. MTRR: 0 base 0x0000000000000000 mask 0x0000000f80000000 type 6 MTRR: 1 base 0x000000007ac00000 mask 0x0000000fffc00000 type 0 MTRR: 2 base 0x000000007b000000 mask 0x0000000fff000000 type 0 MTRR: 3 base 0x000000007c000000 mask 0x0000000ffc000000 type 0 MTRR: 4 base 0x00000000d0000000 mask 0x0000000ff0000000 type 1 4GiB total RAM: no MTRRs saved but slightly more accurate alignment MTRR: Physical address space: 0x0000000000000000 - 0x00000000000a0000 size 0x000a0000 type 6 0x00000000000a0000 - 0x00000000000c0000 size 0x00020000 type 0 0x00000000000c0000 - 0x000000007cc00000 size 0x7cb40000 type 6 0x000000007cc00000 - 0x00000000d0000000 size 0x53400000 type 0 0x00000000d0000000 - 0x00000000e0000000 size 0x10000000 type 1 0x00000000e0000000 - 0x0000000100000000 size 0x20000000 type 0 0x0000000100000000 - 0x000000017c000000 size 0x7c000000 type 6 upstream: MTRR: default type WB/UC MTRR counts: 7/6. MTRR: UC selected as default type. MTRR: 0 base 0x0000000000000000 mask 0x0000000f80000000 type 6 MTRR: 1 base 0x000000007cc00000 mask 0x0000000fffc00000 type 0 MTRR: 2 base 0x000000007d000000 mask 0x0000000fff000000 type 0 MTRR: 3 base 0x000000007e000000 mask 0x0000000ffe000000 type 0 MTRR: 4 base 0x00000000d0000000 mask 0x0000000ff0000000 type 1 MTRR: 5 base 0x0000000100000000 mask 0x0000000f00000000 type 6 patched: MTRR: default type WB/UC MTRR counts: 7/6. MTRR: UC selected as default type. MTRR: 0 base 0x0000000000000000 mask 0x0000000f80000000 type 6 MTRR: 1 base 0x000000007cc00000 mask 0x0000000fffc00000 type 0 MTRR: 2 base 0x000000007d000000 mask 0x0000000fff000000 type 0 MTRR: 3 base 0x000000007e000000 mask 0x0000000ffe000000 type 0 MTRR: 4 base 0x00000000d0000000 mask 0x0000000ff0000000 type 1 MTRR: 5 base 0x0000000100000000 mask 0x0000000f80000000 type 6 8GiB total RAM: possible savings but WB still beats UC MTRR: Physical address space: 0x0000000000000000 - 0x00000000000a0000 size 0x000a0000 type 6 0x00000000000a0000 - 0x00000000000c0000 size 0x00020000 type 0 0x00000000000c0000 - 0x000000007cc00000 size 0x7cb40000 type 6 0x000000007cc00000 - 0x00000000d0000000 size 0x53400000 type 0 0x00000000d0000000 - 0x00000000e0000000 size 0x10000000 type 1 0x00000000e0000000 - 0x0000000100000000 size 0x20000000 type 0 0x0000000100000000 - 0x000000027c000000 size 0x17c000000 type 6 upstream: MTRR: Removing WRCOMB type. WB/UC MTRR counts: 7/11 > 6. MTRR: default type WB/UC MTRR counts: 4/10. MTRR: WB selected as default type. MTRR: 0 base 0x000000007cc00000 mask 0x0000000fffc00000 type 0 MTRR: 1 base 0x000000007d000000 mask 0x0000000fff000000 type 0 MTRR: 2 base 0x000000007e000000 mask 0x0000000ffe000000 type 0 MTRR: 3 base 0x0000000080000000 mask 0x0000000f80000000 type 0 patched: MTRR: Removing WRCOMB type. WB/UC MTRR counts: 7/7 > 6. MTRR: default type WB/UC MTRR counts: 4/6. MTRR: WB selected as default type. MTRR: 0 base 0x000000007cc00000 mask 0x0000000fffc00000 type 0 MTRR: 1 base 0x000000007d000000 mask 0x0000000fff000000 type 0 MTRR: 2 base 0x000000007e000000 mask 0x0000000ffe000000 type 0 MTRR: 3 base 0x0000000080000000 mask 0x0000000f80000000 type 0 Change-Id: Iedf7dfad61d6baac91973062e2688ad866f05afd Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/21916 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-04-09cpu/x86/mtrr: Optimize hole carving strategyNico Huber
For WB ranges with unaligned end, we try to align the range up and carve a hole out of it which might reduce MTRR usage. Instead of trying an arbitrary alignment, we try all and choose an optimal one. Also, restructure the cases when we try to find a hole. Which leads us to the following three: 1. WB range is last in address space: Aligning up, up to the next power of 2, may gain us something. 2. The next range is of type UC: We may align up, up to the _end_ of the next range. If there is a gap between the current and the next range, it would have been covered by the default type UC anyway. 3. The next range is not of type UC: We may align up, up to the _base_ of the next range. This is the end of the gap, if there is one. Change-Id: Iefb064ce8c4f293490a19dd46054b966c63bde44 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/21915 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-04-01x86: Increase time out for parking APs to 250msFurquan Shaikh
Change f43adf0 (intel/common/block/cpu: Change post_cpus_init after BS_DEV RESOURCES) moved post_cpus_init to BS_OS_RESUME for S3 path. This results in BSP timing out waiting for APs to be parked. This change increases the time out value for APs to be parked to 250ms. This value was chosen after running suspend-resume stress test and capturing the maximum time taken for APs to be parked for 100 iterations. Typical values observed were ~150ms. Maximum value observed was 152ms. BUG=b:76442753 TEST=Verified for 100 iterations that suspend-resume does not run into any AP park time out. Change-Id: Id3e59db4fe7a5a2fb60357b05565bba89be1e00e Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/25422 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
2018-03-09cpu/x86/mp_init: Print amount of time it takes in bsp_do_flight_planFurquan Shaikh
Since the timeout in bsp_do_flight_plan is bumped up to 1 second, this change adds a print to indicate the amount of time it takes for all the APs to check-in. TEST=Verified on Nami that it prints: "bsp_do_flight_plan done after 395 msecs." Change-Id: I4c8380e94305ed58453ed18b341b3b923949d7a8 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/25044 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-03-05cpu/x86/mp_init: Increase AP check-in time-out to 1secondFurquan Shaikh
Currently, the AP check-in time-out in bsp_do_flight_plan is set to 100ms. However, as the number of APs increases, contention could increase especially for resource like UART. This led to MP record time-out issues on KBL platform with 7 APs and serial-console enabled BIOS image. This change increases the time-out value to 1 second to be on the safer side and let APs check-in before continuing boot. BUG=b:74085891 TEST=Verified that MP record time-out is not observed anymore on Nami. Change-Id: I979c11a10e6888aef0f71b5632ea803a67bbb0ff Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/24965 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-02-16x86/mtrr: Enable Rd/WrDram mod in AMD fixed MTRRsMarshall Dawson
AMD's fixed MTRRs have RdDram and WrDram bits that route memory accesses to DRAM vs. MMIO. These are typically hidden for normal operation by clearing SYS_CFG[19] (MtrrFixDramModEn). According to BKDGs and AMD64 Programmer's Manual vol 2, this bit is clear at reset, should be set for configuration during POST, then cleared for normal operation. Attempting to modify the RdDram and WrDram settings without unhiding them causes a General Protection Fault. Add functions to enable and disable MtrrFixDramModEn. Unhide/hide as necessary when copying or writing the fixed MTRRs. Finally, modify sipi_vector.S to enable the bits prior to writing the fixed MTRRs and disable when complete. This functionality is compiled out on non-AMD platforms. BUG=b:68019051 TEST=Boot Kahlee, check steps with HDT Change-Id: Ie195131ff752400eb886dfccc39b314b4fa6b3f3 Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/23722 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-02-15cpu/x86/16bit/entry16.inc: Fix typo in commentPaul Menzel
Add the missing *r* of the possessive pronoun *your*. Change-Id: I2b520f398a904eb8e4412835d90bde1ee0b504b7 Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-on: https://review.coreboot.org/23758 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
2018-01-25cpu/x86: don't utilize UDELAY_IO if GENERIC_UDELAYAaron Durbin
If GENERIC_UDELAY is selected don't try to use UDELAY_IO as there will be a udelay() conflict at link time. BUG=b:72378235,b:72170796 Change-Id: I9e01c9daddd0629ecc38a809889b39a505c0e203 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/23422 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Justin TerAvest <teravest@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2018-01-15Intel sch board & chip: Remove - using LATE_CBMEM_INITMartin Roth
All boards and chips that are still using LATE_CBMEM_INIT are being removed as previously discussed. If these boards and chips are updated to not use LATE_CBMEM_INIT, they can be restored to the active codebase from the 4.7 branch. chips: soc/intel/sch Mainboards: mainboard/iwave/iWRainbowG6 Change-Id: Ida0570988a23fd0d13c6fcbe54f94ab0668c9eae Signed-off-by: Martin Roth <gaumless@gmail.com> Reviewed-on: https://review.coreboot.org/22027 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2017-12-20cpu/x86: set permanent SMM handler stack to 1KiBAaron Durbin
Not all SMM save state sizes equate to having enough stack in the permanent SMM handler. Therefore, ensure 1KiB of stack is available for each cpu's stack. Intel's save state size is 1KiB, but AMD's save state size is only 512. Therefore, decouple save state size from the per cpu stack size. BUG=b:70027919 Change-Id: I54b9e6f3cc0ad6ca3d7b60b2b422b5dc5a78a552 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/22950 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Justin TerAvest <teravest@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2017-12-11intel: Use MSR_EBC_FREQUENCY_ID instead of 0x2cElyes HAOUAS
Change-Id: Ib1b761fc417f1bb000f408d3bed5e8666963f51d Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/22603 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Martin Roth <martinroth@google.com>
2017-10-31x86/lapic: Use the existing lapicid() functionMarc Jones
coreboot has a lapicid() function, so use it. Change-Id: I7f536c229f271674c34d722b5db96ce665b720f1 Signed-off-by: Marc Jones <marcj303@gmail.com> Reviewed-on: https://review.coreboot.org/22192 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-10-16cpu/x86/mtrr: Remove var-MTRR alignment optimizationNico Huber
The code used to split up ranges >64MiB into 64MiB-aligned and unaligned parts. However in its current state the next step, calc_var_mtrr_range(), results in the same allocation, no mat- ter if we split the range up before. So just drop the split-up. Change-Id: I5481fbf3168cdf789879064077b63bbfcaf122c9 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/21914 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2017-10-02cpu/x86: Align stack in SIPI handlerMarshall Dawson
Ensure the stack is properly aligned in the SIPI handler. This avoids an exception when an aligned instruction is performed on stack data. BUG=b:66003093 TEST=boot kahlee built with gcc 6.3 Change-Id: Ibdd8242494c6a2bc0c6ead7ac98be55149219d7c Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/21768 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-09-17cpu/x86/sipi_vector.S: Use correct op suffixDamien Zammit
clang wont compile `cmp` asm opcode because it's ambiguous, use the correct op suffix `cmpl` Change-Id: I82da5a9065b382e182dc7d502c7dca2fc717543b Signed-off-by: Damien Zammit <damien@zamaudio.com> Reviewed-on: https://review.coreboot.org/21359 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-09-11cpu/x86/mp_init: remove adjust_cpu_apic_entry()Aaron Durbin
The original purpose of adjust_cpu_apic_entry() was to set up an APIC map. That map was effectively only used for mapping *default* APIC id to CPU number in the SMM handler. The normal AP startup path didn't need this mapping because it was whoever won the race got the next cpu number. Instead of statically calculating (and wrong) just initialize the default APIC id map when the APs come online. Once the APs are online the SMM handler is loaded and the mapping is utilized. Change-Id: Idff3b8cfc17aef0729d3193b4499116a013b7930 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/21452 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Subrata Banik <subrata.banik@intel.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
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